I have an almost new (2 months only) iPad Air 2 Wifi 64gb. Ever since it was new, I thought the battery drain was very noticeable and worse than what I had just upgraded from (4th Gen iPad with Retina display) while using the device in a similar fashion. A good example was this morning. The device was plugged in overnight and showed 100% charge at 9am. After using the iPad just to browse websites and update some apps, the battery was down to 80% one hour later at 10am. That's 1/5 of the battery capacity used in one hour. Extrapolated, this would mean the battery is only good for 5 hours! Isn't this battery supposed to last up to 10hrs? Any thoughts? Is this normal performance? What has been the experience of others? Is this something an Apple Store would replace?