Uh, the battery percentage is always 100% or 98% and never changes unless I completely exhaust the battery.
I notice that the battery voltage does change when I am using or charge it. But it just always shows 100%.
I had tried an app callex battery calibration, and it doesn't work to calibrate the battery.
I wonder the voltage of a healthy and full battery on this device should be 4.3V, but it shows 100% even when the voltage is only at 3.5V
I tried playing 4K video to exhaust the battery quickly and then recharge it. The charge progress seems normal.
I see a glitch is that when I connect it to the charger, the voltage is 4.2V or higher, but when I plug it, the voltage becomes 4.0V or lower still showing 98% or 100%.
Anyone can help me?