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To the point that your phone shuts off? Is it bad for the battery?
I know overcharging it isn't because it drops a few percent and constantly charges back up to 100%...
Just wondering, thanks.
From what I understand,our li.ion. batts do not let you discharge all the way.( to save the life of the battery)
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What ^^^ said. Even when "drained" your battery will still put out 3.5 volts +/-.
Ah, gotcha. Wonder why AT&T says to power the battery to 100% and drain until notified of a low percentage... Hmn...
Sent from my SGH-I897 using XDA Premium App
That is basically calibrating your battery that you see so much about. The phone is designed to turn off when the battery voltage drops to a set level as it requires a minimum voltage to function. On the 100% charged side, sometimes the phone may think that the battery is fully charged when in reality it has not reached 4.2v.
Sent from my HTC Sensation Z710e using XDA Premium App
If I am trying to make sure my battery stats have the full minimum and maximum capacity I run down to 1% before plugging in.
If I think my battery stats are fine I don't worry about when to plug in.
xThe Enforcer said:
To the point that your phone shuts off? Is it bad for the battery?
I know overcharging it isn't because it drops a few percent and constantly charges back up to 100%...
Just wondering, thanks.
Click to expand...
Click to collapse
Basically, any device that uses a lithium battery has a device or process that monitors voltage and sets a minimum voltage that, when reached, turns off the device. This is required, otherwise lithium batteries would have a battery life that was only good for a few cycles. This applies to every application where lithium batteries are used. Phones, laptops, ipods, basically any modern portable device... or in my case, radio controlled model airplanes. The airplanes I fly use electric motors, and the voltage shut-off has two stages: one that cuts power to the motor but leaves power to the control surfaces so you can still land without crashing, and one that shuts off all power -you crash if you drain it this far. I know it isn't phone related, but it might help you understand the way it works. It's just the way it is. I've destroyed batteries in one cycle by running them below minimum voltage.
Thanks for all the info, ladies.
Sent from my SGH-I897 using XDA Premium App
keeping battery charge levels between 20-80% will allow your battery to maintain its maximum capacity.
drain the battery to 0% and you might find it dies just that little bit quicker the next day.
likewise, you know when charging the progress slows down around 90-100%? - that's the battery inefficiency around the max mark; this is damaging the battery too.
so, is there an app out there that will stop charging the battery when we get to 90%?
tasker can recognise the battery level but it has no action to stop the charging so presume ably its too low level. its also not available in the secure settings add on.
Do you have any links to back up these claims?
Using GT-I9000 my sent Tapatalk 2 from.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
Some kernels have these options. Battery life extender, where you can change the maximum charging level. I would guess though that by the time you're really affecting your battery life it will be time to upgrade anyway!
Some kernels have these options. Battery life extender, where you can change the maximum charging level. I would guess though that by the time you're really affecting your battery life it will be time to upgrade anyway!
Click to expand...
Click to collapse
Thanks. I'll look into that. I'd probably leave it at 90% or 95% but 80% is the value I heard. Personnally I find charge doesn't really slow down until 98%.
Mugen batteries can be upto $100 each so I think it's worth protecting the investment and Lithium batteries are the same technology in the brand new Galaxy3 or iPhone4s than it is in a GalaxyS1 etc. So that's my motive.
I experience this too! when my phone are only charged at 90 percent it last more longer !
Battery calibrate.
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vinogradska5a said:
Battery calibrate.
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Click to expand...
Click to collapse
Does calibration really needa 0-100. 100-0 then charge again from 0-100 (is the phone needs to ne off while charging?)
Sent from my HTC Sensation XE with Beats Audio Z715e using xda app-developers app
Here's a technical explanation for why this kind of app needs to exist (and why I was Googling this charge-limiting idea tonight to find this thread):
jago25_98 brushed the surface of it in an earlier post, but was blown off. He's dead-on. The top 90-100% of a battery's capacity is very slightly damaging to the battery, which likes to stay in the 3.7-4.0V range (about 30% to 90%). 4.0v to 4.1v is about 90 to 100%, and 4.1v to 4.2v is "you can cram in about 5% more at your own risk" territory. The charge lingers around the 100% mark to cram more power in without exceeding 4.2v. This is why devices are shipped half-charged, not full-charged: the batteries are manufactured at a stable mid-range voltage and charge level. Then, they're tested and returned to that half-charged state for storage (!) and shipping. They like to stay in the middle, not the extreme ends (and definitely not fully discharged).
