My XT1092, recently got updated to Lollipop i.e. Android 5.0
Two of my battery runs, starting from 100% full charge came down to like 5% and the phone shut down automatically as if it was 0%
Also on a side note, i did not put any mode on the battery saver mode for those two runs.
Now to test it, i kept my battery saver to start at 5% but i am not sure if it will run at 5% or just shut down
Anyone got an idea/solution for this issue ??
P.S. Even Motorola care chat, does not have an answer, all they said is to keep my phone in safe mode for a day and check it out....
Mine just did this the other day. When I pressed the power button it showed the battery with a little red fill and a huge yellow triangle with an exclamation mark in it. Also happened last night.
I have also had the same issue xt1092 and on lollipop.
well...
yea man, so the thing is motorola support said that, keep ur phone in safe mode for a day and recheck the issue...
so idk... :/
i am checking my battery use and for now i have kept my battery saver on 5% so i hope it starts on battery saver itself.. rather than shutting down...
My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!
M3drvr said:
My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!
Click to expand...
Click to collapse
it is quite misleading to say the least..
i did not have this issue with KitKat though..
might be a lollipop thing only
I'll join this list. Really annoying, and never happened on 4.4.4
I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.
So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.
InspectifierWrectifier said:
So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.
Click to expand...
Click to collapse
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.
raptir said:
I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.
Click to expand...
Click to collapse
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.
qwerty12601 said:
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.
Click to expand...
Click to collapse
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
raptir said:
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.
qwerty12601 said:
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.
Click to expand...
Click to collapse
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.
raptir said:
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.
Click to expand...
Click to collapse
Every android device I've owned, probably 12, including the 3 still in service with me (moto x before lollipop, nexus 7, nexus 4) all have accurate battery meters right down to 1%. Now are they adjusting on the fly and lowering/raising battery percent to accurately match calculations? Probably. But it adjusts to where the battery meter will read down to the very last percent. No surprises.
The whole point of this thread us that some moto x pures are shutting down at 5%. Maybe the battery really is at 0%, maybe its at 5 or 10%, but its a "bug" that the phone is shutting off at 5%. Its rather a flaw in on the fly calculations where its not accurately adjusting at lower percentages, or a software flaw. But it's a bug either way. That's the complaint here.
raptir said:
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
That is was Microsoft did with their Surface tablets, you can change it, I have mine set to power off at 10%
raptir said:
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.
Click to expand...
Click to collapse
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
Click to expand...
Click to collapse
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.
InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
Click to expand...
Click to collapse
Have fun killing your battery very quickly by fully discharging all the time
raptir said:
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.
Click to expand...
Click to collapse
Mobile device batteries are designed to be "fully" depleted. They are software controlled. You will never discharge a properly controlled battery 100%. This is why your device still has power to turn on and tell you that the battery is too low to turn on.
There are always exceptions to the rule. However, mainstream devices will almost always keep the battery at a safe level.
You cannot use a single chart on all lithium ion batteries. In fact, every one is different due to chemical and annode/cathode changes. This is why every battery has its own MDS for shipping purposes.
The small changes to batteries cause them to react differently to different usage patterns. When designing a battery these reaction patterns are supposed to be accounted for in the battery calibration.
A key engineering principal: a device should never be capable of destroying itself. Full discharge is normal operation for most devices.
Related
Is it really necessary to charge my phone for 8 hrs before the first use? I just got my phone and i dont know whether or not charge for 8 hrs or just use it right out of the box. thanks guys!
It's not 'necessary', your phone won't brink if you don't do it.
However, if you condition your battery - charge for 8 hours on first use and then drain it until it's dead, and repeat 2 or 3 times, the battery will have a much better life and useage time (in my experience). This is because all batteries have memory, even ones that say they don't.
xconradx said:
It's not 'necessary', your phone won't brink if you don't do it.
However, if you condition your battery - charge for 8 hours on first use and then drain it until it's dead, and repeat 2 or 3 times, the battery will have a much better life and useage time (in my experience). This is because all batteries have memory, even ones that say they don't.
Click to expand...
