Dual Cell Charger
 

I made an external charger for my Dual Cell out of a Fit Racer controller. I connected the charger directly to the charger by taking out the pcb board so it wouldn't do the 45 second charge. It has 2 AA NIMH 1800mah batteries in it. Is that enough to charge a dual cell?

2 fresh AA alkalines MIGHT have been enough...But the 2 AA NiMH won't be.

Get a 3rd NiMH in there and you should be set.

How could I add another space for a 3rd battery with out having to make a new charger?

If worst comes to worst, I'll just buy a cartridge from RadioShack and solder the charger pad on.