So I use an iPhone 5, but today I found my old iPod Touch 4G 8 GB, and i decided to see if it would work. It is running 6.0, and the problem is that even though when charged it shows 100% charge, the second I remove it it goes to 97%. Note that I have not used it a lot, so I don't think it has anything to to do with being over used. Any suggestions?