15 - 45 Minuten
Battery was not holding charge and still had several months on my contract. Didn't want to replace the phone.
Besides dealing with the 5 point screws, it went without a hitch. Apple didn't want to make it easy.
Needed the special tool for the screws and had to order it so it delayed the battery replacement. Even with the tool the screws were not easily removed, but I wasn't going to give up.