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Hello everybody
I would like to know from you if battery saver apps are usefull or just useless.
I am using right now super power and i think it could save some energy but it is also quite annonying for example to wait for the band switch.
It is worth to to deal with this apps or you doesnt care about the energy you loose and enjoy to have no troubles with such apps.
Just out of curiosity which battery saver app you use when you use one?
Greetz xnoobx
I use Juice Defender Ultimate and find it to extend the battery life a whole lot.
What it does is automaticly turn off data comunications when the screen goes off. It then turns data back on once every houre to let the phone check email and stuff like that.
You can customise almost everything. I really like it and would recommend it to anyone.
Xeno
Since I started using Green Power Premium, I find my phone on when I wake up in the morning
I too use juice defender, at this moment tells me my battery life has increased by x1.87
what that translates to in a percentage i dont know but hey !!! it saved some juice.
all these apps do is just make it quicker and easier to toggle things on/off, you could do it yourself but why waste time when the app does it for ya ???
some may argue that the app is constantly running in the background therefore its hogging battery, but too be honest, all you can do is try and see for yourself.
BUT !! i would recommend them to any one, Mainly Juice defender and some sort of toggle widget. hand in hand they work well
No battery savings app here.
If you prefer battery life over fancy looking screens (like myself), just get rid of all the constantly updating widgets and crap like that.
I managed to stretch my battery life to a consistent 48 hours per full charge. And that's with an average of 2,5 hours display on and a lot of listening to PowerAMP.
I just removed bloatware with titanium backup, set my wifi to sleep when the screen goes off, and lastly use setcpu app to downclock with certain profiles. I get excellent battery life now.
I'm wondering if there's something I can do/change to get more time with continual use out of a full battery.
After 4 hours of web browsing, my battery is down to 40%.
I'm on cm7 7.1 with 6/30 kernel
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I have the brightness turned down really low and I've used the battery callibration app, a few times.
No problems with deep sleep- just looking to get more time from continual use.
Any ideas?
Do you run an auto-task killer app? Because if so you're trading very short term memory savings for a boat load of processor time. Ever since Froyo, and especially Gingerbread, Google made significant changes to the idle-memory allocation management and active-process management logic. All task-killers accomplish in 2.2+ is wasting processor time because 90% of the time android will immediately(depending on the app's historic use and prioritization) restart said app thinking there was some sort of critical failure. (you can check for your self, get the app "System info pro", and preform a kill. For the next 10-15 minutes you'll watch nearly all of the killed processes return to life, and re-assume their use of active/idle ram.
Example: You have 20% ram available, not idle mind you, and the app you've chosen to run needs 35%. First android will prioritize and organize all of the idle apps(which reside in idle ram, kind of like a really big stepping stone between oblivion and active status), and start purging from the bottom-up. Continuing till there's enough free'd memory to launch. Android also has the option of clearing/shrinking assets as a last resort before playing the guessing game as to which active apps aren't important. I don't exactly know what conditions need to be met in order for an app to achieve active(more-protected) status, rather than idle, but it's fairly good at figuring it out, or android wouldn't be so godly at multi-tasking.
A little long-winded comment, but I don't prefer giving advice and backing it up with because I said so logic.
TL;DR For 2.2+ don't use Auto-task killers, they gorge on your precious mA/hr's. Use something like "System info pro" or any comparable app to singly kill, or a pre-setup batch kill, apps as you experience issues.
Other than that, my only advice for battery life would be to not have apps you don't regularly use installed. If they're not installed they can't second-hand or tertiary-hand waste power.
In all reality, most if not all further battery/CPU efficiency increases will come from the hard work put in by Dalingrin/verygreen/murdok to increase hardware optimization for our version of android/kernel. (I know there's more key players, just can't think of them off hand)
Woot- I'm not using a task killer app, but thanks anyway for the info!
It sounds like people.are getting better results that I am with heavier use (videos, gaming, etc.) , so I'm trying to figure out where I'm going wrong.
Are there any settings that I can change that might help?
I'm more familiar with iPhone battery saving settings- where themes and push email eat lots of battery.
Is that the same case with android?
How much do widgets impact battery life? I don't think I have alot- but maybe there are some that eat more battery than others?
I know your first post said while web browsing but when you aren't using data you can turn off wifi to save power. Like when playing a game or watching a video from emmc/sd.
woot1524 said:
Other than that, my only advice for battery life would be to not have apps you don't regularly use installed. If they're not installed they can't second-hand or tertiary-hand waste power
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Is there a way to find out which apps do this?
I haven't seen one of these threads yet, and I think it will benefit users of our D4 forum.
If you have any tips/tricks, feel free to add them here.
My first tip: TURN OFF 4G AT ANY TIME POSSIBLE. 4g is a battery vacuum.
Sent from my DROID4 using xda app-developers app
Here's the biggest....Widgets and Social Networks.
Watch your widgets (weather, news, facebook, etc..) that update/refresh. Most will allow you to adjust the refresh time. Set it high or to manual refresh.
Social Networks.....set them to refresh only. You don't need them refreshing their data in the background, just have them pull the latest down when you are actually using them (Facebook, Twitter, Google +, etc..). Set to manual refresh so that they only refresh when you are using the app. You don't need the latest status messages your friends are posting hitting your phone when it's in your pocket.
WiFi and. 3G/4G.....if you are in a location that makes your phone drop/search for signal and WiFi is available....use WiFi. The constant searching/seeking and establishing a 3G/4G network connection will kill your battery faster than having a constant 4G connection. This leaves the cellular band free for calls and all your apps that sync/pull data from the internet can happily run over the WiFi connection instead of killing your battery.
Suggested Apps
tcrews said:
Here's the biggest....Widgets and Social Networks.
Watch your widgets (weather, news, facebook, etc..) that update/refresh. Most will allow you to adjust the refresh time. Set it high or to manual refresh.
Social Networks.....set them to refresh only. You don't need them refreshing their data in the background, just have them pull the latest down when you are actually using them (Facebook, Twitter, Google +, etc..). Set to manual refresh so that they only refresh when you are using the app. You don't need the latest status messages your friends are posting hitting your phone when it's in your pocket.
