Database Develop

Two battery related questions

Ok first, it seems when I shut my screen off and its not doing anything, the battery seems to just drain. I'll be using it for like 10 minutes and maybe lose 1 or 2 percent of charge, but then I turn the phone back on, it lost like 8 percent. I don't get it.
Second, whenever I completely shut off my phone, it usually looses around 10% of power. Just now, I reset it and lost 20% of the charge. I mean wtf?
If anyone could help me out here and explain this that'd be great.
Sent from my HERO200 using XDA App

Go to menu, settings, about phone, battery, and click on battery use...what does it say? Also, you might want to cycle your battery a couple times to maximize the performance.

If all else fails recalibrate your battery.
http://forum.xda-developers.com/showpost.php?p=6399061&postcount=3546

Dave2582 said:
Go to menu, settings, about phone, battery, and click on battery use...what does it say? Also, you might want to cycle your battery a couple times to maximize the performance.
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Click to collapse
Display 42%
Cell Standby 35%
Wi-Fi 23%
That's it.
Sent from my HERO200 using XDA App

Sudden battery drain when at 10% and below

Recently I noticed sudden battery drain when 10% and below. It takes a couple of minutes while browsing or watching youtube battery goes down to 4% and then in a bout minutes goes down 1% and off. I am not sure when it started but my guess after JB 4.2 update. I am on three UK network.
Thanks

nebulaoperator said:
Recently I noticed sudden battery drain when 10% and below. It takes a couple of minutes while browsing or watching youtube battery goes down to 4% and then in a bout minutes goes down 1% and off. I am not sure when it started but my guess after JB 4.2 update. I am on three UK network.
Thanks
Click to expand...
Click to collapse
Don't know if it would help but you can try to calibrate the battery (actually the displaying of the percentage).
Charge your battery until it's full when the phone is on.
Disconnect it from charger.
Turn phone off.
Plug in charger and charge it until the LED turns green.
Disconnect charger, turn phone on and use it as usual (my desire needed a full discharging and charging cycle after that)
Sent from my HTC One

.vermilion said:
Don't know if it would help but you can try to calibrate the battery (actually the displaying of the percentage).
Charge your battery until it's full when the phone is on.
Disconnect it from charger.
Turn phone off.
Plug in charger and charge it until the LED turns green.
Disconnect charger, turn phone on and use it as usual (my desire needed a full discharging and charging cycle after that)
Sent from my HTC One
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That's what I was thinking battery display might be off the rails a bit.
I will do it on the next charge then. Other than that battery does great job. 24h+

I get this aswell, on android revolution 12. It goes from 8% down to 1% and bam my phone is off. Really annoying
Sent from my HTC One using xda app-developers app

lopuandroid said:
I get this aswell, on android revolution 12. It goes from 8% down to 1% and bam my phone is off. Really annoying
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This exact same thing happened to me earlier today (ARHD 12.1). Very annoying. Is it a rom thing, or a battery calibration deal..?

i cant be sure, but it happened to me one time, so i use and app from playstore to calibrate the battery, and now it is ok,

Mine does the same thing, but it quickly goes from 5% to 1%. I assumed this was a normal feature to prevent the battery from draining completely, which is something you usually don't want to let happen. If that's the case though, HTC should have taken that last 5% into consideration when calibrating the battery.
Sent from my Nexus 7 (2013) using XDA Premium

Same issues here
Sent from my HTC One using Tapatalk 2

I suggest you all should try that calibrating method and if that won't work, it's probably a defect of your phones
Sent from my HTC One

Has anyone else had any success at all with this
I'm running 4.3 GPE rom and I get excactly the same thing here, I don't think I had this before .... I've tried recalibrating the battery, doesn't make any difference, so frustrating.....

In your case I think it's just a calibration issue. I personally had the same issue with ARHD but it settled with 5-6 charging cycles.

S3 Mini Battery

Hello . This is my first post here. I am having a problem with my battery. i recently bought a new one with 1700mAh,is a compatible one. now the thing is i left my phone to fully charge but is charging only to 89% and stops. my guess is that the phone only see the 1500mAh and the rest of 200 cannot. is there any way to make the phone charge to 100%? Thanks in advance!

