So I used to do a lot of long flights overnight and charge my phone and my battery always go up.
However now it seem that my battery is going down instead so i have to cancel long haul overnight flight
I always put graphics to low and save battery during long flight on all time when I do overnight flight but now it seem not working and losing my battery.
My phone S7 edge
Any help suggestion?
(There is nothing wrong with my charger or phone)