Click to collapse
Are you sure what you are talking able? Li-ion don't have memory effect. And if fact "A stand-alone Li-ion cell must never be discharged below a certain voltage to avoid irreversible damage." (quote: http://en.wikipedia.org/wiki/Lithium_ion_battery)
so its not necessary? im confused what did everyone else do when you first received your phone?
I work in the business... I'm sure.
First off, wikipedia is not the most reliable source. Second, your phone won't let you discharge your battery that far, it will shut off long before the battery gets that dead. Lithium Ion batterys can lack the 'memory effect' (effect being the keyword), but they do have memory.
Either way, no need to get up in arms about it. Just charge your phone up all the way, use it till the kaiser tells you to recharge, something like "Replace or recharge your battery to avoid data loss". It's like 10 or 15 percent. When you get there plug it in and charge it all the way up.
You arnt going to hurt your battery as posted above. Correct, if you get way too low you may have issues (why batteries go dead when they sit for a long time), but your kaiser won't let that happen. It will shut itself off first.
xconradx said:
I work in the business... I'm sure.
First off, wikipedia is not the most reliable source. Second, your phone won't let you discharge your battery that far, it will shut off long before the battery gets that dead. Lithium Ion batterys can lack the 'memory effect' (effect being the keyword), but they do have memory.
Click to expand...
Click to collapse
Thanks for the info. If they don't have the effect, then what's that memory going to hurt us?
jackleung said:
Thanks for the info. If they don't have the effect, then what's that memory going to hurt us?
Click to expand...
Click to collapse
I'm not completely sure what you are asking... but...
The memory won't hurt you. True, you could probably take it right out of the box and use it however you wanted. The memory just helps tell the battery know when it's completely full (to switch to trickle charging if supported by the application), or when it's dead and in danger.
I'm too lazy to try and explain it, so I copied this... I should have refered to it earlier as "digital memory" earlier because it's not at all the same as NiCAD memory which is what most people understand - hope this clarifies.
From - http://www.batteryuniversity.com/parttwo-34.htm
"Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate." ...
"Batteries with fuel gauge (laptops, *cell phone {added by me}) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely. "
Hope this helps. There is a reason why the manufacturer recommends this. Battery performance as well as the accuracy of your gauge can somewhat depend on this sort of conditioning. This is the reason you may see your battery gauge go up after a restart, or when you charge your phone it may say 90% one second and 100% a few later.
Regardless, this is a crash course in batteries.
Ok so this is what i noticed has been happening with my phone...
I wake up in the morning and i unplug my phone from charger at 100% battery life...
after about 1-2 hours of no use (outside of occasional check of time) and no programs running i notice that 25% of life has diminished...
i have turned 3g off and done most of the kaiser tweak settings that help with battery life. for the rest of teh day i can use the phone and battery life runs normally but it seems the first 25 to 30% drops real fast without use
is everyone experiencing this? is it normal?
KP
The problem lies in your first sentence. "I wake up in the morning and unplug my battery." You are charging your battery too much thus killing it's battery life. I only charge my phone in the day while I'm at work. That way I can unhook it when it's fully charge. I would go on ebay and type in OEM battery Kaiser. You can pick one up for 15-30 dollars new.
From what I understand. Leaving your battery in the charger when it is fully charged should not damage the battery as long as its not there for an excessive amount of time but i might be wrong. Either way i have no way of charging the phone during the day as im on the go most of the time so this would mean even if i get a new battery it wont matter because it wile eventually do the same as i have only used this phone for about 3 or 4 months now. any other possibilities or solutions?
or should i just take it as it is and just buy a new battery maybe a bigger seido?
I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.
netboy said:
I thought Lithium ion batteries have overcharge protection. I charge mine overnight which I am sure a lot of others do also with no negative effects.
Click to expand...
Click to collapse
I do... Maybe I shouldn't?
I would hope it has Overcharge Protection!!!
With NiCad Batteries if you overcharged them you would kill the life of the batteries.
And while all batteries do this LiIon are least tolerant. If you overcharge a LiIon battery, that is without Overcharge protection, the LiIon Battery with BURST INTO FLAMES! Thus the problem with the Sony Batteries that caused all those Laptop battery recalls.
gqstatus0685 said:
You are charging your battery too much thus killing it's battery life.
