The charger for the 6volt 1100 mAh battery pack. On the charger itself it should be printed on it by the ul (underwriters laboratory symbol) how many volts DC output and mAh output.
I don't have the charger. That's all I need to know.
On this charger
I don't have one but it is around 350mAh.
The Super Derecho
6 volt or 7.2?