36 Volt system; three 12 volt deepcycle batteries 36 Volts D.C., 1.25 H.P. continuous duty rating (M3i) & 1.5 H.P. continuous-duty rating (M3i HD) 4 Pole drivE motor with burst mode and programmable current control Proven rugged solid-state electronics are “plug and play” On Board 15 Amp @36VDC (45 Amp @12 Volt equivalent) series-balanced