Database Develop

display -- sucking up my battery life

Hello, my phones battery life is I'd say average.
I get up in the morning after its been charging all night, and after its been unplugged for maybe a half hour, with a few texts and a minute of browsing done, the battery has gone down 5%.
Battery usage shows that display is taking up 89% of the usage!
Why is this? Is it normal? If not, how can I fix this?

Display will use most anyway. Get a darker home screen, either use low brightness or auto-brightness. not much else you can do.

Let me guess you're using CyanogenMod?

I've seen reports of my same problem, and those that had it found a solution by wiping the battery statistics, letting it die, then charging it to 100%
But no, my nexus isn't even rooted.

Strange. Before I was rooted my display would always be 1st or 2nd, along with android OS
After I rooted using Cyan, it was always 1st taking up more than 60%
Then I switched ROMS now its always 3rd or even 4th
Sorry dude.. try wiping batty stats and changing your brightness.. are you using live wallpaper? what about screen timeout.

S_Dot said:
Strange. Before I was rooted my display would always be 1st or 2nd, along with android OS
After I rooted using Cyan, it was always 1st taking up more than 60%
Then I switched ROMS now its always 3rd or even 4th
Sorry dude.. try wiping batty stats and changing your brightness.. are you using live wallpaper? what about screen timeout.
Click to expand...
Click to collapse
has anyone thought that the battery usage stats has to equal 100% so if the operating system on CM is running lighter (usin the cpu less or in a more efficient way) then the display would be taking more % of battery usage making people think there is something wrong when probably there is nothing wrong. maybe the desire ports (modaco ro king) use more cpu and thats why the display is 3rd or 2nd.

izmar said:
Hello, my phones battery life is I'd say average.
I get up in the morning after its been charging all night, and after its been unplugged for maybe a half hour, with a few texts and a minute of browsing done, the battery has gone down 5%.
Battery usage shows that display is taking up 89% of the usage!
Why is this? Is it normal? If not, how can I fix this?
Click to expand...
Click to collapse
This is perfectly normal. Displays are power hungry relative to the rest of the phones components.
Google maybe shouldn't have included the battery usage page as it just leads to confusion. When you use up 5% of your battery's power and then check the stats and see that the display is listed at 89% it means that of the 5% used, 89% went to powering the display. It does not mean that the screen has used 89% of your total battery at that point.
Leave the phone alone for a while and you'll see that the display percentage will go down while things such as Cell standby will go up.

lore2486 said:
has anyone thought that the battery usage stats has to equal 100% so if the operating system on CM is running lighter (usin the cpu less or in a more efficient way) then the display would be taking more % of battery usage making people think there is something wrong when probably there is nothing wrong. maybe the desire ports (modaco ro king) use more cpu and thats why the display is 3rd or 2nd.
Click to expand...
Click to collapse
Nobody thinks of that
-------------------------
I am on more than 9h of use still 50% battery left!
- Autobrightness on
- No taskkiller!!
- Wifi on all the time
...and using it today a lot, mails, web, twitter,....-> made a logcat this morning and eliminated my battery drainers

Agh! I want better battery life! I feel like it's dying much too quickly....

buy a bigger battery

or stop fiddling with it so much, lol
turn the brightness down. turn the sync off. turn off background data. don't use bluetooth or wifi. turn off your location.
don't use live wallpaper, use a darker screen that doesn't move.
i know on my winmo phone if i turned on bluetooth, battery would just get sucked out. i couldn't charge
it as fast as bt used it up. and that was with a fastcharge reg edit.

I believe you just got your phone, right?
It's cause you're playing with it so much.

I dont feel like I am though. I am using it probably just as much as I use any other phone I've had.
Maybe the battery just needs to be broken in.

timothydonohue said:
turn the brightness down. turn the sync off. turn off background data. don't use bluetooth or wifi. turn off your location.
don't use live wallpaper, use a darker screen that doesn't move.
Click to expand...
Click to collapse
So cripple the phone basically?

lore2486 said:
has anyone thought that the battery usage stats has to equal 100% so if the operating system on CM is running lighter (usin the cpu less or in a more efficient way) then the display would be taking more % of battery usage making people think there is something wrong when probably there is nothing wrong. maybe the desire ports (modaco ro king) use more cpu and thats why the display is 3rd or 2nd.
Click to expand...
Click to collapse
Nobody ever thinks of that unfortunately. I would think display using the most would mean you're using a pretty efficient device.

