Fed Up With This Battery

[Encerspay45]

So, my S3 has been getting horrible battery drain lately.
I've gone through a Samsung Impression, LG Optimus V, iPhone 4, and now this S3.
Every single phone I have has paled in comparison to the battery of my friends' iPhone 4S/5's.

I'm currently rooted on 4.2.2 running the latest Stable of M-ROM on xda. (great ROM by the way, the absolute best I've ever had, on any phone)

I just need any and all battery tips.
Clock speeds, governors, kernels, tweaking,
Lay it on me.
I need it.

 

[iHackPro]

I run Powersave mode on CM, look for it in settings. Not hard to figure out. And, there's this: Amazon.com: Hyperion Samsung Galaxy SIII 4200mAh Extended Battery + Pebble Blue Back Cover (Compatible with Samsung Galaxy S III GT-i9300, AT&T Samsung Galaxy S3 Samsung i747, Verizon Samsung Galaxy S3 Samsung i535, T-mobile Samsung Galaxy S3 Samsung

4,200 mAh, double the battery it comes with.

A kernel would be your best bet as it controls your battery life more than anything.