3GS battery replacement

Mi Problema

The old battery was getting to the point that it wouldn't last more than a couple of hours.

Mi Solución

I've done this before on a couple of iPhones for myself and for others, so this was easier than for a first-timer. Because of the care I took, the replacement was done in about an hour.

Mi Consejo

Take your time, keep all the screws in the order you removed them so they are put back in the right places. Don't force anything.