Inverter setup
I'm thinking of adding an inverter to my 4WD. I currently have a single 100AH, 12V battery in the car and a second in a portable battery box.
Both batteries have a continuous 100A discharge rating, which limits the size inverter I could use.
Rather than running the batteries in parallel (not great, when one of the batteries is portable, which I'd like to maintain), I'm thinking of running them in series, and using a 24V inverter, while still keeping everything else 12V.
The idea is to mount 120A and 50A Anderson plugs on my battery box, set at a 90° angle to each other, so they can't both be plugged in at the same time (which would short 12V to ground!).
When the 50A plug is connected, the battery box gets charged from the 4WD's alternator.
When the 120A plug is connected, the two batteries are in series, providing 24V to the inverter.
I'm interested in any thoughts on the following design (TIA):
