Database Users

battery problem

I've been using 2.2 firmwares since JPA and everytime i cant manage to get more tan 16 hours of usage with data activated.
when i was using 2.1 i could get 36 hours with the data turned on all day
anyone got any suggestion?
thanks!!

baicunko said:
I've been using 2.2 firmwares since JPA and everytime i cant manage to get more tan 16 hours of usage with data activated.
when i was using 2.1 i could get 36 hours with the data turned on all day
anyone got any suggestion?
thanks!!
Click to expand...
Click to collapse
When you flash a new firmware, do you flash wid a full battery charge?.....that makes a difference cos the os considers that battery level to be the Max level at that time.... .. i read bout this in lestats dev page....cheers!
sent from the amazing galaxy 3

today i had to flash my phone again and i was in a hurry so i flashed it without charging to 100%....will it make any difference??
and i came across this app for this purpose...
http://forum.xda-developers.com/showthread.php?t=1024867
but i am confused......anyone??

It may have to do with cpu scaling also.I installed cpu master and saw that the cpu is always on 667mhz and not down-scaling when not in use

[email protected] said:
today i had to flash my phone again and i was in a hurry so i flashed it without charging to 100%....will it make any difference??
and i came across this app for this purpose...
http://forum.xda-developers.com/showthread.php?t=1024867
but i am confused......anyone??
Click to expand...
Click to collapse
Yup the app deletes the battery calibration file when it is fully charged ....so it does set ur battery to Max level.....it shd work....
sent from the amazing galaxy 3

Joelj08 said:
Yup the app deletes the battery calibration file when it is fully charged ....so it does set ur battery to Max level.....it shd work....
sent from the amazing galaxy 3
Click to expand...
Click to collapse
ok so i used this app today and will post results about the battery performance....

Joelj08 said:
When you flash a new firmware, do you flash wid a full battery charge?.....that makes a difference cos the os considers that battery level to be the Max level at that time.... .. i read bout this in lestats dev page....cheers!
Click to expand...
Click to collapse
I dunno about this, after I flashed a new rom(60% charge) the battery was fine for a few days(around 26 hrs backup)...but recently the battery backup has dropped to less than 8 hrs!

Battery Drain [Help]

Hi guys.
I'm having a weird battery drain issue. I keep my data network on all day long but it usually lasts 24-36 hrs without needing a recharge.
Since yesterday though it has suddenly stopped lasting for even 12 hours even when the data network is off. No live wallpaper. Gallery not working in the background. The battery history shows 90% usage by Display usage when the phone is not being used at all in the night when i am sleeping.
Any ideas what i can do to improve the battery life??

hahahaha so its time for you to shift to STOCK ROM
have a great day

flores.diane02 said:
hahahaha so its time for you to shift to STOCK ROM
have a great day
Click to expand...
Click to collapse
I have Stock JPM, just that it's rooted and deodexed and JIT mod

flores.diane02 said:
hahahaha so its time for you to shift to STOCK ROM
have a great day
Click to expand...
Click to collapse
If you dont have anything to say just dont say it. Im using custom rom, Kyrillos 5 beta 2 non OC and battery life is much better than stock rom.
Sent from my GT-I5800 using XDA Premium App

flores.diane02 said:
hahahaha so its time for you to shift to STOCK ROM
have a great day
Click to expand...
Click to collapse
very bad to see people making fun of others in forums..!!!! we were all a noob someday!!
try going onto lestatious or kyrillos..!!! even indroid!! all has cool battery life

Try my ROM, if you are looking for a safe ROM.
http://forum.xda-developers.com/showthread.php?t=1079052

SE Stock Rom Advantage!

Hello All,
I noticed there are a lot of posts regarding Battery Usage & Optimization...
I tried many many combinations of custom roms, basebands and kernels and I always face the same battery problem especially when 3G/MobileData is switched on.
I admit that Sony Ericsson gave us a ****ty stock rom with poor kernel however It's still the best rom in managing battery usage.
I made a small comparison on Stock rom VS Custom roms with 3G/MobileData left switched-on and I found the following:
Custom rom(s): battery drain down very fast it goes for 100% to 1% in less than 8 hours (normal apps installed)
Stock rom: battery lasts for 2-3 days with normal daily phone usage (same apps installed as i did in custom rom)
Please share your opinions.
Thanks,
Ayman

I don't agree at all...
Custom roms can have just as good, if not better, battery life.

