1500 watt power supply plugged into outlander ac plug. Power supply set to 24 volts and with 50 amps I charge 5 6S lipos at 8 amps each. 24 X 50 = 1,200 watts.
I charge my RC jet batteries at 50 amps for 3 hours without problems. Costs about 8 miles of range. If the drive battery gets too low the engine starts automatically to charge the battery then shuts off.