Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
How old is the battery are you charging USB or AC?
Most likely its a old battery
Sent from my Inspire 4G using xda premium
virusmonk3y said:
Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
Click to expand...
Click to collapse
very odd, I've actually experienced the inverse. Charge would hold at like 20% and then jump to 10% in a second. Are you noticing in use there is a jump back down i.e. when you unplug, does it jump from 100% straight to 90% or does this just happen when charging. If it just happens with charging, I'd say run current widget and see how much mA is left when it makes the jump to 100% and see if the battery is actually charging correctly. In other words, if you're charging and the battery jumps from 90 to 100 and you still have like 200 mA left, something is goofy with your battery and I'd recommend a new battery or at the very least full wiping and reflashing your ROM.
If it jumps and the remaining mA is like 30 or something low, then the actual battery seems to be fine and I'd recommend a full wipe and reflash the rom you're using. In all honestly, it's probably the battery and may just be worth getting a new one.
virusmonk3y said:
Note: I searched the forum and saw nothing like my issue, if there is then I missed it and I apologize.
So here is the issue. When charging it gets to between 85-90% then immediately jumps to 100%. Have tried clearing the stats, draining, then full charge. Any suggestions on this?
Click to expand...
Click to collapse
Im not attacking you im just trying to clarify. Are you saying it jumps to 100%, meaning you see it say 100% or are you referring to the led going green at about 90%?
I'm not convinced it is a battery issue... I've only very recently rooted my phone (have had it for 11 months) and haven't had the charge indicator jump past the last 10% like it did just today.
Looking at the last 26hours of history (ICS 3.0.0 install), the initial battery discharge showed normal taper from 100-85%, however on charge it jumped from somewhere just below 90% to 100% instantaneously.
I should have taken a screenshot, but instead I wiped the battery stats and am in the initial discharge cycle still. I've had the phone 11 months and have never cleared the battery stats before.
Maybe 8 months old.
Sent from the internets
Darunion said:
Im not attacking you im just trying to clarify. Are you saying it jumps to 100%, meaning you see it say 100% or are you referring to the led going green at about 90%?
Click to expand...
Click to collapse
When it hits 85-90% the led turns green then it shows 100% right after that.
Sent from the internets
virusmonk3y said:
When it hits 85-90% the led turns green then it shows 100% right after that.
Sent from the internets
Click to expand...
Click to collapse
the led is supposed to go green at 90% to indicate trickle charge mode. but ya that should not be triggering the 100%. are you using a battery mod that isnt included with the rom?
virusmonk3y said:
When it hits 85-90% the led turns green then it shows 100% right after that.
Sent from the internets
Click to expand...
Click to collapse
Run the battery down until the phone dies. I have had this happen to me before. When I got down to 1%, it took a really long time for the phone to die. Recharging and doing a couple of long cycles of letting the battery go down to a really low level before charging fixed it. Do not delete battery stats as it does no good.
Sent from my Inspire 4G using Tapatalk
fernandezhjr said:
Run the battery down until the phone dies. I have had this happen to me before. When I got down to 1%, it took a really long time for the phone to die. Recharging and doing a couple of long cycles of letting the battery go down to a really low level before charging fixed it. Do not delete battery stats as it does no good.
Sent from my Inspire 4G using Tapatalk
Click to expand...
Click to collapse
Did that already, stated that in OP
Sent from the internets
Darunion said:
the led is supposed to go green at 90% to indicate trickle charge mode. but ya that should not be triggering the 100%. are you using a battery mod that isnt included with the rom?
Click to expand...
Click to collapse
No mod on the battery.
Sent from the internets
virusmonk3y said:
Did that already, stated that in OP
Sent from the internets
Click to expand...
Click to collapse
You stated in the op you cleared battery stats. I specifically mentioned trying the process without clearing battery stats and doing some additional cycles without clearing.
Sent from my Inspire 4G using Tapatalk
fernandezhjr said:
You stated in the op you cleared battery stats. I specifically mentioned trying the process without clearing battery stats and doing some additional cycles without clearing.
Sent from my Inspire 4G using Tapatalk
Click to expand...
Click to collapse
Indeed. I did that twice actually
Sent from the internets
virusmonk3y said:
Indeed. I did that twice actually
Sent from the internets
Click to expand...
