Note 4 battery drain overnight

[just2mai]

Hi guys, my mom's galaxy note 4 is having this problem for quite awhile. Basically the phone drains a lot of battery while idling. We bought new battery from samsung but the problem isn't solved.


this is the usaged of the battery. It seem pretty normal to me that's why i went ahead to purchase a new battery but the problem isn't solve.

Anyone knows what's happening here? any helps is greatly appreciated

 

[nahoku]

Not sure what's going on, but click on the battery graph to show the Awake time, etc, then post a screen shot.