Hello, not sure if this is the right page to request this type of help but here's the deal: the last few days I've been having a sudden crazy battery drain... I cleared the cache, then performed a factory reset and the battery was still draining - around 1.5% per minute with the screen on. Around 1% every 3-4 minutes with the screen off. I read an article about Safe Mode.. and before I got into Safe Mode I had 23% battery... when I got into Safe Mode.. it showed me 62%. I got back into "normal" mode and it still showed 62... now it's currently at 60%. Thought this is weird.. any idea what's going on?
Either bad calibration or a dying battery. Do a full cycle (run it till it's dead then charge it to full before booting). If you still experience problems you should probably get the battery replaced.
CurtisMJ said:
Either bad calibration or a dying battery. Do a full cycle (run it till it's dead then charge it to full before booting). If you still experience problems you should probably get the battery replaced.
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Any idea what might have caused the bad calibration?
It seems to be ok for now.. It hasn't discharged yet.. will let it turn off on 0 battery and then charge it full. Thanks.
Calibration can go out if you regularly charge it when it's not empty yet. Modern batteries dont have as many problems with memory, but it's still possible.
Related
Is this normal. I did try and do a search in my defence.
Yes. It is like that by design. It stops charging at around 95-98%. Its to prevent you from overcharging the battery.
Sent from my Nexus S using XDA App
This is a known issue. You can try and reset battery stats in cwm when your battery is charged and/or emptied. It works for some and not for others. I haven't noticed my battery lasting any less when my battery doesn't "charge" past 97%
There have been some discussion on this. I get about 97% myself. From what I've read you may get full charge if you let it drain all the way. I don't do that myself. Very happy with battery life as is.
I used to get 100% before I switched to the Vegan rom.
Sent from my G-Tablet running Vega-Nb5.1
Mrhorology said:
Is this normal. I did try and do a search in my defence.
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Either let it drain until it shuts off a few times and then charge it all the way up or if that doesn't work, use CWM to delete the battery stats when it's at 95% (full, with a GREEN light - not charging, with a red light) and then let it drain until it shuts off on it's own.
I did this a long time ago (delete the stats) and it's been perfect since. Charges to 100% and does indeed show battery at almost empty before it shuts off.
Good Luck.
Still no go here but it can get tom 96%... lol
I am sitting a 98% with VEGAn.
I am now having an issue where u can use the device, then I turn it off, and
turn it on the next morning and see about 5 to 10% of my battery was drained.
Confirmed Fix
Confirmed fix for me on Vegan 5.1. Letting battery drain down to zero and shutoff the tablet... reached 100% on next charge. Now the indicator charges to 100% every time.
tried this and still no luck . still get to 95-6% bugger
Vegan here..this is how I fixed it:
1) Drain it till it shuts off, try restarting it a few time to make sure its dead.
2) Once dead, plug it in, boot into clockworkx, and reset battery status (do this quickly)
3) restart, and leave plugged in idling till fully charged
4) use and enjoy a accurate battery level!!
-Red
Mrhorology said:
I am now having an issue where u can use the device, then I turn it off, and
turn it on the next morning and see about 5 to 10% of my battery was drained.
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You have to remember that in order to install some apps out there, you have to give them permission to use the internet and to interact with your device autonomously. I have found a few apps that were pulling my tablet out of sleep mode and turning on the wireless to download ads or other updates, and that (along with the length of time to shut back down) was affecting my battery life.
I would say to go back and review what you've installed, and to also check your screen timeout settings. Just doing that saved me quite a bit of overnight battery loss.
BigJohn
hello guys, well, i just installed the newest Virtuous unity ROM and after 2 hours it went from 94% to 38% with constant use (surfing in the web, downloading and installing apps from the newest market, inboxing in facebook,) all of this with WIFI and without turning the screen off. it was constantly, also i was at 85% brightness screen....
what do you think??? is that normal or not??
with your brightness that high its very likely.
cableguychad said:
with your brightness that high its very likely.
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well what brightness percent is good for you?
Yeah, I'm around 25-30% and that even drains it enough.
...and the fact that you used it constantly for 2 hours donwloading and stuff adds to it. go into settings --> about --> battery use/usage and whats teh biggest thing there. that'll tell you probably that your screen is killing your battery
also, right after flashing roms, your battery is not calibrated properly so thats' probably a factor. it takes a couple days to settle in properly
You probably need to reset your battery stats. Charge to %100, leave it plugged in, boot into recovery, reset battery stats under advanced options, and then reboot. Leave it plugged up long enough for the battery to realize it is fully charged or it will just shut down thinking it it dead. Once it shows charged again(usually takes about 1 minute) then remove from power supply and use it until it is dead and recharge. This will reset all battery stats.
Last night I left the house with about 40% left on my battery. By the time I went home, my Sensation was completely drained. This was within 3 hours, which should not drain it to 0%, especially since it was asleep most of the time.
When I got home and I plugged it in, I booted it up and surprisingly, it booted up with 42%. Before plugging in it had no power left, and the phone wouldn't boot at all. I wiped my battery stats yesterday morning too, after charging it to 100% for a few hours.
Seems like my battery stats are VERY wrong right now, and I just wiped it again after charging it to 100% and leaving it there for a while. Does anyone else have this problem? I know some people are having random stats popping up here and there, but this still had 30% juice left before it just died out. Never happened before. I was able to nearly fully drain it just 3 days ago too (100-5%).
