[Q] Battery dies suddenly - Nexus S Q&A, Help & Troubleshooting

My i9020T was working fine using the stock 4.1 firmware. I started playing around with a few custom ROMs (all designed for my phone) with varying results. I eventually got to a point where every ROM I tried resulted in a phone that restarted suddenly several times a day and drained the battery quickly. I thought maybe that restoring apps using Titanium when going back and forth between 4.1 and 4.2 based ROMs might be the problem, so I wiped everything and did a system reset, then installed CM 10.1 and the Gapps and a handful of crucial apps that I downloaded fresh from the Play Store. The random resets seem to have disappeared but I am still having strange battery life issues. The battery seems to discharge at about the same rate as with the stock ROM until it gets to around 40%, then suddenly dies with no warning. It can only be restarted by plugging it into the charger, at which point it shows a 0% charge. It seems to charge back up to the 40%-50% mark extremely quickly, then gets to full charge at normal speed. I tried switching to my seldom-used backup battery, with the same results. I also tried reinstalling CM 10.1 and Gapps, along with the Marmite kernel, and got the same results but with a slightly longer period of time before it dies. Anyone have any ideas?

This happened to me once, not like your case, but I fix it with a app witch one I don't remember the name. What I know is that app just delete the battery.stat soo android generate a new one. Try to search on play store.

Buscador said:
My i9020T was working fine using the stock 4.1 firmware. I started playing around with a few custom ROMs (all designed for my phone) with varying results. I eventually got to a point where every ROM I tried resulted in a phone that restarted suddenly several times a day and drained the battery quickly. I thought maybe that restoring apps using Titanium when going back and forth between 4.1 and 4.2 based ROMs might be the problem, so I wiped everything and did a system reset, then installed CM 10.1 and the Gapps and a handful of crucial apps that I downloaded fresh from the Play Store. The random resets seem to have disappeared but I am still having strange battery life issues. The battery seems to discharge at about the same rate as with the stock ROM until it gets to around 40%, then suddenly dies with no warning. It can only be restarted by plugging it into the charger, at which point it shows a 0% charge. It seems to charge back up to the 40%-50% mark extremely quickly, then gets to full charge at normal speed. I tried switching to my seldom-used backup battery, with the same results. I also tried reinstalling CM 10.1 and Gapps, along with the Marmite kernel, and got the same results but with a slightly longer period of time before it dies. Anyone have any ideas?
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Click to collapse
samcortez said:
This happened to me once, not like your case, but I fix it with a app witch one I don't remember the name. What I know is that app just delete the battery.stat soo android generate a new one. Try to search on play store.
Click to expand...
Click to collapse
App name is battery calibration and here is the link for it https://play.google.com/store/apps/details?id=com.nema.batterycalibration
Hope it works :thumbup: good luck
Sent from my Nexus S using xda app-developers app

Thanks for the replies. The Battery Calibration app seemed like it had pretty much done the job the first day after I ran it--the battery lasted the whole day and made it down to about 10% before it suddenly died. However, on the second day (today) it went right back to the old behavior, dying in mid-afternoon shortly after the battery charge dropped below 40%. Any other ideas?

Related

Battery draining in sudden bursts?

