My iPad is new, well mom bought it september, and I only opened the box a week ago. I put it to charge over night, and in the morning it says 98%. I have to replug it and let it charge more for it to say 100%. I'm thinking its because it turns off once it reaches 100 and 2% are drawn on standby. But u know it never hurts to ask. Plz report ur experiencez. Edit... Also how long it suppose to charge from 50% till full? How long battery lasts until replacement is needed?