I don't know. It depends on how long ago the conversion to electric was. There's been a number of improvements on controllers and such. Someone in the San Fran area took a rubber bumpered Midget and made it electric.
I think what would be really cool would be to design a hybrid conversion. Figure out how to put a small motor driving a generator and a keeping electric power to battery packs.
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Jim Horton
1974 US Spec Midget, 1275