WiFi and. 3G/4G.....if you are in a location that makes your phone drop/search for signal and WiFi is available....use WiFi. The constant searching/seeking and establishing a 3G/4G network connection will kill your battery faster than having a constant 4G connection. This leaves the cellular band free for calls and all your apps that sync/pull data from the internet can happily run over the WiFi connection instead of killing your battery.
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I second this, keep your widgest, number of home screens, and social networking apps down. Phones haven't reached the point of being able to be computers quite yet. Here are some apps to keep it snappy though:
Fast Reboot (by Great Bytes Software)- same as a battery pull without having to. Clears up a lot of RAM.
Lte On/Off - with this, you can switch to 3G (CDMA) only, and have it set to automatically default to that setting in the case of you switching to airplane mode for some reason. But it does reset the app if you turn of your phone. Fast Reboot doesn't clash with this app.
App Cache Cleaner - clears out a lot of the cache you otherwise would have to go to Manage Applications to clean out.
That's all I can think of at the moment for non-rooted users. I won't go into rooted b/c this is not the right place. But here are a few battery saving settings:
GPS - have only the Google one on, it's the fastest in my experience.
Display - have it set to the lowest setting when at all possible. Only lowers color distortion in my experience.
Developer optionss - go in here and turn on the force GPU settings. This may not be the case with everyone, but it gives my phone a little more zip and makes things smoother.
Apps (this is the very bottom of the developer settings) - Adjust these to your liking. Perhaps try setting the max number of backgrounded processes to 4.
I wonder how it looks on you ...
on my droid 4 and with Jelly Bean i lost ~5,5% battery by hour no matter what i do even on airplane mode.. still aroud 5% by 1h
please can you advice how its look from your side ?
I had the same thing with my Droid 4. I finally sbf'd it, and reinstalled everything one at a time. This fixed it.
Sent from my DROID4 using xda premium
i try SBF many time, formats, pull out sd card no matter what i do.. still lost 5,5 % battery by hour.. so max my battery keep 16-18h
(its there any possibility to move back to ICS ? )
Is there any way for the Droid to use only 2G networks? 3G/4G while idle seems to be the biggest battery drainer.
fathermocker said:
Is there any way for the Droid to use only 2G networks? 3G/4G while idle seems to be the biggest battery drainer.
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you just turn off your network data and you will still be able to run 2g
Jahoovi said:
you just turn off your network data and you will still be able to run 2g
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What I meant was if it was possible to just use 2G for Internet connections, instead of 2G+3G+4G.
a battery calibration after rooting device should help.. what it does is delete the fake information from the old/stock ROM and cleans up your battery to new life... better explained here... https://play.google.com/store/apps/details?id=com.nema.batterycalibration...
MiLoS R2D2 said:
a battery calibration after rooting device should help.. what it does is delete the fake information from the old/stock ROM and cleans up your battery to new life... better explained here... https://play.google.com/store/apps/details?id=com.nema.batterycalibration...
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I have not found that to be the case at all. The battery tools make that claim but it has not helped my battery life (stock or rooted) on any of my multiple droid 4 or d2g
karlsdroids said:
I have not found that to be the case at all. The battery tools make that claim but it has not helped my battery life (stock or rooted) on any of my multiple droid 4 or d2g
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Same here. In a couple cases its just made it worse. I will be trying out the extended battery in a couple weeks though. Hopefully it'll let me go at least a day without charging.
Sent from my DROID4 using Tapatalk
Making it better
The Droid 4 firmware just isn't very battery friendly... and it's not a new phone so your battery probably isn't either. Two things to consider.
LiIon batteries lose capacity over both cycles (cycling losses) and time (calendar losses.) If your battery is 18 months old and was charged nightly, you've lost 25% or more of the life anyhow... much more if the phone was kept plugged in after the charge and ran warm. And the drop accelerates with more cycles. It may be time to change the battery.
Adding JuiceDefender ( I use Ultimate) triples my battery life even in basic mode.
Replacing the battery is really simple; buy one from Amazon, open the back, carefully pry out the old one (it's held down by a double-sided tape), unscrew the connector (very small Torx, but jewelers screwdrivers work), swap and reassemble. $30 later (and a few hours to charge), you have your capacity back.
Wotta said:
The Droid 4 firmware just isn't very battery friendly... and it's not a new phone so your battery probably isn't either. Two things to consider.
LiIon batteries lose capacity over both cycles (cycling losses) and time (calendar losses.) If your battery is 18 months old and was charged nightly, you've lost 25% or more of the life anyhow... much more if the phone was kept plugged in after the charge and ran warm. And the drop accelerates with more cycles. It may be time to change the battery.
Adding JuiceDefender ( I use Ultimate) triples my battery life even in basic mode.
Replacing the battery is really simple; buy one from Amazon, open the back, carefully pry out the old one (it's held down by a double-sided tape), unscrew the connector (very small Torx, but jewelers screwdrivers work), swap and reassemble. $30 later (and a few hours to charge), you have your capacity back.
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Click to collapse
yeah after trying juice defender for about a month or so i noticed my phones battery life extend much more. so i opted to buy the ultimate juice defender and sure enuff more battery life... i am very pleased with this app. however if in the future i do want to extend the battery a lil more, then i will purchase a brand new battery and then replace the old one...
Turning off auto sync, turning off WiFi while on 4G works. Also make sure there's not any apps running in the background. Being root, there's apps you can download to close any open app
Sent from my Nexus 7 using Tapatalk
fathermocker said:
What I meant was if it was possible to just use 2G for Internet connections, instead of 2G+3G+4G.
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just go into your settings of your networking section:
settings-wireless&networks-mobilenetworks-networkmode
and choose ur favourite mode!
gsm=2g
wcdma=3g
lte=4g
---------- Post added at 11:30 PM ---------- Previous post was at 11:13 PM ----------
with CM it is an easy to safe much energy! and if you really want to do this on a right way, you really need to own a rooted system....
