Just this week, my 360 has started to crap out on me when the battery reaches 30%. No warning, just off. Can't restart it either unless i charge it for a few minutes and then it boots normally. I think my battery is about to go. I've had it since Nov. 2014, so it might be time for a replacement. I have checked into replacement batteries, but man, what a PITA to get the thing open. Don't know if I'll be going with another 360.