Can you run a 6 volt battery with the Ignition or should it be only 4.8???
According to their website it must not be any higher than 6V or damage to the ignition may occur. A fully charged 5 cell battery will be over that. So you would need to use a regulator if using a battery that can be over 6V, i.e. a 5 cell NiCad or NiMH or 2 cell or more LiPo or LiIon. I'm planning on just using a 4 cell of sufficient capacity.
Mike