Problem: My engine battery drains while camping because of all the door lights staying on when doors are open.
Solution: Use Orion-Tr to trickle charge the engine battery when SmartSolar nears complete charge on my house battery.
How to hook this up?
Image 1: Direct to Load output of MPPT. I understand this might not work due to high in-rush of Orion. I plan to de-rate the Orion to 8 amps or something small to trickle the engine battery.
Image 2: Use the Remote on/off (LH) switch ports of the Orion. Is this how it is configured? " the H terminal (right) of the two-pole connector can be switched to battery plus, or the L terminal (left) of the two pole connector can be switched to battery minus"
So, then the load output of the SmartSolar triggers the switch of the Orion.
*If it's not clear in the diagram, the L port is connected to nothing, the H port to the Load+ port of SmartSolar. Orion input + to house battery.
Image 3: The Orion isolated 12/12-18 is cheaper than the non-isolated 12/12-30, is it fine to use the isolated 12/12-18 in a non-isolated environment? I suspect it's fine. I really don't need 30 amps either, and 30 amps is the smallest non-isolated smart Orion.
Thanks for your feedback.