Develop Bugs

Creepy battery drain: 100 to 0 in 1 hour!

Hey people. I am having the wiriest problem. So, i get a refurb evo, and it seems to be running great, so I root it. I flash myns 4, and then the ziggy kernel meant for that rom. I also flash a couple of the visual mods. Then, all of a sudden, i start having incredible battery drain. I am dropping more than 1 percent a minute! There is obviously something wrong here. I have data and 4g on, but controlled by ultimate juice. Other than that, nothing. I really want to be able to use my phone again, and this is pretty debilitating. Anybody have any ideas? Thanks.
Btw, my battery info has android systems and cell standby at the highest, even though I have had my phone mostly on idle. This is not normal, or even wird. This is plain old creepy. Where is all that power going? And more importantly, is it possibly causing permanent damage?

I don't suppose you flashed the rom with a full battery did you?
you have to have a full battery when you flash roms.
Sent from my PC36100 using XDA App

Sounds to me you got a crap refurbished phone. That kind of drain shouldn't happen under any circumstances.

Wow quick replys. I think I flashed the rom with pretty low battery. Could this be the problem? Can I just recharge to full and then wipe battery stats? Is it even truly full? I agree with the possibility of a crap refurb. My meter said 56 like 20 minutes ago. Now I have 4. Not good.

dkdude36 said:
Wow quick replys. I think I flashed the rom with pretty low battery. Could this be the problem? Can I just recharge to full and then wipe battery stats? Is it even truly full? I agree with the possibility of a crap refurb. My meter said 56 like 20 minutes ago. Now I have 4. Not good.
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I would definitely try charging then wiping battery stats first, but the battery drain issue could be the reason it was refurbished in the first place.

Just what I was thinking. The only problem is, how will I fill up the battery all the way? I know the kernel puts charging in a loop after a certain point, so isn't it impossible to go past my present 100 percent? Confusing stuff. Will send email to sprint and htc asking about it.

Ok before you flashed this ROM did you do a full wipe(cache, and Dalvik)? Even before you flashed did you make a nandbackup? Was the phone getting hot?
What I would do is if you have a nandbackup then do a factory reset/wipe cache, then wipe Dalvik then flash your old ROM. See if the probelm goes away. If it does then either the ROM you flashed, or the other stuff you installed fouled up something in the phone.

dkdude36 said:
Wow quick replys. I think I flashed the rom with pretty low battery. Could this be the problem? Can I just recharge to full and then wipe battery stats? Is it even truly full? I agree with the possibility of a crap refurb. My meter said 56 like 20 minutes ago. Now I have 4. Not good.
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turn the phone off then charge it til the light turns green. then unplug it and plug it back in. then wait til it turns green again. do that a few times to make sure it is full. then wipe your battery stats. then wait til your battery dies and the phone turns off. then while it's still off charge it til the light turns green. turn it back on and you're good to go. it takes a while but it's totally worth it
Sent from my PC36100 using XDA App

Jdog I have tried unplug and replug (not with wiping, I will try that) and charge for 8hours, unplug, turn off, charge for 1, unplug, turn on, wait 2 minutes, turn off, charge for snot her hour, both without success. I will do the wiping thing though. Kmf i did wipe well with Amon and make a backup. Will try a fresh rom install, wipe, restore, and even an unroot if I have to. Any more suggestions?

you gotta wipe battery stats. that's the important part
Sent from my PC36100 using XDA App

[SOLVED] Help needed after battery stats wipe

After wiping battery stats, my phone only comes up with 0% of battery... is there any fix? :'(

Wiping battery stats is completely useless, despite what other people may say. The batterystats.bin file is created new every time you charge (if i remember correct). Try letting it sit for a while, plug off the charger, reboot, something like that. It should come back itself.

muellersmattes said:
Wiping battery stats is completely useless, despite what other people may say. The batterystats.bin file is created new every time you charge (if i remember correct). Try letting it sit for a while, plug off the charger, reboot, something like that. It should come back itself.
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battery stats get wiped/reset after 90% of charging. (thanks erklat)
Sent from my HTC Desire

After 15 reboots it resetted, ty

jmcclue said:
battery stats get wiped/reset after 90% of charging. (thanks erklat)
Sent from my HTC Desire
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Wut?
Me like your yuno interpretation

erklat said:
Wut?
Me like your yuno interpretation
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it was u that i learned that the bat stats get wiped after like 90%
Sent from my HTC Desire

Is wiping battery stats in cwm still not recomended on gs3?

