I bought this unit to supply power to the Vevor diesel heater, and to charge my batteries. It powered the diesel heater which takes around 13 amps at startup and shutdown. The Anderson looking connector is a bit non-standard - to connect, u can either buy a compatible connector of same company that made the connector (name on connector), or replace both sides with a Anderson connector which is what I did.
Vevor customer support went out of their way to help with any questions. I am really happy with the customer service.