Doable, but be cautious!

crwdns2853023:0crwdne2853023:0

iPhone would suddenly shut down although battery was still 10% and also the battery was getting empty really quick.

crwdns2853024:0crwdne2853024:0

The repair went well, except the removal of the battery itself. The adhesive did break, luckily only on one side but still it was quite a hassle. The tip to use dental floss in addition to the card was very helpful. It prevents one from bending the battery too much.

crwdns2853025:0crwdne2853025:0

Give it enough time!!! As soon as you start to hurry and use too much force, things will get worse.