I was wondering if it is safe to charge my razer phone 2 to 100% all the time? I have done it several times now and I don't know if it's just my phone or the battery seems to drain quite fast, like gaming on the phone for 3-4hours straight drops my battery from 90 to 10% and I noticed 1 time while watching YouTube videos for 4hrs straight my razer phone 2 was quite warm to touch. Is this normal? Did anyone experience this?