1. underclocked my cpu for 200mhz, dont have to comment.... if you use lightweight lounchers and care for background apps, it will noprob
2. use only 2g-networks, those are more available than every other networks, and even tcp/ip works with it, for whatsapp etc it is way enough bandwitch
very important!!!!
3. check your internal recievers after installing an app!! with "autorun manager" on a rooted device you can uncheck every function from every app, even autostart of an already killed facebook app, or statistical functions from apps which comes with most of them
4. get your brightness automated, if it is dark, you can automatically safe energy by a automatically regulation
5. maybe you would prefer to deactivate vibrations/haptic feedback/call vibration completely, its very energy consumpting.....
6. deactivate the gps-reciever complete, and just turn it on if you need it
7. set your display timeout as less than possible for your behaviour, 15 seconds may be enough
8. know what runs in background, evrything in background, sucks energy.....
9. deactivate nfc
10. deactivate bluetooth
with this i get a standby about ~1-3 days! and if im phoning and writing to much maybe not fully to one day. if i watch now on my energy tables, my display is consumpting still 40-60% battery per charge, but i dont think that even more safings would be possible
and with the app "tasker" you can even script this in endless environments
MiLoS R2D2 said:
yeah after trying juice defender for about a month or so i noticed my phones battery life extend much more. so i opted to buy the ultimate juice defender and sure enuff more battery life... i am very pleased with this app. however if in the future i do want to extend the battery a lil more, then i will purchase a brand new battery and then replace the old one...
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How does JuiceDefender save the battery? I have used many battery saver apps (including Juicedefender) and I always find that they run in the background and kill the apps which I would close anyway. Does it do anything besides kill background apps? By now I've deleted most background apps and have only kept the apps I want (which are few) and I still find battery life subpar.
Also definitely keeping 3G/4G off is a huge help. Wouldn't be able to make it very far without turning those off
I use Autorun Manager pro to freeze Google Play Services. Funnily enough, Play Store and Google Maps still work like a charm yet Google Play Services don't run background
Edited: With stock rom, install SetCPU and change the governor to hotplug. Underclock max frequency down to 800 MHz. You won't notice much different for normal tasks like watching videos, sms,...That setting is enough for me to play FF4 on MyBoy but playing heavy graphic games might not be snappy tho.
For me not using gaaps improve battery life. Every one knows for google play service that you cannot stop Instead I use calldav for my contacts.
me battery drain in me droid 4 jb 4.1.2 with gsm patch is of 60% for screen, the battery only run about 6hs, can i fix this? thanks
I've been revamping this thread for new devices for years hoping to share some of the love with newer users. Over the time I've been on android, I've learned a few simple things that can greatly assist in the battery life of our wonderful smartphones.
If you get anything out of the thread, please don't hesitate to rate it and drop me a thanks!
If you read the thread and like the tips, have a new one to suggest, or have a revision, please post it.
On a similar note, moderators, thanks for the sticky!
General Lithium Ion Battery Information - This link includes stuff about charging, including trickle charging aka SBC (Why NOT to use it, or at your own peril)
My tips for good battery life:
Tips for both Rooted and Non-Rooted users
1.Turn off all radios when not in use.
(Bluetooth, wifi, data, 4G/Wimax/LTE, NFC, etc) Use a widget like the default power widgets, Switchpro, or a similar app from the market. *Many rooted ROMs generally allows users to access these radios and other settings from the notification pulldown menu.* The radios of the phone draw power if on even if the user isn't actually utilizing the radio's functions. A radio searching for signal (if you are in a low-signal area) drains more than a radio with good signal, so again, turn 'em off when you aren't using 'em.
To manually turn off radios without a toggle, go to Settings>wireless & networks. This can be accessed from the notification pulldown and hitting the cog icon.
Wifi uses less battery than 3G, so use wifi when you can. Another important setting to note is more dependent on the user. If you live in an area without 4G LTE coverage (check here to see), then go into Settings>Mobile data>Network Mode and check CDMA Only. This will prevent your phone from unnecessarily searching for LTE coverage, which wastes a ton of battery life.
3. I love live wallpapers, and I’ve always been a fan of pixel zombies, but they are really only good for showing off due to their battery drain.
4. Set your screen timeout/brightness to something that fits you.
The screen is the highest drain of battery power on any smartphone. BY setting the timeout, you can prevent your phone from staying on when you don’t manually turn off the screen. Also, manually turn off your screen when you’re done with your phone.
Another huge tip is to turn on automatic brightness (it is enabled by default). This greatly reduces power consumption by constantly changing the brightness of your display, tailoring it to your needs.
Settings>Display, gestures & buttons>Sleep
I use 30 seconds.
4. Task killers used to be all the rage, but no longer.
Here is the ultimate, in depth, graphically assisted, explanation by the famous Fresh ROM's chef, Flipz. Shortly, in light of recent testing, really don’t do anything but force apps that the android OS needed to be open, and thus didn’t close, to re-open. So try not using them, unless for stuff like trying to figure out why your phone isn’t sleeping with system panel. You really won’t notice a performance difference, and the adverse effects you aren’t seeing will stop
+=+ A good alternative is the application SystemPanel Pro. It has a free version, but I highly reccomend purchasing the paid app. It basically monitors everything going on with your phone's usage both in real time an in terms of usage history. If your battery is draiging fast, it tells you what app was doing it, how much it was doing it, and allows you to stop it.
5. I'm sure you have all heard around that your phone isn't "sleeping".
This is referring to the phone's "awake" time, hence the name. When you go to Settings>Power>History. You can compare the lines from awake to screen on versus time on. "Time on battery" refers to the amount of time since the last reboot. The "awake time" is how long the screen has been active. The problem is, a lot of the time, due to the endless possibilities of inconsistencies between apps/ROMs/kernels/phones, the phone will not go to "sleep", drawing power proportionate to the screen being in use when it reality the phone is sitting idle.
