I'm an EE too. I've had some trouble getting the battery to make good contact with the PCC charger. I got a bandaid fix in, though I don't have much confidence in the PCC any more, which is why I'm in this conudrum in the first place. I must have confidence that the battery will ALWAYS charge. And I don't feel right recommending an unreliable piece of hardware to a friend.
Does "JS" stand for "Janty Stick"? Would you consider it reliable?
Dave