Click to expand...
Click to collapse
Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.
I have the exact same "problem" with my Tytn II.
Is slows down evenly though. (So the first 5 % of battery vanishes in minutes basically while the last 5 % can last for an hour, when it's half full % will last somehwere in between these two extremes).
Personally I've just interpreted this as poor measuring done by the hardware and/or software. (Ie I don't think the battery performs better the less full it gets as the meter in Windows would have me think)
kilrah said:
Thats total BS with lithium batteries.
To the OP: Try running down your battery completely once, until the phone switches off by itself, then recharge fully. If you never do it and always recharge before the battery is empty the battery's power meter can lose its calibration over time and display weird things.
If it doesn't help, and you can notice a drop in overall life time you might need a new battery.[/QUOTE
thanks ill try it out as soon as i get a chance...
kp
Click to expand...
Click to collapse
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
Click to expand...
Click to collapse
Hmm...I don't see how turning my phone off to charge would increase the charging rate dramatically. My phone in standby mode uses 1% every 2 hours.
depends highly on roms and especially on radios.
with a crappy rom, battery could drop as fast as 10% per hour.
with a decent rom, battery drops in standby mode at a rate about 2% per hour.
duke0102 said:
may seem a daft point but after draining the battery, dont charge with the phone turned back on. gives a fuller charge cos its not being used and makes it quicker to charge, lol
Click to expand...
Click to collapse
If the phone is on but on standby that barely changes a thing. If it's on, with display illuminated then yes it might take you an extra 20 minutes to charge.. no big deal either.
*UPDATE*
ok so i drained my battery last night completely(turned on navizon, tt7, and skyfire) which took me about at most 2 hours.
Put it in for a charge
woke up at 9 and checked to see and it was 100%
I have push mail set to update every hour and i also run pocket sportscenter autoupdates which updates every 10 to 15 minutes
I used the phone for 5 minutes of calls
5 minutes of web surfing
a few text messages
and the occasional time check
at 6:30 pm battery life was at an amazing 90%
i was thrilled.
i continued to surf the web heavily from 730 to 8
a few more text messages
at 9 battery was at 67%
so i gotta believe that draining the battery helped recalibrate it...
i guess every 2 or 3 months i got to drain it out and give a full charge
thanks for the help guys
really appreciate it
i am one of those anal people who likes to keep his battery in good condition by always letting it empty completely before recharging and i have noticed alot that i run into a situation where i need the phone fully charged for some reasion or another but dont have the time to sit around with all the nic's turned on waiting for it to die. i have seen a battery discharge feature on some devices that will rapidly drain the battery to 0 so it doesent develope memory when you plug it back in i was wondering if anyone has made one of these for the raphael?? any links would be apreciated.
i have already rtfw'ed and searched everyone seems so obsesed with prolonging battery life not draining it so i have had no luck
You are actually doing more damage to the battery draining it all the way then if you'd just charge it when you can if you are indeed doing this every single time.
All HTC devices use a Li-ion (Lithium Ion) battery, which do not get a charge memory in the cells like rechargeable batteries of yesteryear.
Instead their life cycle is based on number of discharges and recharges and the batteries age. If you're needlessly discharging your battery and recharging it, you are dramatically shortening it's life.
You should read up...
http://en.wikipedia.org/wiki/Lithium_ion#Advantages
...they may be irreversibly damaged if discharged below a certain voltage.
Click to expand...
Click to collapse
Like many rechargeable batteries, lithium-ion batteries should be charged early and often.
Click to expand...
Click to collapse
Lithium-ion batteries should not be frequently fully discharged and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.
Click to expand...
Click to collapse
It is clearly stated in the Fuze manual that it is SUGGESTED that you fully discharge your battery and fully recharge to get the most out of it.
thanks for the advice i will look into it but i would still apreciate someone answering my origional question as to wether or not anyone has actually made one of these apps
PwnCakes193 said:
It is clearly stated in the Fuze manual that it is SUGGESTED that you fully discharge your battery and fully recharge to get the most out of it.
