Comment by YZF

I just spent a few hours [this past weekend] trying to replace a battery on an old iPod Touch and botching it (I'll blame my crappy soldering iron). Everything about that was a massive pain, prying the case open, dealing with all the glue inside, de-soldering the old battery.

I thought I did everything right but then the thing wouldn't turn on. Could be a bad battery (ordered on Amazon so zero guarantees). Then when I tried to de-solder and re-solder my new battery the pads came off it. Very annoying.