Click to collapse
Well if calibration processes fail to correct it, then I would suspect a bad battery.
Sent from my Inspire 4G using Tapatalk
You might try an app called Battery Calibration. Found here http://forum.xda-developers.com/showthread.php?t=1024867
I don't necessarily use it to calibrate but to monitor the mV. It might help in seeing if it is in fact a bad battery or if your battery indicator is showing a false reading.
Sent from my MB860 using Tapatalk
jp2132 said:
You might try an app called Battery Calibration. Found here http://forum.xda-developers.com/showthread.php?t=1024867
I don't necessarily use it to calibrate but to monitor the mV. It might help in seeing if it is in fact a bad battery or if your battery indicator is showing a false reading.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
Yea I tried that after the normal calibration. Another weird thing is my phone has been sitting at 1% for like an hour.
Sent from the internets
virusmonk3y said:
Yea I tried that after the normal calibration. Another weird thing is my phone has been sitting at 1% for like an hour.
Sent from the internets
Click to expand...
Click to collapse
Go back and read my first post. I told you this would happen.
Sent from my Inspire 4G using Tapatalk
fernandezhjr said:
Go back and read my first post. I told you this would happen.
Sent from my Inspire 4G using Tapatalk
Click to expand...
Click to collapse
The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
Sent from the internets
virusmonk3y said:
The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
Sent from the internets
Click to expand...
Click to collapse
Then it may be that time. I got my battery to hold out a little longer, but soon after, I started getting bad drain. I recently replaced my battery and haven't had issues since.
Sent from my Inspire 4G using Tapatalk
virusmonk3y said:
The sitting at 1% was happening before. Just never really payed attention to it. Have tried the normal calibration twice now and the method you mentioned as well. Going to ATT tomorrow and see about exchanging the battery. Will post results.
Edit: Want to add a thanks for all the suggestions from everyone.
Sent from the internets
Click to expand...
Click to collapse
Sounds more like a battery calibration issue than a battery issue.
Give it a bit of thought... from 90% it skips to 100% when charging. However at 1% it camps out for an hour or more before shutting off. This indicates an issue with how the charge of the battery is being measured/expressed...
Now let's think about what is happening behind the scenes. This measure of charge is "defined as the available capacity expressed as a percentage of some reference, sometimes its rated capacity but more likely its current (i.e. at the latest charge-discharge cycle) capacity but this ambiguity can lead to confusion and errors. It is not usually an absolute measure in Coulombs, kWh or Ah of the energy left in the battery which would be less confusing. "
Essentially, the way the phone is measuring the battery isn't working correctly. However, is the duration of the battery life what you would expect given your use of it?
If YES, then it's a measuring issue.
Related
Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
I've noticed since I got the tbolt day one. Im in the 15% range when reboot. My screen freeze after lightning strike for 3 minutes. Was hoping the new update would fix it but update now delayed. Never again will I be the first in line for phone.
Sent from my ADR6400L using XDA Premium App
The percentage drops but it stays at whatever that percentage is for an hour or five depending on how much I'm using my phone.
because your battery gauge is lying to you and not reporting accurately prior to reboot.
dbisch said:
Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
Click to expand...
Click to collapse
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
What do you use to calibrate it? Wiping the battery stats?
Check out this thread: http://forum.xda-developers.com/showthread.php?t=871051
Basically the meter is lying because keeping your phone at 100% while charged is not so good for long term life of the battery. So once you get a full charge it doesn't keep the battery full, and when you take it off the charger the meter quickly catches up to reality.
So don't worry, it's supposed to happen this way.
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
How do I calibrate it?
There's an app on the Market called BatteryCalibration, works well.
Sent from my ADR6400L using Tapatalk
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
It may help battery life, but it won't fix the issue
dbisch said:
How do I calibrate it?
Click to expand...
Click to collapse
There are several threads explaining this but you just:
-Charge to 100% and boot into recovery
-Select advanced>wipe battery stats
-Use phone normally until battery dies and it powers off
-Charge back up to 100% (preferably while still off)
Edit- if you are running das bamf you can also clear them from the toolkit.
dirtyfingers said:
It may help battery life, but it won't fix the issue
Click to expand...
