Database Users

[TIP] Battery Life and Calibration

Hey guys,
I'm sure most of you know about the Battery Calibration app on the market.
For most of you, calibrating at 100% charge should significantly increase battery life.
After playing around, it seems that the phone can't seem to "keep" a sustained "track record" in battery life over the days and repeated charging.
Once calibrated the first time, battery life seems to be exceptional. Allowing the phone to die and charging again without calibration seems to degrade the battery life yet again. It's definitely something with the batterystats file.
Also, once calibrated, if your phone is charged (lets say from 25%) to give yourself some extra juice, and you do not hit 100%, remaining battery life seems to suffer.
I've repeated this multiple times as well. Last night, I charged from 25% to 54% and my phone couldn't keep a good charge and dropped to 19% with light usage in about 2 hours.
The Point: Calibrate your battery every time you hit a 100% charge. (For me, each morning). By doing this, I've went from 6-8hrs of total battery time to about 22-30hrs.
I've even managed to squeeze out 2.5hrs of display time as well.
Maybe the dev of the app should add an automated scheduling feature, or one that calibrates every time the device hits 100%.
Hope this helps!

Im going to try this, charge is at 80% so i'll throw it on charger, and then calibrate at 100. I hate how the battery in this phone is so sporadic, i've only gotten 30 hours out of it once. and never again.

Do u sure it affects a lot?
Swyped from MB860

alistair3149 said:
Do u sure it affects a lot?
Swyped from MB860
Click to expand...
Click to collapse
Made a huge difference for me, give it a shot.

charged to 100% and then calibrated the battery, i will update you on how it fairs, and what kind of usage i do. I usually am pretty low on battery by the time im on my way home in about 6 hours.

alistair3149 said:
Do u sure it affects a lot?
Swyped from MB860
Click to expand...
Click to collapse
It varies for everyone; hence "calibration". This gives people the battery life they should be getting.

This usually only makes a (or I should say the most) difference with freshly factory reset phones, or right after flashing a custom rom.

binary110 said:
charged to 100% and then calibrated the battery, i will update you on how it fairs, and what kind of usage i do. I usually am pretty low on battery by the time im on my way home in about 6 hours.
Click to expand...
Click to collapse
Nice, let us know how it goes.
Sent from my MB860 using XDA Premium App

1 hr 50 minutes unplugged so far,
15m 7s display @ 26%
3m 9s Voice calls @ 18%
idle @ 15%
wifi 9%
SYStem 8%
standby is 7%
com.motorola.service.main 4%
launcherpro 4%
android OS 3%
Email 2%
Only down 10% battery. normally im down roughly 10%/hr when ive so much as used voice/email.

I agree with the OP... This seems like a much safer way to keep the battery accurate, etc. I was told a while ago that the Battery calibration app doesn't work right on the atrix, so I was told to manually wipe the stats in CWM, then let the phone die and then recharge to 100%...BAD idea. Battery seemed completely fried after this, only about 1/4 as long as it did before.
I think the app does work, and it's much safer. I don't really recommend ever letting the phone die though, after what happened to me. Could have been a freak accident, but not taking that risk again!

28h 30m, 46% battery left.
2h display
30m talking
30m plants vs zombies
All I've ever done is charge phone to 100% first charge, let it completely die, and then only charge to 100% at night, with occasional car charger use.
I wouldn't suggest completely decharging battery regularly, it deteriorates lithium ion batteries faster
Sent from my MB860 using XDA App

I never let mine die completely either. Ill usually put it up to charge at night once it hits about 20% or so. Calibrating once in the morning seems to get me through the day pretty well.
Sent from my MB860 using XDA Premium App

80% battery remaining. 5hr 2m 5s since unplugging.
32% - Display 53m 0s (rare for an even number)
14% voice calls 7m 2s
13% idle - 4h 9m 7s
8% wifi - 4h 52m 5s
7% android system.
6% cell standby
5% swype
3% android os
3% maps
2% com.motorola.service.main
2% LauncherPro
This is definitely better than usual. 2 hours in, i was at 80%. now after 5 hours, im at 80%...
On a side note, The phone hasnt gotten hot in my pocket like it usually does today as well.

silentecho13 said:
I never let mine die completely either. Ill usually put it up to charge at night once it hits about 20% or so. Calibrating once in the morning seems to get me through the day pretty well.
Sent from my MB860 using XDA Premium App
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Click to collapse
How long have you had your phone? Mine really didn't start performing well until I had had it for 3 weeks or so. I did a flash to the 1.83 SBF (at 100% battery - equal to a recalibration) and haven't shut it off in like 10 days. No recalibration and I can get at least 18 hours of use (with like 4-5 hours of screen time).
tl;dr - I don't think you need to recalibrate all the time

How do you figure the 100%, since the battery goes from 90 to 100.
Do you just let the battery calibration app beep when it measures 100%?
Thanks.

