Develop Bugs

Battery draining faster after calibration

I completely drained my battery from 100% until the phone shat off and then charged it to 100% again before calibrating the battery using the "battery monitor widget" app. After that, my battery seems to be draining even quickier than before. With the screen being at the top of the battery usage graph although my usage is the same as before.
Anyone else having that issue? I am rooted and running zedomax's kernel v2
Sent from my SPH-D710 using XDA Premium App

Sounds about right. Every time I've "calibrated" a battery this happens. Run it dead the first charge. Then give it a few days-to-a-week before making another judgement. So long as nothing happens to your battery stats and nothing extraordinary happens WRT charging/discharge you will then have (what I consider to be) a well calibrated battery. If you don't like the results, too bad. I consider them more accurate than the very rosy outlook you had before calibration.
Myself? I haven't been burned by the battery lying to me yet so I haven't bothered to calibrate. I only do that when I feel the meter is way off base...which is hard to tell since usage can vary so much from day to day. Only when it is glaringly obvious that something is awry do I do this...mostly 'cuz it takes so long to get things back to normal.
In summary, yeah...sounds about right. Don't panic and just use it normally if you want an accurate meter, whether you like the truth or not I think you'd prefer the truth.

miguelrodas said:
I completely drained my battery from 100% until the phone shat off and then charged it to 100% again before calibrating the battery using the "battery monitor widget" app. After that, my battery seems to be draining even quickier than before. With the screen being at the top of the battery usage graph although my usage is the same as before.
Anyone else having that issue? I am rooted and running zedomax's kernel v2
Sent from my SPH-D710 using XDA Premium App
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Click to collapse
Your battery behavior sounds to be normal.
You should be getting about 1% battery drain per hour when screens is off.
You should be getting about 1% per 2-3 minutes of screen on time, depending on usage.
Evo4g and Evo3d were getting about 1% per 2 minutes of usage.
This phone isn't that much different.

When it dies after calibration, you should charge it to 100% without break.
Following calibration, batteries still take a little time to settle. Give it a week or two and you'll see its true discharging rates.
Also, I've never heard of that app. Use the Battery Calibration from Ne'ma.
Transmission sent from a Galaxy S II.

Pheno.menon said:
When it dies after calibration, you should charge it to 100% without break.
Following calibration, batteries still take a little time to settle. Give it a week or two and you'll see its true discharging rates.
Also, I've never heard of that app. Use the Battery Calibration from Ne'ma.
Transmission sent from a Galaxy S II.
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Click to collapse
Battery Calibration by Ne'ma works well for me. The above posts sound right give the a few cycles to settle in.
Sent from my SPH-D700 using xda premium

Why does Phone Idle use so much power even though Nexus is in Flight more

My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?

TSGM said:
My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?
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Click to collapse
Could be an app/process waking the phone. For more advanced battery usage troubleshooting, try an app like BetterBatteryStats.

Petrovski80 said:
Could be an app/process waking the phone. For more advanced battery usage troubleshooting, try an app like BetterBatteryStats.
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Click to collapse
Could very well be this! I installed Google Wallet yesterday and I did notice some drain from this app. Better battery stats tells me it's contributed to 2 hours! I'm going to force close and wipe the apps data.
Sent from my Galaxy Nexus using xda app-developers app

TSGM said:
My Nexus is currently at 50% battery life. Of the 50% that went by, the two highest contributers are screen on (50%) and phone idle (20%). All this time, the phone has been on airplane more (with wifi). Why is phone idle so high?
Click to expand...
Click to collapse
Phone idle is so high because your phone hasn't otherwise used any power. Even just sitting around is going to use some juice, hence the high percentage attributed to idle. Since you haven't really used it, other processes shouldn't have consumed as much.
Look at it in perspective. Your battery stats are going to tally up to 100%, or reasonably close. If absolutely nothing else at all consumed any power whatsoever, phone idle would show 100%.
Sent from my Galaxy Nexus using Tapatalk 2

najaboy said:
Phone idle is so high because your phone hasn't otherwise used any power. Even just sitting around is going to use some juice, hence the high percentage attributed to idle. Since you haven't really used it, other processes shouldn't have consumed as much.
Look at it in perspective. Your battery stats are going to tally up to 100%, or reasonably close. If absolutely nothing else at all consumed any power whatsoever, phone idle would show 100%.
Sent from my Galaxy Nexus using Tapatalk 2
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Exactly this!
If you feel that the phone gets more battery life, you shouldn't worry. It's normal.
If you feel that the phone consumes more battery (Hence lower battery life), then check betterbatterystat or CPUspy, just in case it the phone isn't getting those deep sleeps.

