Blue Sea 7649 Add a Battery Mini - 65AView all products in Battery Switches #:  41561
Be the first to review this product
Blue Sea 7649 Add a Battery Mini - 65A

Click to enlarge

Free Shipping This Item qualifies for Free Shipping on orders over $99! More Info...

Allows two battery banks to run simultaneously with one simple ON/OFF switch while maintaining battery bank isolation, with an automatic charge relay that combines the batteries while charging.
More Details...   #41561
Brand:  Blue Sea Systems
MFG Part#:   7649
Add to Compare
Blue Sea Systems

View all Blue Sea Systems Products
View all Products in Battery Switches

Blue Sea 7649 Mini Add-A-Battery Kit - 65A 

Don’t get stranded – Add a Battery! Adding a second battery to the electrical system prevents the unintended discharge of the engine start battery. 
Blue Sea Systems smaller, more compact version of the popular Add-A-Battery kit was primarily designed for outboard powered boats with alternator output of 65A or less. 
When installed, the Mini Add-A-Battery isolates the start battery from the house loads which prevents the discharge of the start battery. The Mini Add-A-Battery offers a simple way to control the charging and battery switching of two battery banks. The M-Series Dual Circuit Plus™ Battery Switch simplifies the switching while the M-ACR automates charging between two batteries.

Included: m-Series Automatic Charging Relay - 12/24V DC 65A and m-Series Mini Dual Circuit Plus Battery Switch - Red

  • 65 Amp continuous rating manages the charging current from alternators up to 65 Amps found on most outboards and many inboard engines 
  • Compact case design allows surface and panel mounting 
  • Senses charging on two battery banks 
  • Snap-on cover insulates terminal connections 
  • LED indicates ACR status 
  • 1 ∕4" x .032" male quick connect terminal for ground
  • 7∕ 16" (11 mm) stud length to accept multiple cable terminals 
  • 12V or 24V DC voltage input

  BSS7649 Manual

  Blue Sea Battery Switch Operation Diagrams

Blue Sea 5511e Dual Circuit PlusTM Battery Switch Specifications

Cranking Rating: 10 sec. 1,000 Amps
Intermittent Rating: 5 min. 525 Amps
Continuous Rating 350 Amps
Maximum Voltage Rating 32 Volts DC
Terminal Stud Size 3/8"-16 (M10)
Terminal Stud Torque 140 in-lb (15.82 N·m) max.
Mounting Holes Accept 1/4" (M6) Screw
Cable Size to Meet Ratings 4/0 AWG (95mm²)
Cable Clearance For 4/0 AWG Cables 1.10" (27.9mm)
Weight Lb (Kg) 1.16 (0.53)

CE Marked. UL Listed - UL 1107 electric power switches. Meets American Boat and Yacht Council (ABYC) requirements. Meets UL 1500 and SAE J1171 external ignition protection requirements.


Blue Sea 7610 SI Series Automatic Charge Relay Specifications

Continuous Rating 120 Amps
Intermittent Rating 210 Amps
Inrush Rating 280 Amps
Closed Current Draw 175mA@12 Volts
115mA@24 Volts
Open Current Draw 15mA
Maximum Cable Size 1/0 AWG
Terminal Stud Size 3/8"-16 (accepts M10 ring terminal)
Maximum Torque 140 in-lbs
Relay Contact Position: Combine (30 sec.) 13.6 Volts@12 Volt
27.2 Volts@24 Volt
Relay Contact Position: Combine (2 min.) 13.0 Volts@12 Volt
26.0 Volts@ 24 Volt
Relay Contact Position: Open Low (10 sec.) 12.35 Volts@12 Volt
24.7 Volts@ 24 Volt
Relay Contact Position: Open Low (30 sec.) 12.75 Volts@ 12 Volt
25.5 Volts@ 24 Volt
Relay Contact Position - Open High 16.0 Volts@12 Volt
30.0 Volts@24 Volt
Relay Contact Position - Open High 16.0 Volts@12 Volt

CE Marked. Meets ISO 8846, ignition protection, and UL 1500 and SAE J1171 external ignition protection requirements

Share your knowledge of this product with other customers... Be the first to review this product Shipping FAQ

Q. Do you offer Free Shipping?
A. We have free ground shipping via UPS or Canada Post within Canada on most orders of $99 or more (pre-tax).