If you compare these times and they are the same, or if you note the difference (turn off the screen for a minute, then re-check and they are the same), then your phone is not sleeping.
One solution is to reboot.
I recommend two apps to help monitor:System Panel and Better Battery Stats. These two apps (explained in their FAQ's and descriptions greatly aid in finding those rogues.
Usually, SystemPanel will show an app that has gone "rogue" and is keeping your phone awake.
-This is done by hitting menu>settings>monitoring enabled. Then after some time has passed, ht menu>monitoring>history>change tab to top apps, and see if anything is above, say, 2-4%.
Uninstall applications/reinstalling them slowly, checking after every install to see what is causing it is one tedious but surefire solution.
Lastly,
Follow these steps that I have discovered almost always work.
1. Reboot phone.
2. Instantly upon reboot, as soon as you gain control, open up some type of monitor/taskkiller
3. "kill all" tasks on startup; about 2 times in quick succession should do the trick.
4. Turn off the screen and leave it for about five minutes.
5. Check the up time v. awake time and see if they are the same.
6. If they are, repeat steps 1-5. If they are different, you are good.
6. Apps and Combinations to watch out for!
-Facebook- Tries to sync live feed all the time, HIGHLY recommend unchecking this box, as it creates a massive draw on data
-Skype- This app reportedly (I've seen it myself) likes to sync random data and open up the network for fun. Sign out of app when not in use to fix
-GTalk- This application keeps you constantly connected to all of our google contacts across of your accounts. I have several accounts that I must maintain, and by default the application had me signed in and maintaining a connection with all of them. Open GTalk, then hit each account and sign out to neutralize this puppy. Unless of course you want to stay signed in.
7. Manage your syncing.
This is a big one, and it differs from person to person. Go to Settings>Accounts and Sync, and take a look at what's going on there. Listed app titles means that there is an account syncing data. I, for example, have four email addresses, facebook, dropbox, box, weather, etc. That is bad. You should go through and turn off syncing for nasty apps you might not have known were accessing the internet, or limit the access of apps and services that you do want to allow.
The problem lies in the way this syncing is handled. Each app/service runs on its own schedule, making it particularly likely that your phone could almost always be establishing a data connection and trying to download data for your various apps. See step 2 regarding the app Juice Defender to handle this problem.
8. Vibrate/Haptic Settings
Vibration and haptic feedback eat up a surprising amount of battery. If you have the haptic feedback enabled, then every time you press anything your phone puts out some juice to make itself dance.
Settings>Sound>Vibrate on touch
Some apps have their own haptic feedback settings, and notifications are their own set entirely.
Tips for Rooted users:
1. Try out custom kernels.
By going to the Sprint HTC One Android Development section of the forums, you can see all of the different kernels being developed. These allow for all kinds of modifications like underclocking the CPU and undervolting, both of which save battery. To see how to use them, read the FAQ's in each thread's OPs.
Here is a great guide to custom kernel's by mroneeyedboh.
2. Use Rom Toolbox Pro, SetCPU, or some CPU clocking app in compliance with whatever your custom kernel allows.
This site will explain the basics of SetCPU: http://www.setcpu.com/
-Profiles from SetCPU should usually involve these for battery life optimization:
-Screen off at the minimum clock speed for both, with the max raised on level if sluggishness is apparent
-A temperature greater than “X”
-General power related profiles that lower cpu speed at lower battery levels
(Note that setcpu has fallen off of the radar, but clocking your cpu to levels that suit your needs is still viable, although many argue that the android system's core management should best be left alone. Read up for yourself and make an educated decision)
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NOTES:
*Some apps or processes begin to run at startup and keep the phone awake. These apps are not detected by things like spare parts or system panel, unless sometimes represented in the "system" process, in which case its usage will be unusually high.
This shouldn't take more than three repeats, and if it does, you need to factory reset, and slowly add apps back to see what's causing the problem.
___----When it comes to people claiming 20 plus hours of moderate/heavy use out of their current setup or other ridiculous absurdities, consider my position: No matter what you do, the cellphone battery is the cellphone battery. You can tweak it and customize it with kernels, ROMs, and settings, but none of that will turn it into a car battery. The main problem (besides a false sense of pride) that leads to these reports is the misunderstanding of what the usage levels are, so here’s my best summary:
* *Light usage – Phone screen actually on for maybe 0-2 hours. Things like a few texts, some emails, 20 minutes web browsing, etc.
* *Moderate usage – You watched a few youtube videos or similar apps, sustained web browsing, hundreds of texts, some games. Hours range from about 2-5 of screen on
* *Heavy usage – LOTS of video watching and games, pictures or video recording, or some high def gaming/movie watching for at least an hour to an hour and a half in total, with lots of emails and texts, browsing, and other app shenanigans. 5+ hours
*I’m sure everyone doesn't agree with all these numbers, but this is most likely a good average of what powerusers think. All specific hourage may vary due to differences in phones, batteries, ROMs, and kernels… Which also means that most battery comparisons are pointless; it’s only what you can improve on that counts!
I’ll update this whenever I see good stuff, people remind me, or I remember/come across things I do.
Hope it helps everybody!
Hit the "THANKS" button if I help you!
Good thread, we need more informational threads like this.
Biofall said:
* *Heavy usage – LOTS of video watching and games, 3D pics or video, or some high def gaming/movie watching for at least an hour to an hour and a half in total, with lots of emails and texts, browsing, and other app shenanigans. 5+ hours
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This isn't the Evo 3d forum Bio . Good to see another 3vo user around these parts haha.
Stickied for the time being
demo27vol1 said:
This isn't the Evo 3d forum Bio . Good to see another 3vo user around these parts haha.
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Haha yep!
Nice catch though, there was a lot there to change.
Hello Biofall,
I was wondering how effective is the Snapdragon BatteryGuru app from qualcomm vs juice defender if you ever tried that app before? I have used juice defender with my EVO 3D but I didn't liked the that the app was turning off Wimax even tough my phone was charging while using it.
Not only are we fighting the screen. We are fighting the quad core processor. It seems to be very aggressive.