Click to collapse
It will fix the issue that the OP is having of the phone dropping % drastically when they reboot. If you are talking about the phone dropping from 100 to 95% or so after you unplug, then no it won't, because that is actually a safety feature that you do not want to fix, unless of course you want to burn your phone up.
ska.t73 said:
It will fix the issue that the OP is having of the phone dropping % drastically when they reboot. If you are talking about the phone dropping from 100 to 95% or so after you unplug, then no it won't, because that is actually a safety feature that you do not want to fix, unless of course you want to burn your phone up.
Click to expand...
Click to collapse
Thanks. I just want my battery % to be accurate.
dbisch said:
Thanks. I just want my battery % to be accurate.
Click to expand...
Click to collapse
No problem, if that is what you want then doing a battery stats wipe will do that. It should be done actually everytime you change ROMs or upgrade a ROM.
Just follow Dirtyfingers instructions, or use a Battery Calibration app from the market
ska.t73 said:
No problem, if that is what you want then doing a battery stats wipe will do that. It should be done actually everytime you change ROMs or upgrade a ROM.
Just follow Dirtyfingers instructions, or use a Battery Calibration app from the market
Click to expand...
Click to collapse
Man, don't say that in the dev area, or the irc. There was someone named Confucius on there yesterday reaming people for wiping battery stats. It wasn't pretty.
Doug B.
dvgb173 said:
Man, don't say that in the dev area, or the irc. There was someone named Confucius on there yesterday reaming people for wiping battery stats. It wasn't pretty.
Doug B.
Click to expand...
Click to collapse
It is a bad idea to wipe battery stats? Can it damage the phone?
dbisch said:
It is a bad idea to wipe battery stats? Can it damage the phone?
Click to expand...
Click to collapse
No your phone stores how long it takes to die charge etc. and when you change roms these stats obviously change and therefore wiping the stats allows the phone to really calibrate to the new rom. At least I think that's how it is.
Sent from my ThunderBolt using XDA App
dbisch said:
Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
Click to expand...
Click to collapse
This happens to me and it annoys me everytime it does it. I dont know why for some reason this is a recurring thing with HTC phones.
My battery drops 10-15% rather quickly when I unplug it but I believe this is actually normal with newer Li-Ion charging techniques.
Mine drops about 5% after a reboot. I reset my batteries stats today and hope that will improve my battery life, but I must say I got about 8 eight hours today with fairly heavy use and a few reboots.
for the past 3 days, this is what it does after just a random reboot. This was from this morning. *A huge drop in battery life*.
Now granted, have charged it a few times just until i can get to a moment where I can charge it fully without unplugging it.
Just for my own clarification, do you see the huge drop in battery power after the sudden reboot? If so, I'm wondering if the battery isn't bad, telling the phone it doesn't have a charge, and the phone shuts down/reboots.
Was anything done to the phone prior to this problem (new ROM, new kernel, rooted, etc.) other than calibrating the battery? What were you using to calibrate?
stephen_w said:
Just for my own clarification, do you see the huge drop in battery power after the sudden reboot? If so, I'm wondering if the battery isn't bad, telling the phone it doesn't have a charge, and the phone shuts down/reboots.
Was anything done to the phone prior to this problem (new ROM, new kernel, rooted, etc.) other than calibrating the battery? What were you using to calibrate?
Click to expand...
Click to collapse
My bad on the unclear post. Rushing, multitasking not working...lol. Yeah that's what i'm referring to. I edited the op.
Not sure why it does that. I'm using the battery calibrator from the market. I did install a new ROM a few days ago.
Sent from my SGH-T959V using xda premium
digitallure said:
My bad on the unclear post. Rushing, multitasking not working...lol. Yeah that's what i'm referring to. I edited the op.
Not sure why it does that. I'm using the battery calibrator from the market. I did install a new ROM a few days ago.
Sent from my SGH-T959V using xda premium
Click to expand...
Click to collapse
Lol, no worries, I was barely into my first cup of coffee. What ROM did you install? Any chance of using a different battery to see if it's the battery or possibly an issue with the phone ir the ROM?
Sent from my SGH-T959V using XDA App
stephen_w said:
Lol, no worries, I was barely into my first cup of coffee. What ROM did you install? Any chance of using a different battery to see if it's the battery or possibly an issue with the phone ir the ROM?
