My iPad Air 2 with almost 2 years of almost daily usage (& coming to the end of it's AppleCare+ coverage) is starting to have shorter battery life. I mainly use this iPad Air 2 for Gmail, YouTube, some social media Facebook, Instagram, LinkedIn & sometimes CoC (Clash of Clans) but that is about it. Called Apple Care support and they suggested some changes to Settings > General > Background App Refresh (I only had a few but I flipped the setting to off) They also had me change my settings to send diagnostics to Apple (I shut the send to Apple off back off after the support call) then after updating to 9.3.3 (& later I did the same for 9.3.4) Settings > General > Reset > Erase All Content and Settings and use an iCloud backup After a week of daily use, I still think my battery life still seems significantly worst and I only get about 3-4 hours of usage from a full 100% charge. (I keep it less than 1/2 brightness) So I bought it into an Apple Store (without an appointment, big mistake but that is another story) A tech checked it, ran some diagnostics & said my iPad Air 2 is in great condition (I saw a diagnostics screen where it said my battery was high & left in the green and it had over 600 cycles, for whatever that is worth) and would not let me pay the $49 fee to get it swapped. He suggested Settings > General > Reset > Erase All Content and Settings Setup as NEW and NOT use an iCloud Backup (pull all the data off manually or use iTunes, then manually set everything back up) questions: 1) Does anyone else do this reset, "setup as NEW" & not use iCloud backups with their iOS devices? (While possible, I am trying to understand the value / reason) 2) Are there other settings that could be causing battery drain? What could I do? 3) With my AppleCare+ expiring soon, should I be concerned about my iPad Air 2 battery not getting replaced?