Sent from my HTCONE using Xparent Blue Tapatalk 2
Well done.
treIII said:
Not only are we fighting the screen. We are fighting the quad core processor. It seems to be very aggressive.
Sent from my HTCONE using Xparent Blue Tapatalk 2
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Click to collapse
It's aggressive when it feels the need to ramp up. When installing several apps, the damn thing actually gets hot to the point where I put it in the freezer. [edit: this is dumb according to the device's thermal protection] I know that the components shouldn't be reaching those temps....
I'm on the lookout for more info on explicit effects of the quad core on battery life and direct ways to combat it.
eXplicit815 said:
Well done.
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Click to collapse
Thanks! I've been scouring for empirical info for years and I owe a lot of thanks to other people.
Turn off Juice defender. In fact, uninstall it. You will see your battery life is actually improved.
Leave the quad core component alone. If the cores aren't being used, they're offline. Offline is essentially 0 power consumption. The only case I can see improving battery by disabling cores would be for games. Otherwise, its probably detrimental.
Felnarion said:
Turn off Juice defender. In fact, uninstall it. You will see your battery life is actually improved.
Leave the quad core component alone. If the cores aren't being used, they're offline. Offline is essentially 0 power consumption. The only case I can see improving battery by disabling cores would be for games. Otherwise, its probably detrimental.
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Click to collapse
Juice defender has a large multitude of components. If some parts use more power for you, then you should post which of them you believe they were, before and after, possibly with battery graph screenshots.
On the last quad-core device that I had used there was a problem where the cores would ramp up unnecessarily for small tasks, so there is certainly a possibility for improvement.
On an unrelated note, there are other things that I want to add to this thread, including screenshots, so if anyone has anything to add, just tell me.
What I don't get is that a lot people seem to believe they know better than HTC's engineers. Doing things like forcing off cores, how do you know that's really saving power? For all you know, the power loss of enabling an extra core for a small task is insignificant to ramping up an already active core to do the same thing.
Sure there are some things you can do to improve power usage (such as avoiding wakelocks) but if you start changing numbers for how internal software power functions work, you should have some damn good reasons why. Even a graph isn't going to be terribly accurate unless you can substantiate the gains across multiple tests. Many of the improvements people mention often have an impact of less than 1% over the course of an entire charge, and that's nearly impossible to even measure. The battery percentage indicator is only an estimation and not only varies between device, but even varies based on the temperature!
Vincent Law said:
What I don't get is that a lot people seem to believe they know better than HTC's engineers. Doing things like forcing off cores, how do you know that's really saving power? For all you know, the power loss of enabling an extra core for a small task is insignificant to ramping up an already active core to do the same thing.
Sure there are some things you can do to improve power usage (such as avoiding wakelocks) but if you start changing numbers for how internal software power functions work, you should have some damn good reasons why. Even a graph isn't going to be terribly accurate unless you can substantiate the gains across multiple tests. Many of the improvements people mention often have an impact of less than 1% over the course of an entire charge, and that's nearly impossible to even measure. The battery percentage indicator is only an estimation and not only varies between device, but even varies based on the temperature!
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Sure man, sure. There are surely negatives associated with turning off, down, or generally altering core performance. However, taking the decisions that HTC engineers coupled with HTC software designers implemented for mass consumption as the best option for all users is foolish. The reason we have a development community revolves around that concept.
Several of the things I talk about have an impact in terms of hours the device can function without being plugged into an outlet, which has little to nothing to do with battery percent levels.
Sent from my HTC ONE using xda premium
Edited
Biofall said:
Sure man, sure. There are surely negatives associated with turning off, down, or generally altering core performance. However, taking the decisions that HTC engineers coupled with HTC software designers implemented for mass consumption as the best option for all users is foolish. The reason we have a development community revolves around that concept.
Several of the things I talk about have an impact in terms of hours the device can function without being plugged into an outlet, which has little to nothing to do with battery percent levels.
Click to expand...
Click to collapse
Battery percent or how long the device is on is still a hard comparison to make.
You could do the EXACT SAME THING on the phone twice, from full charge to dead, and you'd get a different length of time. Batteries aren't that consistent.
A couple things that bother me:
1. You stick the phone in the freezer because it gets warm. The phone already has thermal protections that keep it from overheating. The CPU can deal with far greater heat than you know (70C isn't even a problem). Anandtech was able to run it through the entire gauntlet of its tests (which are much harder on the device than just installing apps) without it ever triggering thermal protection. Most thermal protections exist solely for the battery's sake, which in itself can deal with 50C while charging, or even higher when not.
2. In almost all cases, it is better to let the CPU drive itself as fast and as hard as possible in order to finish tasks. Let it turn on all the cores and such. Because once it's done, it can go back into deep sleep, where everything is off. This is why almost all phones, not just HTC ones, are designed to do just that.
I agree with Felnarion's sentiment. Juice Defender is probably wasting more power just measuring your battery usage than it is helping you save.
Edited
Originally Posted by Biofall
Sure man, sure. There are surely negatives associated with turning off, down, or generally altering core performance. However, taking the decisions that HTC engineers coupled with HTC software designers implemented for mass consumption as the best option for all users is foolish. The reason we have a development community revolves around that concept.
Several of the things I talk about have an impact in terms of hours the device can function without being plugged into an outlet, which has little to nothing to do with battery percent levels.
Click to expand...
Click to collapse
Battery percent or how long the device is on is still a hard comparison to make.
You could do the EXACT SAME THING on the phone twice, from full charge to dead, and you'd get a different length of time. Batteries aren't that consistent.
A couple things that bother me:
1. You stick the phone in the freezer because it gets warm. The phone already has thermal protections that keep it from overheating. The CPU can deal with far greater heat than you know (70C isn't even a problem). Anandtech was able to run it through the entire gauntlet of its tests (which are much harder on the device than just installing apps) without it ever triggering thermal protection. Most thermal protections exist solely for the battery's sake, which in itself can deal with 50C while charging, or even higher when not.