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
LOL. I flashed the Octane rom by raver. I don't have another battery to test it out, but It's happened a couple times with different roms. Usually when I calibrate, on a full charge at 4.2v, I wipe the stats about 2x's in cwm, then calibrate with the app, then unplug then plug again to boost it back to 4.2v then calibrate again. All of this just to make sure it's calibrated. may be overkill.
digitallure said:
LOL. I flashed the Octane rom by raver. I don't have another battery to test it out, but It's happened a couple times with different roms. Usually when I calibrate, on a full charge at 4.2v, I wipe the stats about 2x's in cwm, then calibrate with the app, then unplug then plug again to boost it back to 4.2v then calibrate again. All of this just to make sure it's calibrated. may be overkill.
Click to expand...
Click to collapse
I hear ya. I usually do that two or three times, too. All calibration does is, like you said, wipe the stats. The reboot is weird, though, as it's followed by that sudden drop in battery. Could be the battery is faulty. I wish I had more insight to help you.
stephen_w said:
I hear ya. I usually do that two or three times, too. All calibration does is, like you said, wipe the stats. The reboot is weird, though, as it's followed by that sudden drop in battery. Could be the battery is faulty. I wish I had more insight to help you.
Click to expand...
Click to collapse
No problem. That's the jist of it...lol
Heyy after calibrating the battery how long does it usually take to see the effects of extra battery life?
I've seen varying answers on that ranging from 1 day to a few days. A lot of calibrate after flashing a new ROM, so that might add a bit of time as the system rebuilds caches and whatnot. I would think that you would only need to do the full calibration once before starting to see the effects.
I usually do the calibration then go through letting it (almost) fully die, then do a full recharge 2 or 3 times.
stephen_w said:
I've seen varying answers on that ranging from 1 day to a few days. A lot of calibrate after flashing a new ROM, so that might add a bit of time as the system rebuilds caches and whatnot. I would think that you would only need to do the full calibration once before starting to see the effects.
I usually do the calibration then go through letting it (almost) fully die, then do a full recharge 2 or 3 times.
Click to expand...
Click to collapse
Thank you very much sir. So I should just put brightness to max, connect wifi, and turn on as many apps as i can before it almost dies, then turn back to normal and charge to 100?
xxjhnxx said:
Thank you very much sir. So I should just put brightness to max, connect wifi, and turn on as many apps as i can before it almost dies, then turn back to normal and charge to 100?
Click to expand...
Click to collapse
I don't do anything different when I let it die. I just let it happen through normal use. I guess if you wanted to accelerate it, that would work.
I'm not an expert in battery, but it looks to me like you're putting alot of stress on your battery from the constant wiping, calibrating, and letting it die. I'm not sure but i heard that letting it die too often is a bad thing. Have you tried calibrating it and just use it like normal?
Well err. I just calibrated my battery but it's still going down quickly. I lose like 5% battery in less than 10 minutes
Sent from my SGH-T959V using xda premium
This will likely fix any battery reporting problems that occur and should be done after installing a rom, or whenever you think it is needed. It will not actually make your battery life better. It may seem like it as before resetting it may have said 1% remaining when it was really only half dead
NOTE: you must be rooted, which if you are on this forum you almost definitely are
1. fully charge battery and leave plugged in. click calibrate in this app or manually delete the file yourself: https://play.google.com/store/apps/...yLDEsImNvbS5uZW1hLmJhdHRlcnljYWxpYnJhdGlvbiJd
2. Unplug and let the phone die with normal use
3. charge it fully without a break.
4. done. thank me if it helps
This resets the battery stats. It was noted awhile back from someone at Google that this doesn't help with the battery. I used to use this app all the time after a flash and then a couple of months back i stopped using it and really haven't noticed a difference. I'm not trying to ruin your moment of helpfulness but I really don't think it helps with the battery.
Sent from my SAMSUNG-SGH-I997 using xda premium
tmease1 said:
This resets the battery stats. It was noted awhile back from someone at Google that this doesn't help with the battery. I used to use this app all the time after a flash and then a couple of months back i stopped using it and really haven't noticed a difference. I'm not trying to ruin your moment of helpfulness but I really don't think it helps with the battery.
Sent from my SAMSUNG-SGH-I997 using xda premium
Click to expand...
