Hello
I have a cheap battery pack that does not seem to work.
the PCB has USB connector for power output and microUSB connector to power input
when I connect a microUSB I always see a green light indicating that the battery is full...
when I measure the volt on the battery I get ~0.850v when I unplug the microUSB power I see the battery volt is downing down very fast...
the ICs on the PCB that I could see are:
DW01 and 8025A
I think the problem is with the battery, what is the best way to confirm that expect from replacing the battery?