Nemo91 said:
Hello . This is my first post here. I am having a problem with my battery. i recently bought a new one with 1700mAh,is a compatible one. now the thing is i left my phone to fully charge but is charging only to 89% and stops. my guess is that the phone only see the 1500mAh and the rest of 200 cannot. is there any way to make the phone charge to 100%? Thanks in advance!
Click to expand...
Click to collapse
i too have a 1700mah battery from the Ace 2 and it works like a normal 1500mah battery would. the first time when i put it in i shut down my phone completely and left it charging for 16 hours (although it did have 50% out of the box). Another thing i learned is that it's better to charge Li-ion batteries when they are below 20%, because they have a limited charge cycle (about 300 charges i think) so when you charge it from 70% to 100% it counts as 1 charge. i used to charge my original battery like that and only lasted 7 months (then my phone restarted randomly, couldn't turn on when actually having more than 70% battery left (the indicator said the battery's dead, but when i pluged it into a charger and turned the phone on it had more than 70% left) !!

so is there any way to make the phone see the 1700mAh?

Nemo91 said:
so is there any way to make the phone see the 1700mAh?
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Does your new battery 3 or 4 contacts? The original batteries have 4 contacts. I think that by the fourth contact phone receives information about the charge, and if the new battery does not have that contact phone does not receive charge Information so it approximates.

what's your 1700mah battery brand and model ?

ivanZG said:
Does your new battery 3 or 4 contacts? The original batteries have 4 contacts. I think that by the fourth contact phone receives information about the charge, and if the new battery does not have that contact phone does not receive charge Information so it approximates.
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Click to collapse
the battery have 3 contacts same as the original. also the brand of the battery is Andida for samsung I8160 but is also compatible with my s3 mini.

ok i've got the same battery and the only advise i can give you is to charge the phone 16 hours non-stop and see what happens (better be turned off). that's what i did when i charged my battery for the 1st time.

Questions and help issues go in Q&A and help section
Thread moved
Thanks
FNSM

koragg97 said:
ok i've got the same battery and the only advise i can give you is to charge the phone 16 hours non-stop and see what happens (better be turned off). that's what i did when i charged my battery for the 1st time.
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after you charged the phone 16 hours non-stop does your battery shows 100% fully charged?

Nemo91 said:
after you charged the phone 16 hours non-stop does your battery shows 100% fully charged?
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Click to collapse
yes. when i turned on my phone it showed 100% (although it drops from 100 to 90 in like 5 mins with the phone just sitting there doing nothing at all)

koragg97 said:
yes. when i turned on my phone it showed 100% (although it drops from 100 to 90 in like 5 mins with the phone just sitting there doing nothing at all)
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you put the phone to charge off or on?

Nemo91 said:
you put the phone to charge off or on?
Click to expand...
Click to collapse
off

Nemo91 said:
you put the phone to charge off or on?
Click to expand...
Click to collapse
koragg97 said:
off
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Click to collapse
Try to calibrate it manually. Charge the battery to 100% then with a root explorer go to data/system & delete batterystats.bin file & then unplug the charger.

mauam said:
Try to calibrate it manually. Charge the battery to 100% then with a root explorer go to data/system & delete batterystats.bin file & then unplug the charger.
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Click to collapse
that might work too. what does the batterystats.bin file do?

Nemo91 said:
that might work too. what does the batterystats.bin file do?
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Click to collapse
I don't know, but I think it stores the battery statistics

191 52645545
ok phone is charging for about 11 hours until now. i will let it until tomorrow morning and i will come with a feedback. thanks all for your time.

