The Add-A-Battery includes a Dual Circuit Plus™ Battery Switch and an automatic charging relay. These components simplify switching and automate charging, so that all you have to do is turn the battery switch ON and when you board and OFF when you leave. For outboard and inboard powered boats. Includes #6011 M-Series mini dual circuit plus battery switch and #7601 automatic charging relay. Dual Circuit Plus™ Battery Switch Simplifies switching Isolates engine and house circuits Combines batteries for emergency starting Tin-plated copper studs for maximum conductivity and corrosion resistance ACR Automatic Charging Relay Automatically combines batteries during charging Isolates batteries during engine cranking and when not charging Shares the charge between two batteries more efficiently than a battery isolator Allows efficient dual battery charging without needing regulator adjustment or rewiring
