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FREE SHIPPING ON MOST ORDERS TO THE LOWER 48 STATES | ORDERS SHIP IN 1-3 BUSINESS DAYS
FREE SHIPPING ON MOST ORDERS TO THE LOWER 48 STATES | ORDERS SHIP IN 1-3 BUSINESS DAYS

National Luna Auxiliary Battery Box

$365.00

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National Luna Auxiliary Battery Box

The National Luna Auxiliary Battery Box is a versatile 12V power solution that can be customized to fit individual needs.

It can accommodate up to a 115 amp/hour battery and allows for additional output ports to be added as required. This product is not a dual battery system and additional systems might be required.

The box features fused outputs, simple installation, a built-in battery volt meter, compatibility with most vehicles, four spare pre-wired output ports, and high-powered 50Amp input and output ports.

It is suitable for most automotive batteries, offering a reliable and portable power solution for various applications​. Order yours online today!

*** Note: Additional Accessories Sold Separately ***


What's Included

Avoid the headaches! - Everything you need is included with the National Luna Auxiliary Battery Box and more!

  • 1x National Luna Battery Box
  • 1x Built-In Battery Voltmeter
  • 4x Spare Pre-Wired & Fused Output Ports
  • High-Powered 50Amp Input & Output Ports
  • 3-Year Limited Warranty
  • Ships in 1-3 Business Days
  • 30-Day No Stress Returns
  • FAST & FREE SHIPPING To The Lower 48 States

Auxiliary Battery Box Features

  • Simple Installation - Easy to set up and integrate into your vehicle's electrical system.
  • Removable & Portable - Easily transportable design allows for quick removal and installation.
  • 4 x Spare Pre-Wired & Fused Output Ports - Additional output ports for customized power needs, each safely fused.
  • High-Powered 50Amp Input & Output Ports - Supports high-power applications with 50Amp capacity for both input and output.
  • Compatible with Most Vehicles - Designed to fit and function with a wide range of vehicle models.
  • Can Accommodate Standard Automotive Battery Types - Suitable for various automotive batteries, offering versatility in power storage.
  • 3-Year Comprehensive Warranty - Offers a three-year warranty, ensuring reliability and customer satisfaction.
  • Additional Accessories Sold Separately - Option to expand functionality with separately sold accessories.
  • Built-In Battery Volt Meter - Integrated volt meter for easy monitoring of battery health and status.
national-luna-battery-box-gray-front-view-on-white-background

National Luna Auxiliary Battery Box Specifications

Features Specifications
Dimensions 20" L x 10" W x 12" H (500mm L x 250mm W x 300mm H)
Input & Output Port Capacity 50Amp
Warranty 3-Year Comprehensive Warranty
national-luna-battery-box-gray-front-corner-view-on-white-background

National Luna Auxiliary Battery Box

Do you need more information about specifications, installation, care, etc.? Check out the Instruction Manual or download it by clicking the PDF icon!

national-luna-auxiliary-battery-box-instruction-manual-pdf

FREE SHIPING on orders above $250

Shipping is FREE on most orders with a total value above $250 to customers within the lower 48 United States (Contiguous United States)NOTE: For Front Runner orders, Free Shipping to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500

However, due to their size and weight, some products may require an LTL truck flat fee shipping charge based on the zone you live in. This flat fee rate will be calculated at checkout, but ONLY for certain brands and products.

Products where the LTL truck flat fee may apply are rooftop tents, roof racks, awnings, bumpers, bed racks, rock sliders, fridges, and drawer systems.

Brands where Flat Fee Shipping based on zones apply:

  • Backwoods Adventure Mods
  • BA Tents
  • Body Armor
  • CBI
  • Eezi-Awn (only residential addresses)
  • Front Runner / Dometic (FREE SHIPPING to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500)
  • Prinsu
  • TruckVault (only residential addresses)
  • Tuff Stuff
  • 23zero

Please refer to the zone map displayed below for your location.

 

Read more about the terms and conditions that apply in our Shipping Policy

30-Day Easy Returns

As experienced Overlanders, we fully understand that things do not always go according to plan. 

That is why we offer you our "No Questions Asked" 30-Day Return Policy, so you can get back on the road for more adventures in a heartbeat. 