I've recently started having this problem. I charged my wizard overnight, saw the battery was 100%, then as soon as i removed the charger, it drops to around 80%. If i follow this with a soft reset, it drops to 50%. During normal usage the drainage isn't so sudden, but it is still a lot faster than usual. For e.g. a 20 min video would drain 30% of the battery.
My extended rom is clear, I first installed the 2.26 tmob rom, then wrcx1, so I dont think that should be an issue. I've installed the power saving cabs as well. What else could be the problem? I'd really hate to have to switch to another rom just to sort this out...
Forgot to add, this is a recent problem. I used to get excellent battery life, this has just suddenly started happening. I haven't changed my charger or battery.
which BS are you using?
I was using the latest BS release (0263 i think) but have removed it from my today screen and still the problem is persisting...
Battery... that's what driving me crazy now! With WM5, I can use my device almost 2,5 days with lots call/sms and solitaire. Tried 3 WM6 version and couldnot save the O2 life last more than 3 hours (uncontinuosly). Please any one help to solve this.... (
Sounds like either your battery is screwed (they DO go bad after a year or two) OR you've got one seriously ****ed up ROM.
By the way, BatterySpace is known to do this if you use the dynamic overclocking. Somehow something in the ROM or Registry gets trashed, and then the system will peg the CPU at 100%.
This will WASTE the battery like nobody's business! Once this happens the only fix is a HARD RESET - I've not figured out what's getting scrambled, but whatever it is, a reboot doesn't fix it.
Shut off the dynamic overclocking if you're using it and see if the problem goes away.
I just had the same erratic behavior from my battery, it was over a year old. It would charge to 100%, but when off the charger strength would read random levels and drain really fast. I could kill the battery in about 30 minutes of browsing web pages.
A new battery solved it.
Genesis3 said:
Sounds like either your battery is screwed (they DO go bad after a year or two) OR you've got one seriously ****ed up ROM.
By the way, BatterySpace is known to do this if you use the dynamic overclocking. Somehow something in the ROM or Registry gets trashed, and then the system will peg the CPU at 100%.
This will WASTE the battery like nobody's business! Once this happens the only fix is a HARD RESET - I've not figured out what's getting scrambled, but whatever it is, a reboot doesn't fix it.
Shut off the dynamic overclocking if you're using it and see if the problem goes away.
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Click to collapse
OK, thanks!
Now I'm thinking about downgrade to WM5 to check wherther battery died or not, before buy a new one.
I have the same issue on the g3 wizard connected thru tmobile us running the bd3 rom. I have had excellent battery life in the past but in the past 3 days or so the battery status is just inaccurate. The main prob is that when you go connect to the internet 5 min later the device restarts and sometimes it just keeps restarting in a loop. Then sometimes it restarts but battery is at critical, when before it was at 80%.
But i noticed when it gets stuck in the boot loop, just stick it on the charger for a sec and it will start back up fine, but then die after a couple phone calls or so.
I have also cleared the rom thinking it was some battery drain issue that usually happens when you don't flash the original rom before you flash a cooked one. I installed the tmobile original one and then flashed "boring rom for tmobile". That rom works quite well. But the battery is still draining.
I also changed the radio rom from the 2.69 and now went to the 02.25.11 but still the same issue.
I didn't try running straight wm5 and see if it did it their, but the previous poster is trying it so ill see if that worked for him or not.
The next step is to try a new battery but this battery is only like a year old
Believe me when I tell 'ya that Lithium Ion batteries, when they die, do so exactly like this.
Try a new battery.
daishi17 said:
I have the same issue on the g3 wizard connected thru tmobile us running the bd3 rom. I have had excellent battery life in the past but in the past 3 days or so the battery status is just inaccurate. The main prob is that when you go connect to the internet 5 min later the device restarts and sometimes it just keeps restarting in a loop. Then sometimes it restarts but battery is at critical, when before it was at 80%.
But i noticed when it gets stuck in the boot loop, just stick it on the charger for a sec and it will start back up fine, but then die after a couple phone calls or so.
I have also cleared the rom thinking it was some battery drain issue that usually happens when you don't flash the original rom before you flash a cooked one. I installed the tmobile original one and then flashed "boring rom for tmobile". That rom works quite well. But the battery is still draining.
I also changed the radio rom from the 2.69 and now went to the 02.25.11 but still the same issue.
I didn't try running straight wm5 and see if it did it their, but the previous poster is trying it so ill see if that worked for him or not.
The next step is to try a new battery but this battery is only like a year old
Click to expand...
Click to collapse
mine is doing the same thing..
if i start any aplication that requests more procesing, the device keeps rebooting, even if the battery was indicating 100% when i started using it
if i plug the charger when he is rebooting, he comes back to life 80-100% charged..
if i do not use it, and leave him on stand by, the battery lasts for like 2 days without any issues.
Draining in Sudden Bursts! Sounds like it feels good.
well i guess i will just get a new battery and hope that solves the problem since I have tried everything besides just using regular wm5, and someone posted that this is what lithium ion batteries usually do, so I'll give it a shot and report my findings after christmas, lol I hope I get a mda battery for christmas
anyone bought a new battery?
did it worked?
i´m still waiting for mine to arrive
I bought a new battery, but i cant say yet whether its working or not. It seems to work fine at times, and gives the same problem at other times. Not sure what acould be wrong....
Are you using TNT5 ROM? I've flashed two days ago this ROM to give WM6 a second go and my battery vanished like smoke... the battery that used to last for about 4 days, was gone in only half a day :\ I'm back to my ROM!
I'm using TNT5 for a few months now. All of a sudden i had batteryproblems. Tried everything but solved the problem with a fresh battery. Only 9 dollars on Ebay....
And now the phone is running smoothly again (lasts about 2 days)...
still waiting for mines to come should come wednesday, its getting worst and worst i used to be able to use it for at least an hour now only for about 15 min off the charger, when it says its at a 100%
I'm having a different kind of problem, except for the burst that I get after taking off power or after a soft reset, my battery life is exceptional. My last charge lasted about 7 hrs (including ebooks, mp3s, sms, and some phone calls).
I flashed XDA Mobile 6 Release 5 RC1 with .NET CF 3.5! recharging full battery. After flashing It showed low battery warning and when i restarted it, it showed full battery. And one hour later it swiched off. Now i flashed another rom .No problem yet.

