When I look at it the next morning without using it fully charged, it's reduced to about 50 percent, but is there a case where the battery is consumed a lot without using a cell phone?
pu1. It's because there's a program that uses Wi-Fi or data. If you put it in flight mode, the battery won't run out
2017-12-02
pu2. I recommend the flight mode when you sleep. I think there are programs that use data even if you leave it alone. Includes Google Android OS itself