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
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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
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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.
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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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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.
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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
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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
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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
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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.
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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..
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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.
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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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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!
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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?
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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

Crazy battery reading

My battery was at 9%. I plugged it in, rebooted to recovery and it read 70%. I thought it was just a misread but when I rebooted it was still at 70%. Has anyone seen this before?
I'm running HB 0927, fast charge is off.
sent from the depths of helly bean

Mine acts that way, but usually just the opposite. Then over time it slowly goes up.

yeah im having a similar problem my phone battery will be at 88% then it will me at 60 in under 20 minutes which is very unusual

blizzardproof said:
yeah im having a similar problem my phone battery will be at 88% then it will me at 60 in under 20 minutes which is very unusual
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I've noticed that while in use the batt percent will drop a lot but then rise a few percent when you turn screen off.
sent from the depths of helly bean

Mine has done the opposite where it read 70 and dropped to 3% when I got into recovery. What's also odd about mine is that every time it says Charged, when I unplug it, it's never higher than 96%. But if I talk on the phone while it's plugged in, it will go as high as 99%.

That used to happen to me. I just plugged my phone in when it was dead, then I rebooted and I had 70%. Its actually very convenient. When I have to go somewhere, I just plug it in for a minute and my battery is all good to go.
Sent from my SAMSUNG-SGH-T989 using xda premium

Lol it doesn't work that way, the phone might not read the battery percentage correctly, doesn't mean it can fully charge the battery in a few minutes. After you flash a rom or factory reset, it might take a bit of using the phone to get a precise battery reading.
Although some rom have the feature to enable fast charge, but it only improve charging by a bit.
Also its okay to not charge lithium ion batteries to 100% all the time, its actually better for the life of the battery to only charge up to high 90s, some roms have the feature to limit the charging percentage.

It's because now-a-days people don't know too much about the incorrect battery stats and how to fix them.
I've had the same problems, but it's quite weird, it goes up sometimes and down most of the time.
Charge to 100% - or as high as your phone gets - then wipe battery stats. Reboot a few times and charge again to 100% and then do it again.
There's a much better method laying around here, but i'm just too lazy to search right now.

Mine,does that also. I pull the battery out and it recorrects it
Sent from my SGH-T959 using xda premium

Charging it solves the prob, but rebooting without just screws it up, especially when I had a camping retreat I couldnt call anyone causr of incorrect stats.
Sent from my SGH-T999 using xda app-developers app

Battery Calibration

Ok so my LG G3's battery is fantastic. But i'm having problems with the battery. It always takes an hour of screen time before it goes down from 100 to 99. I've tried just draining it till it shuts off then charging it up again. How do you calibrate the battery?

glossgloss said:
Ok so my LG G3's battery is fantastic. But i'm having problems with the battery. It always takes an hour of screen time before it goes down from 100 to 99. I've tried just draining it till it shuts off then charging it up again. How do you calibrate the battery?
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Click to collapse
This behaviour is normal with the G3 it seems, after the initial 1% drop it flies down.

İ have this behaviour too and i wish that all the battery drop levels would be same. it really takes some time to decrease %99 from %100

glossgloss said:
I've tried just draining it till it shuts off then charging it up again. How do you calibrate the battery?
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Click to collapse
That's exactly how to do it....

I used to do it like untill 10% and then charge it up to 100%. Am i doing it wrong or should i run it untill it shuts off by itself and then charge it up to 100%??
Sent from my LG-F400S using Tapatalk

It really flies down from 99 to 0. And takes about 3 minutes per %. Though i still get 5 to 6 hours of SOT.

Blaster1984 said:
I used to do it like untill 10% and then charge it up to 100%. Am i doing it wrong or should i run it untill it shuts off by itself and then charge it up to 100%??
Sent from my LG-F400S using Tapatalk
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It is not good for the battery to go down to 0% often

Marcovanbasten said:
It is not good for the battery to go down to 0% often
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Then I am confused,how do you calibrate you battery?
Sent from my LG-F400S

Marcovanbasten said:
It is not good for the battery to go down to 0% often
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It's perfectly fine for the battery to hit 0%. Even at 0% the battery still contains a charge, that's how LiPos work.
Sent from my LG-D850 using XDA Free mobile app

Getting the battery to 0% often, will decrease battery life on the long run. Battery should never reach 0%, 5% is very good to start charging and also never charge it to 100%, 95% is fine...

glossgloss said:
Ok so my LG G3's battery is fantastic. But i'm having problems with the battery. It always takes an hour of screen time before it goes down from 100 to 99. I've tried just draining it till it shuts off then charging it up again. How do you calibrate the battery?
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Click to collapse
That happens on every electronic device, sits at 100% 10x longer than say 99 to 98.
Sent from my LG-D855 using Tapatalk

Haha "battery calibration" thats so 90's and early 2000

Battery issue?

Just purchased myself a second hand S4 and it is a very good device, however whenever I charge to 100% once I take off the charger it goes to 99% within a few seconds and I do not have the data on or using any application. Is it normal or is it time to purchase a new battery?

I heard that turning off features like airview and airgesture can save some juice and also prevent the phone from heating.
Sent from my Sparkle V using Tapatalk

How is the battery life in general?

Arshid Vinod said:
I heard that turning off features like airview and airgesture can save some juice and also prevent the phone from heating.
Sent from my Sparkle V using Tapatalk
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thanks will try it out

drronnie said:
thanks will try it out
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You're welcome.
Sent from my Sparkle V using Tapatalk

GDReaper said:
How is the battery life in general?
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Click to collapse
When I turn on the data I lose 1% for every one or two minutes. At night when I sleep the phone loses only 5 to 6 % within eight hours. Seems acceptable to me

As long as you're happy with it, it should be ok. If not, change the battery. But it's not always the battery. Sometimes it's the ROM or kernel or other things.

Just got myself an S4 again, the first few days, it was getting very hot and seemed laggy, the battery was draining from 100% to 50% in about 1.5 hours of hardly any use, but it was charging extremely quickly or so its seemed, this one is running official 5.0.1.
So I took the battery out and it was excessively hot and i noticed it had a slight bulge in the centre, did the spin test on a flat surface and it span like a spinning top.
So bought myself another Samsung battery, now over the last few days the phone has hardly heated up and seems to be running so much smoother, battery is very stable in standby mode, still drains quite fast, but no where near as fast as on the old battery, may take a few more days to settle in i guess.

Is it true that one should not only change get the battery when less than 40% or else it will have a bad effect on the battery. I usually keep it on the charger most of the time.
Sent from my GT-I9500 using XDA Forums

Not sure about current cell phone batteries but my laptop battery died after running pretty much 24/7 on AC power. 1 year later it was so dead it didn't have juice to boot into desktop when not on AC - died just after passing bios tests.
I would say memory effect after not full charge is less severe than killing it completely by keeping it on wall socket most of the time
Sent from my GT-I9505 using XDA Free mobile app

You'd think that laptops would have some sort of charge limiters, by now, that prevents the battery from overcharging.

For stock ROM after charging the phone to 100% .. please don't unplug ..tickle charge still happens .. turn off the screen and wait till LED notification light turns green from red.. only then unplug the charger ..