heavy battery drain and mobile heating up since last evening

Hi,
I was running MIUIXperience V5 and everything was fine till got a random reboot last evening and after that, battery started draining very fast doing nothing 20-25% in an hour. Mobile is heating up a lot now back side near camera and charging also became very slow (30-40% in 4 hours). Tried full wipe and reinstalling the ROM but still the same issue, wiped battery stats as well.
I was getting 25-35 hrs before this so doesn't look like a fault in battery. Any help will be highly appreciated. Thanks.
Seems a hardware issue to me. Maybe try to swamp battery's and see if the current one you're using is busted.
DeuXGod said:
Seems a hardware issue to me. Maybe try to swamp battery's and see if the current one you're using is busted.
Click to expand...
Click to collapse
Thanks for your help but I still doubt the battery as when charging in powered off, it charge well & quickly as before
Can you try another ROM? If it would work ok with another ROM that would put the hardware suspicion aside. If it still keeps the same with a different ROM, then it's most definitively a hardware issue.
DeuXGod said:
Can you try another ROM? If it would work ok with another ROM that would put the hardware suspicion aside. If it still keeps the same with a different ROM, then it's most definitively a hardware issue.
Click to expand...
Click to collapse
I have tried another ROM and same ROM with clean install, they seem good as before the issue but as soon as I enable root permissions, battery started to drain fast again (35% in an hour)
got a similar issue with mine, usually my battery stills 20hrs, and that's ok for my usage, I'm running brainmaster cm9, but same with CDA 2.0.0, randomly the phone, in some case after a reboot or disconnecting power cable, start to drain battery and become hot, in battery usage stats AndroidOS is the main issue and android.process.acore the resource that never sleep,
I think this can came from a bad deep idle management on some rom-kernels combo or ics 4.0.4 issue, but I nobody to say this...
stremax said:
got a similar issue with mine, usually my battery stills 20hrs, and that's ok for my usage, I'm running brainmaster cm9, but same with CDA 2.0.0, randomly the phone, in some case after a reboot or disconnecting power cable, start to drain battery and become hot, in battery usage stats AndroidOS is the main issue and android.process.acore the resource that never sleep,
I think this can came from a bad deep idle management on some rom-kernels combo or ics 4.0.4 issue, but I nobody to say this...
Click to expand...
Click to collapse
I tried different MIUI Roms but issue remained same. Then I installed Androxide after full wipe and now seems to be working fine (72% after 7hrs). Still can't figure out what is the issue that different variants of MIUI Roms after clean install and battery starts to discharge heavily.
Tried going back to MIUI but probelm came again and after restoring to Androxide, again working fine
moodi_ali said:
I tried different MIUI Roms but issue remained same. Then I installed Androxide after full wipe and now seems to be working fine (72% after 7hrs). Still can't figure out what is the issue that different variants of MIUI Roms after clean install and battery starts to discharge heavily.
Tried going back to MIUI but probelm came again and after restoring to Androxide, again working fine
Click to expand...
Click to collapse
I suggest to install an app like Quick System Info anche see id there is a process running high on CPU usage: there you can see its log and try to understand what's happening...
BTW, I started to have some massive drain with the last CM9 nightlies: it was the Phone app that sucked all the juice in a few hours.
I wiped & reflashed dozen of times, checking if the drain was caused by some app, until I used Quick System Info and saw from the logs that the problem was the new 2g/3g toggle widget: I had set it to "3g preferred" but this caused a loop. Setting it to "2g only"/"3g only" fixed the issue.
First, MIUI is a Chinese ROM.
Second, Chinese things are always known for bad quality.
So MIUI is bad
Really, dude? Maybe you should take the tin foil hat off.

