Database Develop

Need Help w/ Battery (Yes, I've done my research as best I could)

Ok, so ever since I upgraded to CM6 (which I LOVE) I've had serious battery issues and I've tried to fix it by installing Pershoot's kernel and I have SetCPU to underclock in depending on what battery life it's at. Also, I've wiped my battery stats and I've calibrated my battery already.
Today my battery was at 64% after only 3hr and 26min. I don't have GPS on, auto backlight is on, 3g/2g and sync are on. If it makes any difference I have the Korean radio installed (which btw improved my reception a lot! ). After about 9hrs and half, my nexus one died. As per usage, I wouldn't say it's much at all because I'm in class most of the time and I've only talked on the phone for about 1 min, browsed a few websites, and sent only a few texts.
I keep reading on the forums about how people are getting 1-2% lower per hour while on standby but the % I reported earlier, my battery's draining at over 9%/hr!
I really just want to be one of those people that can say that "I still have 50% left after 12 hours!" lol
So, is there anything else I can to increase battery life? Is my battery just crap? Any recommended setCPU profiles?
If you're one of the users that get really good battery life from your Nexus One, please tell me what you did to get it that high! Thanks!

Don't use setCPU to manage battery life, only to overclock. It overrides the kernel's settings. Sounds like you need to wipe and flash the rom again. Then gradually add applications you want, something is sucking battery life.
Last, buy a new battery.

CM6 has less than stellar battery life. If you check the "help with my battery life" type threads, you will see most of the OP's have CM6 as their ROM. Try another ROM, you will get better results.

adambenjamin said:
CM6 has less than stellar battery life. If you check the "help with my battery life" type threads, you will see most of the OP's have CM6 as their ROM. Try another ROM, you will get better results.
Click to expand...
Click to collapse
Quoted for lies

I'm using CM6 and I get between 22-32 hours on a single charge. I just use the kernel that comes with it and i almost always have sync on. No GPS or bluetooth though.
Are you using a battery you purchased on ebay? Or are you using the stock battery? ebay batteries last me about 9-12 hours and die. The stock battery is amazing

Exactly the same situation as you:
CM6.
N1.
Student.
Experiences massive drainage in short amounts of time with low usage.
Tried everything.
I'll now be trying Enomther, because yes I have heard CM6 users get worse battery life.
Just a viewpoint on what I'm facing. For the past week I've gone to bed with 100% battery and woken up ~7 hours later on 75%. I've tried WCDMA and GSM auto settings and neither male a difference.

evilkorn said:
Don't use setCPU to manage battery life, only to overclock. It overrides the kernel's settings. Sounds like you need to wipe and flash the rom again. Then gradually add applications you want, something is sucking battery life.
Last, buy a new battery.
Click to expand...
Click to collapse
Thanks for the advice! I'll be looking into this!
KAwAtA said:
I'm using CM6 and I get between 22-32 hours on a single charge. I just use the kernel that comes with it and i almost always have sync on. No GPS or bluetooth though.
Are you using a battery you purchased on ebay? Or are you using the stock battery? ebay batteries last me about 9-12 hours and die. The stock battery is amazing
Click to expand...
Click to collapse
I'm using the stock battery so I don't know what the problem. I just ordered another official stock battery though yesterday and I'm going to see if there are any differences.
Forge94 said:
Exactly the same situation as you:
CM6.
N1.
Student.
Experiences massive drainage in short amounts of time with low usage.
Tried everything.
I'll now be trying Enomther, because yes I have heard CM6 users get worse battery life.
Just a viewpoint on what I'm facing. For the past week I've gone to bed with 100% battery and woken up ~7 hours later on 75%. I've tried WCDMA and GSM auto settings and neither male a difference.
Click to expand...
Click to collapse
Thanks, I'm glad I'm not the only one with this problem. I thought I was being an idiot by doing something wrong...
I've calibrated my battery several times already while trying to fix this issue. Could that have killed my battery life?

1) Discharging the battery below 10-15% is bad for the battery, doing it many time will destroy the battery, making it last just about nothing.
2) Check CPU usage - download System Monitor or some other app like that, and check the running frequency of the phone. When you just run the program and don't touch the phone, it should float around 300 MHz. If you have it locked on 998MHz - you have an app that got your CPU stuck in a loop.
3) Download some app that stores battery stats, and check your discharge current and battery capacity - that way you'll know if it's your battery dead or your apps drawing the juice.

Sorry, double post.

Jack_R1 said:
1) Discharging the battery below 10-15% is bad for the battery, doing it many time will destroy the battery, making it last just about nothing.
2) Check CPU usage - download System Monitor or some other app like that, and check the running frequency of the phone. When you just run the program and don't touch the phone, it should float around 300 MHz. If you have it locked on 998MHz - you have an app that got your CPU stuck in a loop.
3) Download some app that stores battery stats, and check your discharge current and battery capacity - that way you'll know if it's your battery dead or your apps drawing the juice.
Click to expand...
Click to collapse
crap, all the guides that i've read regarding calibration told me to discharge it completely.
My CPU usage seemed normal. It was stable at around 245 and would jump up to 998 from time to time that doesn't last for more than half a second though.
My battery seems to be in good condition as it's labeled as "healthy" by my battery apps and the voltage seemed normal....

lol at this thread...
http://forum.xda-developers.com/showthread.php?t=714184
Do a nandroid back-up of CM6, and then try out the above ROM. You can always go right back to CM at any time.

