I just opened the box on a new Hitec servo programmer and connected my trusty Thunder Power Peak charger to top up the onboard NiCd pack. (using the charge jack/port on the programmer) The charger thinks the voltage is virtually zero and won't charge. So does my volt meter.

So I opened it up to check the pack voltage directly - it's 4.9 v! So now I'm wondering if I have a defective unit OR it's designed that way with some kind of diode in the charge circuit. Anyone know?