I just picked up this device yestarday night from Sprint. Now I'm using it and I was wondering about the battery temperature. How hot should it not get? Is there protection in this phone so that when it gets too hot that it turns off to save itself so I don't have to worry about managing the temperature? I noticed that when I'm just normally using my phone (internet, youtube, etc.), the phone temperature is around 100 F, and it went up to 111 F maximum when I was downloading a ton of apps and had the phone on the bed which didn't allow it to release heat as easily so I immediately turned it off and stopped the downloads bringing it down to 84 F in some time. The battery monitor app is giving me all these stats and it also says that battery health is good. Also the voltage has been changing a bit too. It's mostly stayed in the 3.700's. Is this all fine? What is the maximum battery temperature I should reach?