Battery Drains After Crash

My phone has been acting really weird the last few day. I had [ROM][MTD]CyanogenMod 9.0.0-rc2 UNOFFICIAL by TeamAcid[R5][Jul-20-2012 installed on my phone. But it would crash all of the time. Afterwards when the phone rebooted the battery would go from 100% to 9%. If I dont boot the phone back up right after a crash and wait a little while. When I boot it up the battery will be around 40-45%. I used [Heimdall][One-Click] The T959V Heimdall One-Click Collection [05/20/2012] earlier today, Just to see if I continued to have the battery problem. I only had the phone crash once while on the stock rom, and the battery did drain about 50% but I also started having a problem where I would lose my data connection all together. Rebooting the phone brought it back, only to lose it again after around 30min to 1hr. It has not crashed for about 3hrs now and I have not lost my data connection either. Anyone have any ideas what might be going on here? I tried deleting the battery stats with the battery at 100% before going back to stock but that did not seem to help at all. I downloaded a batter calibrator from the market place and tried that as well. Used it when the battery was at 100%. None of this has worked. Now that im back on the stock rom its only crashed once, but the battery did still drain. Any ideas? I would really like to go back to CyanogenMod 9 but its not worth it if the phone continuously crashes and kills the battery. Any help would be greatly appreciated.
Try Gremlins Remover.
sent from me
So you don't waste any more time, "battery calibration" is snake oil, lithium ion batteries don't need "conditioning" (and actually suffer from both high temperatures and deep discharge cycles), but the moon is made of cheese. Ok, at least the first two are true.
As you're having problems with one of the most stable and reliable GB ROMs for this phone, I suspect that you may have one or more of:
Bad battery
Bad user-land applications
Corrupt application data
Corrupt media data (for example, music on your microSD)
Bad phone
Bad luck
A "start over" approach with a complete clean-out either using the above-mentioned one-click, or doing the equivalent by hand (wiping all partitions, flashing stock, starting with a fresh microSD), then seeing how the phone/battery behaves without any apps would be the path I would take. If it passed that, I'd slowly start adding back apps, and only restoring data/preferences where you really need them.
Im doing the gremlin remover right now. I will let you guys know how to goes. Thanks for the advise, this has been driving me crazy.
Tried the gremlin remover last night and played with my phone today. Its still crashing and then when I boot it up back the battery is pretty much dead... I think i have a bad battery. Never had these problems with the phone before. Thanks for the help guys. I guess Ill get a new battery and see if that fixes the problem.
I have this EXACT same problem. I'm on AOKP and the battery with go from having a decent charge and die. Then if I take the batt out, hold the power button for 15 secs and let the phone sit with no batt for 10 minutes or so, the phone will go back to around 50% batt life. After gremlin remover and Bryan's one click back to stock multiple times, I've finally come to the conclusion that I need a new battery.
I ordered a new battery today. I will let you know how it goes.
Sent from my GT-P6210 using xda app-developers app
Mine does the same thing... doesn't really crash often.. once in a blue moon. But if I reboot. . I get that instant battery drain ...GR didn't fix it.... I just attribute it to ageing battery.
Sent from my SGH-T959V using xda app-developers app
So I looked I to this issue more. For anyone having this problem, remove the battery and place it on a hard flat surface to see if it has swollen any, if it has then the battery is defective. My battery actually rocks a little. I could actually tell it had swollen before I even put it on my desk.
That is only for seeing whether a cell has busted. It is normal wear and tear. That is kind of like how u lose battery life after hundreds of cycles because it is just how the current li-ion battery technologies work.
I would download the one click and also reflash boot loaders and repartition your device.
Sent from my SGH-T959V using xda premium
Tried that, even with bootloaders. OP also stated they used gremlin remover as well. As we we're both having the exact same problem, I was giving him a better solution that wasn't the standard "reflash, repartition, etc."
I finally got my new battery in. And all is well now. Thanks everyone for the advice and help
Sent from my SGH-T959V using xda app-developers app
thats crazy swapping you battery worked. lol, mine does it too. not so much the crashing just a simple reboot and it will be drop down from 70% to 1%. This was doing the same thing with my phone before my charging port got busted. So i had to swap out the guts from my old galaxy s with broken screen. When i put the new internals in i started with bh's one click back to stock and flashed antonx kernal. Then flashed cm9 and it still does it. i will try a new battery as well.
My thought (AFTER being solved)
Well, I don't mean to come off as rude, but come on guys! I've had this problem for a while, and as soon as it happened I knew I needed a new battery. On top of my phone being somewhat "old", the fact we all play around with it so much, and do so many battery pulls most likely does NOT help the matter. At least I screw around with my phone and try out many ROMs...
But I'm glad I have confirmation that a battery swap will do the trick. It sucks that stores don't carry the t959v battery anymore... Guess I'll be ordering online tonight.

