What would be more efficient ?
A robot carrying 2 battery packs, one seriously large one for drive and a smaller one for the circiutry.
A robot carrying only the seriously large battery and regulators to feed the circuitry.??
E.g. 36V Gellcells and 4.8V NimH or 36V Gellcells and regulators.
I'm not sure how to work out the efficiency of the first option to compare them