I personally think this was a good idea. Nice post and info. Just curious, how long did you do this study with the data you got?
Sent from my X10i using XDA Premium App

hey guys, i too have this issue, i dnt know if its device specific. ive had the phone since march(2010) last year and have been modifying it with the great mods that the devs hav given us. everytime i install a custom rom i just get unusual battery drain, like yesterday, i followed instructions to the letter and installed tripnravers miuifroyo 1.0.8 and i lost 10% battery in like 20 minutes n ive hardly used it :-(. so nowadays i stick wiv a modified stock 2.1(ewjet to b exact). im gna buy a new battery and see if i get the same results. i really wna use a custom(2.2+)rom but the battery problems are really putting me off, theres so many people out der that arent really having ny battery drain whcih jus dus my head

Voelker45 said:
I personally think this was a good idea. Nice post and info. Just curious, how long did you do this study with the data you got?
Sent from my X10i using XDA Premium App
Click to expand...
Click to collapse
Thanks Voelker BTW this is my first Thread in XDA, I used to use SE 2.1 stock rom till the first stable Froyo custom rom came out. I switched to Froyo then I started to notice this around 4 months ago and I tried many combination and a lot of optimizations to find out the best one although Stock rom was always better.
@fiscidtox:
I love Foryo and GB much much more than Eclair I currently on CM6 v6 Wolfbreak
Could you please tell me how the battery lasts on your custom rom while MobileData is left switched-on?
Thanks,
Ayman

I get a full day..
If you mean stock with no tweaks then maybe it would last longer, but a lot of that would be not having jit enabled...

sofir786 said:
hey guys, i too have this issue, i dnt know if its device specific. ive had the phone since march(2010) last year and have been modifying it with the great mods that the devs hav given us. everytime i install a custom rom i just get unusual battery drain, like yesterday, i followed instructions to the letter and installed tripnravers miuifroyo 1.0.8 and i lost 10% battery in like 20 minutes n ive hardly used it :-(. so nowadays i stick wiv a modified stock 2.1(ewjet to b exact). im gna buy a new battery and see if i get the same results. i really wna use a custom(2.2+)rom but the battery problems are really putting me off, theres so many people out der that arent really having ny battery drain whcih jus dus my head
Click to expand...
Click to collapse
You must be doing something wrong!
10% in 20 mins isn't normal.
I'm sure if you left it settle this would rectify itself though.

I think the biggest advantage of the stock kernel so far is stability, but the ongoing development for the custom kernel is sucessful to implement some problems such as battery drain caused by unability to go into deep sleep etc..

I never understood needing more than 24 hours on a charge. Charge it while you're sleeping you wont be using it then anyway.

Even if you like the 2.1 Stock ROM for any reason (Stability,Battery,etc) and don't like all these awesome 2.2 and 2.3, you should at least use Eric's JET ROM which is based on the original ROM has no stability issues and has faaaaar better battery life.
But seriously, I`m using Custom ROMs since the first 2.2 ROM by Z and never even cared to get back to the stock ROM.

When I use Wifi custom roms have almost the same battery life as the stock rom. But since I can't connect to wifi at work on any custom rom, im forced to use 3g.. and I need to charge my phone twice a day with almost no usage.

pngface said:
When I use Wifi custom roms have almost the same battery life as the stock rom. But since I can't connect to wifi at work on any custom rom, im forced to use 3g.. and I need to charge my phone twice a day with almost no usage.
Click to expand...
Click to collapse
why not only connect to 3g when you are using it?

fiscidtox said:
You must be doing something wrong!
10% in 20 mins isn't normal.
I'm sure if you left it settle this would rectify itself though.
Click to expand...
Click to collapse
im pretty sure im doin the steps right, but as u sed leaving it to settle shud help this, im gna buy a new battery nyways and try again. i think the wrong thing im doin is not letting it settle, rather i see the battery drain n i jus end up flashing bak to stock. but i shall give wot u sed a go. thanks

fiscidtox said:
why not only connect to 3g when you are using it?
Click to expand...
Click to collapse
I have it set to switch to 2g when the screen is off (I need it on all the time for IM )

can't wait till gingerbread comes out. if the performance is like the arc then I will just stick with the stock rom.

sofir786 said:
im pretty sure im doin the steps right, but as u sed leaving it to settle shud help this, im gna buy a new battery nyways and try again. i think the wrong thing im doin is not letting it settle, rather i see the battery drain n i jus end up flashing bak to stock. but i shall give wot u sed a go. thanks
Click to expand...
Click to collapse
Let it settle for at least two days to see improvement.
Your battery needs to adjust, much like letting your phone build a cache, in order to really see how the rom will effect anything.

