Amazon.com: Dual Battery Isolator Kit 12V 140Amp Manual and Auto modes Voltage Sensitive Relay VSR Compatible with RV Marine Car Vehicle Truck Caravan Camper Yacht ATV UTV Boats,Not Fit for lithium batteries :
How to Choose a Battery Isolator | Inverter Service Tech Talk
MSEL Solid State Master Relay Club Battery Isolator - Motorsport Electronics Limited