FYI, the battery replacement on the 4s is really, really easy (back plate just s...

		matthew-wegner on Oct 2, 2015 \| parent \| context \| favorite \| on: What If You Used iOS 9's Low Power Mode All the Ti... FYI, the battery replacement on the 4s is really, really easy (back plate just slides off, versus removing the screen via suction on the later models). It'll cost you $15-25, depending on where you buy. Guide: https://www.ifixit.com/Guide/iPhone+4S+Battery+Replacement/7...