Marinco 7649-BSS Mini Add-A-Battery Kit - 65A Dual Battery Management System

The Marinco 7649-BSS Mini Add-A-Battery Kit provides a simple yet effective solution for managing dual battery systems in marine, RV, and powersports applications. This compact system prevents getting stranded with a dead battery by isolating the starting battery from house loads while automatically sharing charging current between both batteries.

What's Included:

• m-Series Dual Circuit Plus™ Battery Switch - provides manual ON/OFF control with emergency COMBINE function
• Mini Automatic Charging Relay (ACR) - automatically manages charging between batteries

Key Features:

• Supports alternators up to 65 amps
• Relay rated for 65A continuous, 115A intermittent operation
• Battery switch rated for 300A continuous, 675A cranking
• Automatically combines batteries during charging, isolates them during cranking and when not charging
• LED status indicator provides visual feedback of charging and relay status
• Tin-plated copper studs for maximum conductivity and corrosion resistance
• Isolating cover with snap-in side pieces protects contacts and allows wire access from any direction
• Ingress Protection IP66 - dustproof and protected against heavy seas and water jets
• Ignition protected - safe for installation in gasoline engine compartments
• Marine-grade reinforced polycarbonate construction

Certifications: CE marked, ISO 8846, UL Listed (UL 1107), meets ABYC requirements for battery switches

Operation is as simple as turning the battery switch ON when you arrive and OFF when you leave. The automatic charging relay handles the rest, ensuring both batteries receive proper charging while keeping your starting battery protected from house loads.