@anand That certainly is a bummer… I’m used to a National Luna solenoid in my defender, so I guess I’m going to have to learn / adapt to modern systems. The more I think over this system, the more it seems appropriate to run the fridge and other ancillaries off of the aux battery. I remember a thread where someone was re-wiring the 12 volt outlets and aux switches over to the second battery. This seems like the better solution.