[SOLVED] [Q] Starting from scratch

I'm having issues of the phone rebooting by itself and consequently draining ~90% of the battery when it does so. I've tried flashing a bunch of different ROMS to see if I can stop it from happening, but to no avail. I'd like to go completely from scratch and hopefully I can get to a point where the phone works for an entire day without crashing. I've been using the HD2 instead of the SGS4G for a couple months now, so I'm a bit rusty, which is why I came here to ask for suggestions. This is what I was planning on doing:
- Flash one of these stock ROMs in order to get back to where I started.
- Format my SD card completely and let the phone convert it back to EXT4
- And then flash either Barebone or Valhalla
Do you guys think this would be sufficient enough to remove the problem that's causing these reboot & battery drains?
I would flash eollies kj6 with the blastoff v2 if your not planning on going to ics after because that's the latest gb kernel available and then flash Valhalla or barebones (then you might have to flash blastoff again can't remember right now but it should say in the op of each rom). And I'm pretty sure when you one click back to gb that will convert back ext4 so I would format SD card and reload it before you one click back. Good luck friend
Sent from my mutt hp touchpad using Tapatalk 2
Thanks for your input! Do you think the gremlin remover is necessary, or is it overkill in the context of what I'm doing?
If you want quick and easy use my one click the other two listed is just kernels.
As for getting battery life on ICS flavored roms, well take the time using BBS and STT to figure out whats killing your battery. As long as Im not jumping between wifi and mobile data I can go around 15 hours on a battery. And I havent spent tons of time to figure out why Im not getting more battery life. But others like jeffsf has. And with that I can honestly say if your not getting battery life comparable to GB roms its YOUR fault not the rom. Most ICS roms have stuff built in that you have to use a app for. Therefore a GB rom with nothing installed will get better battery life. But once you put your stuff on and start running the battery life is not being compared properly. The reason for this is most people will keep a app just because they are use to it and not even know the ICS rom has it built in.
I personally think most of our batteries - if still using the one that came with the phone - are starting to run their course. New batteries are inexpensive on Amazon.
I think you guys are misunderstanding my issue. My problem isn't the battery draining quickly over a certain amount of time due to regular use. My problem is that once my phone crashes and reboots, the battery will literally go from whatever percentage I was at, all the way down to below 10%. I can be at 90% battery, and if my phone crashes, it will be on low battery once it powers back up. I'm not sure what's causing the crashes, which is why I'm just trying to start at step 1 and work my way from there.
To test if it was the battery simply draining out very quickly, I turned brightness to 100% and turned WiFi & GPS on, and disallowed the screen from turning off. The battery drained normally.
That happens to me... It gets fixed by shutting down and taking out the battery for 30 seconds.
Sounds like a bad battery
i had the same issue and also would get diff battery levels when booting with or without charger plugged in...i used a toool from market to calibrate battery. i cant remember exact app but will post back if i find it.
edit:
it was "Battery Calibration"
by NéMa
and i had to do it a couple of times to get it to set in.
Like thecontroller stated its a bug and you should be able to correct it by pulling the battery out and waiting a few extra seconds. If it does it still hold the power button down for a little while with the battery out.
Do this next time you have a crash on ics. Time how long it takes for the phone to restart. It is seems abnormally long you could have some scripts that are running on boot that is causing issues.
