Blue Sea Systems 7650-BSS Add-A-Battery Dual Circuit Plus Battery Management System

The Blue Sea Systems 7650-BSS Add-A-Battery is a comprehensive dual circuit battery management system designed for marine, RV, and automotive applications requiring auxiliary battery charging. This intelligent system allows you to charge two battery banks simultaneously from a single alternator while maintaining proper isolation between circuits.

Key Features:

• Dual Circuit Plus battery management switch with 120-amp continuous rating
• Automatic Charging Relay (ACR) ensures both batteries charge when the engine is running
• Intelligent sensing isolates batteries when engine is off to prevent discharge
• Tin-plated copper studs provide superior corrosion resistance in marine environments
• Red switch design with durable construction for reliable operation
• Combines manual battery selection with automatic charging convenience
• Prevents auxiliary loads from draining starting battery
• Simple installation with clear terminal markings

This system is ideal for boats, RVs, and vehicles with multiple battery banks where you need to power accessories from an auxiliary battery while ensuring your starting battery remains charged and protected. The ACR automatically connects batteries during charging and isolates them when the engine stops, providing worry-free battery management.