Charge algorithms are designed solely with capacity in mind, because not much care is put into "how long" something will last. They'd much rather abuse the battery and have the battery (or the device) replaced, than to put a larger battery in to make up for lost capacity by charging only to 80%.
For some of us, we understand that, and we'd like to limit our battery charge so the life of the battery (the capacity it will hold over time) will stand up to the test of time. If treated right, these batteries could last over 10 years. Charging to 100% each day and staying there all night (most of the time, it charges within an hour, leaving it sitting about a quarter of its life at a full charge) is pretty destructive, compared to using an app that caps it at 80% each night, saving the full cycles for monthly battery-meter refreshes.
If it can be done, I'd like to know... I might just dust off my SDK and crack open a "how-to" book to get started. About time I had a good app idea...
Here's some recent media that's brought this issue back to be bumped: http://gizmodo.com/you-should-try-to-keep-it-north-of-50-percent-as-much-619313207
Is that extender in NStools?
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If I remember correctly Mackay kernel - at least up to 4.3 Mackay - has allowed BLX. I think Semaphore allowed this as well in the manager app.
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Soryuu said:
If I remember correctly Mackay kernel - at least up to 4.3 Mackay - has allowed BLX. I think Semaphore allowed this as well in the manager app.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Yes, I'm using Mackay Kernel+Rom ( 4.4.2 KK ) and you can find the BLX (battery life extender) in Mackay Settings tab.
Sorry for digging up this long submerged thread.
I'm quite interested in the idea of getting my phone to charge between 40-80% while I plug in my phone overnight. I wish to maximise the longevity of the battery on my phone. I'm thinking about using the app "Tasker" together with a Wifi controlled power switch. Has anyone done that?
(PS. I don't use a Galaxy S I9000 phone. Just searched and found this randomly)
FalconFour said:
Here's a technical explanation for why this kind of app needs to exist (and why I was Googling this charge-limiting idea tonight to find this thread):
jago25_98 brushed the surface of it in an earlier post, but was blown off. He's dead-on. The top 90-100% of a battery's capacity is very slightly damaging to the battery, which likes to stay in the 3.7-4.0V range (about 30% to 90%). 4.0v to 4.1v is about 90 to 100%, and 4.1v to 4.2v is "you can cram in about 5% more at your own risk" territory. The charge lingers around the 100% mark to cram more power in without exceeding 4.2v. This is why devices are shipped half-charged, not full-charged: the batteries are manufactured at a stable mid-range voltage and charge level. Then, they're tested and returned to that half-charged state for storage (!) and shipping. They like to stay in the middle, not the extreme ends (and definitely not fully discharged).
Charge algorithms are designed solely with capacity in mind, because not much care is put into "how long" something will last. They'd much rather abuse the battery and have the battery (or the device) replaced, than to put a larger battery in to make up for lost capacity by charging only to 80%.
For some of us, we understand that, and we'd like to limit our battery charge so the life of the battery (the capacity it will hold over time) will stand up to the test of time. If treated right, these batteries could last over 10 years. Charging to 100% each day and staying there all night (most of the time, it charges within an hour, leaving it sitting about a quarter of its life at a full charge) is pretty destructive, compared to using an app that caps it at 80% each night, saving the full cycles for monthly battery-meter refreshes.
If it can be done, I'd like to know... I might just dust off my SDK and crack open a "how-to" book to get started. About time I had a good app idea...
Here's some recent media that's brought this issue back to be bumped: http://gizmodo.com/you-should-try-to-keep-it-north-of-50-percent-as-much-619313207
Click to expand...
Click to collapse
I am thinking, if Android app can't limit battery charging level, at least there should be an app that shows some sort of notifications when charging has reached a certain level set by users.
There is an app for it. Battery Charge Limit.
jago25_98 said:
keeping battery charge levels between 20-80% will allow your battery to maintain its maximum capacity.
drain the battery to 0% and you might find it dies just that little bit quicker the next day.
likewise, you know when charging the progress slows down around 90-100%? - that's the battery inefficiency around the max mark; this is damaging the battery too.
so, is there an app out there that will stop charging the battery when we get to 90%?
tasker can recognise the battery level but it has no action to stop the charging so presume ably its too low level. its also not available in the secure settings add on.
Click to expand...