2. In almost all cases, it is better to let the CPU drive itself as fast and as hard as possible in order to finish tasks. Let it turn on all the cores and such. Because once it's done, it can go back into deep sleep, where everything is off. This is why almost all phones, not just HTC ones, are designed to do just that.
I agree with Felnarion's sentiment. Juice Defender is probably wasting more power just measuring your battery usage than it is helping you save.
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Click to collapse
You could do the same thing and get different results, but in reality strong trends in usage are reflected in battery life.
As for this the CPU discussion, all that I said was that I'd like to look at more in depth studies or core process handling. So it bothers me too.
In regards to JD, it won't be making it into the next revision of the thread, as I have noticed unnecessary draw. Honestly android implemented most of the vital operations into the OS, so it is mostly useless coupled with the other tips and just general awareness.
Finally, the xda app is acting up, sorry for the clutter.
Sent from my HTCONE using xda premium
Thanks for the write up. I went from being a little unimpressed by battery life to blown away. Biggest saver from stock is dropping all the SYNC stuff. Totally unnecessary IMO. If you aren't consuming the news and updates (you know actually in the app), you probably don't need it refreshing. Still baffles me this is the from-the-factory type setup.
Phone used to eat 5-10% of my charge per hour with light use and barely make it through my "day" (~15hr away from charger). Now, after 6hrs. since it's been off the charger, I'm still at 91%.
Kill LTE and go to CDMA only if you don't have it in your area either, or it's still rolling out. Seemed to help too.
EDIT: And I should note my scores are with never letting the Data Connection completely sleep, so I can still get emails as they come in which I find important.
---------- Post added at 01:44 PM ---------- Previous post was at 01:17 PM ----------
Here's another tip: Go into Google Talk and make sure to sign yourself out if you don't use/care for the service.
Lauski said:
Thanks for the write up. I went from being a little unimpressed by battery life to blown away. Biggest saver from stock is dropping all the SYNC stuff. Totally unnecessary IMO. If you aren't consuming the news and updates (you know actually in the app), you probably don't need it refreshing. Still baffles me this is the from-the-factory type setup.
Phone used to eat 5-10% of my charge per hour with light use and barely make it through my "day" (~15hr away from charger). Now, after 6hrs. since it's been off the charger, I'm still at 91%.
Kill LTE and go to CDMA only if you don't have it in your area either, or it's still rolling out. Seemed to help too.
EDIT: And I should note my scores are with never letting the Data Connection completely sleep, so I can still get emails as they come in which I find important.
---------- Post added at 01:44 PM ---------- Previous post was at 01:17 PM ----------
Here's another tip: Go into Google Talk and make sure to sign yourself out if you don't use/care for the service.
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Click to collapse
Solid tips man. Will update the OP. I always forget to change my mobile data to CDMA only. Also, I had three accounts signed into gtalk, which was unnecessary.
Biofall,
Nice thread.. Very very nice.
The battery issue --
When it comes to people claiming 20 plus hours of moderate/heavy use out of their current setup or other ridiculous absurdities
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While I actually agree with what you say I do feel a bit different. I base mine on previous usage.
My days really fall into one of three areas. When you get old like me you will see your days are all about the same. :crying: My heavy use is going to be someone else light day.
For me I can judge based on different phones, kernels and roms. The 4g days I needed to have a charger at my desk. There was no way I could get through a whole day regardless of how many calls I made.
Now I am judging verse the LTE I had and and very surprised on how well its holding up even on
my
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heavy days.
Have you had time to try this yet? http://forum.xda-developers.com/showthread.php?t=2230403
Not sure it works, like you said some of these apps just use more than they save. I am going to see what happens over the next few days and see if I can see differences.
Your Facebook and sync statement, man do those hit home! I still have a few phones at work that these guys don't get it.
Gtalk.. beh turns on when you flash a new rom.. People have to remember to go back and shut that sucker off!
Thanks for your post, I am going to show a few people this, maybe it will open their eyes.
I generally knows how to flash stuff, use xposed, and whatnot. But I've never really done anything unified to focus on extreme battery saving. I am hoping to be able to switch profiles or something like that so I can keep the phone running on the lowest power possible but still be available for me to wake up to higher power for camera, gps, and messaging uses. The reason for this use case is because I will be hiking half of the Appalachian Trail this summer from Harper Ferry, WVA to Springer Mountain, GA, a total of roughly 1023 miles. Being able to stretch my battery as much as possible without actually enabling airplane mode or turning it off would be extremely helpful. I'm deaf so I cannot just simply borrow anybody else phone to call family. So I must be able to use my current phone for many different functions, including communication.
I do want to be able to use my phone as a primarily social media and messaging device. I have a wordpress blog that I'm trying to get in the habit of updating more often. I also have Instagram, Facebook, and the like. I will be bringing a pocket camera with me but I still want to be able to use my phone to snap pics for easy sharing to Instagram (it will autopost to both Facebook and Wordpress). One of my concern about the camera app is because I know that some ROMs have had issues with the camera's performance after a little while. Being on the trail for about 2 and half month, I won't have any opportunity to fix up my phone. Hence why I want to start testing thing out right now and have about a month or two to go before the actual hike.
GPS is obviously going to be vital. I have a guidebook with me that should covers everything and I almost never ever lose my cardinal direction so I'm not too worried about getting lost. But some GPS access could help just in case I need to figure out exactly how far I've missed a turn or how much I have left to go for the day. Plus it would be nice to have in case of emergency.
I do need bluetooth though. I have a Pebble watch that would be useful for me on the trail, I think. And I will be using a folding bluetooth keyboard on the trail too.
I remember once having Cyanogenmod on an old phone of mine with the ability to extremely underclock. It was incredibly laggy but I was able to create a shortcut to the clocking page so I could switch to a higher speed as I needed it. I'm hoping to be able to do the same with my Verizon's Nexus 6.
Anyway, I'm hoping for any input on which ROM, kernel, etc... would be recommended for setting up the absolute best battery saving and be able to switch the functionality high or low as I needs it. Thanks for any input.
