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

The Blue Sea Systems 7649 Mini Add-A-Battery Kit is a complete small boat battery management system that lets boaters charge two batteries at or away from the dock. Built for alternators up to 65 A, the kit pairs an m-Series Dual Circuit Plus Battery Switch 6011 with a BatteryLink Charger, giving small boats and tight helm spaces a compact, space saving solution for managing starter and house battery banks. The Mini Dual Circuit Plus switch controls the starter and house banks independently while still allowing single switch control of the system, so two battery installations stay simple to wire and operate. An integrated Automatic Charging Relay senses charge voltage and automatically combines the batteries during charging so both banks receive power at the same time; when the engine shuts off and voltage drops, the relay isolates the banks again to help prevent unintended discharge of the starting battery. An emergency parallel/combine function is built in as well, so the batteries can be linked together to assist with engine starting if one battery is discharged. The kit uses marine rated components throughout, including tin plated copper studs that resist corrosion in harsh onboard environments, for dependable performance in demanding boating conditions. Its compact footprint is designed for small boats and tight installations, simplifying wiring for two bank systems.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 7649
• Category: Boat Battery Switches
• Maximum Alternator Rating: 65 A
• Continuous Current Rating: 65 A
• Included Components: m-Series Dual Circuit Plus Battery Switch 6011 and BatteryLink Charger
• Stud Material: Tin plated copper
• Product Dimensions: 11.75 x 7.63 x 3.2 inches
• Weight: 1 pound
• UPC: 632085076498

Frequently Asked Questions

What does the Blue Sea Systems 7649 Mini Add-A-Battery Kit include? The kit includes an m-Series Dual Circuit Plus Battery Switch 6011 and a BatteryLink Charger, combined into a complete small boat battery management system.

What alternator size does the 7649 Add-A-Battery Kit support? The 7649 is designed for alternators up to 65 A.

How does the Automatic Charging Relay in the 7649 kit work? It senses charge voltage and automatically combines both batteries during charging so they charge at the same time, then isolates the banks again when voltage drops after the engine is off, helping prevent unintended discharge of the starting battery.

Can the batteries be combined for emergency starting? Yes, the 7649 kit includes an emergency parallel/combine function that links the batteries together to assist with engine starting if one battery is discharged.

Does the Mini Dual Circuit Plus switch let me control each battery bank separately? Yes, the switch controls the starter and house banks independently while still supporting convenient single switch control for compact two battery installations.

What are the dimensions of the 7649 kit? The Blue Sea Systems 7649 Mini Add-A-Battery Kit measures 11.75 x 7.63 x 3.2 inches.

How much does the 7649 Add-A-Battery Kit weigh? It weighs 1 pound.

What material are the switch studs made of? The 7649 kit uses tin plated copper studs, which resist corrosion in harsh marine environments.

Is the 7649 kit suited for small boats with tight helm space? Yes, its compact, space saving footprint is designed to fit small boats and tight helm spaces while simplifying wiring for two bank battery systems.

What is the UPC for the Blue Sea Systems 7649 kit? The UPC is 632085076498.

What continuous current rating do the kit's components carry? The 7649 kit's marine rated components carry a continuous rating of 65 A.