Click to expand...
Click to collapse
This is almost certainly suggested so the battery meter maintains a good calibration. As GldRush points out, you are not doing any damage to the battery or shortening its life by short-cycling it. You could also harm it by deep-cycling it. Allowing the phone to go to 0% is not, however, deep-cycling the battery. For the phone, 0% is the point at which the operating voltage of the battery has dropped to a level that is approaching the lower limit for the board set (with a safety factor included). That's almost certainly nowhere near a discharge level that could damage the battery.
So if you want to let/make your phone go to 0% before every charge you are probably wasting your time (except for the slight benefit of frequent battery meter calibration), but also probably not harming the battery.
After the 2nd battery warning notification comes up, I end up just launching youtube and running a video. The use of 3g coupled with video playback gives me an auto shutdown of the unit with 5 mins or so.
Turn on the GPS. That should drain it in less than an hour.
I haven't seen any discharge apps but I do know that the biggest battery vampire is palringo...start palringo and join a group with a lot of members and your battery will drain at least 20% in about 10 minutes...even if there are no conversations going on you will still get a dramatic battery drain running palringo in the background
Haha, or use an older version of S2U That drains your battery like crazy too.
Way to discharge a full battery within an hour:
- Start Wifi and let it stay on (no need to connect).
- Start Bluetooth and keep it on (also no need to connect).
- Open Google maps and let it use GPS
- Put Google maps in the background and start playing Teeter.
it's almostly no necessary......
mikeloeven said:
i am one of those anal people who likes to keep his battery in good condition by always letting it empty completely before recharging and i have noticed alot that i run into a situation where i need the phone fully charged for some reasion or another but dont have the time to sit around with all the nic's turned on waiting for it to die. i have seen a battery discharge feature on some devices that will rapidly drain the battery to 0 so it doesent develope memory when you plug it back in i was wondering if anyone has made one of these for the raphael?? any links would be apreciated.
i have already rtfw'ed and searched everyone seems so obsesed with prolonging battery life not draining it so i have had no luck
Click to expand...
Click to collapse
These batteries actually get hurt by completely discharging - you're not supposed to do that - you'll kill the battery by bringing it down to 0% too often..
(but to answer you - that's easy.. turn it on.. this phone's a battery hog..)
-m
There's an interesting artice in The Reg about lithium battery maintenance (albeit more related to netbook and laptop batteries).
http://www.reghardware.co.uk/2009/05/07/beginners_battery_maintenance/
not needed, but just run palringo and google maps while listening to music streamed from di.fm in Kinoma. (pretty much what I run day in and out )
Try the following link
http://forum.xda-developers.com/showthread.php?t=516458
Jouke74 said:
Way to discharge a full battery within an hour:
- Start Wifi and let it stay on (no need to connect).
- Start Bluetooth and keep it on (also no need to connect).
- Open Google maps and let it use GPS
- Put Google maps in the background and start playing Teeter.
Click to expand...
Click to collapse
this works for me
Here I was, just using BlinkFeed, doing a bit of web browsing... I didn't have the battery's state in my mind, as I saw a half-full icon on the top right. Suddenly, beep, scrolly animation, cutoff. What? I rebooted the phone while tethered to power after waiting for the blinking orange LED to glow steady, and opened my task manager app, which also tracks battery life. It had died at around 50%. I've read other threads of people's battery things being ill-calibrated and missing 10-20%... but 50%? Really?
But then again, I haven't normally been charging the device fully. The same task manager reports 100% power being 4.3 volts, and I've read that 4.3 volts on a li-poly chemistry reduces its useful life by 50% when compared to 4.2 volts, so I've typically been charging to 80-85%. But I've had this happen several times, and I do charge to 100% after it does happen. I wouldn't think that 5-10 incomplete charge cycles like this would be enough to throw the gauge off so drastically.
This, in addition to the perpetual-suiciding problem my phone has had since the second-to-most-recent minor OTA Sprint update...
Wipe battery stats?