For calibration, complete discharge is necessary. Doing it once is not too harmful. As long as the battery is reported "healthy" - you're ok.
There are apps that will show you the approximate capacity of your battery in numbers. Try to find one like that.
Please check discharge current and voltage over time. It doesn't make sense that a phone on 245 MHz in sleep mode will draw the current required to discharge 10%/hour.

in same boat as OP
im in the same position as the OP
student.
dont use phone for nearly 7 hrs a day
backlight on lowest, gps and bluetooth off.
ive been looking around for answers (hence why im reading this)
when class gets out ive gone from 100% to nearly 65%
running cm6 and ive wiped battery,
about to switch ROM, maybe that'll help.

adambenjamin said:
lol at this thread...
Do a nandroid back-up of CM6, and then try out the above ROM. You can always go right back to CM at any time.
Click to expand...
Click to collapse
Thanks, I'll look at that ROM and check it out when I get time (probably this weekend).
Jack_R1 said:
For calibration, complete discharge is necessary. Doing it once is not too harmful. As long as the battery is reported "healthy" - you're ok.
There are apps that will show you the approximate capacity of your battery in numbers. Try to find one like that.
Please check discharge current and voltage over time. It doesn't make sense that a phone on 245 MHz in sleep mode will draw the current required to discharge 10%/hour.
Click to expand...
Click to collapse
Cool, thanks for the advice. I'll look for an app ASAP and report what happens.
Branden10 said:
im in the same position as the OP
student.
dont use phone for nearly 7 hrs a day
backlight on lowest, gps and bluetooth off.
ive been looking around for answers (hence why im reading this)
when class gets out ive gone from 100% to nearly 65%
running cm6 and ive wiped battery,
about to switch ROM, maybe that'll help.
Click to expand...
Click to collapse
Awesome, if you find a fix let me know please.

I haven't been able to do any of the suggestions yet but (when it comes to flashing) but I do have an update that might shine more light on this issue.
Today in class I noticed that my N1 was warm when it was in my pocket but nothing was running and gps and bluetooth was off. I checked the temp of my battery it was at 36.1C while it's usually at 30-31C when I'm not doing anything.
Also, I checked spare parts this morning and found that, while I was asleep, my N1 was not asleep for half that time but my screen on for only 4% of that time (probably from my messing with it before and a little bit after sleep).
I've checked to see if anything is running in the background that might lead to this but so far none of my apps should drain my battery that much while I was asleep.
Is this normal? Shouldn't my phone be mostly in sleep mode when I'm asleep since I'm not doing anything to it? As for the battery heating up, do y'all think it's a faulty battery or the fault of the OS?
Thanks again for all of y'all's helpful replies!

Is this normal? Shouldn't my phone be mostly in sleep mode when I'm asleep since I'm not doing anything to it? As for the battery heating up, do y'all think it's a faulty battery or the fault of the OS?
Thanks again for all of y'all's helpful replies!
Click to expand...
Click to collapse
About battery heating...
I checked and mine is at 75-78F while in class. My n1 is also in a case, so for it to be that low is good. Just thought to throw that in as a comparison.
Also i've switched ROMs to help with battery, no luck there. Still experience 7-8% drop per hour.
I've been keeping my phone off now at school, which has helped, though I still lose nearly 15% while it's off.
Sent from my seXus One using XDA App. While I gripe about battery stats.

Branden10 said:
About battery heating...
I checked and mine is at 75-78F while in class. My n1 is also in a case, so for it to be that low is good. Just thought to throw that in as a comparison.
Also i've switched ROMs to help with battery, no luck there. Still experience 7-8% drop per hour.
I've been keeping my phone off now at school, which has helped, though I still lose nearly 15% while it's off.
Sent from my seXus One using XDA App. While I gripe about battery stats.
Click to expand...
Click to collapse
I understand if my battery was at 71-78F but my battery was at almost 97F just sitting in my pocket...
Hmm, I think it's weird that the battery still drops 15% when the phone is off...

adambenjamin said:
lol at this thread...
http://forum.xda-developers.com/showthread.php?t=714184
Do a nandroid back-up of CM6, and then try out the above ROM. You can always go right back to CM at any time.
Click to expand...
Click to collapse
Alright, I just flashed it with that OS. I'll let you know how it goes. Thanks!

timchoi89 said:
Alright, I just flashed it with that OS. I'll let you know how it goes. Thanks!
Click to expand...
Click to collapse
i was using the cyanogen mod 6.0 for my nexus one and had a major battery iss i would wake up for work fully charged 100 percent goes on stand by with my set cpu to the lowest possible and the task manager running... note its on standy by with the screen low powered no gps or wifi running? so its 100 percent charged and then i leave to work arrive at 6 or 6:30 and its down 10 percent or more??? please if anyone knows a good kernel or rom to use please let us know my battery is in good health and from stock.....

