Hey new user here I just bought a used ipad (owner had it since april) and I have never owned an apple product but I thought this thing got 10 hours or around that. With 4.2 which is all I have used I get about maybe 5 hours gaming (what I do mostly. Also I am at full brightness and probably streaming music. I am jailbroken so I don't know if that matters. Is this normal or should I take it to apple store will apple replace it since it's still under warranty. Also I wanted to add that it takes about 8 hours to charge.