Calibrating the battery can be done manually. All you have to do is delete the batterystat.bin file. That is all those apps do. And really If you fully charge your battery it should be deleting itself.
http://forum.xda-developers.com/showthread.php?t=1445698
Quote:
Originally Posted by kalel29 So,all the battery calibration tutorials are useless???????
In a nutshell, yes. You are only putting extra stress on your battery by "tricking" it according to various calibration guides. Batterystats.bin file is generated for a reason. Batterystats.bin is in /data partition, so after you install a new ROM that wipes your previous data, it gets wiped too. So, "Wipe battery stats after installing a new ROM", which is a cliche among those guides, is pointless. Last but not least, batterystats file is simply a logging tool that monitors your battery behavior. The "stats" part is pretty self-explanatory. The actual Power Manager lies in kernel, not in /data partition which accessible to anyone.
SBD all that info is true. But if you use the aroma installer it will backup and restore the data partition. Not sure if it will restore the batterystat.bin file or not. That is why I posted what I did. I do not believe in calibrating batteries as much as making sure they file is not storing data that is out of date.
As you guys mentioned earlier ...hard resets are the best ....I find our batteries do go bad. And when they do....they do all kinds of odd things to the device
m4127440 said:
i had the same issue and also would get diff battery levels when booting with or without charger plugged in...i used a toool from market to calibrate battery. i cant remember exact app but will post back if i find it.
edit:
it was "Battery Calibration"
by NéMa
and i had to do it a couple of times to get it to set in.
Click to expand...
Click to collapse
Battery calibrations are garbage. They do nothing. The file that any battery calibration app deletes is deleted by Android anytime you do a full charge anyway.
Sent from my SGH-T959V using xda premium
lumin30 said:
I personally think most of our batteries - if still using the one that came with the phone - are starting to run their course. New batteries are inexpensive on Amazon.
Click to expand...
Click to collapse
Not to mention the screen. Was in Costco last week, saw the old T959V on display and held mine up to it. Screen is faded bad I don't know if any of you else have noticed that lol
Sent from my SGH-T959V using xda app-developers app
Okay, so I formatted my SD card, and flashed Eollie's KJ6 using Heimdall. After that, I flashed Raver's Valhalla Black.
Initially, I didn't install anything extra other than updating gmail and superuser. Everything worked fine, apart from one random reboot. Once it booted back up, everything was normal. Today, I installed around 5 apps. I was using one of those apps (Reddit Is Fun), and while using it, the phone crashed. Once my phone booted back up this time, everything force closed, and log provider force closed over and over. I had someone text me, and right after they did my phone just crashed. I tried fixing permissions, but that didn't do anything.
Any suggestions?
--edit--
I just factory reset and tried reflashing Valhalla Black, but everything just force closes again even on a fresh install.
Boy I don't know what the hell you're doing but you are doing something very wrong.
Flash back to stock (complete stock). http://forum.xda-developers.com/showthread.php?t=1358498
Then flash AntonX http://forum.xda-developers.com/showpost.php?p=19601810&postcount=2
Once you do that, flash a ROM.
I just went through the same issue. This was going on rarely for several weeks then got more frequent. I have a couple of extra batteries that T-Mobile sent me when I first got the phone....swapped in one and its been 10 days without a single issue. Before posting here tonight I put my old battery back in and guess what? Symptoms came back within 30 minutes....so....
Sent from my SGH-T959V using xda app-developers app
Then there's your answer, you need a new battery my friend
Just so weird, I don't see how a battery can affect the OS in that way haha. I've ordered a new battery anyway, they're only like $5 on Amazon, but I'm gonna try your steps anyway, controller. Thanks a lot guys.

