My iPad 2 had subpar battery life since I started using it 3 days ago. But after reading a thread on here that said the ping service was killing the battery life of devices running 4.3. So go to settings>general>restrictions and turn ping off. I did it last night and my battery is doing great. Normally after about a hour of use I'm at about 80% but now after nearly 2 hours of use I'm still at 95%. Good luck.