I have a samsung note 3, problem is its battery has starting to die very quickly even when not using infact specialy when not using it dies soo quickly just last night(1 am) it was around 40% next at 5am when i woke up it was finished i wake up with alarm but for few days battery dries up before alarm, anyways what seems to be the problem it started all of sudden what to do? is it the battery? do i have to do a factory reset?