Read more about the terms and conditions that apply in our Easy Returns Policy

We know you have plenty of options when shopping for Overlanding gear online, so why choose Open Road Overland? Because we’re more than just a store—we’re your trusted partner for every adventure. Here’s why shopping with us is a game-changer:

REASON #1 - TRUST AND SECURITY - SHOP WITH CONFIDENCE

Your security is our top priority. We use encrypted SSL technology and are Level 1 PCI DSS compliant, ensuring your transactions and personal information are always protected. When you shop with us, you can trust that your data is safe and your purchase is secure.

REASON #2 - REAL-WORLD TESTED QUALITY - GEAR YOU CAN RELY ON

We’ve been Overlanding since 1998 — long before it became a buzzword. With 25 years of experience testing gear in the toughest conditions across six continents, we only sell products we would use ourselves. If it’s in our store, it’s been trail-tested and approved.

REASON #3 - EXPERT ADVICE - BECAUSE EXPERIENCE MATTERS

No matter what you drive—a passenger car, pickup truck, or a fully rigged 4x4—we have the knowledge to help you build the perfect setup. Our team has driven nearly everything and can guide you toward the best gear for your specific adventure needs.

REASON #4 - HASSLE-FREE SHOPPING - BECAUSE YOUR TIME MATTERS

  • Fast and FREE Shipping on most orders above $250 to the lower 48 states

  • 30-Day Easy Returns. Not happy with your product, we'll take it back no questions asked, and without charging you ANY restocking fee. Ever!

REASON #5 - GREAT CUSTOMER SERVICE - WE'VE GOT YOUR BACK

We don’t just sell gear — we build relationships and pride ourselves on providing the best service, anywhere. Our dedicated Customer Service team is made up of real Overlanders who understand your needs and are ready to help with expert advice, product recommendations, and troubleshooting. Whether you have a question before purchase or need support after, we’re always here to ensure your experience is seamless and stress-free.

REASON #6 - A COMMUNITY THAT CARES - OVERLANDING FOR EVERYONE

Whether you’re a beginner just starting out or a seasoned pro pushing the limits, we believe Overlanding should be accessible to all. That’s why we offer both entry-level products and top-tier gear, ensuring every adventurer finds what they need. More than that, we’re here to help, guide, and support you every step of the way.

OVERLANDER OWNED & OPERATED

25+ Years Experience

BEST PRICE GUARANTEE

Found it cheaper? Tell us. We'll beat it

FAST & FREE SHIPPING

To the lower 48 states

30-DAY EASY RETURNS

Changed your mind? Send it back


National Luna Auxiliary Battery Box

The National Luna Auxiliary Battery Box is a versatile 12V power solution that can be customized to fit individual needs.

It can accommodate up to a 115 amp/hour battery and allows for additional output ports to be added as required. This product is not a dual battery system and additional systems might be required.

The box features fused outputs, simple installation, a built-in battery volt meter, compatibility with most vehicles, four spare pre-wired output ports, and high-powered 50Amp input and output ports.

It is suitable for most automotive batteries, offering a reliable and portable power solution for various applications​. Order yours online today!

*** Note: Additional Accessories Sold Separately ***


What's Included

Avoid the headaches! - Everything you need is included with the National Luna Auxiliary Battery Box and more!

  • 1x National Luna Battery Box
  • 1x Built-In Battery Voltmeter
  • 4x Spare Pre-Wired & Fused Output Ports
  • High-Powered 50Amp Input & Output Ports
  • 3-Year Limited Warranty
  • Ships in 1-3 Business Days
  • 30-Day No Stress Returns
  • FAST & FREE SHIPPING To The Lower 48 States

Auxiliary Battery Box Features

  • Simple Installation - Easy to set up and integrate into your vehicle's electrical system.
  • Removable & Portable - Easily transportable design allows for quick removal and installation.
  • 4 x Spare Pre-Wired & Fused Output Ports - Additional output ports for customized power needs, each safely fused.
  • High-Powered 50Amp Input & Output Ports - Supports high-power applications with 50Amp capacity for both input and output.
  • Compatible with Most Vehicles - Designed to fit and function with a wide range of vehicle models.
  • Can Accommodate Standard Automotive Battery Types - Suitable for various automotive batteries, offering versatility in power storage.
  • 3-Year Comprehensive Warranty - Offers a three-year warranty, ensuring reliability and customer satisfaction.
  • Additional Accessories Sold Separately - Option to expand functionality with separately sold accessories.
  • Built-In Battery Volt Meter - Integrated volt meter for easy monitoring of battery health and status.
national-luna-battery-box-gray-front-view-on-white-background