Sent from my HTCONE using xda premium
flyboy21141 said:
Here I was, just using BlinkFeed, doing a bit of web browsing... I didn't have the battery's state in my mind, as I saw a half-full icon on the top right. Suddenly, beep, scrolly animation, cutoff. What? I rebooted the phone while tethered to power after waiting for the blinking orange LED to glow steady, and opened my task manager app, which also tracks battery life. It had died at around 50%. I've read other threads of people's battery things being ill-calibrated and missing 10-20%... but 50%? Really?
But then again, I haven't normally been charging the device fully. The same task manager reports 100% power being 4.3 volts, and I've read that 4.3 volts on a li-poly chemistry reduces its useful life by 50% when compared to 4.2 volts, so I've typically been charging to 80-85%. But I've had this happen several times, and I do charge to 100% after it does happen. I wouldn't think that 5-10 incomplete charge cycles like this would be enough to throw the gauge off so drastically.
This, in addition to the perpetual-suiciding problem my phone has had since the second-to-most-recent minor OTA Sprint update...
Click to expand...
Click to collapse
The battery stats have nothing to do with battery life. They are just statistics used to diagnose. Lithium ion batteries also do not have a memory and don't really need calibrating. The type of issue you are having stems from one of two things; Bad charger or bad batter. Bad batter would most likely be something straight from the mfr. Bad charger would be obvious. Try using the standard HTC charger in a wall outlet only for a few days or a week and see if it happens again. Sometimes this could be a one time thing meaning what I call a "bad charge." It will go away after a "good charge." Just eliminate variables by using the same charger in the wall every time and charge for the same amount of time and if the problem goes away in a week then you have your answer : )
Btw i'm a long time Sprint tech and I specialize in battery life. Just in case you need educated advice.
After the phone-death that I captured above, I charged the device to 100%, and then left it to drain until death again. It lasted about two days with very light use, dying when it reported 10%, again with zero warning other than the ~15% low battery indication. I know that deep-cycling these batteries isn't healthy for them, but it seems to me that the cycle helped a bit.
However, I do still feel concern about the reported full-charge voltage, ~4.3 volts. Does such a voltage not severely reduce the number of cycles the battery can go through in its lifetime? Also, what is supposed to be the cutoff voltage for this battery chemistry? I thought it could go down to ~3.0 volts? My phone seems to be cutting off at a reported 3.5 volts.
That, and my perpetual-suiciding problem. Though, I'm about to encounter a change of scenery that will take me downtown, so I'll hold off on complaining more about that until I see whether or not the signal strength influences that.
I just bought my Z3C a couple of days ago. First thing I did was charge it fully and then I started using it. It went from 100 to 0% in about 21 hours. During that time a SIM card was inserted only during the last couple of hours, but I did use the phone fairly often. The attached thumbnails show the details.
I did notice that it almost loses no charge in standby. But today I noticed an increased decline during screen on time after standby time. See last screenshot attached.
I expected more from this battery based on reviews and Sony's claims. Is this normal or is my battery faulty? While some here report similar numbers, others seems to get a lot more out of their batteries.
Amplifiction said:
I just bought my Z3C a couple of days ago. First thing I did was charge it fully and then I started using it. It went from 100 to 0% in about 21 hours. During that time a SIM card was inserted only during the last couple of hours, but I did use the phone fairly often. The attached thumbnails show the details.
I did notice that it almost loses no charge in standby. But today I noticed an increased decline during screen on time after standby time. See last screenshot attached.
I expected more from this battery based on reviews and Sony's claims. Is this normal or is my battery faulty? While some here report similar numbers, others seems to get a lot more out of their batteries.
Click to expand...
Click to collapse
You shouldn't expect more from this battery based on reviews, you should just look at what some people got out of their phones.
Give the phone some time to settle in. And don't forget that it's almost summer for us now, more sun means using the screen at a higher brightness so that will also have some impact on your battery life.
Look what kind of useless apps are running in the background and stop them and don't worry about the estimate, it really doesn't mean much. Right now my estimate is 9 days, because I barely touched my phone.
I really don't believe in such a thing as faulty battery. Charge your phone, restart it and see how it reacts then.