Is wiping battery stats still does more harm than good?
And is there no need to do battery calibration by charging all the way and wiping stats any more with these new phones/batteries?

lviv73 said:
Is wiping battery stats still does more harm than good?
And is there no need to do battery calibration by charging all the way and wiping stats any more with these new phones/batteries?
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I read somewhere that an actually Google Developer stated that Wiping Battery Stats does not in any way improve your Battery Life. I will try to find the source for that. As for calibration, if I am not mistaken, with the latest technology for phone batteries this is no longer necessary, but is still traditional practice for many people.

BrandonEnr7 said:
I read somewhere that an actually Google Developer stated that Wiping Battery Stats does not in any way improve your Battery Life. I will try to find the source for that. As for calibration, if I am not mistaken, with the latest technology for phone batteries this is no longer necessary, but is still traditional practice for many people.
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Yeah I read same thing.It stated that wiping battery stats damages battery life because stats keep track of how many charges battery has left and other things.
So wipe battery stats is only use full if I'm switching batteries?

lviv73 said:
Yeah I read same thing.It stated that wiping battery stats damages battery life because stats keep track of how many charges battery has left and other things.
So wipe battery stats is only use full if I'm switching batteries?
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Still don't wipe. There is no reason and it will automatically calibrate the battery if needed within a cycle or 2.
Sent from my SGH-I747 using Tapatalk 2

jiffy1080 said:
Still don't wipe. There is no reason and it will automatically calibrate the battery if needed within a cycle or 2.
Sent from my SGH-I747 using Tapatalk 2
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Why is it even there,in cwm?

jiffy1080 said:
Still don't wipe. There is no reason and it will automatically calibrate the battery if needed within a cycle or 2.
Sent from my SGH-I747 using Tapatalk 2
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Because at one point it was believe you had to do that in order to calibrate your battery. Plus when you flash a ROM you can wipe just to see what you get on the first day
Sent from my SPH-L710 using xda app-developers app

I used to wipe battery stats every time I tried a new ROM on my Epic, which for a while was weekly. I know that it quickly became a problem: the battery would never fully charge, the reported information was off by a wide margin (like saying I had 50% left but then two minutes later it shut off due to no battery left), etc. Since then I've never wiped battery stats just for fear of that happening again.
Maybe it would do no harm on a SIII... maybe I just had a bad device or battery or something back then... basically, I don't know for sure if wiping those stats was ever a real problem... but, I know I just won't do it now unless I know to a CERTAINTY it's something I NEED to do, just to be safe.

You know when you go settings battery and get that graph? Then you how that graph resets after every cycle? Every time the graph resets the battery stats are wiped
Edit: so what the guy posted above me doesn't make sense because android does it after every cycle
Sent from my SPH-L710 using xda app-developers app

fzammetti said:
I used to wipe battery stats every time I tried a new ROM on my Epic, which for a while was weekly. I know that it quickly became a problem: the battery would never fully charge, the reported information was off by a wide margin (like saying I had 50% left but then two minutes later it shut off due to no battery left), etc. Since then I've never wiped battery stats just for fear of that happening again.
Maybe it would do no harm on a SIII... maybe I just had a bad device or battery or something back then... basically, I don't know for sure if wiping those stats was ever a real problem... but, I know I just won't do it now unless I know to a CERTAINTY it's something I NEED to do, just to be safe.
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Had same problem on my Epic Touch.Phone would have 50 percent left and after reboot only 10.But I only wiped stats once of twice so I don't think it has anything to do with that.

jamcar said:
You know when you go settings battery and get that graph? Then you how that graph resets after every cycle? Every time the graph resets the battery stats are wiped
Edit: so what the guy posted above me doesn't make sense because android does it after every cycle
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Are you sure they're wiped every time? Are you sure there maybe isn't some cumulative stats that don't get wiped? Are you sure there isn't maybe some subset of the stats that get wiped while the rest don't (or vice-versa)?
I ask because I can't say I'm sure of that. I DO know that at least with the Epic what you describe CANNOT have been the case, otherwise any battery stat kinds of issues would have went away with a simple reboot and that just wasn't the case (and I know I was not alone in this by far). While I can completely believe that some aspect of battery stats get wiped with a reboot I have a hard time believing it's a simple as EVERYTHING getting wiped and that's that... unless this is something new with the GSIII or even ICS I suppose.

fzammetti said:
Are you sure they're wiped every time? Are you sure there maybe isn't some cumulative stats that don't get wiped? Are you sure there isn't maybe some subset of the stats that get wiped while the rest don't (or vice-versa)?
I ask because I can't say I'm sure of that. I DO know that at least with the Epic what you describe CANNOT have been the case, otherwise any battery stat kinds of issues would have went away with a simple reboot and that just wasn't the case (and I know I was not alone in this by far). While I can completely believe that some aspect of battery stats get wiped with a reboot I have a hard time believing it's a simple as EVERYTHING getting wiped and that's that... unless this is something new with the GSIII or even ICS I suppose.
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to quote a google engineer
This file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you. It has no impact on your battery life.
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-Diane Hackborn

Interesting. Ok, I'm sold Thanks for the info!