National Luna Auxiliary Battery Box Specifications

Features Specifications
Dimensions 20" L x 10" W x 12" H (500mm L x 250mm W x 300mm H)
Input & Output Port Capacity 50Amp
Warranty 3-Year Comprehensive Warranty
national-luna-battery-box-gray-front-corner-view-on-white-background

National Luna Auxiliary Battery Box

Do you need more information about specifications, installation, care, etc.? Check out the Instruction Manual or download it by clicking the PDF icon!

national-luna-auxiliary-battery-box-instruction-manual-pdf

FREE SHIPING on orders above $250

Shipping is FREE on most orders with a total value above $250 to customers within the lower 48 United States (Contiguous United States)NOTE: For Front Runner orders, Free Shipping to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500

However, due to their size and weight, some products may require an LTL truck flat fee shipping charge based on the zone you live in. This flat fee rate will be calculated at checkout, but ONLY for certain brands and products.

Products where the LTL truck flat fee may apply are rooftop tents, roof racks, awnings, bumpers, bed racks, rock sliders, fridges, and drawer systems.

Brands where Flat Fee Shipping based on zones apply:

  • Backwoods Adventure Mods
  • BA Tents
  • Body Armor
  • CBI
  • Eezi-Awn (only residential addresses)
  • Front Runner / Dometic (FREE SHIPPING to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500)
  • Prinsu
  • TruckVault (only residential addresses)
  • Tuff Stuff
  • 23zero

Please refer to the zone map displayed below for your location.

 

Read more about the terms and conditions that apply in our Shipping Policy

30-Day Easy Returns

As experienced Overlanders, we fully understand that things do not always go according to plan. 

That is why we offer you our "No Questions Asked" 30-Day Return Policy, so you can get back on the road for more adventures in a heartbeat. 

Read more about the terms and conditions that apply in our Easy Returns Policy

We know you have plenty of options when shopping for Overlanding gear online, so why choose Open Road Overland? Because we’re more than just a store—we’re your trusted partner for every adventure. Here’s why shopping with us is a game-changer:

REASON #1 - TRUST AND SECURITY - SHOP WITH CONFIDENCE

Your security is our top priority. We use encrypted SSL technology and are Level 1 PCI DSS compliant, ensuring your transactions and personal information are always protected. When you shop with us, you can trust that your data is safe and your purchase is secure.

REASON #2 - REAL-WORLD TESTED QUALITY - GEAR YOU CAN RELY ON

We’ve been Overlanding since 1998 — long before it became a buzzword. With 25 years of experience testing gear in the toughest conditions across six continents, we only sell products we would use ourselves. If it’s in our store, it’s been trail-tested and approved.

REASON #3 - EXPERT ADVICE - BECAUSE EXPERIENCE MATTERS

No matter what you drive—a passenger car, pickup truck, or a fully rigged 4x4—we have the knowledge to help you build the perfect setup. Our team has driven nearly everything and can guide you toward the best gear for your specific adventure needs.

REASON #4 - HASSLE-FREE SHOPPING - BECAUSE YOUR TIME MATTERS

  • Fast and FREE Shipping on most orders above $250 to the lower 48 states

  • 30-Day Easy Returns. Not happy with your product, we'll take it back no questions asked, and without charging you ANY restocking fee. Ever!

REASON #5 - GREAT CUSTOMER SERVICE - WE'VE GOT YOUR BACK

We don’t just sell gear — we build relationships and pride ourselves on providing the best service, anywhere. Our dedicated Customer Service team is made up of real Overlanders who understand your needs and are ready to help with expert advice, product recommendations, and troubleshooting. Whether you have a question before purchase or need support after, we’re always here to ensure your experience is seamless and stress-free.

REASON #6 - A COMMUNITY THAT CARES - OVERLANDING FOR EVERYONE

Whether you’re a beginner just starting out or a seasoned pro pushing the limits, we believe Overlanding should be accessible to all. That’s why we offer both entry-level products and top-tier gear, ensuring every adventurer finds what they need. More than that, we’re here to help, guide, and support you every step of the way.