I have an iPhone 5 with iOS6. It's only about 8 months old. For the last 4-8 weeks, the battery has been draining very fast. It used to last me 48 hours at least, with all the usage I would want to make - browsing, calls, messaging, app usage (no games), occasional maps usage. Often when I plugged it in to recharge at night, it would be at somewhere between 70-80% after all of that usage. Now it's only lasting around 16-18 hours, and in fact in the evenings I sometimes have to actively avoid using it for some things because I know that if I do, then it will completely drain before I go to bed and recharge it. At 100% when I take it off charge at 7am, and often between 0-10% when I plug in at 11-12 at night. On a day to day basis, it's not the biggest deal in the world, but I'm wondering why it's doing this now? Location services is turned off on all non-essential apps (and that hasn't changed in the last few months anyway). Brightness is near full, yes, but again, I haven't changed that recently either, so it should not be contributing to the faster drainage. Battery drains even when I've got LTE off, and only 3G enabled. Bluetooth is always off. Mail set to push on my main account, fetch 30 mins on the others, but again, no changes there recently, so should not be contributory. So any tips on what I can do myself to fix this? It was perfect when battery lasted me 48 hours because even though I normally recharge every night when I go to bed, if I go away for the night then it will still last until the next night, or go away for the weekend then with some light use I can get away with it - but none of that is possible currently with the way it's draining. Any help is appreciated.