Im using the stock rom and my battery lasts a maximum of 2 days with this tweaks: http://forum.xda-developers.com/showthread.php?t=934486
I dont use 3g at all and i use wifi sometimes (session lasts only 10 mins or so)
Brightness is set to "middle" also

Sorry dont agree..
I use wolfbreaks latest rom with the undervolt module.
Juice defender only enables my wifi when i am at home...all other times i have data on with facebook sync.
I now get the same battery life as i did on stock 2.1
Currently I have been unplugged for 1day and 12 hours and I am still at 38%.

fiscidtox said:
why not only connect to 3g when you are using it?
Click to expand...
Click to collapse
3g is useful incase of using Apps such as viber, whatsapp, IM and Gmail as it makes you online and reachable all of the day.

gregbradley said:
Sorry dont agree..
I use wolfbreaks latest rom with the undervolt module.
Juice defender only enables my wifi when i am at home...all other times i have data on with facebook sync.
I now get the same battery life as i did on stock 2.1
Currently I have been unplugged for 1day and 12 hours and I am still at 38%.
Click to expand...
Click to collapse
Honestly I didn't try the undervolt module with wolfbreak's rom, I thought It was developed for stock rom only....I'm gonna give it a try and I'll be back to you with the result.
Thanks,
Ayman

Custom ROM with the best battery life :)

Hey guys,
I have played around with a few different roms for my SGS2 and was wondering which one has the best battery life in your experience?
Cheers

I honestly think stock ke7.
Sent from my GT-I9100 using XDA App

I am using Litening rom and my phone isn't reaching 2 days of battery life like some people do with this rom

darkstar09 said:
Hey guys,
I have played around with a few different roms for my SGS2 and was wondering which one has the best battery life in your experience?
Cheers
Click to expand...
Click to collapse
That's an almost impossible question to answer as there are so many different factors involved which can affect battery life both on a custom rom and a stock one for example.
signal strength
push
gaming
screen brightness
Everyone will have a different experience and your best bet is to try different rom's and choose the one which suits you as a rom which is great for them may not be great for you.

If some rom creator would make make a black-red theme for his mod it would be probatly the best mod... Of course with all other goodies and tweaks.
Black-red theme because it would drain the lowest energy from the battary in the standart screen mode, but since we all use mostly different apps with different colors it will vary anyway.

To be fair, although it is purely anecdotal, people who have tried different ROMS while going through the sameness of their daily lives should be able to make a relatively valid comparison of battery life.

All the custom ROMs out at the moment are extremely close to stock, so I doubt there's much difference.
Sent from my GT-I9100 using XDA Premium App

droidluck said:
I am using Litening rom and my phone isn't reaching 2 days of battery life like some people do with this rom
Click to expand...
Click to collapse
2 days?? I'm gald to reach one day.. I just flashed lite'ning V 1.3. Hope to reach one day without any problems..
have a nice day
hattrick

It appears the battery indicator is often way off. I let mine drain as much as it could til it would not boot at all, then charge it for 6 hours. Now it seems to last twice as long on stock (2 days with a lot of use)

Kevincod said:
It appears the battery indicator is often way off. I let mine drain as much as it could til it would not boot at all, then charge it for 6 hours. Now it seems to last twice as long on stock (2 days with a lot of use)
Click to expand...
Click to collapse
I'm going to try this right now. I'll just let it stream some music over wifi at a high bitrate to drain it quickly. And using GPS, Blue-tooth. Playing music through PowerAmp at the same time.