[Q] battery miscalibration, please help!

Howdy folks. I have a major problem with my t769, and was hoping someone could help me figure it out. This problem began quite some time ago and has gotten worse. My battery stopped accepting a full charge (according to the meter.)
I had been running PA (racing port) for quite a while without a problem. The problem may have cropped up due to charging the phone while off at some point. When the problem first appeared, it would only charge up to 98%. I chalked it up to the fact that some phones apparantly don't trickle charge (for battery longevity?). Then the phone would only get to ~90%, then 83%... etc.
I have tried all three kernels available to us, nothing changes. Tried several different basebands. Tried reinstalling PA, no dice. Tried changing roms. Currently on Provision rom. The battery will not charge beyond 48 percent.
My issue does not appear to be a faulty battery; I recently purchased a couple new batteries and they do the same thing. Even after charging with an external charger - the phone still misreports the battery capacity. This has the effect of reaching a battery level of 0% (according to the meter) long before the actual battery capacity is exhausted. Further to that end, the android battery stats are never automatically wiped since the phone's battery meter never actually reaches 100%. The android battery stats page currently shows 4days on battery. I suppose this is because I last manually wiped the battery stats or pulled the battery 4 days ago.
Some more odd tidbits...
When the phone's battery meter reports 0%, the phone will automatically shut off ONLY if the display is ON. If the phone reaches the 0% mark while the display is OFF, it will continue to run and sometimes readjust the battery meter in 4-5% increments. i.e. if I turn off the screen when it hits 1%, and turn back on the screen some time later and the meter will report 4%. Other times it seems it will not readjust the meter while the screen is off and will remain at 1%. When the phone reports 1%, the battery is still outputting at least 3.5v. From what I understand, most 3.7v lithium ion batteries have an approximate safe operating range of between 3.2v-4.2v.
Really odd:
It seems that once the battery is pulled, the meter will revert to 0% once the phone is booted regardless of what the meter showed before the battery pull. I have not done this in the last couple days but it has happened several times and appears to be a repeatable issue.
All of my problems could logically be caused by a battery miscalibration, save the last point.
I have tried several calibration apps in the market that don't seem to do anything. I recently stumbled on this huge thread:
http://forum.xda-developers.com/showthread.php?t=765609
I have not read through all 200+ pages but it seems this has worked for many people. Unfortunately, I've been unable to get it to report values with the lightningX2 or CM10 kernels though. It states that the CM kernel should be supported, so I don't understand why it doesn't want to spit out values.
Any help would be greatly appreciated. I've grown quite attached to this phone and would like to continue using it!
Charge your phone overnight. Reboot to recovery (leave the phone plugged in). In cwm navigate to the advanced menu. Then in that menu wipe battery stats. Then let your battery drain down as much as possible before charging it again.
That should fix it.
Sent from my SGH-T769 using xda app-developers app
Many thanks for the reply. I'm currently using TWRP and I dont believe there is a section to wipe the battery stats.
I have removed the batterystats bin manually once android has booted both when the battery is in a near-dead state and in a near-full state and neither seemed to change the meter level. Perhaps I will see a different result by removing this file through recovery before Android boots?
I may install CWM to give this a shot soon but from what I understand, and please correct me if I am mistaken, the removal of this file has no bearing on the actual battery calibration. It was said that this file only affects what is displayed in the android battery stats page. There does appear to be a lot of confusion and controversy across the forums regarding whether or not this file is indeed responsible for actual calibration between true battery capacity and the state of the battery meter.
Not sure if this is important but when charging the phone (while turned off) the bootloader charging animation seems to report a value that is consistant with what the booted meter reports. (i.e. the animation will show ~50% battery left when the meter inside android will report 48%)
anactoraaron said:
Charge your phone overnight. Reboot to recovery (leave the phone plugged in). In cwm navigate to the advanced menu. Then in that menu wipe battery stats. Then let your battery drain down as much as possible before charging it again.
That should fix it.
Sent from my SGH-T769 using xda app-developers app
Click to expand...
Click to collapse
kmem said:
Many thanks for the reply. I'm currently using TWRP and I dont believe there is a section to wipe the battery stats.
I have removed the batterystats bin manually once android has booted both when the battery is in a near-dead state and in a near-full state and neither seemed to change the meter level. Perhaps I will see a different result by removing this file through recovery before Android boots?
I may install CWM to give this a shot soon but from what I understand, and please correct me if I am mistaken, the removal of this file has no bearing on the actual battery calibration. It was said that this file only affects what is displayed in the android battery stats page. There does appear to be a lot of confusion and controversy across the forums regarding whether or not this file is indeed responsible for actual calibration between true battery capacity and the state of the battery meter.
