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

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

7650
05/31/2036 8:40 PM
Sale Price

$182.53

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems Add-A-Battery kit is designed for boaters adding a second battery to support additional electronics, trolling motors, or upgraded audio systems. This complete dual battery management system combines an automatic charging relay (ACR) and a dual circuit battery switch to ensure reliable power distribution and emergency backup capability.

Intelligent Battery Management:

The included 7610 Automatic Charging Relay allows both batteries to charge simultaneously from a single charging source without the voltage drop associated with traditional battery isolators. The ACR automatically isolates the house battery during engine starts to protect sensitive electronics, then reconnects both batteries once charging voltage is detected. This intelligent system requires no external regulators or manual intervention.

Dual Circuit Plus Battery Switch:

The 5511e e-Series Dual Circuit Plus switch provides sophisticated control of your dual battery system. In the ON position, both batteries remain charged and available, but power distribution is separated—house loads draw from the house battery while starting circuits use the start battery. This prevents accidentally draining your starting battery by running accessories. The emergency combine feature allows you to draw power from both batteries when extra cranking power is needed or to make an emergency radio call.

Key Features:

  • Complete kit includes ACR and battery switch for turnkey installation
  • Charges two batteries efficiently from single source without isolators
  • Automatic start isolation protects electronics during engine cranking
  • Emergency combine function provides backup starting power
  • Ignition protected components suitable for gasoline engine compartments
  • Tin-plated copper studs provide maximum conductivity and corrosion resistance
  • Multiple mounting options for flexible installation

ACR Specifications: 120A continuous rating (210A intermittent), 12V/24V compatible, start isolation, 3/8" terminal studs, ignition protected

Switch Specifications: 350A continuous rating (700A cranking), three switch positions with combine feature, dual battery inputs, 3/8" terminal studs, 3-5/8" diameter face

This system is ideal for fishing boats, cruisers, and any vessel requiring reliable dual battery management with the peace of mind that comes from Blue Sea Systems' marine-grade construction and ignition protection.

Products specifications

Amperage

120 Amps

Color

RedBlack

Voltage

12 Volts/24 Volts DC

ISO Approved

ISO 8846Meets UL 1500SAE J1171CE

Warranty Details

Lifetime

I was updated when my package was shipped and given a time and date that it should arrive.

Fast delivery tires as described. A+++++

always good so far

The only problem was the email for the item being shipped didnt get updated fast but i did get my product so really no complaints here thank

m

Shipping cost was high.

Quick and Easy, Just like it should be.

like this place very much. quick delivery, great prices. happy happy

New just as ordered

Best price on the Web for Tein Street Flex suspension. Period.

Had the product I wanted and at the lowest price. Thank you for the outstanding service!<br><br>-M

transaction was fast,made shopping a good experience.

For as cheap as what I paid for my product I will admit I was scared!!! Got what I asked for in perfect condition, came fast and wonder where have you been all my shopping life? Thanx for such a great deal and fast shipping!!!

piece of cake for a non tech person

I sell hi performance part for south america, and searching online I found this site ...THE BEST PRICE ONLINE PERIOD... I you don't believe, tries yourself. You can compare with the two biggest hi performance dealers in the usa.

Great

Easy purchase, and best price for what I was looking for, and shipping discount on top of that. Thanks again!

Best price for the optima battery I needed for my boat, I will definitely add this site to my favorites.

I wanted to pay with PayPal, but the site would not let me select that payment option

great parts, even better prices..all around good service

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