just bought new HTC 10 yesteday charged it up and it did a few updates and now running Android 7. When I opened photos app the phone crashed and 5 minutes later restarted and it reported recovered from major error or something.  As new I did factory reset and all is fine. 11pm fully charged 100%. This morning 7am battery down to 50%,  Never so fast battery drain on Samsung.  Checked power usage and Android Os 100%.  checked in there and Awake and Wifi were both 100% all others were 0% or 1%.  Is this normal for HTC 10