my mind was wondering on this idea all day. and i came up with this idea, to possibly use a variable voltage sliding switch that would posibly have a range of 2v-13v, on or under the gas pedal of the vehicle, with something like that you may be able to saturate your water/electrolyte solution, so that at idle you would only be giving the cell 2v and probably 8-10A.....full throttle would be 13v and probably 30+Amps.
for the life of me i cant think of the name of this switch.......kinda like the sensor/switch that indicates your fuel level.
Ever see how a
wah-wah pedal for a guitar works? And actually I think it would be better to somehow throttle the amps and not the volts. But this is still debatable...