Haven't had good battery life since the AUB6 update I think anyway. Can't remember the exact build but was happy with battery life. Since the May update standby drain is really high. Screen on drains every few min. Never used to be like this. Used to be 1% every 10min the display is on which was reasonably good. Samsung need to stop focusing on camera updates and fix the bad battery life. Disappointing for a 5000mah battery. All apps in deep sleep. Auto sync off. Location off when not in use. Shouldn't have to turn everything off in order to get good battery. I've tried using 60hz but it's too laggy and jerky so I'm sticking to adaptive.
Took my phone off charge this morning at 7.30am and it's now 9.19am and I have 95% battery life. I haven't used the phone much, 8mins of screen on time! Battery optimisation is great when in standby. For me, the battery drains faster when using the phone - Pre /May update I had between 6-7hrs SOT - After May update I get 3-4hrs SOT.
Struggling with 4g internet today.. is this my network or my phone. 
That's with airplane mode .
Yet another user with same issue. Come on Samsung.. get this fixed !!!!
