Dual Cell charger. Can I use a pack of 4aa's?
 

I want to do the Laymans dual cell mod, but I dont want to hack up my one and only controller to be able to charge it. Can I just use a rechargeable 4 cell nicad battery to charge up the bit? Like just have positive and negative wires soldered onto the battery, then touch them both to the cars contact tabs for 45 seconds. Would this work? Thanks

It would work as long as you can keep them on there for 45 sec.
and make sure you don't get them backwards.there really isn't any hacking to do to make a 2 cell charger and if you wanted to put it back to normal all you have to do is solder 2 wires back on.

I just thought that the charger inside the controller might not send the full voltage thru at once. Maybe charging on 4 cells would melt the little battery in the car?

I didn't think it did either until I tryed doing a 2 cell.I checked it with a multimeter and it's full voltage.

I charge mine on 4c batterys and it charges faster.No problems yet

I did the controller mod, and I didn't have as good of luck. The second battery wasn't charging so it only ran it normal speed and I started charging it once when it started hissing.

I didn't do the control mod because it doesn't work.The control already charges at full voltage(3V) to charge the single cell.You have to charge 2 cells at 6V.