Is Stamina mode enabled? If not, then what you have is typical. Getting a full day out of one charge is about all you can expect from a smartphone without some form of battery saving measures enabled.
Dsteppa said:
You shouldn't expect more from this battery based on reviews, you should just look at what some people got out of their phones.
Give the phone some time to settle in. And don't forget that it's almost summer for us now, more sun means using the screen at a higher brightness so that will also have some impact on your battery life.
Look what kind of useless apps are running in the background and stop them and don't worry about the estimate, it really doesn't mean much. Right now my estimate is 9 days, because I barely touched my phone.
I really don't believe in such a thing as faulty battery. Charge your phone, restart it and see how it reacts then.
Click to expand...
Click to collapse
I'd indeed like to hear from people whether or not they get comparable performance. Do you? I'll keep an eye on my battery during the next few days. So you think this is not abnormal?
PuffDaddy_d said:
Is Stamina mode enabled? If not, then what you have is typical. Getting a full day out of one charge is about all you can expect from a smartphone without some form of battery saving measures enabled.
Click to expand...
Click to collapse
I'm not sure at what point I turned on Stamina in the battery cycle I posted. It is turned now, however, and I hope it will make a difference. What do you get out of your Z3C?
Amplifiction said:
I'd indeed like to hear from people whether or not they get comparable performance. Do you? I'll keep an eye on my battery during the next few days. So you think this is not abnormal?
Click to expand...
Click to collapse
Here are my results:
http://forum.xda-developers.com/showpost.php?p=59933232&postcount=48
At the moment I have 3d 10h battery life and still 40% left. Tomorrow after work @ 12 our time I'll charge my phone again, so that's almost 5 days.
(But that's with a lot of idle time)
(Vergeet geen apps te freezen en je telefoon te restarten)
With moderate usage, you should generally expect just about 2 full days of battery life from this phone. And that is with Stamina mode enabled to help the phone sleep when the screen is off. However, this is not accounting for any extreme measures some people take to extend their battery life (e.g. disabling background data/sync). Once you remove these features, you're no longer using the smartphone as it was intended, so it's not a fair comparison.
I can easily get 2 days out of my Z3C before I think about charging it. And I've never used Stamina Mode.
I guess I could install some app to monitor battery usage and stats but I'm not that bothered tbh.
We all manage a variation on the smartphone thing, in terms of data, wifi, gaming, emails, browsing, texts, calls, etc, and its slightly different, in terms of use, from one user to another.
I'd echo the sentiments of another user who said give your battery time to settle in. Give it a full charge, discharge cycle a couple of times, and don't worry too much about it!
Peace.
Thanks for your feedback, guys. I'm currently fully charging and discharging my battery. Several cycles complete.
The best result I've gotten so far is a little under two days with moderate usage and thorough measures to increase battery life. I turn on airplane mode when I go to sleep. Stamina mode is also enabled, but only the reduced performance part. I'm also using 2battery, which turns off WiFi and data when phone is in standby, and turns them back on briefly every 15 minutes. (While I agree that turning off data connections defeats the purpose of a smartphone, I also believe that there is no need for a constant connection when I'm not using my phone. 2battery achieves that. Although I must say it doesn't seem to kick in a lot on lollipop.)
So despite these measures my battery seems weak compared to yours. Anyway, I'll be taking your advice and I'll give it some more time.
Sent from my D5803 using XDA Free mobile app
Amplifiction said:
Thanks for your feedback, guys. I'm currently fully charging and discharging my battery. Several cycles complete.
The best result I've gotten so far is a little under two days with moderate usage and thorough measures to increase battery life. I turn on airplane mode when I go to sleep. Stamina mode is also enabled, but only the reduced performance part. I'm also using 2battery, which turns off WiFi and data when phone is in standby, and turns them back on briefly every 15 minutes. (While I agree that turning off data connections defeats the purpose of a smartphone, I also believe that there is no need for a constant connection when I'm not using my phone. 2battery achieves that. Although I must say it doesn't seem to kick in a lot on lollipop.)
So despite these measures my battery seems weak compared to yours. Anyway, I'll be taking your advice and I'll give it some more time.
Sent from my D5803 using XDA Free mobile app
Click to expand...