Solution for battery problems

after talking to lg and rogers i found a way to fix my battery bug or what ever it was........
Issue: weak battery-very bad battery life-needed to charge twice a day on normal usage. Lg and rogers both said its a hardware issue and need to be replaced......(IT WASNT)
Solution few easy steps should fix it:
1. Let your battery die to 0%. It drives down by 2%. Turn it on, it will let you turn it back on and shots automaticly back down. do it a few times till it shows0%!!
2. Plug it into your charger and let it charge to 100%.
right now its 2 pm i started using the phone at 9 am haevy!! besides that is my s3 that i used half as much today. Battery life on the optimus G is 60% and on the S3 55%. Battery life of the LG seem to went to normal. they claim its 40% better then on the s3. im trying tomorow on eco mode see if there is a difference.
PS: sorry for my english im italian live in canada and grew up in germany haha

I'm not so sure this is a good thing to do. I've read that you should never allow a Li-Po battery to drain completely because it physically damages it.
Then again, it's hard to find credible information on the subject.
Edit: Wikipedia cites the following article which states that overdischarging will damage the battery: http://www.powerstream.com/li.htm

xxbeanxx said:
I'm not so sure this is a good thing to do. I've read that you should never allow a Li-Po battery to drain completely because it physically damages it.
Then again, it's hard to find credible information on the subject.
Edit: Wikipedia cites the following article which states that overdischarging will damage the battery: http://www.powerstream.com/li.htm
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Damage is when you leave battery discharged for some time, short period = almost 0. Of course there is little damage by doing this but no more than frying your phone at 100% Sorry for my english..

Fixed mine tho my battery life is crazy long now
Sent from my LG-E971 using xda app-developers app

It calls the placebo effect.
Li-polymer batteries calibrated on factory and they absolutely dont like deep discharging.
By the way LG promised 800 cycles of charging before the battery will start dying. I think in case of full discharge, the amount of cycles will be greatly reduced.

I have provisioned my battery which means going from full charge to 0 three to 4 times when I first got it and I always get a full day with medium use now.
Sent from my LG-E973 using xda app-developers app

I'm wondering, if this provisioning is so helpful for a battery, why wouldn't they do it at the factory?

After reading your guys' posts I decided to do a bit of a test.. I ran my phone all the way down from 100 to 0.. phone turned off.
Then, I turned my phone on about 5 times which then would immediately shut off onve booted to the os.
Then, I turned the phone on and placed it in the recovery mode.. doing this ensured that the screen stayed on until the phone was indeed drained entirely.
Then I charged it up till 100% before I went to bed, turned airplane mode on, closed the screen and went to bed.
Wake up this morning and looked to see how much battery drain occurred during sleep.
After about 5 minutes of using my phone it dropped down to 97%.. only lost 3% overnight. I was very pleased to see this as it confirms in my case that the phone is able to go into deep sleep.
I've also noticed that my battery seems to be draining slower than before.. before I could surf the web for ten minutes over wifi and lose a full 10% of battery.. so far today I've been on the web, downloading email, messing with some apps for around an hour or so and I'm currently at 86%.. definite improvement I believe.
And FYI this is with eco mode off, screen at 50% brightness, no gps and sync on sparingly. This is also on the latest update (my phone is on bell)

scoobydooby said:
After reading your guys' posts I decided to do a bit of a test.. I ran my phone all the way down from 100 to 0.. phone turned off.
Then, I turned my phone on about 5 times which then would immediately shut off onve booted to the os.
Then, I turned the phone on and placed it in the recovery mode.. doing this ensured that the screen stayed on until the phone was indeed drained entirely.
Then I charged it up till 100% before I went to bed, turned airplane mode on, closed the screen and went to bed.
Wake up this morning and looked to see how much battery drain occurred during sleep.
After about 5 minutes of using my phone it dropped down to 97%.. only lost 3% overnight. I was very pleased to see this as it confirms in my case that the phone is able to go into deep sleep.
I've also noticed that my battery seems to be draining slower than before.. before I could surf the web for ten minutes over wifi and lose a full 10% of battery.. so far today I've been on the web, downloading email, messing with some apps for around an hour or so and I'm currently at 86%.. definite improvement I believe.
And FYI this is with eco mode off, screen at 50% brightness, no gps and sync on sparingly. This is also on the latest update (my phone is on bell)
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I'd be really tempted to try this, but I've heard so much from so many credible sources that total drain on Li-ion is bad news. Conflicted

ionian2 said:
I'd be really tempted to try this, but I've heard so much from so many credible sources that total drain on Li-ion is bad news. Conflicted
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It's bad to constantly cycle it full to empty. A full cycle once in a while is fine and on some devices it's necessary to calibrate the battery. Additionally, it's not good to store the battery empty. There's no harm in letting it drain all the way occasionally although killing it then further killing it in recovery is probably overkill.
Sent from my LG-E973 using xda app-developers app

Indeed, I only did it in the hopes that it would help to recalibrate the battery.. I recently was forced to run a flash back to the original firmware using the kbz method.. I was able to bring back to stock but noticed afterward that my battery life did not seem anywhere near as good as it was prior.
It could be that the kbz I flashed to was the newest updated version and it just isn't as good with the battery life but I felt it was worth trying draining all the way to see if it would help.. it does seem to have helped a bit though my battery still shows that android system keeps awake for 4+hours which is odd..
Anyway, once in a while I don't see it being a big deal.