Yup. That if you want to keep your battery as long as it can get. Else, if you want to enjoy your phone, buy a spare battery along with the desktop charger and you will survive a day...
Sent from my Nexus One using the XDA mobile application powered by Tapatalk

I switched to enoms which gave me a little better battery life. Also downloading juice defender made a noticable difference, I use the free version at the default settings. I also switched email to hourly which is adaquate for me. I dont run bluetooth unless I am using it, same with wifi, which is what I do with all my phones. I dont otherwise change my usage, dim the screen etc. Overall I make it through the day with typically about 35% left. Based on what I see here my usage would probably fall into the light to moderate range. To be honest I havent had a smartphone recently that did much better. I pretty much figure I gotta plug in every night in the modern phone world.

S_Dot said:
Strange. Before I was rooted my display would always be 1st or 2nd, along with android OS
After I rooted using Cyan, it was always 1st taking up more than 60%
Then I switched ROMS now its always 3rd or even 4th
Sorry dude.. try wiping batty stats and changing your brightness.. are you using live wallpaper? what about screen timeout.
Click to expand...
Click to collapse
As others have mentioned, the display uses the same amount of power no matter what rom you are using. So if display is 3rd or 4th, you have an absolutely crappy rom that is using battery probably 10x as fast (compared to same usage where display is 90% of the battery).
In simple terms, the higher % your battery is using, the more efficient your phone is being.*
*compared to same usage at same brightness running different software.

An addendum to juice defender. I had it on the default setting but changed schedule so that it lit up apn for 3 minutes out of fifteen instead of one, my email wasnt consitently downloading at one minute.
I noticed that you have gone to 5.0.6, how is your batt life now? I stayed away from it just because of the overrwhelming number of bad battery life posts on it and was surprised you went that way.

[Q] 625 hours of standby, how about you?

Samsung claim 625 hours of standby for the i9000, best case situation I know. But as it stands with 2.2 JPO I am losing roughly 8% per hour in standby under what I would call normal data syncing and what seems to be about 5% ph when all data is off and the signal is strong.
So rather than discuss causes in this thead I am just wondering would people put down their power consumption (if they noticed) and their firmware? It would be good to have an average before wondering how to fix what might not be a problem.

652 hours standby? lol where did u get that? heck doesn't the ipad have 30 days standby? and it has 3 battries!

I tried once overnight with flight mode on there i got 1% drop in 7 hours ... this was at JM2 original firmware. Normally i get 25% drop with normal use within 12 hours and juicedefender (switches on data connection once per half an hour for email sync).
Sent from my GT-I9000 using XDA App

dezshiz said:
652 hours standby? lol where did u get that? heck doesn't the ipad have 30 days standby? and it has 3 battries!
Click to expand...
Click to collapse
It has 2, but point taken.
And I got that information here:
http://mea.samsungmobile.com/ENG/mobile-phones/samsung-i9000-galaxy-s-specification

The biggest problem with the battery is the screen and white backgrounds ...It users double what a LCD screen dose with white backgrounds so when your on the net your battery will drain faster
http://blog.laptopmag.com/android-battery-test-reveals-droid-x-lasts-longest-amoled-handsets-trail

got-petrol said:
The biggest problem with the battery is the screen and white backgrounds ...It users double what a LCD screen dose with white backgrounds so when your on the net your battery will drain faster
http://blog.laptopmag.com/android-battery-test-reveals-droid-x-lasts-longest-amoled-handsets-trail
Click to expand...
Click to collapse
Standby means screen off.

I think the 625 hours standy means phone on, screen off, wifi/gps/data/3g off.