Deafcyclist said:
... to focus on extreme battery saving. ...
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I know that this doesn't exactly answer the question you asked. And I've only owned my N6 since September, and despite flashing everything under the sun with my older devices, I have yet to leave stock on the 6.
That said, are you considering auxiliary batteries (some will give you about 3-4 full charges and are the size of a deck of cards) and possibly solar arrays to top them off? I would consider hanging one from the top of my pack during the day and taking my rests near clearings for direct sunlight. And if you're really looking to stretch your battery, but don't want to run in flight mode, I would consider leaving the BT devices home and maintaining a 2g connection while hiking, only switching to higher power radios when you need to upload images. Remember, in fringe areas, the higher power radios are going to use exponentially more power than when they have a solid signal. And the 2g radio has better reception in fringe areas, besides. Personally, I would use flight mode while sleeping.
One other thing about the radio: this may sound like snake oil, but it is my understanding that the radio's reception can be stronger when closer to the ground based on how the radio waves travel. (It may have been a placebo, but I'm certain I have seen benefit from this on occasion).
I would also make sure that things like NFC, ambient display, screen rotation, adaptive brightness, sync, notifications and vibration are turned off (Being deaf, I suppose that no vibration may not be possible). I would also uninstall (or disable) any and all apps that are not absolutely necessary for the trip. I would also uninstall the Facebook app, if you are using it. If you prefer an app experience for it, I would recommend the Metal app in it's place. No matter what rom you install, you should go for optimizing the power usage.
As for the camera, I would stay away from the AHDR modes and stick to single frame (huge battery saving there!)
I would set a completely black lock screen and home screen wallpaper, too.
I would also suggest an automation app for managing your power usage. Most allow you to have predefined groups of settings that you can assign home screen shortcuts or a quick settings tile. I recommend Automate by Llama Labs.
Good luck! And I hope you have a fantastic trip!
So far that I know of, is that the CPU and GPU speed and governors affect how much the battery is used (#2 heavy power consumer behind the active-matrix organic LED screen with light background) - the faster they run, the more power they require to do certain tasks. I have since set my Nexus 6 phone's processor at 200 - 300 MHz to 1 GHz across entire quad cores (with AutoSMP hotplug and ondemand governors) and GPU locked to 300 MHz maximum, and that configuration have been saving me a lot of power (and quite noticeable with the new battery I installed last week). The ROM I am using is crDroid (Android 7.1.1 Nougat), if you're wondering.
As for GPS, it depends. It may just sip or hog the power. Vibration? It depends on vibration strength (which can be adjusted with Kernel Adiutor Mod app), the stronger it is, the more current it require. Long story short, experimentation is necessary. I also recommend to use black theme under Substratum, it will also ease current consumption by the screen, which I have been doing also (Swift Black Substratum theme pack is what I'm using, perfect amount of blackness to save a good amount of power, and can be found in Google Play Store).
I second cameraddict's suggestion of a power pack. I have the 3000mah version of this, and it works very well.
https://www.amazon.com/PowerCore-Po...&qid=1490282378&sr=8-4&keywords=anker+battery
There are others with higher capacity, but this one would more than double your N6's capacity, and it's the size of a small cigar.
cameraddict said:
I know that this doesn't exactly answer the question you asked. And I've only owned my N6 since September, and despite flashing everything under the sun with my older devices, I have yet to leave stock on the 6.
That said, are you considering auxiliary batteries (some will give you about 3-4 full charges and are the size of a deck of cards) and possibly solar arrays to top them off? I would consider hanging one from the top of my pack during the day and taking my rests near clearings for direct sunlight. And if you're really looking to stretch your battery, but don't want to run in flight mode, I would consider leaving the BT devices home and maintaining a 2g connection while hiking, only switching to higher power radios when you need to upload images. Remember, in fringe areas, the higher power radios are going to use exponentially more power than when they have a solid signal. And the 2g radio has better reception in fringe areas, besides. Personally, I would use flight mode while sleeping.
One other thing about the radio: this may sound like snake oil, but it is my understanding that the radio's reception can be stronger when closer to the ground based on how the radio waves travel. (It may have been a placebo, but I'm certain I have seen benefit from this on occasion).
I would also make sure that things like NFC, ambient display, screen rotation, adaptive brightness, sync, notifications and vibration are turned off (Being deaf, I suppose that no vibration may not be possible). I would also uninstall (or disable) any and all apps that are not absolutely necessary for the trip. I would also uninstall the Facebook app, if you are using it. If you prefer an app experience for it, I would recommend the Metal app in it's place. No matter what rom you install, you should go for optimizing the power usage.
As for the camera, I would stay away from the AHDR modes and stick to single frame (huge battery saving there!)
I would set a completely black lock screen and home screen wallpaper, too.
I would also suggest an automation app for managing your power usage. Most allow you to have predefined groups of settings that you can assign home screen shortcuts or a quick settings tile. I recommend Automate by Llama Labs.
Good luck! And I hope you have a fantastic trip!
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Click to collapse
Thanks for all of the ideas. I already have a 10,000mah external battery that I will be using..Unfortunately solar panel are not very feasible on the trail, there is a reason why it is sometimes called a green tunnel.
I'll be removing virtually everything unneccesary from the phone. I do use Facebook a lot but I'm planning on using titanium backup to freeze the app (plus other apps) when I'm not using it so it should not be a problem there.
Good idea about limiting to 3g when I'm on the trail. There, I only need minimal data for emergency messaging and basic GPS sharing.
I do have a pebble smartwatch and I'm thinking that maybe using it would offload the battery usage from the phone to my watch allowing me to still have some notification and other details on the watchface.
Dr. Mario said:
So far that I know of, is that the CPU and GPU speed and governors affect how much the battery is used (#2 heavy power consumer behind the active-matrix organic LED screen with light background) - the faster they run, the more power they require to do certain tasks. I have since set my Nexus 6 phone's processor at 200 - 300 MHz to 1 GHz across entire quad cores (with AutoSMP hotplug and ondemand governors) and GPU locked to 300 MHz maximum, and that configuration have been saving me a lot of power (and quite noticeable with the new battery I installed last week). The ROM I am using is crDroid (Android 7.1.1 Nougat), if you're wondering.
