Blue Sea Systems 7650 Add-A-Battery Kit 120A Grundens Features an anti-drain back valve

Features an anti-drain back valve to ensure start up lubrication and eliminate dry starts

ultra-smooth surface that prevents marine fouling

unique blade geometry

OE Numbers for 18-3625

Engineered to provide the system with very low thermal expansion properties

Blue Sea Systems 7650 Add-A-Battery Kit 120A Grundens Features an anti-drain back valveThe ADD A BATTERY is as simple to operate as an ON OFF switch, yet effectively manages the switching and charging of two batteries from a single charge source 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 when you arrive and OFF when you leave. Dual Circuit Plus Battery Switch Simplifies