Interesting. I've been using the Battery Calibration app after flashing a new ROM every time.

clankfu said:
Interesting. I've been using the Battery Calibration app after flashing a new ROM every time.
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Well, good news. You don't have to anymore.

How can I fix this?

On my E4GT, this has happened on multiple roms and persists through wiping battery stats. Is my battery drops very fast, just 30% in ~20 minutes this morning listening to music. But then while it sits in my pocket, asleep, the battery crawls up from ~70 back up to ~90 over the course of a half-hour or so. How can I fix it or is my battery just starting to go? Also after a reboot the battery will drop like 30-40%, then slowly crawl back up.

Sounds like the battery is either on its way out (check for bulges) or just very poorly calibrated. One of my batteries did the slowly crawling up thing even when it was brand new.
Sent from my SPH-D710 using xda app-developers app

Beremat said:
Sounds like the battery is either on its way out (check for bulges) or just very poorly calibrated. One of my batteries did the slowly crawling up thing even when it was brand new.
Sent from my SPH-D710 using xda app-developers app
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Okay, well, since wiping battery stats did not help. I felt it and can't really tell if it's swelling, I think it may be a little. Is turning it off all the way, then charge without stopping the charge the only way to calibrate it?

piexil said:
Okay, well, since wiping battery stats did not help. I felt it and can't really tell if it's swelling, I think it may be a little. Is turning it off all the way, then charge without stopping the charge the only way to calibrate it?
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To check for swelling lay battery on table.. Spin.. (both sides) if it spins like a top.. It's bad. Easiest way to tell, and not an uncommon problem.

Wiping battery stats does nothing. This phone automatically wipes battery stats at 100% charge.
Sent from my SPH-D710 using xda premium

Always can change phone operator too.. Sometimes fixes the issue. :laugh:

piexil said:
On my E4GT, this has happened on multiple roms and persists through wiping battery stats. Is my battery drops very fast, just 30% in ~20 minutes this morning listening to music. But then while it sits in my pocket, asleep, the battery crawls up from ~70 back up to ~90 over the course of a half-hour or so. How can I fix it or is my battery just starting to go? Also after a reboot the battery will drop like 30-40%, then slowly crawl back up.
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This has to do with the way ICS reads you battery %. If it is going up on it's own then the % it tells you is just wrong. There is not much you can do to fix it except don't flash things all the time. It usually will happen when you are flashing things.
The battery being bad is also an option but I have never seen it go up on it's own when the battery is bad.

rujelus22 said:
This has to do with the way ICS reads you battery %. If it is going up on it's own then the % it tells you is just wrong. There is not much you can do to fix it except don't flash things all the time. It usually will happen when you are flashing things.
The battery being bad is also an option but I have never seen it go up on it's own when the battery is bad.
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Mine did it while it was swollen, it would drop way down real fast and then when it was on standby in my pocket "recharge" itself. Talk about weird put it in my pocket at 40% get a text check it and be at 70% like wtf do I have a charger in my pocket
Sent from my SPH-L710

-EViL-KoNCEPTz- said:
Mine did it while it was swollen, it would drop way down real fast and then when it was on standby in my pocket "recharge" itself. Talk about weird put it in my pocket at 40% get a text check it and be at 70% like wtf do I have a charger in my pocket
Sent from my SPH-L710
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Phone was just happy to see you evil.
Sent from my SPH-D710 using Tapatalk 2

[Q] Play shutting down sub 50% battery level

As title says, my battery gets below 50% & my play shuts down.
Sometimes 40%, sometimes 35%, today 50%.
Is there a fix or is it new battery time?
Running UK generic, latest update, rooted, B/L locked.

Have you tried recalibrating your battery?
Sent from my R800i using xda app-developers app

Clear battery stats. That should work.

I'd say either you'll need a new battery.
Clear battery stats. That should work.
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That does absolutely nothing. At all.

ridder215215 said:
I'd say either you'll need a new battery.
That does absolutely nothing. At all.
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Should, but might not work, give it a try won't cause World War 3 right?

You might have a bad battery. Battery life does degrade overtime though so it won't hurt to buy another spare.

jeff7424 said:
Clear battery stats. That should work.
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Done that, several times. At 0% & 100%, no dice.
Also tried re flashing but no joy.
I'm going for bad battery.
My fault really I suppose.
Had Play since launch & generally sits on charge at home or work regardless of the battery level.
Never really powered down for a full charge & odds on I didn't give a full charge on purchase.

jeff7424 said:
Should, but might not work, give it a try won't cause World War 3 right?
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I guess not, but I'm just saying it's a waste of time