The Battery Isolation Manager isolates the two battery systems, Chassis & Coach, in a Motorhome. This prevents loads in one system from discharging both. It also connects the two battery systems together during charging. Both batteries are charged if either is being charged. The Coach Battery is charged while driving down the road, and the Chassis Battery is charged while plugged into Shore Power at a camp ground.
CLICK HERE FOR INFO https://www.precisioncircuitsinc.com/wp-content/uploads/2022/11/00-10021-000-Battery-Isolation-Manager-RevF.pdf
