Battery issues (only recently started happening)
Only recently I have had this recurring issue. Phone (iphone 5) is fully charged before I go to bed. I put it on airplane mode to save battery, and expecting it to stay alive for the alarm to wake me up and I find that the phone has completed died and needs to be charged from near 0%. Had the battery checked earlier in the year at an Apple store and they said it was still in good health. Suggestions? I know a full reset is probably the way to go but perhaps something less intensive is recommended.
iOS 8.4, null