Yes and best case means tested in the factory so:
-No SIM Card
-Raw software (no apps installed)
-No external SD inserted
-Phone turned on and left there untill it turns it self off.
(read that somwhere cant remember where)
BTW: 31% Battery drain within 10h
-Processor overclocked (1,2GHz)
-Performance Govenor chosen on SetCPU
-Data deactivated 6h, Data connection active 3h used 2h
-Wifi on 1h, used 0.5h
-38mins on the phone
-37 SMS writen, 46 recieved
-1h Listening to Music (headphones)
-Running JPP/JPA with super optimized JP6-JPM
-All partitions ext4, looped ext2
Was that percise enough?;-)
Sent from my GT-I9000 using Tapatalk

shrooms90 said:
Yes and best case means tested in the factory so:
-No SIM Card
-Raw software (no apps installed)
-No external SD inserted
-Phone turned on and left there untill it turns it self off.
(read that somwhere cant remember where)
BTW: 31% Battery drain within 10h
-Processor overclocked (1,2GHz)
-Performance Govenor chosen on SetCPU
-Data deactivated 6h, Data connection active 3h used 2h
-Wifi on 1h, used 0.5h
-38mins on the phone
-37 SMS writen, 46 recieved
-1h Listening to Music (headphones)
-Running JPP/JPA with super optimized JP6-JPM
-All partitions ext4, looped ext2
Was that percise enough?;-)
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Yeah I suspect the "best case" too of course. But man, 31% in 10 hours? At my rate I would be flat in ten. Doing nothing, no screen interaction and minimal syncing.
I think mine is hardcore hardware knackered.
Also thanks for the specifics, that is a great insight.

nailerr said:
Yeah I suspect the "best case" too of course. But man, 31% in 10 hours? At my rate I would be flat in ten. Doing nothing, no screen interaction and minimal syncing.
I think mine is hardcore hardware knackered.
Also thanks for the specifics, that is a great insight.
Click to expand...
Click to collapse
U just remindet me, i forgot to say my screen is set to automatic, and most of the time its on the lowest setting. There is a big difference what kernel and format u use. When i had it set to jfs file system my battery was down before i got home (10h is a normal working day including the way to and from work). Most of the battery was used during the brake. Tomorrow at i will pay more attention ti the battery drain during brake and report again
Edit: got home at 6pm and my battery was on 69% now its 10pm 45% left and i was using the internet and tapatalk (over wifi) the whole time. So thats another 24% battery drain in 4hours of full usage.
Sent from my GT-I9000 using Tapatalk

shrooms90 said:
U just remindet me, i forgot to say my screen is set to automatic, and most of the time its on the lowest setting. There is a big difference what kernel and format u use. When i had it set to jfs file system my battery was down before i got home (10h is a normal working day including the way to and from work). Most of the battery was used during the brake. Tomorrow at i will pay more attention ti the battery drain during brake and report again
Edit: got home at 6pm and my battery was on 69% now its 10pm 45% left and i was using the internet and tapatalk (over wifi) the whole time. So thats another 24% battery drain in 4hours of full usage.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
I have offed all data and even the attempts to sync on my phone. The screen is minimum all the time. This is making me nuts here!
24% seems incredibly low for 4 hours of actual screen on time. This is an unmodified OS, just the new 2.2 JPO.

nailerr said:
I have offed all data and even the attempts to sync on my phone. The screen is minimum all the time. This is making me nuts here!
24% seems incredibly low for 4 hours of actual screen on time. This is an unmodified OS, just the new 2.2 JPO.
Click to expand...
Click to collapse
Its official jpa with superoptimized jp6-jpm kernel all partitions ext4 with ext2 loop. Syncs are turned off background data is on. I have minfree manager setup to keep as much of my ram free as possible. First ive.set it too high so my phone crashed. Actual setting from top (visible app) to bottom (hidden app):
40
60
90
125
128
130
Maybe thats one of the reasons?
Edit: by now i know that u can improve your battery life with differwnt things but i dunno what exately it is. Ive changed so many thigs the last 2 weeks. And sometimes my battery was empty @ midday and sometimes it lasted 1.5 days. Phone usage is about the same every day.
Sent from my GT-I9000 using Tapatalk

Screen on time will always be 10-20% drain per hour on the stock battery.
Anyone who thinks otherwise is kidding themselves, 10%/h is VERY optimistic, that's 10 hours guys
Sent from my GT-I9000 using XDA App

Well I used to get 1% drop every 8hrs of standby, this means that GSM radio is ON but no other functions are running. So if you do the math.. 600hrs is very possible in a certain condition.

android53 said:
Screen on time will always be 10-20% drain per hour on the stock battery.
Anyone who thinks otherwise is kidding themselves, 10%/h is VERY optimistic, that's 10 hours guys
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
25% per 2hrs of screen time seems to be the norm

It depends on what you are doing and what screen brightness. If you are playing a game at max brightness you could kill the battery in 2-3 hours. Watching low quality video at low brightness can go on for 8hrs
Sent from my GT-I9000 using XDA App

android53 said:
It depends on what you are doing and what screen brightness. If you are playing a game at max brightness you could kill the battery in 2-3 hours. Watching low quality video at low brightness can go on for 8hrs
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
I've noticed that the quality of a video wont really affect battery power that much.. compared to a VCD quality movie and a 720p (5mbps) I think the GPU can decode it very efficiently.
But I DO notice a difference between the stock player and mvideo player in terms of power usage.

