There are lowbattery protection units on the market from Victron that can act as a switch these can switch high DC current. Downside Victron says these can only operate up to 36v and their highest current rated unit till 63V I actually can’t believe these MOSFET units can’t handle like 90v DC just for switching. Anyone who has experience? A other option I was thinking about is using DC solid state relais but also on that I have no experience. Maybe someone has and can share knowledge?