I've bought the Tascam DR-100 last week, also a extra Li-Ion battery and the PS-P520 adapter. The problem is that i can't charge the batteries, not with the USB cable and not with the adapter. What do I do wrong? Can anybody help me?
I would first try a different USB cable. Not all USB cables carry power. Does the red light come on? Also note that if the battery is already charged, the red light will not light.