25 - 45 minutos
The battery would conk out after about 20 minutes, and I like to work out for an hour to music, see the problem?
It went pretty well, the instructions on the guide were terrific!
Remember to be careful when replacing the logic board, it is set very close to the click wheel and could take a few tries. Also, if your case is bent at the corners, pliers will help fix the shell.