I purchased my iPad Air 2 in October of last year, and lately I have been having issues with the battery holding a charge. When I use it, the back gets really hot some times, more on the right side I believe, and I have to charge it a lot more. Like this morning took off the charger and it was at 100%. It's been on my nightstand unused all day and whe I get home today it's at 75% with literally no use. When I started using it within 10 minutes was down to 67%, so I assume I'm having issues. It never used to be like this.