Neither BATA nor Spinball Sports (the original manufacturer of the Rawlings 3 wheel machine) knows whether or not this battery inverter will work with a Rawlings 3 wheel machine and we do not have any customers who have tried the combo.
That said, my hunch is that it will not work since it does not work with all BATA machines and also because JUGS, who sells a similar battery inverter in specs (1,000 Amps), says that their 1,000 watt inverter will not work with their 3-wheel machines.