Click to collapse
I have like never used Stamina mode, try out these apps:
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
You need to be rooted tho (Which shouldn't be a problem)
Are you using GPS or is it always on?
Your battery is fine. You probably lost some standby life when you put a SIM in it, as that would cause your cell radios to begin seeking your carrier's towers.
Do activate Stamina mode if you haven't already done so.
Dsteppa said:
I have like never used Stamina mode, try out these apps:
https://play.google.com/store/apps/details?id=com.rootuninstaller.batrsaver
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
You need to be rooted tho (Which shouldn't be a problem)
Are you using GPS or is it always on?
Click to expand...
Click to collapse
Thanks for the pointers! I have Better Battery Stats, and will give the other two a go. Sounds like DS Battery Saver goes beyond 2Battery, which just manages data and wifi. It can also kill apps, but I suppose you use Greenify for that?
I am indeed rooted. GPS is always on as far as I know. Haven't really paid attention to it. Why do you ask? Does that consume a lot of power?
Amplifiction said:
Thanks for the pointers! I have Better Battery Stats, and will give the other two a go. Sounds like DS Battery Saver goes beyond 2Battery, which just manages data and wifi. It can also kill apps, but I suppose you use Greenify for that?
I am indeed rooted. GPS is always on as far as I know. Haven't really paid attention to it. Why do you ask? Does that consume a lot of power?
Click to expand...
Click to collapse
Well yeah of course GPS uses a lot, especially when you don't use it, it's just wasted energy so to speak.
Greenify lets apps go to sleep earlier/faster so that they can cause less wakelocks.
With Greenify and DS BS I don't need Stamina mode and many of us are even wondering if Stamina is working most of the times, these two apps I'm certain that they work.
Dsteppa said:
Well yeah of course GPS uses a lot, especially when you don't use it, it's just wasted energy so to speak.
Greenify lets apps go to sleep earlier/faster so that they can cause less wakelocks.
With Greenify and DS BS I don't need Stamina mode and many of us are even wondering if Stamina is working most of the times, these two apps I'm certain that they work.
Click to expand...
Click to collapse
Well, I've been keeping an eye on it for the past week, and I seem to be losing next to no charge when screen is off. My phone is in deep sleep over 75% of the time. (According to Better Battery Stats)
I do seem to be losing 1% charge for every 3 minutes or so while my screen is on. Is that normal? We're not talking gaming or anything demanding, just some browsing and messaging.
Amplifiction said:
Well, I've been keeping an eye on it for the past week, and I seem to be losing next to no charge when screen is off. My phone is in deep sleep over 75% of the time. (According to Better Battery Stats)
I do seem to be losing 1% charge for every 3 minutes or so while my screen is on. Is that normal? We're not talking gaming or anything heavy, just some browsing and messaging.
Click to expand...
Click to collapse
I think the best way to measure if it's correct or not, to for example put some movies on your phone and let them play constantly, see how long your phone can manage.
You should get at least 6 hours of on screen time using that method
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
nzzane said:
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
Click to expand...
Click to collapse
Good that it's too late, because it's incorrect. This suggestion dates back to the days of NiCd batteries which had "memory effect". Li-Ion batteries found in modern devices for at least the last several years and definitely since the beginning of Android don't have this effect, but have something else - when you drain the battery completely, you cause damage to the battery cells, and it can withstand only a few of these full-draining cycles before losing significant part of its charge capacity. This is why both laptops and phones have protective measures to turn off the phone completely before the battery reaches a dangerous drained state. And as the batteries go bad and their "low percentage" scale becomes unreliable (not able to sustain operation currents with low charge), these protective mechanisms can fire too late - which in turn can cause storage corruption to occur, if the power is lost gradually and not abruptly during operation.
To another poster that doesn't believe in faulty batteries - he better should. Batteries go bad with time and charge-discharge cycles, they're harmed by complete discharge, and can go bad in several other ways. However, I wouldn't expect a battery to start its life damaged - quality control of the manufacturer should prevent this.
