Blue Sea 7649 Mini Add-A-Battery Kit - Boxed Packaging [7649003]

7649 Mini Add-A-Battery Kit - Boxed Packaging What does the Mini Add-A-Battery do? Adding a second battery prevents getting stranded with a dead battery by isolating the start battery from the house loads that can quickly discharge a battery. The Mini Add-A-Battery offers a compact, simple way to control the switching with the m-Series Dual Circuit PlusT Battery Switch and automatically share a si