Kevincod said:
It appears the battery indicator is often way off. I let mine drain as much as it could til it would not boot at all, then charge it for 6 hours. Now it seems to last twice as long on stock (2 days with a lot of use)
Click to expand...
Click to collapse
That would be great if true... I will try it too.

mguel said:
That would be great if true... I will try it too.
Click to expand...
Click to collapse
Let us know how it goes

I'm having excellent battery life with ke2. I personally had problems with ke7.
Sent from my GT-I9100 using XDA App

i have a great battery life with KE8 guys... pls try it & then comment...
its too good...i recommend litepro 1.3 for every SGS2... its the best i have ever had so far....

Same here
Sent from my GT-I9100 using XDA App

That would be funny if a lot of the battery problems are actually because we keep thinking it is flat when it isn't - it is just being mis-reported. Kind of iphone batterygate in reverse.
I had a lock up on my device the other night but didn't realise until the following morning when I found the device unresponsive and stuck on my last screen. Although I had to pull the battery to regain control, the screen had stayed on all night because of the freeze and the battery meter graph was red for about 7 hours. The screen was still on and bright before I pulled the battery though.
Think I will also try ignoring the meter today.

darkstar09 said:
Hey guys,
I have played around with a few different roms for my SGS2 and was wondering which one has the best battery life in your experience?
Cheers
Click to expand...
Click to collapse
stock KE2 and stock KE8 is best
ke7 is a nightmare

Using stock ke8 got about 30 hours with juice defender, constant wifi usage and app store and constant browser usage
Sent from my GT-I9100 using XDA Premium App

droidluck said:
I am using Litening rom and my phone isn't reaching 2 days of battery life like some people do with this rom
Click to expand...
Click to collapse
+1!! 10 characters **** so I have to keep typing

Thank you guys for all your informations.

Best Stock rom for battery life

Hey guys i want to switch to stock rom ..! so just want to ask which stock rom will give me good battery life or any stock rom+ custom kernel combination will give me a good battery life ..
Thnx

I'm getting great results on OMKJ4. Much better than anything else I've used on the S2. If I push my luck I can get 2 days plus the night between (not 2 full days though but I suspect the 2000mah battery would let me if I could actually lay my hands on one).
(There are a lot of issues though in flashing OM builds on anything but an SC-02C)

evildave_666 said:
I'm getting great results on OMKJ4. Much better than anything else I've used on the S2. If I push my luck I can get 2 days plus the night between (not 2 full days though but I suspect the 2000mah battery would let me if I could actually lay my hands on one).
(There are a lot of issues though in flashing OM builds on anything but an SC-02C)
Click to expand...
Click to collapse
u have 2000mah battery .. omg then u will get great battery life on all custom roms

Running KI3 (2.3.5) full stock. Getting almost 2 days with heavy usage
Sent from my GT-I9100 using xda premium

On I9100XWKI4 2.3.4 CSC - OXXKI2 i had 4d10h. Best battery lifetime from all of firmwares that i used. Rest of them i only get 1d10h-2d2h.

Rexton270 said:
Running KI3 (2.3.5) full stock. Getting almost 2 days with heavy usage
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
ohh thnx alot for the reply

Universeal said:
On I9100XWKI4 2.3.4 CSC - OXXKI2 i had 4d10h. Best battery lifetime from all of firmwares that i used. Rest of them i only get 1d10h-2d2h.
Click to expand...
Click to collapse
thank you too .!! also dont u use any custom kernels for better battery results ?

Well best battery life depends on how you are using the phone. Display On time should be the figure to find out which one is performing best.
I am on KI8 atm, Display On time is very good, around 5.5 h, but it drains battery a lot compare to old KF3, overnight drain was 2/3% on KF3, but now it is 10+%! Now I'll use it for another day and see if it drains the same again then I'll be moving to KI3, which I previously used and loved.
Maybe only me but I've had good luck with the ROMs which end up with 3

ithehappy said:
Well best battery life depends on how you are using the phone. Display On time should be the figure to find out which one is performing best.
I am on KI8 atm, Display On time is very good, around 5.5 h, but it drains battery a lot compare to old KF3, overnight drain was 2/3% on KF3, but now it is 10+%! Now I'll use it for another day and see if it drains the same again then I'll be moving to KI3, which I previously used and loved.
Maybe only me but I've had good luck with the ROMs which end up with 3
Click to expand...
Click to collapse
ohh thnx a lot for the info mate

