I don't know where else to post this so here it is. On a nicad 4.8v battery for my plane which I had to replace there are 3 wires on the battery red,yellow and black. The red and black are connected to one each lead on the battery, but I can't find where the yellow is connected. I must tell you that the plane crashed and the yellow wire may have been severed but I still can't locate where it would connect to on the battery! Can someone steer me in the right direction on this?
Thanks
zip

The yellow wire isn't used. Only the red+ and black- are used.

Thank you very much

The yellow wire, in this case not used, would serve as a signal wire in a different application; hence the 3 wires...red (positive), black (negative) and the 3rd wire to carry signals ("instructions").

Soft landings.

Joe