Nemo91 said:
that might work too. what does the batterystats.bin file do?
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Click to collapse
I think that clearing the batterystats.bin file won't do anything, cause it just stores the info which is shown in the battery usage window in settings. And every time you charge your phone it generates a new batterystats.bin file. Not sure though
Sent from my GT-I8190 using XDA Premium 4 mobile app

koragg97 said:
yes. when i turned on my phone it showed 100% (although it drops from 100 to 90 in like 5 mins with the phone just sitting there doing nothing at all)
Click to expand...
Click to collapse
try wiping dalvik cache turn off your phone charge it for 5 minutes then turn on your phone & let it charge till 100% after that restart your phone

xAbsoLx said:
try wiping dalvik cache turn off your phone charge it for 5 minutes then turn on your phone & let it charge till 100% after that restart your phone
Click to expand...
Click to collapse
I did that and still from 100 to 90 in a few mins. I read somewhere that this is because all of the background apps but it still lasts a day with normal use (a little games, little browsing, a lot of listening to music and a few calls ) so it's no problem for me.
Sent from my GT-I8190 using XDA Premium 4 mobile app

Ok so in this morning,the phone was 100% and off. i open the phone and its 92% :laugh: 1 day is normal for this phone? with a little bit of games,web,talk and SMS?

[Q] Battery problem?

Hello,
I have an unlocked HTC One and I think I have some problems with the battery. For example, in the morning when I unplug it from charging and it's 100%, if I use it for like 5 minutes then the battery will drop by 6-7% and I don't think that's normal.
Then I was not at home today and I had like 19% and I decided to power it off. Then I turned it on after like 10 minutes, I had 7% left. I left it on for 10-15 minutes without using and it dropped to 2%. I turned it off again and then I turned it back on after like 5 minutes and it had 6%.
What is going on? Should I do a clean install of the software? I'm using ViperOne 6.2.1.
Thank you!

mpernea said:
Hello,
I have an unlocked HTC One and I think I have some problems with the battery. For example, in the morning when I unplug it from charging and it's 100%, if I use it for like 5 minutes then the battery will drop by 6-7% and I don't think that's normal.
Then I was not at home today and I had like 19% and I decided to power it off. Then I turned it on after like 10 minutes, I had 7% left. I left it on for 10-15 minutes without using and it dropped to 2%. I turned it off again and then I turned it back on after like 5 minutes and it had 6%.
What is going on? Should I do a clean install of the software? I'm using ViperOne 6.2.1.
Thank you!
Click to expand...
Click to collapse
might be some app that is draining your battery, to confirm with gsam battery monitor. Maybe a rom/kernel issue or a bad battery....

Alright so I've done what the guy advised here http://forum.xda-developers.com/showthread.php?t=2765655
Apparently it fixed some of the problems but I still fail to understand this thing: so last night I had 73% battery left. I turned off the phone and then turned it back on after 5 minutes, I had 68% battery left. Why is this?
Also, sometimes the battery level shown while the phone is on does not coincide with the battery level shown in Recovery TWRP. Why is that and what can be done about it?
Thank you!

There is no way to know precisely what proportion of total charge is in a battery, it can only be estimated. Temperature, current drain, and many other factors affect the estimate. I think you're expecting too much.

Phone dies at 5%....

So, this is a strange issue. When my phone dies, it will die when it says I have 5% of battery. Sometimes, it will die at a reported 4% instead. This randomly started one day. I got the 5% remaining notification, and suddenly, my phone shut down. Ever since, I can't get below 4%. I've tried to turn the phone on, but it acts like it is dead.
I'm not sure if it's just reporting the wrong percentage, or if it's actually dying early. I've tried flashing different ROMs, wiping everything, and no change. I've also used Battery Calibration to delete battery stats, with no change. I've had issues with other phones dying a little early, but battery calibration always fixed it, so I'm at a loss. Has anyone else experienced this? Is there anything I can try to fix it?

Definitely have this issue too. Dies at 4% strangely enough. Thought it suppose to croak at 0% lol.
Sent from my Nexus 6 using XDA Free mobile app

Its just not reporting the percentage properly. MIne does it too.