Which battery calibration app did you download?
Sent from my MB860 using XDA Premium App

I used this app:
http://market.android.com/details?id=com.nema.batterycalibration
As for my phone, I've had it since launch day on at&t.
Another thing to mention: add a screen-off profile using setcpu as well, definitely helps.
Sent from my MB860 using XDA Premium App

charlyee said:
How do you figure the 100%, since the battery goes from 90 to 100.
Do you just let the battery calibration app beep when it measures 100%?
Thanks.
Click to expand...
Click to collapse
Yes, the app will notify you when your phone is at 100%, as well as the text reading "charged" on the lockscreen.
Sent from my MB860 using XDA Premium App

Funny, i was just about to post in an older battery thread about similar issues as the op. Ill give this a shot
Sent from my MB860 using Tapatalk

BBock9 said:
Funny, i was just about to post in an older battery thread about similar issues as the op. Ill give this a shot
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
Let us know how it goes!
Sent from my MB860 using XDA Premium App

Atrix not charging past 88%

As of Saturday evening, my phone will no longer charge past 88%. Earlier on Saturday, the phone was charged to 100% in my car. We lost power and the phone ran down to 3% before I was able to charge it again.
After charging over 8 hours, the phone would not go past 88%. Any ideas?

MacAlert said:
As of Saturday evening, my phone will no longer charge past 88%. Earlier on Saturday, the phone was charged to 100% in my car. We lost power and the phone ran down to 3% before I was able to charge it again.
After charging over 8 hours, the phone would not go past 88%. Any ideas?
Click to expand...
Click to collapse
Have you tried to recalibrate the battery? Try this.
http://forum.xda-developers.com/showthread.php?p=16240746
Sent from my Atrix XDA Premium App

Voelker45 said:
Have you tried to recalibrate the battery? Try this.
http://forum.xda-developers.com/showthread.php?p=16240746
Sent from my Atrix XDA Premium App
Click to expand...
Click to collapse
I have not tried that. Weird thing is, the battery calibration app reads 4196mV at 70% while charging and ~4200 while at 88%.

Just go to CWM recovery and wipe battery stats. Do a few charge recharge cycle. It should be OK.
Sent from my MB860 using Tapatalk

anupash said:
Just go to CWM recovery and wipe battery stats. Do a few charge recharge cycle. It should be OK.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
Yup wiping the battery stats in cwm will do the trick
Sent from my MB860 using xda premium

Charge to 88% or until you notice it not going any further. Turn off the phone. Plug in the charger and wait until the battery display shows. While the phone is still plugged in, remove the battery. Wait for it to boot up and show a no battery icon (or something like that). Once it does, put the battery back in and leave it for about 30 mins. When you hit the volume buttons, the display will show between 5-10% charged. Anyway, after about 30 mins, turn the phone one and it should show 100%. Re-calibrate the battery after that using the app or recovery.

Are all android batteries like this? I've never had a device with such finicky battery stats. I too have the 88% problem and i feel like im recalibrating every week. I will try again.

s1mpd1ddy said:
Are all android batteries like this? I've never had a device with such finicky battery stats. I too have the 88% problem and i feel like im recalibrating every week. I will try again.
Click to expand...
Click to collapse
I don't think they're all like this..but I know its as annoying as F***. Every morning almost i'm doing the "battery pop out" trick just so that it'll read full. It would be different if it read 95% or something and stuck there for awhile until the battery caught up to the actual reading..but it doesn't. The battery continues to drain at a normal rate, so you basically lose however many % you had initially.
Definately annoying..

Rickroller said:
I don't think they're all like this..but I know its as annoying as F***. Every morning almost i'm doing the "battery pop out" trick just so that it'll read full. It would be different if it read 95% or something and stuck there for awhile until the battery caught up to the actual reading..but it doesn't. The battery continues to drain at a normal rate, so you basically lose however many % you had initially.
Definately annoying..
Click to expand...
Click to collapse
so you're having to do the pop-out trick every day? that's definitely not something you should have to do....... what gives with our battery?