Click to collapse
You can get this app https://forum.xda-developers.com/android/apps-games/root-battery-charge-limit-t3557002 here. It also has tasker integration
Okay I have a nexus S and the single most annoying thing about it is the time it takes to charge. It takes 2.5 hours to charge a 1500mah battery whereas this xperia arc S with the same battery capacity charges completely in less than an hour using the exact same charger on both phones. So obviously the nexus S has some cost cutting that it charges so slowly and yet it was never mentioned in any of the reviews.
Now at first I was ok with it but I got to use the arc S for a few days. Its like it changes everything when the phone charges in one third the time, you could care less if you get 30 min less screen on time or whatever. I just go charge the phone while going for a shower and bam its fully charged when I come back.
So upon investigation it seems like an issue with samsung phones. The galaxy S, galaxy S2 and galaxy nexus all take ridiculous amount of time to charge. So why is this never reported? Higher screen on time is no good if the charging time is so bad. My nexus S can go days without a full charge and really the only way to do it is over night.
Anyways this is LG nexus now so I was hopeful this problem wont be there. I checked out a friends optimus 2X and I was happy to see that just like the xperia it also charges in under an hour. However anandtech review says it takes 3 hours to charge and so does another user in the Q&A forum. So why on earth is not anyone complaining about it? Everyone is after the screen on time but you realize this is an even bigger issue?
And btw the iphone charges very quickly as well. And yes I realise that the nexus 4 has a 2100mah battery but it really doesnt justify the time it takes. This is almost a deal breaker for me. *sobs*
When I got my S2, I was disappointed with the charging time. But many custom kernals support fast charging by increasing the voltage level going to the charge circuit. With a tweak, my phone charged up in about 90 minutes.
But over time, you learn that the higher voltage has a detrimental effect on the total charge the battery will accept. In other words, when charging at a slower pace (lower voltage) the battery will actually absorb a higher density charge - making your battery last longer. After discovering this, I turned down the charge voltage on my S2 in favor of getting better battery life.
So I would avoid comparing the charge times with other phones. They may charge faster, but that's done by increasing the charge voltage, thus reducing battery capacity.
I have no reason to believe the increased voltage alters the total life of the battery, it just seems to affect the amount of energy the battery will absorb on a single charge.
tl;dr; The faster the battery charges, the shorter the battery life. I learned that from Upstairs Hollywood Battery School.
Seriously? Morning about charging time? GTFO!
Sent from my EndeavorU using xda premium
This isn't really a problem, it's just the way it is with all phones that use a large battery (ie. virtually all high end smartphones). The chargers are all 1A, so with a huge battery it will take ages to charge.
Efficiency is the bigger issue. The iPhone 4S/5 are pretty much the only phones to date that I've been able to charge at a decent pace off my computer's USB ports. I definitely need to buy more chargers and cables for my Nexus 4 but that's no big deal.
Dr Zoidberg said:
When I got my S2, I was disappointed with the charging time. But many custom kernals support fast charging by increasing the voltage level going to the charge circuit. With a tweak, my phone charged up in about 90 minutes.
But over time, you learn that the higher voltage has a detrimental effect on the total charge the battery will accept. In other words, when charging at a slower pace (lower voltage) the battery will actually absorb a higher density charge - making your battery last longer. After discovering this, I turned down the charge voltage on my S2 in favor of getting better battery life.
So I would avoid comparing the charge times with other phones. They may charge faster, but that's done by increasing the charge voltage, thus reducing battery capacity.
I have no reason to believe the increased voltage afters the total life of the battery, it just seems to affect the amount of energy the battery will absorb on a single charge.
Click to expand...
Click to collapse
Its not a big deal as I said I have used an xperia arc S and I was satisfied with battery life, I cant imagine the xperia would have had much better battery life out of its 1500mah unit even if it was slow charging.
I mean unless we can observe what happens to the battery life of a fast charging phone by slowing its speed, we cant really conclude this since after all it was a "mod" applied on the S2.
twistedh said:
Seriously? Morning about charging time? GTFO!
Sent from my EndeavorU using xda premium
Click to expand...
Click to collapse
Nobody asked you to post in the thread, charging time is a big deal its silly to think otherwise.
lambomanx1 said:
This isn't really a problem, it's just the way it is with all phones that use a large battery (ie. virtually all high end smartphones). The chargers are all 1A, so with a huge battery it will take ages to charge.
Efficiency is the bigger issue. The iPhone 4S/5 are pretty much the only phones to date that I've been able to charge at a decent pace off my computer's USB ports. I definitely need to buy more chargers and cables for my Nexus 4 but that's no big deal.
Click to expand...