Click to collapse
No problem. You are right. This will not help if your battery is actually draining. It only changes what android thinks your battery level is at. this can get screwed up after a flash, depending on many factors of the rom. It also is different with every device. What it helps with is when your stats are off. for example temple run takes 60% of your battery when you play for 5 minutes and you know it isn't running, or it drains fast to 1% then lasts another 6 hours. So if you are noticing poor battery life, make sure it is really bad, not just reported wrong. I will edit the OP to say this more clear.
2. Unplug and let the phone die with normal use
3. charge it fully without a break.
Click to expand...
Click to collapse
This is what really fixes the issue. Clearing battery stats with an app or through cwm is redundant.
I don't recommend discharging all the way though
I thought fully charging the battery reset the stats. No?
Sent from my MB865 using XDA
KEB64 said:
I thought fully charging the battery reset the stats. No?
Sent from my MB865 using XDA
Click to expand...
Click to collapse
I think partially, but I know for a fact this process works great and isn't that hard. It resets things better from my understanding because it totally wipes stats instead of just re-calibrating some things
i recently flash Wildchild IcE v0.6 Beta Rom (Good One) i tried calibrating the battery and deleting the battery file in recovery and still dont getting the battery to work well. it can be at 100% and i reboot the phone and it appears at 13% (ex) it even happens without rebooting the phone. Any help?
koete said:
i recently flash Wildchild IcE v0.6 Beta Rom (Good One) i tried calibrating the battery and deleting the battery file in recovery and still dont getting the battery to work well. it can be at 100% and i reboot the phone and it appears at 13% (ex) it even happens without rebooting the phone. Any help?
Click to expand...
Click to collapse
Does this happen with any other ROM?
Sent from Spaceball One.
blackknightavalon said:
Does this happen with any other ROM?
Sent from Spaceball One.
Click to expand...
Click to collapse
it used to with bulletproof when i used the battery text indicator. Sometimes the battery works great but sometimes this happens.
koete said:
it used to with bulletproof when i used the battery text indicator. Sometimes the battery works great but sometimes this happens.
Click to expand...
Click to collapse
Try another battery.
Sent from Spaceball One.
blackknightavalon said:
Try another battery.
Sent from Spaceball One.
Click to expand...
Click to collapse
How can I know if it is my battery?
Sent from my myTouch_4G_Slide using xda premium
koete said:
How can I know if it is my battery?
Sent from my myTouch_4G_Slide using xda premium
Click to expand...
Click to collapse
By trying another battery.
I'm in the process of getting the ankers, but my stock battery is trash period, my battery stats show like that, I can be at 30% then reboot and be at like 5, but I can plug in before a reboot and then be at like 50%. I know its going to kill my battery eventually like it did on my buddies G1, and I know that's an old phone but his was doing these same exact things and one day he took it off charge at 100% and 30 seconds later went dead and we never got that battery back.
Last night when I got home my battery was like 30% and I was showing off pix from the zoo my ds just decided to say low battery and shut down. So I gave it 5 and brought it back up with 20%? So I would def think its the battery, seems how hot the stock one gets
Sent from my myTouch_4G_Slide using Tapatalk 2
strapped365 said:
I'm in the process of getting the ankers, but my stock battery is trash period, my battery stats show like that, I can be at 30% then reboot and be at like 5, but I can plug in before a reboot and then be at like 50%. I know its going to kill my battery eventually like it did on my buddies G1, and I know that's an old phone but his was doing these same exact things and one day he took it off charge at 100% and 30 seconds later went dead and we never got that battery back.
Last night when I got home my battery was like 30% and I was showing off pix from the zoo my ds just decided to say low battery and shut down. So I gave it 5 and brought it back up with 20%? So I would def think its the battery, seems how hot the stock one gets
Sent from my myTouch_4G_Slide using Tapatalk 2
Click to expand...
Click to collapse
Exactly same problem. Sometimes it would be at 12% like for 1 1/2 hour until it gets to 11%. I noticed that my battery drain pretty fast when it gets hot. Eventually my battery works great,I think is the phone. Where I can find de ankers at the lowest price?
Sent from my myTouch_4G_Slide using xda premium
koete said:
Exactly same problem. Sometimes it would be at 12% like for 1 1/2 hour until it gets to 11%. I noticed that my battery drain pretty fast when it gets hot. Eventually my battery works great,I think is the phone. Where I can find de ankers at the lowest price?
