Ok so ive tried underclocking. Froze and automatically shut off my fone. Turned off gps and auto sync. Not much better but improved a lil. Just downloaded battery doctor and cycle charged it over night. Made a world of difference! Im at 42% and ive been using my fone on and off thruout the day. Usually have to charge again by 2pm. Im a heavy user of my 4g. So i know how fast this thing drains. Hope this helps out everyone.