Mine did this before and what I did was run it all the way to 0% and it cuts of and will not start, then charge it to 100% with the power off and and then boot it up. Work like a charm for me.

lilhaiti said:
Mine did this before and what I did was run it all the way to 0% and it cuts of and will not start, then charge it to 100% with the power off and and then boot it up. Work like a charm for me.
Click to expand...
Click to collapse
Same, friends atrix wouldn't get past 86%, calibration app didn't work and neither did wiping bat stats. Draining however did fix but damn was it slow. 6+ hours to reach 100%
Sent from my GT-I9100 using xda premium

ChongoDroid said:
Same, friends atrix wouldn't get past 86%, calibration app didn't work and neither did wiping bat stats. Draining however did fix but damn was it slow. 6+ hours to reach 100%
Sent from my GT-I9100 using xda premium
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Click to collapse
do you have the same battery issues on your galaxy?

So I've been sitting at 1% for the past hour. Been playing games, have wifi, bluetooth, GPS all turned on.
Thing will just not turn off!
EDIT: Right as soon as I post this, it turns off. Over 1 hour on 1%.
Will recharge tonight and hopefully it works right.

I had this problem for a while but you should know that it will fix itself eventually. The phone is fully capable of re-learning the limits of the battery and after several days will begin to display the correct charging status. Mine took about a week to start displaying 99% in the morning.
This happened after I did the complete discharge, charge, pull battery, charge again, then boot procedure. It was fine for a couple of days then started displaying 82% as a full charge then slowly got better. I'm fairly confident that I'm not leaving anything on the table in terms of capacity either since with moderate use and turning off wifi when I leave the house I'm getting about two days of charge.

Sounds like a jumping battery problem to me.
1. Click on this link: http://forum.xda-developers.com/showthread.php?t=1174349&highlight=battery+fix
2. Download juggernault's jumping battery fix.
3. Follow the instructions there
4. if it solves your problem, thank the dude for his contribution to the Atrix community and also leave him a comment to thank him.

heres what you need to do
http://www.youtube.com/watch?v=g2ehvLLmEIg

Already have juggernaults battery fix applied. Thinking this is just some freak occurrence.
EDIT: Drained the battery at work. Charged since 6:30 while powered off and phone charged past 88%. All is well in Atrixland!

MacAlert said:
Already have juggernaults battery fix applied. Thinking this is just some freak occurrence.
EDIT: Drained the battery at work. Charged since 6:30 while powered off and phone charged past 88%. All is well in Atrixland!
Click to expand...
Click to collapse
Not a freak occurrence. Happens to me too all the time.. makes me not wanna flash anything . I jump charged my phone to 100 today. Did battery pull, wiped stats and calibrated
Sent from my CM7 Atrix

s1mpd1ddy said:
do you have the same battery issues on your galaxy?
Click to expand...
Click to collapse
No none, I had battery drain but it was kernel related. I get a days worth of heavy usage out of mine now.
Sent from my GT-I9100 using xda premium

Figured I'd follow up. After doing all this ... first recharge went to 98. Second recharge overnight.. 85 Max. WTF
Sent from my CM7 Atrix

[HELP] Big battery drain. 1 hour battery life

Ok I lied, it's not one hour backup, it's 50 min battery backup. I charged my phone to 100% 4163mv and played about 2 songs, battery dropped to 47 and then suddenly 0%. It all happened in less than 50 min. Just when I was thinking, it can't be more worse. I charged and battery was 99% :O. Another time, phone shut down at 40%, when charged moved up to 70% and number started increasing every 3 seconds. I did calibrated it many times so that's out of question. I bought this phone in May so I will be surprised if battery is defective. I'm confused. Please help!!
Sent from my GT-I5800 using xda premium

friend863 said:
Ok I lied, it's not one hour backup, it's 50 min battery backup. I charged my phone to 100% 4163mv and played about 2 songs, battery dropped to 47 and then suddenly 0%. It all happened in less than 50 min. Just when I was thinking, it can't be more worse. I charged and battery was 99% :O. Another time, phone shut down at 40%, when charged moved up to 70% and number started increasing every 3 seconds. I did calibrated it many times so that's out of question. I bought this phone in May so I will be surprised if battery is defective. I'm confused. Please help!!
Sent from my GT-I5800 using xda premium
Click to expand...
Click to collapse
charge till you get"unplug your charger " message

I did, many times too.
Sent from my GT-I5800 using xda premium

friend863 said:
I did, many times too.
Sent from my GT-I5800 using xda premium
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Click to collapse
Time for a new battery bro...
Same thing happened with me....
On a side note : Does the back cover of your phone fit?
Cause when I had this problem my battery had literally expanded in size.... :X
Due to which the back cover did not fit perfectly.......

