I am running 9.2.1b2 and have had some serious battery issues. It is draining very fast. Sometimes when it is 10% or 20% it will shut down and say it's out of power. Solutions I've tried are quitting all open apps, hard restart, Letting the battery drain down to 0% on a time it didn't shut down early. My next step was going to be a quick erase and restore from iTunes backup. When I started to do that it said it couldn't download the version (9.2.1). I realize that is normal. Now my question is what can I do to get a restore done if anything? Will Apple look at and do diagnostics on my battery if I'm running the beta? Thanks.