03-11-2020, 01:23 PM
(03-11-2020, 12:15 PM)supermagic Wrote: When the phone is off, shouldn't all OSes stop functioning.... unless some component like the RTC maybe still on.
I use UBports too and the phone does discharge from like 100% to 60% in like 3 days when turned off.
When the phone is off, OS should stop functioning.
If something drains the battery, that may be caused by some hardware is not configured down perfectly and there is no power cut (transistor / FET) to power it down completely by hardware. At worst, some hardware may have some (higher or lower) power consumption even when it is configured down and that may cause battery to be slowly drained.
That is why it is a good idea to design the hardware in a way that a hardware switch could shut it down completely - especially if the hardware has non-removable battery which is luckily not the case here.
RTC may running, right, but it consumes extremely minimal power and that is a different part of the hardware.