My Ipad 1 (bought first week it came out) and my husband's Ipad Ones (his was bought August after they came out) are showing degradation of batteries. Mine is dedicated for music only, taking the place of my Touch whose battery is totally kaput LOL. My Ipad 3 is doing just fine, being used a lot daily, bought the day it came out. My intention, if the Ipad 5 is sufficiently lighter and thinner, hopefully even faster processor, is to buy a 64 GB LTE and my husband will inherit my 3. It has plenty of life left.