If anyone is going to attempt the things mentioned here, why not do us all a favor and post some actual numbers from Better Battery Stats (a before and after) for some real analysis.
I'm not implying that anyone is lying, but it is just too easy to perceive an improvement when that is what one is expecting.
The plural of anecdote is not data.

dpvu said:
It's bad to constantly cycle it full to empty. A full cycle once in a while is fine and on some devices it's necessary to calibrate the battery. Additionally, it's not good to store the battery empty. There's no harm in letting it drain all the way occasionally although killing it then further killing it in recovery is probably overkill.
Sent from my LG-E973 using xda app-developers app
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according to my experience, the original one is the best

[Q] Battery Drain Over Night

When I had my Note 1, for some reason over night it would drain like 50% of the battery, no idea why so I sold it. When I has my iPhone the most it ever drained over night was about 5%, 4 and 5. Last night my Note 2 drained about 12%, the only App open was the Alarm.
I know 12% isn't anything major, but with the problems I had with the Note 1 I just don't want to wake up have been fully charged the night before and then have to charge in order to even use it the next day. I need an alarm set or I won't wake up to go to work.
What is the best way to keep battery life over night but still have an alarm set?

craiigman said:
When I had my Note 1, for some reason over night it would drain like 50% of the battery, no idea why so I sold it. When I has my iPhone the most it ever drained over night was about 5%, 4 and 5. Last night my Note 2 drained about 12%, the only App open was the Alarm.
I know 12% isn't anything major, but with the problems I had with the Note 1 I just don't want to wake up have been fully charged the night before and then have to charge in order to even use it the next day. I need an alarm set or I won't wake up to go to work.
What is the best way to keep battery life over night but still have an alarm set?
Click to expand...
Click to collapse
Install betterbatterystats from playstore to keep a check on Battery hogging useless apps.
YOu dont need to keep the Alarm open in the background exclusively. When you set an alarm,it would be there untill you disable it manually.
12% overnight is a bit more than normal. For a 6-7 hours, battery drain should not be more than 5-6% when the screen is off and phone goes into Deep Sleep mode.

Why not just charge it over night so that you always wake up with 100% :S

kylec said:
Why not just charge it over night so that you always wake up with 100% :S
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Click to collapse
Cause the charge cable is short and doesn't reach to a sensible spot for me to be able to quickly turn the alarm off before it wakes the rest of the house up!
I'll do a few more test runs before I install any battery apps, from what I have seen so far most apps actually mess up the battery for me. That Battery Widget Reborn on my Nexus 7 takes the charge time from about 2-3 hours to 7-8. And one's I've used in the past actually drain it quicker.

craiigman said:
When I had my Note 1, for some reason over night it would drain like 50% of the battery, no idea why so I sold it. When I has my iPhone the most it ever drained over night was about 5%, 4 and 5. Last night my Note 2 drained about 12%, the only App open was the Alarm.
I know 12% isn't anything major, but with the problems I had with the Note 1 I just don't want to wake up have been fully charged the night before and then have to charge in order to even use it the next day. I need an alarm set or I won't wake up to go to work.
What is the best way to keep battery life over night but still have an alarm set?
Click to expand...
Click to collapse
Woah...never experienced that mate..did you turn off wifi?? For me 5 hours of sleep will only decrease 1 -2 %... stock rom dll7... check your apps in the background
Sent from Godfather Gt-N7100
A TRIANGLE AWAY will make your WARRANTY stay
Hit thanks if you love your phone =)

Ah that's a fair reason
I left mine off charge over night so I could compare. I left everything on as per my usual day (WiFi, GPS, auto sync) and had an alarm set.
I lost about 12% as well
Sent from my GT-N7100 using xda premium

Betterbatterystats is not an "battery" app. Is an app the monitors your phone and reports misbehaving apps or partial and kernel wakelocks.
It has nothing to do with increasing battery charge time.
Search it.
Sent from my GT-N7100 using xda premium

kylec said:
Ah that's a fair reason
I left mine off charge over night so I could compare. I left everything on as per my usual day (WiFi, GPS, auto sync) and had an alarm set.
I lost about 12% as well
Sent from my GT-N7100 using xda premium
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Click to collapse
Thanks for doing that I turned my GPS off last night and results were a lot better. But awesome of you to try that
mariosraptor said:
Betterbatterystats is not an "battery" app. Is an app the monitors your phone and reports misbehaving apps or partial and kernel wakelocks.
It has nothing to do with increasing battery charge time.
Search it.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
May have to give it a go if the problem persists, but for 10% battery it's not major. But thanks for clearing that up!

