Blue seas ACR and ground

[Outnabout]

If I disconnect the ground on the ACR will the marker lights still work on my camper and will my camper battery and truck battery be disconnected. I want my running lights but not necessarily for the truck battery to be connected to the camper battery because I am going to drop in a Lithium battery and don’t want to do all the other upgrades (DCDC and wiring) yet. I understand that it is probably not a good idea to keep the truck (AGM) connected to the camper (lithium). Is this the case. Thanks

 

[bajaphile]

You should have some inline circuit breakers (or fuses) going to the ACR at each battery. I use circuit breakers for this reason as you can just press the disconnect button. I would imagine that pulling the ground on the ACR would be enough, but don't have first hand experience doing so. Assuming ACR can't find a 0 ground point voltage then it will most likely not function (stay disconnected).