3% - 10%.
It is normal for the mobile phone to consume between 3%-10% of power during the night, but the specific power consumption depends on the brand of the mobile phone, Settings, connection to the network and so on. If the wifi is connected and the background refresh is turned off, the standby power consumption will be less at night, if the background refresh of all applications is turned on and the 4G network is used.
A third of the power is normal after a night of standby