I'm looking to rebuild a Yaesu FNB-4A battery pak. To do this, I need a schematic or a wiring diagram. A simple explanation of some inside wires would also do.
Inside this battery pak, there are 5 wires that I believe connect to the NiCd cells. Some wires have been previously cut so I'm not sure where they connect to. One of the 4 fast charger pin contacts appears to have no connection. Here's what I know and do not know.
White: cell temperature sensor
Black (short): negative battery pak contact strip
Red: positive battery pak contact strip
Can anyone please shed some light on these connections? I have searched high and low for a schematic or wiring diagram for this battery pak, but have found nothing.