20 - 30 minutos
My battery stopped holding a charge as long as it used to. Instead of charging every other day, I was having to charge almost twice a day. (I think it may have something to do with charging my iPhone with my iPad charger. Don't do that!)
Repair went without a hitch. The step-by-step guides were impeccable.
MAN those screws are small! I had three little condiment bowls borrowed from the kitchen so I could keep screws separate. The spudger I bought (optional) was pretty helpful as well. Just remember, the battery itself takes some work to pry loose from the case. That adhesive is strong!