Not sure if this is important but when charging the phone (while turned off) the bootloader charging animation seems to report a value that is consistant with what the booted meter reports. (i.e. the animation will show ~50% battery left when the meter inside android will report 48%)
Click to expand...
Click to collapse
Just out of curiosity, does this happen across all roms? Does it do it for stock as well? Maybe return to stock and check? I gave up on TWRP not because I didn't like the recovery, but it seemed to be... off... somehow... The 2.4 wouldn't restore backups (and would randomly reboot), and the 2.3.3 wouldn't reboot when plugged in (it would just power off). I also had some issues with my sd card with one of them (2.3.3 I think but not sure) on one of the JB roms and I lost all of my data. After going back to CWM 5.5.0.4 I haven't had any issues.
Both TWRP versions are built on the default CM10 kernel (correct me if I'm wrong here). I went back to stock about 2 weeks ago and am getting 4-5 days on battery life (light usage) where on ANY JB kernel the most I could get was a day and a half. Perhaps there's something missing/wrong with the JB kernel, and as such, TWRP isn't working properly because of it.
Perhaps the battery isn't getting read properly... have you tried cleaning the contacts with iso alcohol?
Sorry I couldn't be more help...:crying:
It happens for the two JB roms I have tried. I've not tried to return to stock yet but if you are getting 4-5 days of light usage that is incentive enough for me to give it a whirl! I never was able to squeeze more than about a day and a half out of a JB rom on my blaze either, even before these battery problems cropped up. I started using TWRP on my last phone mainly due to the fact that it can compress the backups but I've also become more accustomed it's UI. I think I'm currently using 2.4, but I vaguely remember both the SD issue and the power off instead of reboot issue you describe with the previous rev.
I can't speak to if the recoveries are built from CM. Now that you mention it, both JB roms that I have tried on the blaze show higher than normal battery usage by media and android system processes. Are you running a complete stock ICS or GB rom, or is it some debloated one? Can you tell me which one it is?
I've cleaned both the internal battery connector and micro usb connector to no avail. You have been a great deal of help, thanks again!
One other quick Q... After returning to stock, do you still have the black and white colored (powered off) charge animation? Ever since I rooted this thing, the power off charge animation starts up with the stock color (green filled battery) but quick flashes off and changes to the black and white one. Perhaps this is part of my problem, remanants of the stock bootloader mixed with the rooted one?
anactoraaron said:
Just out of curiosity, does this happen across all roms? Does it do it for stock as well? Maybe return to stock and check? I gave up on TWRP not because I didn't like the recovery, but it seemed to be... off... somehow... The 2.4 wouldn't restore backups (and would randomly reboot), and the 2.3.3 wouldn't reboot when plugged in (it would just power off). I also had some issues with my sd card with one of them (2.3.3 I think but not sure) on one of the JB roms and I lost all of my data. After going back to CWM 5.5.0.4 I haven't had any issues.
Both TWRP versions are built on the default CM10 kernel (correct me if I'm wrong here). I went back to stock about 2 weeks ago and am getting 4-5 days on battery life (light usage) where on ANY JB kernel the most I could get was a day and a half. Perhaps there's something missing/wrong with the JB kernel, and as such, TWRP isn't working properly because of it.
Perhaps the battery isn't getting read properly... have you tried cleaning the contacts with iso alcohol?
Sorry I couldn't be more help...:crying:
Click to expand...
Click to collapse
kmem said:
It happens for the two JB roms I have tried. I've not tried to return to stock yet but if you are getting 4-5 days of light usage that is incentive enough for me to give it a whirl! I never was able to squeeze more than about a day and a half out of a JB rom on my blaze either, even before these battery problems cropped up. I started using TWRP on my last phone mainly due to the fact that it can compress the backups but I've also become more accustomed it's UI. I think I'm currently using 2.4, but I vaguely remember both the SD issue and the power off instead of reboot issue you describe with the previous rev.
I can't speak to if the recoveries are built from CM. Now that you mention it, both JB roms that I have tried on the blaze show higher than normal battery usage by media and android system processes. Are you running a complete stock ICS or GB rom, or is it some debloated one? Can you tell me which one it is?
I've cleaned both the internal battery connector and micro usb connector to no avail. You have been a great deal of help, thanks again!
One other quick Q... After returning to stock, do you still have the black and white colored (powered off) charge animation? Ever since I rooted this thing, the power off charge animation starts up with the stock color (green filled battery) but quick flashes off and changes to the black and white one. Perhaps this is part of my problem, remanants of the stock bootloader mixed with the rooted one?
Click to expand...
Click to collapse
I'm running stock rooted uvmb1 (ics), which I've debloated and customized a bit (nothing special). Stock roms have the stock battery charging animation.
The battery drain is just one of those things I can't fully explain, as I have a few other devices running CM10 or 10.1 and they have great standby/light usage battery life

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