As for GPS, it depends. It may just sip or hog the power. Vibration? It depends on vibration strength (which can be adjusted with Kernel Adiutor Mod app), the stronger it is, the more current it require. Long story short, experimentation is necessary. I also recommend to use black theme under Substratum, it will also ease current consumption by the screen, which I have been doing also (Swift Black Substratum theme pack is what I'm using, perfect amount of blackness to save a good amount of power, and can be found in Google Play Store).
Click to expand...
Click to collapse
Yeah, that's why I'm asking about it at this point. I feels that 2 months are long enough for me to experiment with this. I'm hoping to do the trick with governers so I'll be reviewing your comment after work today.
dahawthorne said:
I second cameraddict's suggestion of a power pack. I have the 3000mah version of this, and it works very well.
https://www.amazon.com/PowerCore-Po...&qid=1490282378&sr=8-4&keywords=anker+battery
There are others with higher capacity, but this one would more than double your N6's capacity, and it's the size of a small cigar.
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Click to collapse
Yeah, I have a 10,000 mAh battery, heh.
I'd go back to Marshamallow and not Nougat for battery savings. Also "Pixel Off" app to reduce brightness and turns off 1/2 pixels to save battery. You can also use Black and White mode in Developer Option to save battery. Kernel Audiutor can underclock to 1190 Mhz top and 300 Mhz bottom with "conservative" governor and "powersaving" mode.
HueyT said:
I'd go back to Marshamallow and not Nougat for battery savings.
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I disagree, because I haven't seen a difference between Marshmallow and Nougat regarding battery saving (even though stock Nougat ROM blows - all the reason to install custom LineageOS derivative ROM instead) - I know because I checked with new battery installed and I am still at 56% battery remaining ever since 5 days after charging to 100%, on the Nougat ROM with aggressive economy CPU settings I tailored on my phone, however, as for 1/2 "Pixel off" and black - white video option to save a bit juice, I agree even though it will make the UI quite ugly.
Dr. Mario said:
I disagree, because I haven't seen a difference between Marshmallow and Nougat regarding battery saving (even though stock Nougat ROM blows - all the reason to install custom LineageOS derivative ROM instead) - I know because I checked with new battery installed and I am still at 56% battery remaining ever since 5 days after charging to 100%, on the Nougat ROM with aggressive economy CPU settings I tailored on my phone, however, as for 1/2 "Pixel off" and black - white video option to save a bit juice, I agree even though it will make the UI quite ugly.
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https://www.reddit.com/r/GalaxyS7/comments/5ujoyj/nougat_battery_life_latest_btu_vs_marshmallow/
http://www.phonearena.com/news/Bad-...-Edge-after-Android-7.0-Nougat-update_id90859
I had another thought this morning. ( I realize that all my suggestions are minor, but lots of minor adds up.) I would also turn off all animations in Developer options.
I also wanted to agree about the monochrome color option in Developer options. And the dark theme, in general.
As for kernel settings, on other devices I've had, I had quite a bit of success with UV. If memory serves, once I had finished a weeks worth of experimenting, I gained about 10% from UV. And using the ondemand governor, with lots of tweaking, I was able to increase battery life without too big of a hit on usability. I found that powersave always created a very unpleasant experience.
edit:
One more thing, from my experimenting, you can also gain several % by changing how you interact with the device. Your governor will spike the CPU every time you touch the screen. One major difference you can make today is changing that behavior. When reading, scroll from the bottom all the way to the top of the screen and don't touch it again until you need to scroll all the way from the bottom. This isn't as hard or as silly as it sounds. Watch how you use your device, Many people touch the screen a lot
Despite every effort and tweak you can think of, you'll achieve only minimal battery life extension. Your best bet is to use the few tweaks that you feel are acceptable and rely on your 10000mah battery - nothing else will have anything like that effect.
dahawthorne said:
Despite every effort and tweak you can think of, you'll achieve only minimal battery life extension. Your best bet is to use the few tweaks that you feel are acceptable and rely on your 10000mah battery - nothing else will have anything like that effect.
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Click to collapse
Respectfully, I disagree. Each .5%-2% gain adds up. 10 tweaks at an average of .75% gain is 7.5% Add one major tweak that gives an average of 8% and you now have a 15.5% gain. My battery, right now, on official 7.0 (with no tweaks) averages 40 hours on battery with 6-8 hours of SOT. I have many other metrics for this... So 40 hours x 15.5% = total battery life of 46+ hours. Those 6 hours are not minimal effect. Especially when there is no outlet nearby for days.
It is possible with the right mix of OS tweaks, app settings and kernel tweaks to see an average gain in the 30-50% neighborhood.
This, by the way, comes from years of tweaking and experimenting on many devices. Going back to 2003 or so. You can check out my old posts on optimizing my old Galaxy S2, I shared a lot about that device.
No need for "respectfully" I'm sure it's really just a preference. A lot of tweaks may well add up to a respectable extension, but they will never triple it as a 10000mah battery will. I'd rather carry the extra few ounces and be sure that I have a reserve. Not arguing, just stating my preference.
dahawthorne said:
No need for "respectfully" I'm sure it's really just a preference. A lot of tweaks may well add up to a respectable extension, but they will never triple it as a 10000mah battery will. I'd rather carry the extra few ounces and be sure that I have a reserve. Not arguing, just stating my preference.
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Gotchya. I just mention all the tweaks AND the battery for his use case. As an initial full charge plus three extra charges(with the 10,000mah) without tweaks (conservatively) would net him a total of about 8 days of use. But with 20% savings from tweaks, that goes up to nearly 10 days. Quite a useful increase.
ps... I wrote: "respectfully" 'cause you know how forums can be. Sometimes I think it's best to be proactive and let the person your responding to know that you're not arguing. Cheers!