Blue Sea Systems 7649 Mini Add-A-Battery Plus Kit

The Blue Sea Systems 7649 Mini Add-A-Battery Plus Kit provides a simple, reliable, and professional solution for managing a dual-battery system on boats. Designed for smaller vessels where space is limited, this compact kit allows you to isolate your engine starting battery from your house battery while automatically charging both batteries whenever a charging source is available.

The kit combines the Blue Sea Systems Mini Battery Switch and Automatic Charging Relay (ACR) into an easy-to-install package, eliminating the need to manually switch between batteries during normal operation. This ensures your starting battery remains charged and protected while your house battery powers onboard electronics and accessories.

Ideal for recreational boats, fishing boats, sailboats, and small commercial vessels, the Mini Add-A-Battery Plus Kit increases battery life, improves electrical system reliability, and simplifies battery management.

Features

• Genuine Blue Sea Systems 7649

• Complete Mini Add-A-Battery Plus Kit

• Automatically manages two battery banks

• Protects the engine starting battery

• Automatically charges both batteries when charging voltage is present

• Compact design for installations with limited space

• Simplifies dual-battery operation

• Heavy-duty marine-grade construction

• Corrosion-resistant materials

• Ignition-protected for marine applications

• Easy installation with detailed instructions

Specifications

Applications

Ideal for:

• Fishing boats

• Powerboats

• Sailboats

• Center consoles

• Pontoon boats

• Small commercial vessels

• Marine dual-battery systems

• House and starting battery installations

• Marine electrical upgrades

• Recreational boating

Benefits

✔ Automatically charges both batteries

✔ Keeps the starting battery isolated and protected

✔ Eliminates manual battery switching during normal operation

✔ Extends battery life

✔ Compact design for smaller boats

✔ Marine-grade corrosion-resistant construction

✔ Trusted Blue Sea Systems quality

Package Includes

• Blue Sea Systems Mini Battery Switch

• Automatic Charging Relay (ACR)

• Mounting Hardware

• Installation Instructions

Important Note

Designed for 12-volt dual-battery marine electrical systems. Always follow the manufacturer's wiring instructions and use appropriately sized marine-grade battery cables and overcurrent protection.