[Galaxy S II Android Development] GregX80:
Ok guys. I've just finished my first cycle on 5.78 after revert from 5.80. I've applied some settings from extreme profile v5.80 + some my settings. Result isn't very bad I think ;) but I'm sure it can be better after few cycle. As I promised I'm publishing all my settings. Undervolting is quite strong so if you get some freeze or SOD don't blame kernel - kernel is rock stable with this settings for me but it doesn't have to be for you.

At the beginning some overall tips for battery life:

That's what I always do when I install new ROM.

1. Take Titanium Backup or the like and sort out these app if you not going to use them (make backup first in case if you need them in the future):

- GameHub

- Gmail.apk if you use Email (If have more than one e-mail)

- or Email.apk and Exchange Service if going to use mail.apk

- IM

- Kies

- KiesAir

- KiesWifi

- Mini Diary and Mini paper

- MusicHub_xx

- ReadersHub

- SamsungApps or Account or whatever you have there

- SamsungAppsUNA

- SamsungIM

- SamsungPushService

- All Software Update things

- PressReader

- All SNS (disclaimer, accountFb and so on)

- Talk

- Talkback

- Voice Search - it's always pisses me off

- WiFi sharing

- WiFi sharing manager - These two probably don't do anything wrong right now but I still remember them from GB ;)

2. Go to the phone Settings and:

- WiFi --> Advanced --> Network notification: OFF

- Data usage --> Set mobile data limit: OFF

- Data usage --> Set mobile data limit: OFF

- Display --> Brightness --> Automatic brightness: AUTO

- Display --> Screen timeout --> 30sec

- Location services: All of them OFF (keep GPS off always until you need it, Location&Google Serch always OFF, Google's location service turn it on only if some apps need them to determinate location save location in app and turn it off)

- Back up and reset: Turn everything OFF and if you need back up manually.

- Date and time --> Automatic date and time: keep it on for some time after installing new ROM and later OFF

- About phone > Software update: You should have it uninstalled but if you haven't turn everything there OFF

3. Make sure your mobile provider uses FAST DORMANCY: If YES keep it ON --- if NO turn if OFF

- samsung roms dial *#*#9900#*#*

- AOKP or CM9 download from Play Store FastDormancy Toggle

4. Go to the Play Store get BetterBatteryStats and sort out all big wakelocks.

5. Go to the Play Store and get GreenPower battery saving app or similar:

- my settings: autosync every 1 hour, Screen on wifi and data on

- some user complain about about battery saving apps wakelocks but rules are simply --> if you let your battery saving app auto sync every 1h for 2 minutes you will get 2 minutes of wakelock an hour. So in 24h you can get 48 min of wakelock which is in fact autosync time or I'm mistaken? Anyway this really works look at my battery stats.

I've attached screen shots and ExTweaks profile to download (you have to extract it first and place it on your sd card to data/.siyah).

GPU freq and voltages: 62Mhz - 800mV, 100Mhz - 825mV, 133Mhz - 850mV, 166Mhz - 875mV - If you want to play game you have to change them. These settings are good for battery saving not for games.

If you feel that scrolling isn't smooth in your phone anymore go to:

Extweaks --> SCREEN --> TOUCH SCREEN LOCK FREQ and set it to 500 - 600Mhz

If you wolud like to get more power when screen on and still have great battery saving during screen off:

ExTweaks -- > CPU:

LOAD_H0 = 40%

LOAD_H1 = 30%

FREQ_MIN = 600Mhz

SCHED_MC = 0

More power? SCALING_MAX_FREQ = 1200Mhz

Apply settings wait about 3 min. then restart your phone.

Now undervolting. First at all obviously these settings can lead to freezes. If you lost some data don't blame me - and kernel either :).

1200Mhz - 1175mV

1100Mhz - 1125mV

1000Mhz - 1075mV

900Mhz - 1025mV

800Mhz - 975mV

700Mhz - 950mV

600Mhz - 925mV

500Mhz - 925mV

400Mhz - 850mV

300Mhz - 825mV

200Mhz - 825mV

If you get freezes 200 - 600Mhz +25mV. If still random freezes everything apart from 500Mhz +25mv. If still freezing don't blame kernel :D and find your own settings.

Happy playing and good luck.