Rexton270 said:
Running KI3 (2.3.5) full stock. Getting almost 2 days with heavy usage
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
With the stock battery?
And please define heavy usage (time on wifi/mobile data, screen on).
I'm starting to get worrie about my phone, he barely hits 20 hours with what i consider average usage.

fabiocastilhos said:
With the stock battery?
And please define heavy usage (time on wifi/mobile data, screen on).
I'm starting to get worrie about my phone, he barely hits 20 hours with what i consider average usage.
Click to expand...
Click to collapse
my phone doesn't even give me more than 6 hours -.-'
which is pathetic n i need to travel in a while... which can create a lot of problems to me if my phone died out while traveling

Hello ! I would like to recommand you MIUI rom, I have a fantastic battery life on it. =]

On I9100XXKI4 ... i can hit 2 days easy... with 2-3 of hours of 3g calling and screen being on for 3-5 hours. Always have background data syncing between 2 google accounts, 1 fb and 1 twitter ... yeah i do put my phone in no data mode overnight.

Rexton270 said:
Running KI3 (2.3.5) full stock. Getting almost 2 days with heavy usage
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
halo friend , i am new here.......
stock rom means original rom?
2.3.5 really can last for for 1day ++?tanks

strenx said:
Hello ! I would like to recommand you MIUI rom, I have a fantastic battery life on it. =]
Click to expand...
Click to collapse
thank you i have used miui rom

suhail_kapoor said:
On I9100XXKI4 ... i can hit 2 days easy... with 2-3 of hours of 3g calling and screen being on for 3-5 hours. Always have background data syncing between 2 google accounts, 1 fb and 1 twitter ... yeah i do put my phone in no data mode overnight.
Click to expand...
Click to collapse
ohk mate thnx for the reply .. but presently im going to try out KI3

I lose 2% overnight (7-8 hours) on standby with the following:
ROM: XWKJ1 stock
Kernel: CF-Root XXKI4
Wifi: enabled with access point in the same room
Sync: WhatsApp, Google Contacts, GMail, Google Calendar
Widgets: Clock only
SetCPU: 200-500Mhz conservative on 'screen off'
Frozen apps: all non-essential Samsung (MusicHub, etc.)

fabiocastilhos said:
With the stock battery?
And please define heavy usage (time on wifi/mobile data, screen on).
I'm starting to get worrie about my phone, he barely hits 20 hours with what i consider average usage.
Click to expand...
Click to collapse
20 hours isn't bad. Bear in mind this is a smart phone with big screen & cloud (almost continuos internet connection). Wifi is about 30-50 min, 5-12 sms, 30-40 min of calls (via BT headset), 4 emails (updates with push or fetch in 30 min interval), RSS,weather (every 3 hours). Market, Samsung apps browsing - 40-50 min. GTalk 24/7 ,eBay - 15-20 min.Twitter every 30 min, FB-every 4 hours (not a big fan of it ). Games up to 2 hours. Few widgets (weather, email,clock,calendar). I am on Vodafone now, and almost always on H+, so that also affects battery life. Some say that on 2G network you get better battery life, but my experience is opposite.
And ROM yes, full stock ( I mean no custom kernels etc).

Ki8...54 hours...medium user.
Sent from my GT-I9100 using XDA App

anshmiester78900 said:
my phone doesn't even give me more than 6 hours -.-'
which is pathetic n i need to travel in a while... which can create a lot of problems to me if my phone died out while traveling
Click to expand...
Click to collapse
Is your phone new? My phone was prety bad first week, then, after 7-8 charges is now much much better and stable. Also I was on 2.3.3 before and battery drained fast... Very fast (6-8 hours max)
---------- Post added at 10:14 PM ---------- Previous post was at 10:09 PM ----------
dannysheimy said:
halo friend , i am new here.......
stock rom means original rom?
2.3.5 really can last for for 1day ++?tanks
Click to expand...
Click to collapse
When got my phone it had 2.3.3 and it was really bad - up to 8 hours .
After flashing 2.3.5 easily getting 2 days ( see my other post with some usage).
---------- Post added at 10:16 PM ---------- Previous post was at 10:14 PM ----------
anshmiester78900 said:
ohk mate thnx for the reply .. but presently im going to try out KI3
Click to expand...
Click to collapse
Go for it, but make sure you have correct CSC as well, or KIES wont "talk" with your phone. After flashing 2.3.5 do factory reset as well