I restored my iPhone as new twice to original 4.3.3 with iFaith because of battery issue. Seems like my battery is draining fast. At 2:30 pm today I was at 16%. After constant usage it went down to 8% in about 10 minutes. My iPhone is jb'ed with only one Cydia app, gv phone extension. It's jb'ed with jailbreakme.com Since I restored as new twice and don't see a difference what else can I do?