Battery Drain Problem

Updated my ZF3 Max (ZC520TL) to newest version (a.k.a PowerMaster update), and did notice the battery drain much faster than before.
Is there anything I can do to fix this problem? I've checked the Battery configuration, and found that "Screen" absorb more than 1000+ mAh for 5 hours (1 mAh for every 15 seconds), is it normal?

*EDIT : Provided picture*

i think it is normal, since you are using Wifi connection, and several apps that runs on the background. As the the phone suggested, please reduce level brightness or use automatic brightness. and also reduce screen time out and turn off the Wifi if not connected to any device.

Can asus zen fone max gets a naught  update in future

After update betry drain fast asus zenphone max 550kl 16 gb vrsn

On all of my phones, here is what I do to maximize battery life.  I keep screen brightness on auto, I set up my phone so that it turns off in 30 seconds or less after being used, I disable wi-fi unless I am actually using the wi-fi, I keep location settings turned OFF (GPS) unless I need it, and I keep Bluetooth switched off unless I am using it.  I also disable as many applications as possible so that there is nothing running that I do not need.  

Battery suddenly go down 68% to 35% to 15 to 3 and shut down phone in 5to7 second