Click to collapse
This isnt true the HTC one X and sony xperia S charge very quickly and they have relatively big batteries.
Seriously, there's a big difference between a 1500mah battery and a 2100mah. Being that this is a lithium polymer battery it should charge a little faster. Also, like the above poster stated, slower charge is a higher density charge and better for battery longevity. I think if Samsung wanted faster charging they would have it. There is no physical barrier.
You guys know the faster your battery charges, the shorter the lifespan of the battery?
Head over to battery university
Sent from my Nexus 7 using xda app-developers app
Jayrod1980 said:
Seriously, there's a big difference between a 1500mah battery and a 2100mah. Being that this is a lithium polymer battery it should charge a little faster. Also, like the above poster stated, slower charge is a higher density charge and better for battery longevity. I think if Samsung wanted faster charging they would have it. There is no physical barrier.
Click to expand...
Click to collapse
Its like 40% difference?
And isnt the nexus 4 hmm not having the best battery life despite such slow charging so I dont really feel it makes a big difference.
And btw sometimes it is a hardware limitation, nobody has been able to charge a nexus S faster not with kernels or other chargers.
tylerwatt12 said:
You guys know the faster your battery charges, the shorter the lifespan of the battery?
Head over to battery university
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yes, I know that. See post #2 in this thread.
I will edit my post to add a tl;dr
tylerwatt12 said:
You guys know the faster your battery charges, the shorter the lifespan of the battery?
Head over to battery university
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
It doesnt seem like a big deal, the iphone has had fast charging since the first one and its battery lasts just fine. Ofcourse one day you will have to change it but why suffer for a year just because of it?
Another one of these threads... Oh brother.
sent via xda premium with nexus 7
I always wondered why the iPhone charged so much faster than any android phone I owned
I'm saying there's no technological barrier to the Nexus S charging faster. Samsung just made it that way. Could also be because it uses a Lithium Ion battery and not a lithium polymer battery. Depending the technology, li-po batteries can charge much faster safely because they don't have the same thermal limits as lithium ion and have much less chance of exploding or catching fire. Apple some years back boasted that they had new battery tech that would allow their batteries to charge faster. If you do some internet reading on lithium polymer batteries, there are some that have characteristics to do this. As far as I know, the iphone was made after they acquired this technology and have been using it in their mac books for years, as well as the iphone.
To me it's not a huge deal, but it is less convenient than if it were able to charge faster.
Jayrod1980 said:
I'm saying there's no technological barrier to the Nexus S charging faster. Samsung just made it that way. Could also be because it uses a Lithium Ion battery and not a lithium polymer battery. Depending the technology, li-po batteries can charge much faster safely because they don't have the same thermal limits as lithium ion and have much less chance of exploding or catching fire. Apple some years back boasted that they had new battery tech that would allow their batteries to charge faster. If you do some internet reading on lithium polymer batteries, there are some that have characteristics to do this. As far as I know, the iphone was made after they acquired this technology and have been using it in their mac books for years, as well as the iphone.
To me it's not a huge deal, but it is less convenient than if it were able to charge faster.
Click to expand...
Click to collapse
Well I am fine with the nexus S its something I have come to live with however I dont want this thing to be the case in my next phone.
Microsoft boasted how quickly the surface RT charges due to some new technology. Really it does matter, I suppose good for those who dont really care about it.
ctowne said:
I always wondered why the iPhone charged so much faster than any android phone I owned
Click to expand...
Click to collapse
I have tested 2 android phones that charge just as fast.
Xperia arc S and LG optimus 2X.
Takes me like 2hrs to fully charge my Nexus 4.
Sent from my Nexus 4 using Tapatalk 2
Gambler_3 said:
I have tested 2 android phones that charge just as fast.
Xperia arc S and LG optimus 2X.
Click to expand...
Click to collapse
That's weird because I had a G2x and that charged slower than the iPhone I had at the same time
There is clearly a link between the temperature of the battery and the charging current in the thermal management of the device :
bat_temp(C) cpu(MHz) gpu(MHz) LCD index of predefined charging current
36 1512 400 248(400nit) 0 (900mA)
37 1296 325 228(360nit) 0 (900mA)
38 1296 325 208(325nit) 0 (900mA)
39 1188 200 195(300nit) 1 (700mA)
41 1188 200 195(300nit) 1 (700mA)
42 1188 200 195(300nit) 2 (600mA)
45 1188 200 195(300nit) 3 (400mA)
Hello, I recently purchased the 3500mAh 3.7V extended battery for my dinc. Can someone tell me what voltage I should charge it up to? I am not seeing amazing results, so I believe that my battery is not completely calibrated. I did run it through multiple complete uses (fully charged, to drain, and repeat) so I don't know what the problem could be. Thanks.
