5 - 30 minutes
Her iPhone4 was not holding a charge. I searched for iPhone battery replacement, and came to iFitit.com. Ordered the replacement kit, which came in a couple ofdays.
While I usually do the electronic repairs, I let my wife know that the process was easy if you watched the iFixit video. The rest is history. The kit was delivered, and by the time I got home, the repair was complete. My Wife's delight at her successful repair was infectious. The repair took a short time, and the instructions were top notch. Thanks for a great product!
Don't be afraid. You can do the repair, really you can!