Great stuff, thanks again for a great tutorial. Beware puncturing or bending the battery--bent that which I just replaced whilst removing it from my son's iPhone, and it quickly became extremely hot.
If I'd just read through the guide first, instead of relying on the video alone, I would've used floss/wire/monofilament to saw my way through the battery adhesive instead of prying it out, curling it over, and nearly burning down the house. .