Jack_R1 said:
1) Discharging the battery below 10-15% is bad for the battery, doing it many time will destroy the battery, making it last just about nothing.
2) Check CPU usage - download System Monitor or some other app like that, and check the running frequency of the phone. When you just run the program and don't touch the phone, it should float around 300 MHz. If you have it locked on 998MHz - you have an app that got your CPU stuck in a loop.
3) Download some app that stores battery stats, and check your discharge current and battery capacity - that way you'll know if it's your battery dead or your apps drawing the juice.
Click to expand...
Click to collapse
im checking the cpu usage but i really dont know where and which app specificly i use but i took a few pics and will try to post them up as soon as possible....battery stats i will post that up too...please help anyone...i was using cyanogen mod now leofroyo2.1

Samsung Galaxy S Battery Drain

Hi,
im having battery drain problems the phone wont last more than 5-6 hours send 20-30 texts listen to some music, i have turned off backgroud data and live wallpapers, im using something called advanced task killer free to kill the apps that are running, but i close them the re open the task bar and stuff like music player has reopened
ive also seen a post about which batterys are better is there a better one i can buy? my batterys a G7
any ideas ?
cheers

Stop using the task kiler and you'll probably see better battery life. Task killers have been proven more harmful than helpful on the newer versions of android so using it is pointless. Also pay attention to what you have synced and how often. tons of web apps synching will drain the battery faster, as will having the gps and wifi turned on--if you're not using them, disable them.

thanks for the reply i will remove the task manager,
auto sync is turned off and i only use email by refreshing the inbox

Come here: http://forum.xda-developers.com/showthread.php?t=884816
In short: Have you recently updated via Kies to JPY version? If so, stop using your wifi. There is a bug with wifi with this newest firmware.

hi,
i update to 2.2.1 through kies

Do you use wifi?
If yes, switch to data, battery life will be better. You should be able to get around 48h of light active usage (i mean browsing and calling and what not) with 3g data on.

i dont really use the wifi, signals really good around me, i only got the phone friday, brought it of a friend,
charged the phone fully before i went out last night about 7pm by 1.30am the phone had cut off, that was only using the facebook andriod app and sending text messages.

Than there is something terribly wrong. Do a wipe and factory reset, if you didnt after getting a device from your friend.. It seems that some application misbehaves and drains battery.
You can check it by typing *#*#info#*#* in dialer
Several options there, if there is something strange you will see it. (suggest looking into Battery history, usage statistics)

i dont know how to type in dialer sorry sounds very stupid all i have are digits

liamparker89 said:
Hi,
im having battery drain problems the phone wont last more than 5-6 hours send 20-30 texts listen to some music, i have turned off backgroud data and live wallpapers, im using something called advanced task killer free to kill the apps that are running, but i close them the re open the task bar and stuff like music player has reopened
ive also seen a post about which batterys are better is there a better one i can buy? my batterys a G7
any ideas ?
cheers
Click to expand...
Click to collapse
Have you tried reconditioning your battery yet?
http://forum.xda-developers.com/showpost.php?p=10092321&postcount=11053
From the above post:
TechnicR said:
About my battery life:
Previously I was on Darky's v5, with that the phone lasted 2-3 days with normal usage.
After flashing to v7 (with 100% battery) I also got the fast drainage problem. Here is what I did:
1) Turn OFF phone
2) Charge till it says it is FULL
3) Start in RECOVERY
4) WIPE battery stats
5) RESTART android (yes, it might already be on 98% or so)
6) USE phone heavily. Don't worry if it drops too fast. Use it till the Android system turns OFF automatically (it happens when your battery is below 1% - for me the phone was on 1% for about 40 mins. This is where it heavily myscalculated
7) PLUG IN your charger, TURN ON android and wait till it is FULLY charged again. (It is better if you don't use the phone at this charging up)
Now, after you disconnect the charger, you should still have 100% for some time (I've been using the phone for 32 mins - writing this post - and it is still on a hundred percent) and with this, I got back the 2-3 days battery life with normal usage.
Also, you should set WiFi to: "Never when plugged in" and by default I disable Data Network. But my phone is using WiFi all the time so it doesn't really matter
So to summerize this method, the key is to show the phone the battery's minimal capacity too, by using it till it is on null. Because with charging to 100% than wiping or flashing only introduces the maximum capacity to the system and the minimum is only guessed. THIS gives the faulty reportes and makes us think the phone drains too fast.
Try this method, than feel free to share your results
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
This may not be the exact case you are having, but the idea is the same. Give it a shot.

nvm, 'info' stands for '4636'

You could also use titanium backup and freeze some apps from running
Sent from my SGH-T959 using XDA App

Having the same problem
Hey, I'm having the exact same issue as the OP. Have you found a solution yet? I deleted the task killer just now, but did that work for you?
Thanks.