Yeah, it fits perfectly..
Sent from my GT-I5800 using xda premium

Download from market app called Battery Calibration.
Open it and connect your phone to the charger. When you have 100% status, and ~4200mV click Calibrate and unplug your charger.
Then set the LCD Brightness to max, set timeout to never sleep or just use your phone to fast discharge it(that doesn't need to be fast and doesn't need to be slow it just need drop to 0%).
Let it automatically die because of low power, and then charge it to 100%(you can use battery calibration app to see the voltage, around 4.2V it's max).
After that your phone should have a much better battery life.

JoHnNy08PL said:
Download from market app called Battery Calibration.
Open it and connect your phone to the charger. When you have 100% status, and ~4200mV click Calibrate and unplug your charger.
Then set the LCD Brightness to max, set timeout to never sleep or just use your phone to fast discharge it(that doesn't need to be fast and doesn't need to be slow it just need drop to 0%).
Let it automatically die because of low power, and then charge it to 100%(you can use battery calibration app to see the voltage, around 4.2V it's max).
After that your phone should have a much better battery life.
Click to expand...
Click to collapse
He already said, he did calibrate the battery....
I 100% think you need a new battery Mate....

Try installing any stock rom before. Maybe that can help. I was getting ultra fast battery drains when I flashed indroid 5.0
Sent from my GT-I5800 using xda premium

Yes u need a change of batt. I had not even up to half an hour of wifi surfing. After changing i could use the phone for 30+hrs
Sent from my i9003 powered by Poseidon's Rom + UC kernel

Change the Battery.. I had the same problem.. then found out my battery got swollen big time..

IMPOSSIBLE battery drain........

im using gummynex rom, with the sgs-ns-ics kernel, and the battery drain suddenly became HORRIBLE.
i've used this combo before as well (kernel is on conservative/cfq), but never experienced this kind of drain. cant remember if it happened after updating or what.
1-2 hours of screen time, phone is DEAD. android os 50%+ battery usage.
left my phone unplugged overnight, and this morning when i woke up it was sitting at 40%, and it was 100% when i started sleeping. (6hr 30mins).
i used to get atleast 15hr, should i be changing the rom or the kernel? or downgrading the rom?
wifi = always on
3g/gps/autosync = off
good signal

Mix it up, try a different kernel... if that doesn't help, try a different rom.
Sent from my SPH-D710 using XDA App

You're kidding right? The exact same thing happened to me today! Gummy with matrix.
Down to 8 percent in 2 hours 30 mins.
I restarted, plugged it in and everything was fine.
Sent from my Nexus S 4G using xda premium

Could be a hardware issue too.

happened to me as well. Updated to 7.7, less problems after tinkering
Sent from my Nexus S 4G using XDA App

Try draining your battery to 0% (until it shuts off by itself). Then, charge it (non-stop) to 100%.

I had similar problem flashed new ROM codename + matr1x kernel
And battery only last 10hrs.
I drained the battery then fully charge and used battery calibration app then drained again and full charge difference was amazing got 22hrs . I left my phone all night with wifi on when wake up 98% .
It might work for you too.
Sent from my Nexus S using Tapatalk

gm` said:
I had similar problem flashed new ROM codename + matr1x kernel
And battery only last 10hrs.
I drained the battery then fully charge and used battery calibration app then drained again and full charge difference was amazing got 22hrs . I left my phone all night with wifi on when wake up 98% .
It might work for you too.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
With ICS, you don't have to delete your NS' battery stats, as it resets automatically once it reaches full charge.

I am using the stock 4.0.3 rom with air kernel 3.1....the phone is working normally with 50+ hours of battery time since its unplugged and it still is sitting at 22 percent....

Battery problem

Hi folks....m using galaxy note...it's not rooted...the battery doesn't last long enough as it is claimed... is it something wrong with my phone or is this what they mean by long battery life... i text alot and during texting and playing gamea my phone gets warmed up and the battery lasts less than 3hours if i continue texting...my kernel version is [email protected]#2.....please help....
Sent from my GT-N7000 using XDA

It sound like you have a faulty battery if it only lasts three hours, I think you would have to be gaming to flatten a good battery in that time.
John.

