Blue Sea Systems Mini Add-A-Battery Kit 65A Dual Circuit Battery Management System, 7649

The Blue Sea Systems 7649 Mini Add-A-Battery kit delivers automatic battery management in a compact format suited for small boats and space limited installations. Rated for 65 A systems, it simplifies two battery switching and charging while reducing wiring complexity. The Mini Dual Circuit Plus battery switch separates starter and house banks while allowing convenient single switch control. The automatic charging relay monitors system voltage and connects both batteries during charging so they receive power simultaneously. When the engine is off and voltage drops, the relay isolates the banks to help prevent unintended discharge of the starting battery. An emergency combine function allows the batteries to be linked to assist with engine starting if needed. Marine rated components and tin plated copper studs provide durability and corrosion resistance for dependable performance in demanding boating conditions.

• AUTOMATIC CHARGING RELAY: Includes Automatic Charging Relay that senses charge voltage; combines batteries during charging and isolates at rest
• MINI DUAL CIRCUIT PLUS SWITCH: Controls starter and house banks independently; supports compact two battery installations
• EMERGENCY PARALLEL FUNCTION: Integrated combine feature links batteries when needed; supports engine starting if one battery is discharged
• SPACE SAVING INSTALLATION: Compact footprint fits small boats and tight helm spaces; simplifies wiring for two bank systems
• MARINE RATED COMPONENTS: Tin plated copper studs resist corrosion in harsh environments; continuous rating of 65 A for small outboards