I did some Googling and couldn't find the definitive answer to this question. I just got a Pismo and it came with a battery of unknown past usage and it won't charge. I'm not sure if it's the battery that's a lemon or my power board. Is there a way to tell without purchasing one or the other? After being plugged in for a while my battery will flash one light when I press the button, so I take it my power board is working? Thanks for any advice.