Same problem
hi
I have the same problem. I bought it 2-3 days ago. today i charged it full while fone was off, switched on at around 8AM my usage detail was
3g was on
gmail on sync
skype on sync
5-10 min of skype calling
5 min of normal calling
5-10 min of facebook browsing through android app
30 min of chatting on skype
at 2PM the fone was at 20% battery. My wifi and gps were off all day.
is there anything i can do to get atleast 15 hours of battery with normal use
regards
harris

If you are having issues with your battery, before you try killing tasks, changing setting and what not and especially if you are running custom ROMs, then you need to recondition your battery. The same goes for anyone who is having high drain issues.
If you follow the steps I posted from someone else's post and then find that your battery is not having issues, then start looking at your modem (if using a custom ROM or you've upgraded to new firmware).

ive done a factory restore, ive found what my usage says idle 4% the display 80%
contrast is switched right down

i know im not using any custom roms im using the firmware that you download through kies

liamparker89 said:
i know im not using any custom roms im using the firmware that you download through kies
Click to expand...
Click to collapse
still should try it first

I'd suggest posting this question in the Galaxy S general forum as you'll get a lot more responses

Same here
Data network activated (2g or 3g) phone die after 11 hours.
When data network deactivated phone die after 2 days!
I installed whatsapp, gtalk and one email account with 10 mins refresh.
I never use wifi.
Drain 7 - 8 % per hour when phone idle (Phone on with 3g data but without using it)
I really don't know how to "finger pointing" suspicion app via battery history.
BR

[Q] Captivate Battery and Serendipity

Hi folks.
Sorry if this is a redundant question or thread, I have used the search feature and am not getting the results I want. Furthermore I have a 2 year old and 9 month old hanging on my legs here and just need an answer so again apologies if this is redundant.
I have had my Captivate for about 5 days now. I rooted it and installed Serendipity 5.3 ROM. Today I noticed my battery went from 100% to 5% in 4 hours. Is this normal?
I got home and updated Serendipity to 5.4 and then 5.5 but not sure if that will fix the battery issue. The day before I ran the battery all day 10 hours and I was at 35% which to me was normal as my iPhone 4 had the same performance. But 100-5% in 4 hours seems a bit strange.
Any help would be appreciated sorry for the long post I need to get back to my kids.
Thanks!

4 hours for almost 100% battery usage is not normal.
check your wifi setting, gps setting first.

Sounds to me like your battery needs a calibration. It's generally a good idea to re-calibrate your battery after flashing. I generally get 20hrs on my Captivate with Serendipity 5.2 with average usage.
Check out this thread.

integrasaurus said:
Sounds to me like your battery needs a calibration. It's generally a good idea to re-calibrate your battery after flashing. I generally get 20hrs on my Captivate with Serendipity 5.2 with average usage.
Check out this thread.
Click to expand...
Click to collapse
Thanks to both replies
Now that one kid is asleep and the other on her way....what is the optimal wi-fi setting for best battery life and the same for gps?
Also, I looked at that thread and I am in process of trying it out integrasaurus.
This is my first time with an Android phone, I came from an iPhone 4 jailbroken so I am an Android virgin and 5 days old.
I also want to say I am sorry about starting a thread if this topic was hit on already. I have been around forums a long time and I know how frustrating it is when noobs do these things so I thought I'd offer my sincerest apologies for doing what I would get mad at too.

usually after you flash a new rom, the gps is set to on. turn it off if you are not using it;
go to settings->wireless and network->wi-fi settings, then click menu to bring up the advanced->in the wi-fi sleep policy->make sure select "when screen turns off";
go to settings->applications->samsung apps->make sure it is "off"

mengbo said:
usually after you flash a new rom, the gps is set to on. turn it off if you are not using it;
go to settings->wireless and network->wi-fi settings, then click menu to bring up the advanced->in the wi-fi sleep policy->make sure select "when screen turns off";
go to settings->applications->samsung apps->make sure it is "off"
Click to expand...
Click to collapse
Hmmm
I dont see this?
go to settings->applications->samsung apps->make sure it is "off"
I got the wi-fi taken care of though thanks for that.

It was strange today though, I plugged the phone in to wall ac and it took forever (5hours) to charge from 5% to 40% and then drained in less than an hour back to 5%.
Its charging now and has been on my usb port for 2 hours and its up to 72% from 4%.
That was also a confusing mystery.

Hey guys, just want to say thanks again. I'm still working on calibrating batt but I after reading some more in the forums (kids finally both in bed and OUT) I discovered that I had 2 task killers installed and that these apps are battery killers (at least in some opinions).
I uninstalled them and charging seems to be moving faster than before. I will let you know how things go.
Thanks again!

I am running Serendipity 5.5 and my battery typically lasts between 26-30 hours with normal use. I don't use any task killers, but if you have your task killers set to be too aggressive I'm sure that would drain the battery pretty fast. I'd suggest just ditching them completely though, as I get over a day's battery without trying to manage all of that.

Also, check if ur gallery has the sensor bug. U can find this out under battery usage using the SPARE PARTS app.

diablo009 said:
Also, check if ur gallery has the sensor bug. U can find this out under battery usage using the SPARE PARTS app.
Click to expand...
Click to collapse
It says Gallery 2 177872ms...what am I looking for to see if there is a bug?

wibs said:
I am running Serendipity 5.5 and my battery typically lasts between 26-30 hours with normal use. I don't use any task killers, but if you have your task killers set to be too aggressive I'm sure that would drain the battery pretty fast. I'd suggest just ditching them completely though, as I get over a day's battery without trying to manage all of that.
Click to expand...
Click to collapse
yup, I deleted them already. I believe that was the cause of the sudden change in life, as I didnt have many problems before them.
After my battery cal I have been running the phone on and off normal use for over an hour. Battery is now at 95%, started at 100%.
I see improvements already, but will hold off saying its fixed completely until I can give it a day or two of testing.

iDroidd said:
It says Gallery 2 177872ms...what am I looking for to see if there is a bug?
Click to expand...
Click to collapse
sometimes the thumnails get corrupt which eats battery while trying to load and need to be "refreshed" a simple way to do this is in the app SGS TOOLS run the script "clean_thumb_db.txt" this should fix gallery issues.