Sent from my myTouch_4G_Slide using xda premium
Click to expand...
Click to collapse
Amazon.com or ebay
Hi everyone,
I'm currently running CM10 on my AT&T One X. It runs great, but when I hit 6% battery, it suddenly jumps to 1% and shuts off a few seconds later. I've tried recalibrating by using the app available on Google Play, as well as letting it shut off and recharging all the way. Neither have seemed to fix the issue. My question is; are there any other ways to recalibrate the battery, or simply cause the battery indicator to display the proper percentage?
Thanks to anyone with advice!
Have you looked to see if anyone else on CM10 reporting anything similar?
In any case, the battery meter is not all that accurate in the best of conditions. I wouldn't trust the meter being below 10% to mean you have much significant battery. Really, by the time you hit 20% or so, you should be looking to charge.
Why you letting it get that low? Normally around 10% I plug in.
Sent from my HTC One XL using Tapatalk 2
It's not habitual or anything. I just normally don't plug it in until I go to sleep, and sometimes it dies before that time comes.
CheesyNutz said:
Why you letting it get that low? Normally around 10% I plug in.
Sent from my HTC One XL using Tapatalk 2
Click to expand...
Click to collapse
This isn't based on facts but my 2 cents is that because the calibration of the battery isn't wiped, it's not accurate. There's no wipe battery stats in TwRP. If you ever notice the battery percentage in TWRP after flashing many ROM, it differs from the actual phone.
I wipe the batterystats.bin in data/system when full then reboot but who knows if that even works. I had my phone turn off @ 3% once so who knows but charge it as soon as it gets in the teens. Its bad for the battery if it keeps powering off when low.
sent from rooted 2.20 & always flashed 1X
HYE_TECH said:
This isn't based on facts but my 2 cents is that because the calibration of the battery isn't wiped, it's not accurate. There's no wipe battery stats in TwRP. If you ever notice the battery percentage in TWRP after flashing many ROM, it differs from the actual phone.
I wipe the batterystats.bin in data/system when full then reboot but who knows if that even works. I had my phone turn off @ 3% once so who knows but charge it as soon as it gets in the teens. Its bad for the battery if it keeps powering off when low.
Click to expand...
Click to collapse
You're right: that isn't based on facts.
Battery stats get reset every time you charge your phone. Manually wiping them does nothing.
http://www.xda-developers.com/android/google-engineer-debunks-myth-wiping-battery-stats-does-not-improve-battery-life/
This issue has been discussed in other threads. Seems to be specific To CM roms only.
Some report steep declines from 40% to zero in seconds. You seem lucky.
Sent from my HTC One X using xda app-developers app
Okay good to know; thanks. I'll be patient.
c5satellite2 said:
This issue has been discussed in other threads. Seems to be specific To CM roms only.
Some report steep declines from 40% to zero in seconds. You seem lucky.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I wouldn't worry about it. Mine turns off anywhere from 5 to 15%. The battery percentage is just an estimate based on the software, it's not an actual indicator. As such there are tons of variables that can affect when the phone is actually out of battery.
TWRP also doesnt report battery correctly and it has nothing to do with the stats. It is taking more of an educated guess as to where it's at. Believe it has something to do with are phones.
thanks for the info.. i have experienced this issue also
Battery percentage is guessed at based on voltage. As the battery drains, voltage decreases slightly. Yes it is an educated guess. Every battery behaves slightly differently and has a unique profile or discharge curve. Some may be steeper than others at the end, but the device should learn this and adjust accordingly. An internal short in a composite battery like this would also exhibit this behavior, only exhibiting itself at certain voltage levels(dependant on location of physical short in battery) where voltage drops to 0 at that moment. I have seen this issue in defective packs where they work fine most of the time, but then zero all of a sudden. I'm not saying this is your problem, but the case design/new soft shell battery(no hard plastic shell to protect against the internal layers from being squeezed together) is wide open to physical damage from the phone being compressed.
Try a stock ROM and verify it works normally. If not, the battery is damaged.
My One X has never shut off before it reached 1%. I unlocked it 4 days after getting it in the beginning of June and have been running CR ever since and never had a steep battery decline.
Sent from my HTC One X using xda app-developers app