iPhone 6 Plus running 8.1.3 and the battery life is absolutely awful. I heard this was a very common issue but I have not really heard if 8.2 officially helps the battery life. So I am curious about that. Two, again I am running 8.1.3, but charge time is INSANELY slow. I used to be able to charge this phone in no time...now I leave it on the charger for 15 minutes and it jumps maybe 3 percent. Any cause for this?