Thanks for this info. This will be something I will keep an eye on for sure. Phone is still above 90% after over 2 hours. Hoping the calibration and deletion of task killers did the trick.
Sent from my SAMSUNG-SGH-I897 using XDA App

Charge battery 100% then some... Power off phone and let charge longer... Boot into Clockwork and reset battery stats.... Run the phone a few charges and you should be gold.... Under normal/light use I can get 1.5 days out of my battery...

Also check your wireless settings. Try setting them to turn off wireless when the screen is off. That was a huge battery drain for me.

Thanks to all here for the help and thoughts.
So last night I
1. Got rid of task killers
2. Updated Serendipity from 5.3 to 5.5
3. Adjusted wireless settings
4. Calibrated battery
I finished all this at 8:15pm CST and the phone has been unplugged since then, with moderate use between 8:15 and 10:15pm. It is now 7am CST and the phone is at 63% power which is a huge improvement from yesterday.
I am convinced it was the task killers that had the most drain on the battery.
I will give it one or two more days and see how performance is then and let you know.
You guys rock!

Back on Serendipity 4.3, while OC/UVing I could get about 25-28 hours with normal use, texting throughout the day, occasional calls.
Now that I'm on 5.5, I am getting about 28-32 hours, still OC/UVing.
Also, I use advanced task manager, and it doesn't kill my battery at all. Any more than other apps at least.

Glad everything is working out for you iDroidd!
..Now back to flashing lol.

integrasaurus said:
Glad everything is working out for you iDroidd!
..Now back to flashing lol.
Click to expand...
Click to collapse
LOL
so I went 22 hours on one charge, now that's the initial charge of calibration. It's plugged in now we will see how it fares going forward.

again .. galaxy note battery

This is my first post here. Am kinda new to the forum
Well, i know this issue have been said over and over. But i didn't get anything out of other threads
I have my new gnote on stock ICS for 6 weeks now. It's battery drain rate was about 1 % every 5 minutes on browsing. Then one day i installed game "angry gran 2" from 1mobile market, because it said on playstore not available for ur country. And since that moment the battery went crazy. Drain 1 % every 2 or 3 minutes. I uninstalled it a day later and the problem is still there. This was about 10 days ago
I checked running apps nothing is different than normal
I dunt use face book app
I uninstalled samsung push service
GPS and location services are always off
The mobile goes into deep sleep very well no problem with that acc to CPU spy. The processor which usually works is 200 mhz then sometomes 1200 mhz
All settings since the day i bought it are set to save energy "lowest brightness, sync is off .... Etc."
Now the battery does not work notmally unless every charge i remove the battery for few minutes and put it back' i did this today before i turn off my phone battery was 92 % remived battery put it back and it's 87% ! :S
Yester day about twice after going to sleep i find batter increased 1%
Can you help me please to spot where the problem is ?
I have better battery stats but i dunt understand it
And one more question please, does having large number of apps even if not running in the background cause battery drain ?
Thanks all will greatly appreciate any help

+1 on that. My note's battery runs really fast and I'm not even using it for hardcore gaming. The battery gets really hot at times too.
Sent from my Biowonder using KOH and NaOH

update: screen shot from better battery stats
Check these screenshots from better battery stats is this rate normal ?

Hi! Once I had a similar battery issue, but in my case it was after flashing a custom rom. Battery started draining much faster than usual. And sometimes battery percentage jumped up too. Have you tried to remove/insert battery, then fully charge your phone and when fully charged run "Battery Calibration" app from Play Store? Have a feeling it's not the solution for your battery issue, maybe a long shot, but still maybe worth a try if you haven't done that already?
Sent from my GT-N7000 using xda premium

opiujn said:
Hi! Once I had a similar battery issue, but in my case it was after flashing a custom rom. Battery started draining much faster than usual. And sometimes battery percentage jumped up too. Have you tried to remove/insert battery, then fully charge your phone and when fully charged run "Battery Calibration" app from Play Store? Have a feeling it's not the solution for your battery issue, maybe a long shot, but still maybe worth a try if you haven't done that already?
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?

someone26 said:
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?
Click to expand...
Click to collapse
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app

SpyderTracks said:
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
That is correct. The name of the app might be misleading. It does not do anything to the battery's physical condition at all.
The problem I had was that my "battery" suddenly started to drain very fast according to the battery icon in status bar. It dropped about 1%/min during screen off, and even faster with screen on. I charged my phone to 100% about 6 or 7 times. But as soon as I unplugged the cable I had that very quick drain. I guess the battery itself had much more capacity left than shown, it is in good condition... but that didn't help me because my note turned off when the battery icon showed it was low on % and I had to start charging again. Then I ran this app, which only thing it does is to simply delete batterystats.bin file if I understand it correctly. I don't know much about these stuff, but after that the usage time of my phone is back to normal again
Sent from my GT-N7000 using xda premium
---------- Post added at 09:42 AM ---------- Previous post was at 09:09 AM ----------
someone26 said:
Well i haven't tried battery calibration yet. Will try it what to lose !
I searched for it it needs rooted device. Do you know some app does not need root ?
Click to expand...
Click to collapse
I just had a look at Play Store and all the apps I saw that does remove batterystats seem to need root. Probably it is a system file you can't touch without root access then Also, the battery issue you have might be caused by something else.
Sent from my GT-N7000 using xda premium