Charge to full, wipe again, and drain to about 5%. Charge full and repeat. It usually takes a few cycles to correct battery stats.
Sdobron said:
Charge to full, wipe again, and drain to about 5%. Charge full and repeat. It usually takes a few cycles to correct battery stats.
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I'd also recommend this application from the market for battery calibration, although you need root.
ben_pyett said:
I'd also recommend this application from the market for battery calibration, although you need root.
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Alright, thanks, I'll try that. Hopefully it gives me an accurate reading
I just get my phone after a repair and I see a battery problem: when my phone is charging, about 82%, growth stops. If I shuts down my phone and I back on, it displays 100%.
does anyone know why and what to do about it ?
Thanks
Happened to me once, it was charging rather long than usually, stucked at around 80%, rebooted and it showed 100%. And it depleted normally.
Another time was after flashing a new rom, there was an issue so i rebooted while charging at around 80% as well, rebooted and it showed 100%, but it depleted rather fast from 100% to 90% so i knew it didnt "fully" charge. but charge it the next day and it was back to normal.
So imo it shouldnt be an issue. but hows your battery life?? does it depletes rather fast? U can try calibrating it with battery calibrater which can be downloaded from market. But i read that ds phones calibrates itself after each charge. so no worries there.
Happened to me as well
I avoid rebooting now (unless absolutely necessary) to see that happen again. Ignorance is bliss
I think it may be the battery starting to wear off ??
Sent from my HTC Desire S using XDA
I have the same issue,
I wipe battery stats in recovery and now it's no problem
Thank you for your answers.
Maybe my batery begins to die but i will try to wipe the battery stats and i will see.:good:
Title says it all... just restarted my phone to find the battery stats had dropped very significantly. thought it was a fluke so i went into recovery, deleted battery stats, and still the drop was present upon next restart.
not only that the other day i lost 30% overnight while it was powered off!!!
this is a fairly new anker battery.... it shouldnt go to crap overnight shouldt it? they have extremely high reviews!
this power drop during restart happened just after i had left the battery out of the phone all night!! Went in at the same power level as the night before, i used it some, restarted, and boom 22% missing...
just did another battery pull and it lost 3 more %. before this, this battery was perfect!! 1 random wakelock in about 6 months time. I dont get it. this is not a gradual degrading of battery, this is downright crap
Try calibrate the battery
Pawprints1986 said:
Title says it all... just restarted my phone to find the battery stats had dropped very significantly. thought it was a fluke so i went into recovery, deleted battery stats, and still the drop was present upon next restart.
not only that the other day i lost 30% overnight while it was powered off!!!
this is a fairly new anker battery.... it shouldnt go to crap overnight shouldt it? they have extremely high reviews!
this power drop during restart happened just after i had left the battery out of the phone all night!! Went in at the same power level as the night before, i used it some, restarted, and boom 22% missing...
just did another battery pull and it lost 3 more %. before this, this battery was perfect!! 1 random wakelock in about 6 months time. I dont get it. this is not a gradual degrading of battery, this is downright crap
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Should take a titanium backup of apps. Move that folder to ext sd card and factory reset the device.
Problem must go away
Sent from my SM-G355H using XDA Free mobile app
Pawprints1986 said:
Title says it all... just restarted my phone to find the battery stats had dropped very significantly. thought it was a fluke so i went into recovery, deleted battery stats, and still the drop was present upon next restart.
not only that the other day i lost 30% overnight while it was powered off!!!
this is a fairly new anker battery.... it shouldnt go to crap overnight shouldt it? they have extremely high reviews!
this power drop during restart happened just after i had left the battery out of the phone all night!! Went in at the same power level as the night before, i used it some, restarted, and boom 22% missing...
just did another battery pull and it lost 3 more %. before this, this battery was perfect!! 1 random wakelock in about 6 months time. I dont get it. this is not a gradual degrading of battery, this is downright crap
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Probably it was 22% lower the whole time but it was displaying incorrectly. Try calibrating the battery.
Already tried this... Just had it lose 30% again... A program froze and I had to manually restart (hold power button down), went from 60-33%... It was only frozen for about 30 seconds... This battery is only less than 6 months old. I just gave it a full drain until power off, and then a full uninterrupted charge while powered off like everywhere suggests.... And it's still messed.
What else could be wrong?!
With the initial restart it wasn't even a freeze, it was a restart from the power menu... Any battery app I have just reads from the phones main power meter, not it's own...
This is so frustrating...
Eta: why would a factory reset of software fix an external hardware problem? Plus I just reset a couple of months ago, it's really not that old and bogged down of a system....
Bad battery. Let it run all the way down to it dies. Then charge it all the way too 100 the. Turn on the phone and keep it on the charger for an hour and then run like you normally do and see that helps. I do this with all my phone and it works you should do it once a month to keep it healthy .
Have your battery tested to see if it is a bad one. Is it swollen at all even a lil bit?
pantherdaddy27 said:
Bad battery. Let it run all the way down to it dies. Then charge it all the way too 100 the. Turn on the phone and keep it on the charger for an hour and then run like you normally do and see that helps. I do this with all my phone and it works you should do it once a month to keep it healthy .
Have your battery tested to see if it is a bad one. Is it swollen at all even a lil bit?
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Wipe data/cache/dalvek cache amd flash stock rom again.
May be this helps
Sent from my LG-X160 using XDA Free mobile app