First report for today:
Unplugged 6am listened to music for 1/2h,1 call for 2mins and installed juice plotter 15mins ago battery still on 100% (here its 9am now)
Sent from my GT-I9000 using Tapatalk

shrooms90 said:
First report for today:
Unplugged 6am listened to music for 1/2h,1 call for 2mins and installed juice plotter 15mins ago battery still on 100% (here its 9am now)
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
I'm starting to think your one is wrong! But in a good way..
With everything off bar the WCDMA connection I lost 6% in 10 hours. I suppose that is reasonable, but again the phone was doing absolutely nothing.

well I got a JPD firmware with lagfix
Even with screen off and flight mode on
it still drain at least 30% of battery during sleep
(Which it only drained less than 10% in JI1)

What's you fav battery saving tricks/tips/tools....

For me I switch off all my WiFi and 3g and turn powersavemode app on works like a charm 15% battery drain over 7hours....
Any tips on how to save battery w/o having to switch off WiFi/3g?
Sent from my LG-P970 using xda premium

15% drain in 7hrs... doing what??
I mean, I loose 4% in 8hrs sleeping [doing nothing] and if I turn on airplane mode it varely loose 1% in 8hrs sleeping

i loose 3 to 4 % on 8 hrs too with wifi off

Bit of games, calls and texts....
Is it possible to actually damage your batt by over charging, I know it was possible before, but some ppl tell me nowadays batt don't do that anymore...
Sent from my LG-P970 using xda premium

Zaihanzainal said:
Bit of games, calls and texts....
Is it possible to actually damage your batt by over charging, I know it was possible before, but some ppl tell me nowadays batt don't do that anymore...
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
I don't know man "a bit" is no accurate thing but I thing I have almost the same battery usage... I do a lots of txts...
now, for the overcharging... as far as I know all [or almost all] new electronic stuff that needs to recharge has a sensor for voltage and power, so when the batt is low or empty it tell you is the same when is fully charge it tells you and "cuts" the power supply... if you have some time look at your phone when is charging, when at 100% it tells you and "cuts" power, a few mins later it will be at 99% and inmidiatly starts charging again

6 hours sleeping it only drain about 2% from 37-35 yesterday
No special app used in my black right now,cause i'm waiting for the new updates
But to answer the title, it's Juice defender
It saves me a lot when i forget to turn off the conn
Sent from hell !

Felsar said:
I don't know man "a bit" is no accurate thing
Click to expand...
Click to collapse
Does "quite a bit" help haha
Sent from my LG-P970 using xda premium

I use JuiceBattery ultimate in order to save my battery, and still every night with no opened apps, about 12% drain. Is it normal?
Is it possible that Juicedefender does the opposite - draining the battery?

ohadz said:
I use JuiceBattery ultimate in order to save my battery, and still every night with no opened apps, about 12% drain. Is it normal?
Is it possible that Juicedefender does the opposite - draining the battery?
Click to expand...
Click to collapse
AFAIK,JD only disconnect the conn when you idle but i does run in the background
So,yeah it's possible
CMIIW
Sent from hell !

I've read that bad apps can cause battery drain too, is there a way to locate dem baddies?
Sent from my LG-P970 using xda premium

I honestly don't know how are you manage to get such low power consumption on your phones. Just today I unplugged my phone little more than 5 hours ago. I did absolutely nothing with it, it just lied on a table and I'm already down from 100 to 84%. Just to be clear, for those 5 hours wifi, gps and 3G was off all the time. I'm on stock Froyo 10e, some of the LG bloatware removed and replaced with so called energy efficient apps from the market (3g watchdog, battery monitor widget). The only two original LG widgets that I use are weather & clock (with manual updated weather) and contacts. I really don't know what I'm doing wrong but my phone with really minimal usage can't last more than 1 day .