Well i wish it can be solved this way ... Coz other option am.gonna take is downgrading to GB then factory reset as i understood this won't brick my phone if I got it carrectly
May be it's calibration thing ... Check the attatched photo the batteru since 3 a.m. To 9 a.m. Is almost at same level or increasing .. Maybe it's some kinda of system calibratoon of battery indicator against battery fast drain while working .. I dunt know

In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium

Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )

Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
Can u give me ur battery plz
↖(^▽^)↗ Sent from Rego Galaxy Note ↖(^▽^)↗

SpyderTracks said:
There's no such thing as battery calibration apps, it's a con, you just put them through a few cycles and they're fully charged, modifying the battery stats does nothing for the use of the physical battery.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?

hahuhe said:
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?
Click to expand...
Click to collapse
Huh
Now iam understand my problem is solved m maybe because iam didnt charge phone when iam changed my rom
And when iam charged it for first time on this custom rom i see problem( battery incrase with itself) solved Thanks God.

Portgas-D-Asce said:
Hmm iam have somethings like ur Problem
My Battery is Very Good
Not Drain anymore But Have something when iam go to sleep my battery 65% when iam wake up i found battery 66%
I dont know what is the problem but someone said to me some advanced to this Problem Read this Topic
http://forum.xda-developers.com/showthread.php?t=1874642
But Did you have this problem ( Battery sometimes Incrase 1% wih itself )
Click to expand...
Click to collapse
My battery is crazy. Yep in deep sleep some times it increase 1 % .... On the other hand while working with the phone it drains very rabidly at a rate 3-3.5 % per minute .... Either on wifi or not ... It's normal rate used to be 5 % per minute till the day iinstalled that game and the problem persists even after i removed it
As for the explanation in the thread ptovided it does not make sense to me .. Because every time the battery jumps up the battery drain becomes soooooo rapid afterwards

offdrment son,
opiujn said:
In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
In battery settings there's nothing other than usual at all
I will try safe mood and see what i get ... But should i work with it till the battery ends or i can use it for a couple of hours and notice the batt. Drain rate ?

hahuhe said:
although battery calibration app does nothing to do the battery hardware, but it does calibrate on how the battery percentage is being read by your phone. It wiped your battery status, allowing 100% charged to be read as 100% charged. sometimes, due to various reason (ie. flashing without fully charging), your battery status will be inaccurately read by your phone. For example, you charge your phone upto 2000, havent completely charged to the max capacity (2500) but the phone already read 2000 as 100%. and because of this, it will look like your battery drain really fast or the percentage jumping up and down. i guess.
wiping battery status requires you to have root access. thus, this app will only work when you have rooted your phone.
it is true that after a few cycles (not sure how many times) of charging the battery status may go back normal but hey, if we can make sure to do this calibration with only one cycle, why we have to do more?
Click to expand...
Click to collapse
I was trying to find a way to root my phone but i can't find any data on the web ! For some reason that way of rooting tgat was on xda deleted ...
But I have a question ... I always wait rill my phone completely empty and charge it till completely full ... I leave it in the plug about an hour till the complete sign shows in notification bar
Does this mean that way that my battery is already calibrated and i shouldn't try to bother to root the phone and get the app ?

someone26 said:
I was trying to find a way to root my phone but i can't find any data on the web ! For some reason that way of rooting tgat was on xda deleted ...
But I have a question ... I always wait rill my phone completely empty and charge it till completely full ... I leave it in the plug about an hour till the complete sign shows in notification bar
Does this mean that way that my battery is already calibrated and i shouldn't try to bother to root the phone and get the app ?
Click to expand...
Click to collapse
There's Dr ketans thread on rooting in the stickies of development section, it's very simple.
After 1 or two full charge cycles, the battery will recalibrate itself, no need for any app, they don't do anything anyway.
Sent from my GT-N7000 using xda app-developers app

opiujn said:
In system settings > battery: what is reported there?
Have you tried boot in "safe mode" to see if it still drain the same way? It will exclude most of user installed stuff as your downloaded apps and such from running.
But remember you might loose some user settings on your phone when booting normal again after safe mode.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
I tried safe mode .. And yeah performance is a little better though still not like before .. it bought me an extra minute per 1% drain .. So i dunt know what that says ? I checked running processes the only difference that facebook and avast antivirus dunt run in safe mode .. Which were probably always there since i got the phone nothing new..

