Galaxy S2 battery drains fast

[ashiquerahiman]

I am Galaxy S2 user from Dubai,I am using it for four months comfortably,from last month battery starts drain fast,if I fully charged it will stay only for maximum 12 hours,it was upto 30 hours before.my friends also facing the same issue,please help.I suspect some updates troubled us.

 

[iT0mm0]

firstly download the latest siyah Kernel

set max cpu as 1200
min cpu as 200 ( 100 uses more battery)

Ondemand is a fantastic governer

tick apply at boot

reboot

when booted turn on aeroplane mode

switch phone off for a minimum of 60 seconds

restart and turn off aeroplane mode

8 hours sleep and only 3% battery used

HTH

 

[caloyzki]

firstly download the latest siyah Kernel

set max cpu as 1200
min cpu as 200 ( 100 uses more battery)

Ondemand is a fantastic governer

tick apply at boot

reboot

when booted turn on aeroplane mode

switch phone off for a minimum of 60 seconds

restart and turn off aeroplane mode

8 hours sleep and only 3% battery used

HTH

where i can find this to my phone? i dont know where i can look all what you said. pls be specific. ty

 

[iT0mm0]

before i go into great detail can i ask which kernel and rom combination you are currently using please, its only because its going to take me a long time to link if you are using something completeley alien to me

 

[caloyzki]

before i go into great detail can i ask which kernel and rom combination you are currently using please, its only because its going to take me a long time to link if you are using something completeley alien to me

baseband : LPS

kernel : 3.0.29-siyah-v3.1.2+gm@gm-mint #28

build number : andyX rom v11.

is this a good combo?

 

[iT0mm0]

baseband : LPS

kernel : 3.0.29-siyah-v3.1.2+gm@gm-mint #28

build number : andyX rom v11.

is this a good combo?

different to what i use but easily transferable

reboot to recovery and set the default profile to battery (in kernal options)

reboot and download extweeks

now set cpu governer to ondemand

set min to 200

max to 1200

tick apply at boot

reboot

when rebooted press and hold power button you will see aeroplane mode, click on this (you will lose all connections)

switch phone off

leave for at least 60 seconds (it clears some big wakelocks)

reboot and switch off aeroplane mode ( you can tell as wifi, 3G etc is back)

if you leave alone for 5 - 10 mins have cpu spy installed you will now see that deepsleep is now working

 

[caloyzki]

different to what i use but easily transferable

reboot to recovery and set the default profile to battery (in kernal options)

reboot and download extweeks

now set cpu governer to ondemand

set min to 200

max to 1200

tick apply at boot

reboot

when rebooted press and hold power button you will see aeroplane mode, click on this (you will lose all connections)

switch phone off

leave for at least 60 seconds (it clears some big wakelocks)

reboot and switch off aeroplane mode ( you can tell as wifi, 3G etc is back)

if you leave alone for 5 - 10 mins have cpu spy installed you will now see that deepsleep is now working

where to download extweeks?

 

[iT0mm0]

market

https://play.google.com/store/search?q=extweeks&c=apps

 

[caloyzki]

market

https://play.google.com/store/search?q=extweeks&c=apps

i dl already the apps. but under cpu i dont see anytning here it says governor to ondemand. where i can find that?

 

[iT0mm0]

misc > default cpu governer

ondemand works for me but lulzactive is also a good one, although the wakelocks were unbelievable

 

[caloyzki]

different to what i use but easily transferable

reboot to recovery and set the default profile to battery (in kernal options)

reboot and download extweeks

now set cpu governer to ondemand

set min to 200

max to 1200

tick apply at boot

reboot

when rebooted press and hold power button you will see aeroplane mode, click on this (you will lose all connections)

switch phone off

leave for at least 60 seconds (it clears some big wakelocks)

reboot and switch off aeroplane mode ( you can tell as wifi, 3G etc is back)

if you leave alone for 5 - 10 mins have cpu spy installed you will now see that deepsleep is now working

ok. i am in ondemand now. how about set min to 200
max t0 1200??? this is under where?

 

[iT0mm0]

goto system settings>Rom control > performance, and set it from there

this is where i cant help anymore as im on AOSK

hopefully someone on a sammy rom can take over

 

[caloyzki]

goto system settings>Rom control > performance, and set it from there

this is where i cant help anymore as im on AOSK

hopefully someone on a sammy rom can take over

i got it my friend. thank you so much for ur help,
how am i gonna set it back to default the one that i tweak in kernel options? ty this is my last question my friend.

 

[Kie]

goto system settings>Rom control > performance, and set it from there

this is where i cant help anymore as im on AOSK

hopefully someone on a sammy rom can take over

Sammy based roms don't have a ROM Control setting

OP, you should download a program called Voltage Control. It's the easiest way to set yuor clocks as well as choose the governor.

 

[caloyzki]

Sammy based roms don't have a ROM Control setting

OP, you should download a program called Voltage Control. It's the easiest way to set yuor clocks as well as choose the governor.

hi kie, i just downloaded voltage control. what is the best settings that i need to change?

my battery drains so fast and i downt know what is going on. cannot get 1 day of use. it is so frustating.

 

[Slug]

what is the best settings that i need to change?

There are no "best settings", as every processor behaves differently. The most important thing is to test any changes you make thoroughly before setting it as the boot-up default.

 

[Kie]

hi kie, i just downloaded voltage control. what is the best settings that i need to change?

my battery drains so fast and i downt know what is going on. cannot get 1 day of use. it is so frustating.

What Sluggy said. You can try my settings as a basis. I'm comfortable with those settings, and they give me an awake day's usage (7am-11pm) by which time it's usually down to 20-25%.