RedmanDR said:
I honestly don't know how are you manage to get such low power consumption on your phones. Just today I unplugged my phone little more than 5 hours ago. I did absolutely nothing with it, it just lied on a table and I'm already down from 100 to 84%. Just to be clear, for those 5 hours wifi, gps and 3G was off all the time. I'm on stock Froyo 10e, some of the LG bloatware removed and replaced with so called energy efficient apps from the market (3g watchdog, battery monitor widget). The only two original LG widgets that I use are weather & clock (with manual updated weather) and contacts. I really don't know what I'm doing wrong but my phone with really minimal usage can't last more than 1 day .
Click to expand...
Click to collapse
I had probs with battery monitor, it drain batt like crazy so I uninstalled it and prob is gone... some of those apps kill more than what they save
the only apps I have is juiceplotter to monitor battery, cpuspy and android booster which I found very usefull cause it turn off everything: wifi, 3g, bluetooth, apps not in use; all in 1 click and as far as I know it really doesn't drain any battery or it's so minimal that it's not displayed

Ok currently I'm trying the higher voltage charger (5v) trick and I can see a huge difference ald I don't know how it works but 0% drop in 6.5 hours WiFi, 3g off and 10 sms Woot!
Sent from my LG-P970 using xda premium

Zaihanzainal said:
Ok currently I'm trying the higher voltage charger (5v) trick and I can see a huge difference ald I don't know how it works but 0% drop in 6.5 hours WiFi, 3g off and 10 sms Woot!
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
what trick is it?

Apparently cos our stock charger is only 4.8v and our batteries are 5v/1500mah so if we use a 5v charger somehow it helps with better charging and battery life, I'm using a bbm charger which is 5v
Sent from my LG-P970 using xda premium

well i root my phone then removed the system applications using -system app remover.
im getting a much better battery backup . at least 30-40 % better . as far as the stand by is concerned .
i play a lot of games and text a lot so phone does not last over 1.5 day now ,
earlier it was one day only.
so im relatively happy with this phone because the battery backup is better now.
hope a software update to gb will help even more

do you guys have a battery percent number of 99%?
my phone ALLWAYS skips the 99.. it goes from 100 to 98 in 10 min after doing nothing..
(it's in the nova rom, its with official stock and it's with cyano.. and batt stats are renewed enough..)
PS: not to mention how poor my phone is daily.. chargng in the night.. at the end of the day 20% (too little to have all day at school, too much to power it up at night.. )

Zaihanzainal said:
Apparently cos our stock charger is only 4.8v and our batteries are 5v/1500mah so if we use a 5v charger somehow it helps with better charging and battery life, I'm using a bbm charger which is 5v
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
Ah ok! I use 5v charger since i bought the OB. I charged it only 2 or 3 times with original charger and the battery life was a little lower than 5v charging

I reboot mine every morning. It seems to make some sort of background task started by alarm or something.
A normal day at work leaves me with 80% left.
If i don't reboot it will eat up the juice in just 5 hours.
Also juice defender helps quite a bit.
Sent from my LG-P970 using xda premium

K this has been helping me with my battery alot
1) install a new rom
2) using 5v charger
3) installing a firewall and prevent unnecessary stuff from connecting to 3g
4) uninstalling task killers(takes alot to restart the apps you killed)
5) uninstall battery monitoring apps (surprisingly)
6) use stock included lock screen
--------------------------------
Added:
7) uninstall anti virus apps*if you dare* (cos from what I understand Android has a sandbox type thing which traps viruses sorta so unless you go to alot of dodgy sites often you wont need it, imo a firewall is enough)
8) Turn off automatic updating for apps in the market
9) Turn off un-needed snyc features but do not turn off the "Background data" sync and "Auto sync" under the General sync settings or you might face problems going to certain sites, instead turn them off individually via the "manage Accounts" menu (I turn off mail snyc, fb snyc, watsapp snyc, contacts snyc)
Personally this had helped me alot in terms of battery....
Sent from my LG-P970 using xda premium

Low battery

My phone is having a really bad battery life.It can't last a whole day and it discharges extremely fast.I looked at "Battery" in settings and nothing looks suspicious.Even in standby mode it discharges like crazy ( overnight i lose about 30% of battery ).Phone is completely new.I don't want to disable live wallpaper, wifi, mobile data, sync etc. because i bought a smartphone for those features.Any other suggestions are welcome.