Hello everyone, need some advice. I am unable to know if my battery is functioning normal or should i get it replaced. Please see the atached picture. You will see that my battery draining off within 4hrs with 2G data on. It has been happening from past 2 weeks. Just want to know if it is normal on 2G. Or should i get my battery replaced with a new one. I have read somewhere that with 2G battery of Galaxy Note lasts for about 6 to 7 hrs. Mine goes for just 4 hrs max.
Few details about my usage:
1. Data sync is not on all the time. But for every half an hour i keep data sync on for 30 for 40 seconds max to retrive mails.
2. I dont not watch any videos, online or on mobile.
3. I dont play games at all though i have around 20 games bcoz of this poor battery life.
4. I do not do video calling.
5. With the above usage and little bit of online videos using wifi, I get around 3 to 4 hrs of battery life.
P. M. Vinay Kumar,
HTC P3400i (sold),
Samsung Galaxy S, rooted(sold),
Samsung Galaxy Note (using now),
Stock ICS, Rooted

By the time i posted my prob on XDA, battery dropped from 32% to 18% !!!
P. M. Vinay Kumar,
HTC P3400i (sold),
Samsung Galaxy S, rooted(sold),
Samsung Galaxy Note (using now),
Stock ICS, Rooted

[Q] Help with huge battery drain on usage [TRIED EVERYTHING]

Hello guys, sorry for my bad english, but I'm not American. Well, my question is:
I bought from a guy a Galaxy S I900b, Brazilian model with digital TV. Came with stock 2.3. As I had already read enough before, upgraded to JWB Saurom with semaphore kernel, which I think is the default for this rom. Well, the phone had very poor battery life, evn on idle. Then upgraded to 10.2 CM. I saw that had some wakelocks, and with BBS and the help here, I used the Scan Media Root and my problems are gone in iddle. So, my phone goes into deep sleep and today during my sleep, only lost 3% battery, 3% battery drain on idle during about 5-6 hours it very good to me. But during use, it ends up very fast, and with GSAM and standard monitor of the android, I saw that after the screen, the Android system was what had higher %% battery. So what could it be ? The battery life is ok, checked on info, and its condition is 'good'. I use to Greenify, and close almost every game\app, so running is just grenify and ram manager pro.
So the prob just could be a app or the 'android system' ? Or even hardware ?
I dont have much time now, so any info or screenshot you want, I can provide later
Thanks

What about your connections? Do you have 3G/wifi enabled at all times?

calibrate....maybe useless, but u can try....but somehow, try bigger mAh battery, maybe.....n maybe .... it will help.
juz charge it with screen turn on till it full, n waste it to 0% till it shut down, turn it on n charge it with screen on till it full again, u ll be fine
if problem occur again, keep an eye for sneaky app that run at background (email...exchange etc) n juz delete some sys app that u dont use using titanium.
if it still occur again, wait for arc reactor battery....
Sent from my GT-I9000 using xda premium

Dandry said:
What about your connections? Do you have 3G/wifi enabled at all times?
Click to expand...
Click to collapse
So buddy I've disabled 3G, just 2G, I barely make a call, just wifi. But dont matter what, if is just passing by the menus or using opera mini, using it drain battery a lot,
compacity said:
calibrate....maybe useless, but u can try....but somehow, try bigger mAh battery, maybe.....n maybe .... it will help.
juz charge it with screen turn on till it full, n waste it to 0% till it shut down, turn it on n charge it with screen on till it full again, u ll be fine
if problem occur again, keep an eye for sneaky app that run at background (email...exchange etc) n juz delete some sys app that u dont use using titanium.
if it still occur again, wait for arc reactor battery....
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
I've deleted the batterystats.bin and used until 0%, so charged while off, but nothing :C
It's true that the battery needs to 'learn' ? Like, a few charges and discharges and could estabilize ?
I'll take a few screenshots right now

Callibration of you battery eg: Wipe battery stats is onluy helpfull when you get weird battery stats.
If you are on any CyanogenMod ROM you have to get used to the higher ammount of battery use by the phone. The application Greenify can help a lot by hibernating the huge battery suckers like facebook and google maps.
Some tips:
- use 2G instead of 3G
- Turn WIFI off when you're outside the house or leaving for some time
- Turn GPS/Bluetooth on only when you're about to use it
- Dont use taskkillers (they are used to free up ram but killing apps makes android restarts them and this consumes extra juice)
- Put brightness on Auto
- Use a dark theme and background/lockscreenwallpaper
- Dont recharge your phone when below 5% this can damage the battery
- A new battery needs to "Get used to" the life of being a battery xD After a few recharging cycles it will work like normal

Here some screenshots, if need more, just ask
Note: Was with 14%batt, rebooted and drops to 11-10%
mrjraider said:
Callibration of you battery eg: Wipe battery stats is onluy helpfull when you get weird battery stats.
If you are on any CyanogenMod ROM you have to get used to the higher ammount of battery use by the phone. The application Greenify can help a lot by hibernating the huge battery suckers like facebook and google maps.
Some tips:
- use 2G instead of 3G
- Turn WIFI off when you're outside the house or leaving for some time
- Turn GPS/Bluetooth on only when you're about to use it
- Dont use taskkillers (they are used to free up ram but killing apps makes android restarts them and this consumes extra juice)
- Put brightness on Auto
- Use a dark theme and background/lockscreenwallpaper
- Dont recharge your phone when below 5% this can damage the battery
- A new battery needs to "Get used to" the life of being a battery xD After a few recharging cycles it will work like normal
Click to expand...
Click to collapse
i am using greenify on almost everything.
used to use ram manager, but now i've disable it.
brightness is on low
I really dunno what 2 do ... almost 1 week with it and this insane drain, everyone says that plays or browser on wifi and get almost 10 hours... my dream this happen to me lol
Remember that this is just on use, on idle it use virtually nothing, like I said, almost 3% on sleep, but is just I start use with app or browser and its gone