Mine is the same. If I'm browsing the web, using instagram, Facebook and receiving email my battery will go from full to empt in easily 3 to 4 hours.

Backup, factory reset, reinstall apps from market (try to install only the ones you use a lot at first), restore the data you need. If you're still seeing the same things happening, install a battery logger / system logger. Use this guide to see if there's a rogue app that's causing the trouble: http://forum.xda-developers.com/showthread.php?t=937080
If it's still acting up and you cannot identify any unusual drain, I'd ask for a replacement.
After you get things sorted, you can use apps like Juice Defender from the Market to prolong your battery life even more.
-KJ

thanks guys for the sincere contribution.... i hope your advices help me...

my top battery consuming activities are:
temple run
google play
msging
go launcher
and nothing else

gaming and browsing certainly make the battery drain almost visibly..
things above and beyond the above to try include..
1. reduce screen brightness
2. reduce frequency of or disable background updates by apps
3. no vibrate notifications
4. work more, play less!..lol
the battery life of the Note is great, unless you use it .. a battery monitor will allow you to see the battery drain over time..this will help when you address item #2 above.. if you accept default refresh times, and have lots of social apps your battery can die in 6-7 hrs without even using the Note at all!..

I really love when people give the tip to not use your phone as a battery saving tip

forum.xda-developers.com/showthread.php?t=1600691
some hints for better battery life

Got mine the other day. First charge battery was fine. Second charge went down 7% in about 5-10 mins. Then it restarted :/ Came back on, down to 88%. Turned the phone off as was frustrating me as it restarted 3 times yesterday. But when I turned it back on I was at 83%?
Hasn't last me the day, it's on charge now. When it pops up telling me to charge it tells me to shut all apps and that using while charging may effect it charging. Is this correct? I didn't think it would have anything to do with it?

3 to the 4 hours continuous use is normal... Only if your phone is standby and then depletes in that time You should be worried. I recommend researching wakelocks in that case.
There are many variables that can atribute to batterylife depletion. Eliminate those first and you will have your answer.
I had best results on stunner version 19. To bad it has the death kernel (leaked ics)
Sent from my GT-N7000 using Tapatalk 2

I am facing a similar issue, facing a massive wakelock by PowerManagerService. It keeps the phone awake all the time?
Any suggestions?

shrayv said:
I am facing a similar issue, facing a massive wakelock by PowerManagerService. It keeps the phone awake all the time?
Any suggestions?
Click to expand...
Click to collapse
Usually that wakelock is there cause you are charging, or have USB plugged in
Edit, I was wrong, sorry, this guy is right, I think http://forum.xda-developers.com/showthread.php?t=1340066
Sent from my GT-N7000

http://forum.xda-developers.com/showthread.php?p=16808932 this has some good android tips
Sent from my GT-N7000

I have my note now for 2 days and i see a lil issue with the fast draining to battery power. Although i have been on it for a few hours its expected but i shall try these tips cause they do help
Sent from my GT-N7000 using XDA

craiigman said:
Got mine the other day. First charge battery was fine. Second charge went down 7% in about 5-10 mins. Then it restarted :/ Came back on, down to 88%. Turned the phone off as was frustrating me as it restarted 3 times yesterday. But when I turned it back on I was at 83%?
Hasn't last me the day, it's on charge now. When it pops up telling me to charge it tells me to shut all apps and that using while charging may effect it charging. Is this correct? I didn't think it would have anything to do with it?
Click to expand...
Click to collapse
Drain your battery up to 20%....then charge it againg. ....try charging overnite.....it worked for me...u can try juice defender also
Sent from my GT-N7000 using xda premium

Had the note for 2 days. It came with LA4 FW and updated via Samsung Apps for the latest FW.
Battery drain, that was none on LA4 became very strong!
Installed Better Battery Stats and discovered that the CPU was always running.
Factory reset solved it...
Regards
Nuno

forum.xda-developers.com/showthread.php?t=1600691
This one has some note specific tips, also pretty good. I concur on the speedmod kernel, its awesome
Sent from my GT-N7000 using Tapatalk 2

I can recommend "2x Battery" free app. I'm using it today and making a very noticeable difference.
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