My laptop wont power up unless plugged in.
when my laptop is plugged in it works fine and with it up i can unplug the battery and it still works fine.
if it is unplugged for a short time it will not power on without being plugged back in. i get cmos error 502.
i have replaced battery. running all the hp testes the battery passes and is charging fine. i have also reset bios but still same issue?