Screens are from a too short period of useage. Use it from fully charged, and make some new screenies This can help futher

Well i got problems with my battery too so im planning to buy a new one because this one cant even handle 3-4 hours when im doing something like playing games,or listening music...Just buy new battery with more mAh and dont get bother with this :laugh:

mrjraider said:
Screens are from a too short period of useage. Use it from fully charged, and make some new screenies This can help futher
Click to expand...
Click to collapse
ok buddy, will charge and use a little
LyQQ said:
Well i got problems with my battery too so im planning to buy a new one because this one cant even handle 3-4 hours when im doing something like playing games,or listening music...Just buy new battery with more mAh and dont get bother with this :laugh:
Click to expand...
Click to collapse
but in aps, show good battery state :/
think that I cant trust in it ... and will have to buy a new one

if calibrate doesnt work, hardware faulty, change ur battery mate.
Sent from my GT-I9000 using xda premium

About 2 hours later that I fully charged, here are some ss
Just used whatsapp and opera in this time
I was thinking in change my kernel, currently I'm using semaphore 3.0 with CM10.2, is Latrop or Mackay better in battery life ?
I think its my last shot ... I'll provide a new battery next week, but i've heard some people with batt probs that even with new batt the problem persists :crying:

solidedgard said:
About 2 hours later that I fully charged, here are some ss
Just used whatsapp and opera in this time
I was thinking in change my kernel, currently I'm using semaphore 3.0 with CM10.2, is Latrop or Mackay better in battery life ?
I think its my last shot ... I'll provide a new battery next week, but i've heard some people with batt probs that even with new batt the problem persists :crying:
Click to expand...
Click to collapse
It looks like wifi and 3G have been kept on for most/all of the time. Turning those off while you're not using them may significantly increase battery life.
Also, related to kernels, personally I've found Mackay to be a bit better in terms of battery.
Also it looks like your screen's pretty bright if 61% of the battery usage is because of it. So if you don't need it so bright turning the brightness down may help.
Start by doing those, and see how your battery life fares first- if not much changes, then it may help getting a bettery battery/changing rom even.
Sent from my GT-P7510

Soryuu said:
It looks like wifi and 3G have been kept on for most/all of the time. Turning those off while you're not using them may significantly increase battery life.
Also, related to kernels, personally I've found Mackay to be a bit better in terms of battery.
Also it looks like your screen's pretty bright if 61% of the battery usage is because of it. So if you don't need it so bright turning the brightness down may help.
Start by doing those, and see how your battery life fares first- if not much changes, then it may help getting a bettery battery/changing rom even.
Sent from my GT-P7510
Click to expand...
Click to collapse
So, like i said, in this 2 hours after charge, i've used opera mini with wifi, I dont use 3g. Right now the battery is less than 10%... it's strange since have people telling that can use almost 5 hours wifi and the battery is > 50%
And the brightness is at lowest bright :\
The problem could be some corrupted file ? I have the options:
- format EVERYTHING, and dont use titanium backup, since somthing can be corrupted.
- change my kernel to Mackay
- change my room back to SAUROM 2.3.6 adn semaphore kernel
I'm very sad cuz I have a very old Nokia E5 that can be on with wifi almost or more than 10hours ... and this phone can barely hold 5hour
What u suggest me to do ?

solidedgard said:
So, like i said, in this 2 hours after charge, i've used opera mini with wifi, I dont use 3g. Right now the battery is less than 10%... it's strange since have people telling that can use almost 5 hours wifi and the battery is > 50%
And the brightness is at lowest bright :\
The problem could be some corrupted file ? I have the options:
- format EVERYTHING, and dont use titanium backup, since somthing can be corrupted.
- change my kernel to Mackay
- change my room back to SAUROM 2.3.6 adn semaphore kernel
I'm very sad cuz I have a very old Nokia E5 that can be on with wifi almost or more than 10hours ... and this phone can barely hold 5hour
What u suggest me to do ?
Click to expand...
Click to collapse
How long have you been using the rom? Roms take time to calibrate the battery and this is through charge/discharge cycles.
Alternatively, go into Performance settings and change the profile to powersave/conservative (it differs from rom to rom). Lock the min CPU frequency to 200mHz- apparently this helps.
Again, this would change depending on your kernel.
And if you have a three year old battery like mine, best not to expect miracles...
Sent from my GT-P7510

Soryuu said:
How long have you been using the rom? Roms take time to calibrate the battery and this is through charge/discharge cycles.
Alternatively, go into Performance settings and change the profile to powersave/conservative (it differs from rom to rom). Lock the min CPU frequency to 200mHz- apparently this helps.
Again, this would change depending on your kernel.
And if you have a three year old battery like mine, best not to expect miracles...
Sent from my GT-P7510
Click to expand...
Click to collapse
Using bout 2 days ... but i didnt knew about ' calibrate '. Good to know that
Now i've formated everything and will put a stock 2.3 and see in a couple of days the perfomance ... if gets better, I put the saurom 2.3.6 and be with it, cuz 2.3.6 on brazilian model allow to use digital tv, and 2.3 everyone says is economic.
I'll get this updated if my situation changes, if not, will buy a new battery
Thanks for all your help
Note: How long your batt last ? With high\low usage