The only thing that you need to do is turn off data connections and wifi. This way I lose 1-2% battery life over night.

Well Android's ecosystem is made in this way. Literally you can't do anything. If an app or a couple of apps think that they need to run at a certain time, then they WILL run, it's as simple as that. No app is there to stop it, but yes some apps are there to make it worse, so stay away from them. One night you will notice 5% drain, the other night 10%, with same exact settings.
Still try to turn off Data/3G at night, if you don't need it. And get used with it
Swyped from my GT-N7100

jujuburi said:
Well Android's ecosystem is made in this way. Literally you can't do anything. If an app or a couple of apps think that they need to run at a certain time, then they WILL run, it's as simple as that. No app is there to stop it, but yes some apps are there to make it worse, so stay away from them. One night you will notice 5% drain, the other night 10%, with same exact settings.
Still try to turn off Data/3G at night, if you don't need it. And get used with it
Swyped from my GT-N7100
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+1 :good:

S3 Battery Drain

Hi, I had my galaxy S3 from Rogers for almost 1 year and the battery drains like crazy!! When I first got the phone the battery life was ok. It lasted 1 full day (with the settings auto brightness, wifi usually on [when not in wifi area, using LTE], vibrate only, power saving on and snyc on. I turned off gps, bluetooth, location services, and motion). About 6 months ago I dropped the phone in water :S and I got it repaired. The phone battery life was still about 1 full day (with the same setting as above except when I'm not in a wifi area I use 4G to save battery life). After that every month the battery life seems to get worse from 1 full day to about half a day :S. After doing alittle research (this was around May/June) I found out Facebook was killing my battery so I stop using it on my phone then my battery got better (to about 3/4 of a day). But after that in July and August the battery life got really really bad, it will probably only last 5-6hrs. I honestly don't know what is wrong with it now. Is the water damage the problem with my battery drainage?
I'm running 4.1.2, never rooted and I'm running Nova launcher too.

Get better battery stats or gsam battery monitor to rule out a rogue app(s) first...

Maybe the battery cells are dying out?

DMF1977 said:
Get better battery stats or gsam battery monitor to rule out a rogue app(s) first...
Click to expand...
Click to collapse
right know it seems to be the screen is draining my battery (I leave it on auto brightness)
diablo009 said:
Maybe the battery cells are dying out?
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Click to collapse
thats wat I was thinking too, maybe I should get a new battery?

jly660 said:
right know it seems to be the screen is draining my battery (I leave it on auto brightness)
thats wat I was thinking too, maybe I should get a new battery?
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Click to collapse
I leave mine on auto brightness too, I still get around 24 hours on a charge, and between 5 and 6 hours of screen on time. My phone is only about 3½ months old though... Could be the battery??

DMF1977 said:
I leave mine on auto brightness too, I still get around 24 hours on a charge, and between 5 and 6 hours of screen on time. My phone is only about 3½ months old though... Could be the battery??
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Click to collapse
that what I would assume too. maybe its time 2 get a new battery, thxs

I got my s3 in dec. It worled fine till now.
I am facing the same drain problem. No wakelocks active.... checked better battery stats. Phone is going in deep sleep.
My real problem is
Whenever I plug my charger and start watching a video song or movie. Charhe gets real slow. If I dont use my cell while charging, it charges fine.... dont know why is this so.
Sent from my SGH-I747M using xda premium

abhinavseth92 said:
I got my s3 in dec. It worled fine till now.
I am facing the same drain problem. No wakelocks active.... checked better battery stats. Phone is going in deep sleep.
My real problem is
Whenever I plug my charger and start watching a video song or movie. Charhe gets real slow. If I dont use my cell while charging, it charges fine.... dont know why is this so.
Sent from my SGH-I747M using xda premium
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Click to collapse
Is it the original charger that came with the phone? And are u charging it from the wall or pc??

Ya I am using the original charger and original cable.. using ac supply, with plugged in wall...
The thing is if I reset my device ( which I have done 2-3 times) and after that, watching video/playing games/ internet surfing etc. With the charger plugged in, works fine... I mean it charges my phone battery fine. Battery is new. Checked its condition with battery monitor pro... it states its good.
But after a couple of months after resetting, I face the problem of slow charging, with my phone in use while plugged in... did a lot of search but didnt help out. Cleared dalvik and other cache.... nothing seems to be working.
Sent from my SGH-I747M using xda premium