10 - 30 minuten
I've had my iphone 4s since 2011. The battery has in the last couple of months been losing power so quickly without (and I confirm) frequent usage. In fact, there are days where it only lasts for 4 hours before getting into the red without me even using it, which is ridiculous. So.. instead of buying a new phone, which I can't afford, I discovered iFixit, and this has given me so much more than a new battery. For less than $30, I got a new battery, with easy instructional videos to follow, and lo-and-behold. My phone now has a new lease in life, and I live life now with so much pride and power that I never knew I could achieve. iFixit has completely set me free from the shackles of profiteering enterprise business model bull****. I swear by their products and services and I will seriously recommend it to everybody.
Easy. Watch the instructional videos. Find the right product you need. Use the right tools, and it will set you free. (Just needs a bit of common sense here and there, that's all).
Nope. Battery replacement is just so easy. You'd have to be an idiot to get it wrong. If that's the case, and you get it wrong, then seek a second opinion from some geeky neighbor or friend.