My results for reference - I have ~2-3 hours a day SOT, 1-2 hours tethering, have several phone calls, messages and mails - and the phone is usually upwards of %50 at the evening. I have to run it through ~4 hours navigation to reduce it to sub-20% towards the end of the day, and actually see no reason why a smartphone should hold any longer - it's routinely recharged every night. The main problem for smartphones, to me, is not surviving till the end of the day.
nzzane said:
It's too late to say this, but after getting a new battery/phone you should always drain it fully and then fully charge the battery so that the battery has a proper charge (it saves a lot of battery capacity and battery life)
Sent from my D5833 using XDA Free mobile app
Click to expand...
Click to collapse
Thank you for sharing, but that advice is about as outdated and useless as changing your car's oil every 3000 miles. Batteries simply don't work that way anymore and some studies show that battery life is actually reduced when you perform full charge cycles instead of shorter recharges throughout the day.
Edit: looks like someone else best me to it :-/
Sent from my Xperia Z3 Compact
Jack_R1 said:
Good that it's too late, because it's incorrect. This suggestion dates back to the days of NiCd batteries which had "memory effect". Li-Ion batteries found in modern devices for at least the last several years and definitely since the beginning of Android don't have this effect, but have something else - when you drain the battery completely, you cause damage to the battery cells, and it can withstand only a few of these full-draining cycles before losing significant part of its charge capacity. This is why both laptops and phones have protective measures to turn off the phone completely before the battery reaches a dangerous drained state. And as the batteries go bad and their "low percentage" scale becomes unreliable (not able to sustain operation currents with low charge), these protective mechanisms can fire too late - which in turn can cause storage corruption to occur, if the power is lost gradually and not abruptly during operation.
To another poster that doesn't believe in faulty batteries - he better should. Batteries go bad with time and charge-discharge cycles, they're harmed by complete discharge, and can go bad in several other ways. However, I wouldn't expect a battery to start its life damaged - quality control of the manufacturer should prevent this.
Click to expand...
Click to collapse
PuffDaddy_d said:
Thank you for sharing, but that advice is about as outdated and useless as changing your car's oil every 3000 miles. Batteries simply don't work that way anymore and some studies show that battery life is actually reduced when you perform full charge cycles instead of shorter recharges throughout the day.
Click to expand...
Click to collapse
Actually sorry to break it to you, but you are wrong, Li-ION batteries do have a memory effect, since about 2013, researchers have found that they do have memory effect.
nzzane said:
Actually sorry to break it to you, but you are wrong, Li-ION batteries do have a memory effect, since about 2013, researchers have found that they do have memory effect.
Click to expand...
Click to collapse
Well, thanks for showing me something new. However, this is a very different effect from NiCD. While in NiCD this effect would prevent the battery from taking a full charge when repeatedly not discharged fully, in the research you've showed there are 2 very important points:
1. What matters is not the discharge, but rather a charge. Charging not fully is a way to trigger this effect. On the other hand, discharging partially (like in NiCD) doesn't trigger it. This point makes the info, while indeed interesting by itself, irrelevant to the current discussion, and keeps your previous suggestion wrong and bad for the battery.
2. If kept charging a bit longer - the battery would still charge fully, though it would take a different amount of time from the expected. For night time charging, when the phone is connected to the charger for several hours more than it's needed to actually regain the charge, I'd guess that most of the time it does the job of filling the battery properly even after an incomplete charging cycle.
[edit]
After reading it again - actually there is a third point that makes your suggestion even much worse than I thought it is:
This memory effect that you've pointed to is triggered by having an incomplete charge followed by a complete discharge. That means, incomplete charge with incomplete discharge don't cause it - a complete discharge is required. And when you receive a new phone, the battery isn't fully charged - so if someone goes by your suggestion:
nzzane said:
...after getting a new battery/phone you should always drain it fully and then fully charge the battery...
Click to expand...
Click to collapse
He would actually be triggering the memory effect you've linked to, on its bad side!
And just for reference, here is a recent article from 2015 that is far less technical, but does a great job of explaining battery behavior in practical terms that average people can understand:
http://www.digitaltrends.com/mobile/expert-advice-on-how-to-avoid-destroying-your-phones-battery/