I bought an inverter from 240 to 110 Volt, because the bike refused to charge with 240 Volts here in Germany. I changed all the plugs and cables, so that charging worked like I would charge the SM in the US powernet. That worked pretty good. Then i sold it to BRP Rotax. They charged it several times until it quit. ("No ground detected" error) And yes, they charged it on the dyno with regen, because they had no other solution and needed the bike for a demoride for the bosses of the company!
I dont know, why BRP Rotax bought the SM and another EX (both streetlegal for the EU) at my shop. Also the workers could not tell me some details about the reasons of the deal.