Hey yall. Found a lot of helpful advice from everyone here and I’m wondering if someone could be of assistance again.
Most of my camper van runs on DC power. I have a shore power hook up and inverter (to alternator) to charge my bluetti. it still has to pass through the AC200P to the DC fuse box. I was looking at installing an AC to DC power supply to plug into the shore power. My options are install an xt60 to the AC-DC supply and manually change over the plugs which is okay and simple. However I’m looking at a Blue Seas power switch. I’m just confused if it’s okay to have both negatives connected to the negative bus bar at the same time. Attached is a crude diagram and also the switch I’d like to install.
Why not just attach the AC200 ac charging brick to shore power and keep the AC200 running all the time? If not desired, I would suggest an RV power converter (installed on all RVs to provide DC power) which come in a large variety of amperage capacities. The ground should be fine to connect both to.
I used that same switch to run my camper van fridge, galley, etc from either my AC200P 12v 25A output or the van battery (for backup). I connected the AC200P dc negative to van chassis ground, no problem.
But I agree with Scott, why not charge the AC200P direct from shore power. AC switches are cheaper than the DC battery switch, use to switch between your inverter and shore power.