Aport said:
My phone is having a really bad battery life.It can't last a whole day and it discharges extremely fast.I looked at "Battery" in settings and nothing looks suspicious.Even in standby mode it discharges like crazy ( overnight i lose about 30% of battery ).Phone is completely new.I don't want to disable live wallpaper, wifi, mobile data, sync etc. because i bought a smartphone for those features.Any other suggestions are welcome.
Click to expand...
Click to collapse
That's normal for the stock ROM, flash my V3 ROM you'll have 2 or 3% drainage over night.

I get super draining aswell after flashing dmod v1. I can't be bothered to keep flashing roms so I'm waiting for cm or benzrom v4.
Sent from the dark side on my GT-I8190

Turn off your live wallpaper en weatherclock. Those 2 keeps the phone awake. I have with 3g allways on slight browsing loads of texting and whatsapp few calls and most of the time online on facebook, 20/27h of battery time. When i dont use my phone alot it can go up to 35/40h
Sent from my GT-I8190 using xda app-developers app

No live wallpaper and no weather clock. Most bloat ware removed, Using golden kernel hotplug governor and seeder. With benzrom I had 20+ hours with heavy use. Since dmod I get roughly 10-15 hours. 30% drains overnight.
Sent from the dark side on my GT-I8190

iKlutz said:
No live wallpaper and no weather clock. Most bloat ware removed, Using golden kernel hotplug governor and seeder. With benzrom I had 20+ hours with heavy use. Since dmod I get roughly 10-15 hours. 30% drains overnight.
Sent from the dark side on my GT-I8190
Click to expand...
Click to collapse
So strange,there are no significantly changes in DMod, compared to the base BenzROM! Essentially frameworks and apps are the same

I know man it doesn't make sense but I can't wait for another better rom that will hopefully fix this issue with a clean install.
Sent from the dark side on my GT-I8190

Sent from the dark side on my GT-I8190

Look at the massive discharges spikes after charging. I know I don't often get to charge it fully but this is really bad.
Sent from the dark side on my GT-I8190

iKlutz said:
Look at the massive discharges spikes after charging. I know I don't often get to charge it fully but this is really bad.
Sent from the dark side on my GT-I8190
Click to expand...
Click to collapse
Download Better Battery Stats to figure out which application is the guilty one.

Remove bloatware.

dariolob said:
So strange,there are no significantly changes in DMod, compared to the base BenzROM! Essentially frameworks and apps are the same
Click to expand...
Click to collapse
Yes but you're forgetting about build.prop tweaks, they play a big role when it comes to battery drainage.

I just installed Benz rom, so i am hoping for better battery life.But there is also one more thing i noticed.I installed no frills cpu and i noticed that minimum frequency is 1 ghz !!! I set it to 200 mhz and i think that will make a huge impact on battery.I will be posting my battery stats picture soon.

So many advises about installing other rom. I think you need to try to remove huge battery drainers first. Try to disable Picasa web-albums sync (this **** eats alot! ) and some other sync that you don't need. You need to change it for each Google account you use on your phone. That's all. This small change halped me alot with battery drain and, I hope, will help you.
Also, you can freeze apps that you don't need to. It can be made without root.
Sent from my GT-I8190 using xda app-developers app

iKlutz said:
Sent from the dark side on my GT-I8190
Click to expand...
Click to collapse
In screenshot you have a very weak gsm signal in your area. This drains your battery.
If you don't use 3G/HSPA mobile data, you can try to manual switch to 2G network (2G band use less power from your battery).
HTH,

Ok, so installing a new rom and messing with CPU frequencies did help after all.I installed Benz rom and changed minimum cpu frequency from 1 ghz to 200 mhz.Battery now lasts 2-3 days with light use and about 1.5-2 with medium use.Battery discharge overnight is about 10% with sync, wifi etc. turned on.

hmm,i dont know what apps you have installed on your phone,but when i installed Dropbox app few days ago, there was a massive battery drainage overnight...it eat my battery between 30-35% overnight...and it used to be only 3-5%...
of course i uninstalled the app and now its back to normal,only 3-5% drainage overnight(wifi and sync off)...

Check my "Obligatory Extended Battery Thread."
Sent from Spaceball One.

[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