Sent from my ADR6300 using xda app-developers app
What were you expecting for battery life? Depending on the brand it may not be a real 3500mAh battery. One full discharge and recharge should be enough to calibrate the software though Li-Ion batteries have no memory in them. Check this out. It mentions extending the life on the battery but is still interesting stuff.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries.
In fact that whole site has a lot of info on batteries.
Hey tiny. Well, from what I was reading about this battery, users got two full days with heavy usage (they described heavy usage to be streaming music, surfing the Web, testing, playing games, etc.) but, this is what I get, and it's the best I got (3 hours display,half an hour talk time). I even went down to gb to see if it would be good, but I didn't see much of a difference. And I did look at battery university a bit, but I didn't delve into the material. I'll check that link out.
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ra9b said:
Hey tiny. Well, from what I was reading about this battery, users got two full days with heavy usage (they described heavy usage to be streaming music, surfing the Web, testing, playing games, etc.) but, this is what I get, and it's the best I got (3 hours display,half an hour talk time). I even went down to gb to see if it would be good, but I didn't see much of a difference. And I did look at battery university a bit, but I didn't delve into the material. I'll check that link out.
Sent from my ADR6300 using xda app-developers app
Click to expand...
Click to collapse
Wow, that's pretty abysmal for a 3500mAh battery, especially in a lower consuming device like the incredible. How does that compare to your stock battery? It should be at least 70-80% better assuming that it's not really a 3500mAh battery. It may be a false claim that it's 3500mAh from the makers. I think 4 hours screen time on 3500mAh should be more reasonable for about 35 hours total time. I usually get about 1-3 hours screen time over a period of 10-30 hours total on my Galaxy Nexus. On my Inc on CM7 with stock battery my usage allowed me to go up to 30 hours, usually 20 on a charge with 30% left I think but it's been a while and I don't know the screen on time. It might have been about 2 hours.
tiny4579 said:
Wow, that's pretty abysmal for a 3500mAh battery, especially in a lower consuming device like the incredible. How does that compare to your stock battery? It should be at least 70-80% better assuming that it's not really a 3500mAh battery. It may be a false claim that it's 3500mAh from the makers. I think 4 hours screen time on 3500mAh should be more reasonable for about 35 hours total time. I usually get about 1-3 hours screen time over a period of 10-30 hours total on my Galaxy Nexus. On my Inc on CM7 with stock battery my usage allowed me to go up to 30 hours, usually 20 on a charge with 30% left I think but it's been a while and I don't know the screen on time. It might have been about 2 hours.
Click to expand...
Click to collapse
Yeah, that's why I am worried. And actually, my stock battery usually have me like a day with good use. When you put it in perspective, my 1300mAh battery gives me about 67% of the battery life that I get from a 3500 mAh battery. Is there any way I can measure the power of the battery? I take physics, so even finding a way to calculate the current, voltage, and/or resistance of the battery would help.
Sent from my ADR6300 using xda app-developers app
Check batteryuniversity.com, they have a link for calculating the actual capacity, or if you know your model which you should you can Google for actual capacity. Someone probably has posted capacities of a battery.
just going to add that in my experience(I have 3 Dincs), just a 3500 mah battery isn;t going to give you amazing results on it;s own. power management on the Dinc requires some attention. i find that charging the battery in the phone doesn;t necessarily yield a full charge, especially if you are charging it while the OS is loaded(topping it off). so my strategy has been to run my batteries down to empty,replace with a fresh one and charge them in an external battery charger-but not just any charger but a RAVpower universal charger. I have an "official" Seido charger and that doesn;t charge my batteries fully either even though it thinks it has by showing a green LED. I know some people will say that batteries shouldn;t be treated like this and that they don;t suffer from memory effect so you are free to not do what I am doing.
the biggest things that use up the battery is the 3G radio and the Display so of course if you are just using your phone to do stuff non stop of course you'd be lucky to get 4-6 hours of usage. Even if you have your phone doing useful stuff over wifi like checking for email in the background, it does consume battery. but with my phone in Airplane mode(like overseas where I would have no 3G or Wifi), I;ve gotten a couple of days of Standby time.
