10 - 30 minuten
The battery life on my iphone4S was ridiculous. It would drain incredibly fast when certain apps were open. The percentage would jump from 10 percent to 40 if i were to plug it in last minute. The battery was mocking me, so I had to do something .
The repair wasn't so bad. It took me about an hour only because I've never done anything like this before. I'm sure this would take less time for an experienced person. You have to be very patient. The screws and certain pieces are so small. I was all.. "what are these ,screws for ants?!"
Just be patient...it'll work out.
Make sure you have a container for those tiny screws. I almost lost one in my carpet. They are so tiny and if you lose it....you're screwed. (get it?!!)
ALSO, remember the placement of your antenna! It's that small black and gold piece connected to the silver battery connector. If you replace everything but don't put the antenna back correctly, your phone won't be able to search for your network. It's a pain because you'd have to open your iphone again. Good luck everyone.