Q. What do you mean by most orders?
A. Some items are exempt from this offer and are indicated on the product page. Exempt items are usually bulky or heavy items such as buoys. Over 98% of the items on qualify for the free shipping offer.
To see what your shipping charge (if any) will be you can add the item(s) and quantities to the shopping cart and you will see a shipping cost calculator

Q. Where do you ship from?
A. We ship from Halifax, NS

Q. What is the delivery time?
A.  NS, NB, PE: 1 - 2 business days,
      ON, QC, NL: 2- 4 business days
      MB, SK, AB: 4-5 business days
      BC: 5-7 business days
When your order ships you will be emailed a tracking number which will give you the scheduled delivery date

Q. Do you offer Express Shipping?
A. We offer Express Shipping on some orders depending on the items ordered and the delivery address. If Express shipping is available for your order you will see the option on the checkout page. If you do not see the Express option and you want Express shipping please send an email and we will provide you with a quote (

Q. Do you require a signature on delivery?
A. We sometimes add a signature requirement especially if it is a high value package

Please Note:
Very Remote areas are exempt from Free Shipping offer. These are typically remote northern areas. Nunavut as well as many parts of the Yukon and NWT are exempt from free shipping

Money Back Guarantee
Guarantee You may return your purchase to us (with a return authorization number - use this form) within 30 days and we will refund the purchase price of the product. Items which are cut to order (rope, wire etc), software, chart cards and printed materials (paper charts, books) are not returnable.

Other Products in View More
Displaying 1 to 15 (of 22 products)  1       2       [ Next >> ] 
Blue Sea 7655 Mini Add a Battery Plus Kit - 65A #: 45557 

Our Price: CAD$369.95 
Blue Sea 3000 HD-Series Battery Switch On-Off #: 32845 

Our Price: CAD$129.95 
Blue Sea 3002 HD-Series Heavy Duty Selector Battery Switch #: 32126 

Our Price: CAD$139.95 
Blue Sea 6005 m-Series Mini On-Off Battery Switch with Key - Red #: 25240 

Our Price: CAD$49.95 
Blue Sea 6006 m-Series Mini On-Off Battery Switch with Knob - Red #: 25241 

Our Price: CAD$49.95 
Blue Sea 6006200 m-Series Mini On-Off Battery Switch with Knob - Black #: 25322 

Our Price: CAD$49.95 
Blue Sea 6007 m-Series Mini Selector Battery Switch - Red #: 13035 

Our Price: CAD$69.95 
Blue Sea 7650 Add a Battery Kit - 120A #: 25225 

Our Price: CAD$229.95 
Blue Sea 8110 Mini Clamp-on Digital Multimeter #: 24391 

Our Price: CAD$264.95 
Blue Sea 7622 ML-ACR Automatic Charging Relay with Manual Control 12V DC 500A #: 25236 

Our Price: CAD$365.95 
Blue Sea 9001e e-Series Battery Switch - Dual Bank #: 25131 

Our Price: CAD$79.95 
Blue Sea 5511e e-Series Dual Circuit Plus Battery Switch #: 25208 

Our Price: CAD$94.95 
Blue Sea 9002e e-Series Selector Battery Switch with AFD #: 25152 

Our Price: CAD$84.95 
Blue Sea 9003e e-Series On Off Battery Switch #: 25162 

Our Price: CAD$74.95 
Blue Sea 9004e e-Series Battery Switch with AFD - Single Circuit #: 25161 

Our Price: CAD$98.95 
Share your knowledge of this product with other customers... Be the first to review this product
Customers who bought Blue Sea 7649 Add a Battery Mini - 65A also purchased

Browse for more products in the same category as the Blue Sea 7649 Add a Battery Mini - 65A
Home » Electrical » Battery Switches
0 items

Compare Product  

Facebook Twitter YouTube Sign Up for Email