other stuff I have done is remove any apks in memory that might be consuming cpu cycles and memory. less is more on a limited platform like the Dinc. biggest cpu hogs on my phone believe it or not is Facebook and Amazon App Store(my guess is that it;s periodically checking my licensing for some apps that I got from them). it;s not uncommon for me to boot up the phone and for the battery to go from 100% to 90% in 5 minutes as the phone is initializing and doing whatever it;s doing. then slowly deplete from from 90% to 80% in 8 hours or so.
tekweezle said:
it;s not uncommon for me to boot up the phone and for the battery to go from 100% to 90% in 5 minutes as the phone is initializing and doing whatever it;s doing. then slowly deplete from from 90% to 80% in 8 hours or so.
Click to expand...
Click to collapse
Your battery gauge is lying to you (and it's not such a bad thing)
So, I looked through all of battery university, but i still have 1 unanswered question. The website states that most Li-ion batteries should be charged to a mximum voltage of 4.20 V. However, does this apply to all batteries? I mean, my extended battery is a 3.7V battery. Was the htc dinc original battery a 3.7 v battery? If the voltages are different, then wouldn't the 3.7V battery need to be charged to a higher voltage so that the potential difference would equal that of the original battery and thus store the same charge? (theoretically)
ra9b said:
So, I looked through all of battery university, but i still have 1 unanswered question. The website states that most Li-ion batteries should be charged to a mximum voltage of 4.20 V. However, does this apply to all batteries? I mean, my extended battery is a 3.7V battery. Was the htc dinc original battery a 3.7 v battery? If the voltages are different, then wouldn't the 3.7V battery need to be charged to a higher voltage so that the potential difference would equal that of the original battery and thus store the same charge? (theoretically)
Click to expand...
Click to collapse
You could check wake lock detector on the play store to see what apps may be causing a partial wake lock... I know gmail and uccw cam cause a decent wake lock time
Sent from my Nexus 7 using Tapatalk HD
zachf714 said:
You could check wake lock detector on the play store to see what apps may be causing a partial wake lock... I know gmail and uccw cam cause a decent wake lock time
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
I did check that and I didny find anything very abnormal, since I already greenified those apps.
Sent from my Droid Incredible using xda app-developers app
So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
MadDogMaddux said:
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.
Thanks! Can you explain why using mr PC to charge is better?
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MadDogMaddux said:
Thanks! Can you explain why using mr PC to charge is better?
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Click to expand...
Click to collapse
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
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customhdrider said:
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
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Click to expand...
Click to collapse
Gottit. Thanks!
No problem,glad I could shed some light on the subject
Sent from my HTCONE using xda premium
MadDogMaddux said:
So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
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As was previously noted, what you're doing is actually the worst possible thing you can do to a lithium ion battery. In general, best practice is to keep your battery somewhere between 10%-95% charge whenever possible. Once a month, you should "cycle" your battery under 10% (but not fully drained) to keep everything in peak condition. If you're ever not going to use the phone for any length of time, best practice is to drain to 40% and store in a cool, dark area.
When you first get a new device, you do want to condition it by doing three to five (varies on the device) full charge/discharge cycles, but after that, once a month with a conditioning cycle will take care of things for you. And again, as was previously noted, it's not a great idea to leave your phone charging overnight because you can't always depend on the battery controller chip.
These newer cells are all rated to relatively high cycle lifetimes, so I wouldn't worry overmuch. At that point, capacity is supposed to start degrading, although naturally it's going to happen a bit earlier for any number of reasons. I'd be much more worried about avoiding heat though than overcharge.
I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?
sauprankul said:
I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?
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It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
The 40% rule applies to any battery, and they'll all discharge over time anyway (connected or no). If you shut your phone off, everything powers down except (if memory serves) what's necessary to run the internal clock. The impact that has should be pretty minimal (unless you're trying to bury your One for a thousand years, in which case...can't help you there).
Rirere said:
It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
(unless you're trying to bury your One for a thousand years, in which case...can't help you there).
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Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.
sauprankul said:
Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.
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I don't know that I bought any, but I have a few lying around from yesteryear's gadgetry.
And at that point, why not launch it into space instead, a la HTC Nexus One?
So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
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sauprankul said:
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.
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MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.
MadDogMaddux said:
So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
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Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Admiral Sir Manley Power said:
MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.
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Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.
Rirere said:
Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.
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That is certainly a good point as well. No need to play on the edge of the cliffs. lol
You see my point tho
About safety margins