The phone will shut off when the *voltage* drops below a certain threshold, regardless of what the actual "percent left" indicates.

doitright said:
The phone will shut off when the *voltage* drops below a certain threshold, regardless of what the actual "percent left" indicates.
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Click to collapse
Yep indeed.
There used to be tricks to get the % to show correctly but they weren't entirely good.

rootSU said:
Yep indeed.
There used to be tricks to get the % to show correctly but they weren't entirely good.
Click to expand...
Click to collapse
In theory, the percentage display is supposed to calibrate automatically to the voltages... however it should be noted that the battery's *minimum* voltage does need to be programmed in at some point in the process, since the shutoff voltage can NEVER vary. Most likely, the problem of shutting off at 4-5% is a matter of "feel good" battery levels, much like some lingerie stores will label items with the "next size down" or "next cupsize up" to make women feel smaller and bigger in the areas they want. It basically bumps the full scale percentage display by an average of 2.5% UP, which can lead some less observant users to viewing that as a slightly improved battery life. Most people will plug in before it hits 5%, so won't even notice this.

So, basically, that's just how it is? I've never had a phone that was so off. And I still don't understand why it went down to 0% or 1% the first few weeks I had it. It's not an issue, it's just strange.

mine shuts down at 3% every time

GoogleAndroid said:
So, basically, that's just how it is? I've never had a phone that was so off. And I still don't understand why it went down to 0% or 1% the first few weeks I had it. It's not an issue, it's just strange.
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my nexus 5 died after going to below 1%. every time. i have a hard time believing thats just how it is in this case. chalk it up to yet another lollipop bug i would say...

indianajonze said:
my nexus 5 died after going to below 1%. every time. i have a hard time believing thats just how it is in this case. chalk it up to yet another lollipop bug i would say...
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Click to collapse
My n5 shuts down at 1% every time on lollipop. Chalk it up as an n6 "bug" if there's chalking to be done.

I also have this issue and posted a similar thread about it a couple weeks ago. Given that any other device I've owned has been able to consistently reach 1% before shutting off, I think this is either a Lollipop bug or specific to Zthe Nexus 6.
I'm going to test it with my Nexus 9 and ask a buddy about his Moto X 2014 and report back.

Mine died at 9% sigh...

Download battery calibration app by nema from play store and calibrate your battery. Works for rooted devices only.
Sent from my GT-I9060 using XDA Free mobile app

ubuntu1306 said:
Download battery calibration app by nema from play store and calibrate your battery. Works for rooted devices only.
Sent from my GT-I9060 using XDA Free mobile app
Click to expand...
Click to collapse
I remember having used that app to try to squeeze more life out of my Galaxy Nexus back in the day. It hasn't been updated since 2011...

j.bruha said:
I remember having used that app to try to squeeze more life out of my Galaxy Nexus back in the day. It hasn't been updated since 2011...
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That's the funny thing though, because it never did that. It just aligned shut off with 0%

Happened to me once so far, hit 4% and it shut down unexpectedly. I chalked it up to the kernel at the time, as I had flashed a new one the night before.

Maybe it's intentional?
The Nexus 4 could sometimes be a real pain to reboot if you let it go completely dead. I suppose it's possible Motorola/Google are preventing complete depletion of the battery.
Sent from my Nexus 6

Spectre Nine said:
Maybe it's intentional?
The Nexus 4 could sometimes be a real pain to reboot if you let it go completely dead. I suppose it's possible Motorola/Google are preventing complete depletion of the battery.
Sent from my Nexus 6
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Complete depletion of the battery would literally lead to an explosion upon recharge. That's why all lithium based batteries have an additional 10 - 20% below the battery chip shutdown voltage.
Also a phone that shuts down at 5% is more likely to automatically shut down than one that shuts down at 0% as its a little more unpredictable.

now i have the opposite problem. my phone keeps charging after it hits 100%. i use current widget, and watch it when im charging. and current keeps coming in after its at 100%. it will depend, but sometimes it could still be charging for a half an hour after it hits 100%. but then again, it could stay at 100% for 30-60 minutes after i start using the phone on battery again :silly:

simms22 said:
now i have the opposite problem. my phone keeps charging after it hits 100%. i use current widget, and watch it when im charging. and current keeps coming in after its at 100%. it will depend, but sometimes it could still be charging for a half an hour after it hits 100%. but then again, it could stay at 100% for 30-60 minutes after i start using the phone on battery again :silly:
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I remember the battery calibration trick on Tue original HTC desire. Turn the phone off and charge to 100 then reboot and charge again. It got the % out of whack and gave a false perception that the battery lasted longer as it stayed at 100 for much longer than it should do.