Blue Sea 7650003 Add-A-Battery Kit - Boxed Packaging

The Blue Sea 7650003 Add-A-Battery Kit is purpose-built for boaters and anglers who demand reliable power management on the water. This kit is essential for those running overnight fishing trips or needing backup power for critical navigation systems, effectively addressing the single-battery vulnerability that can catch captains off guard.

Engineered specifically for marine applications, this add-a-battery kit features integrated isolation and charging logic that automatically manages power distribution between primary and secondary batteries. Utilizing a voltage-sensitive relay (VSR), it prevents deep discharge of the starting battery while allowing auxiliary loads to draw from the auxiliary battery, ensuring your engine remains operational even after extensive use of electronics.

Marine electricians and DIY boaters will appreciate the straightforward installation process, as this kit simplifies the complex relay logic required for dual-battery management. It is compatible with standard marine battery configurations, making it a reliable choice for commercial fishermen, cruisers, and serious recreational boaters alike.