DL+ 12V 320Ah Dual Purpose LiFePO4 Lithium Battery

DL+ 12V 320Ah Dual Purpose Heated LiFePO4 Battery

  • Weight: 65 lbs
  • Ideal for RVs, off-grid, and large power systems
  • 320Ah + 1,000 CCA in compact Group 31 size
Information
Description
Technical Specs

Our most compact and powerful battery yet with 320 Amp Hours of capacity plus 1,000 CCA of engine starting power. Same size as a single group 31 battery but with 8X the amount of usable power.

Description

Introducing the All-New DL+ 12V 320Ah Battery: Bigger, Stronger, More Powerful

Prepare for the toughest conditions with the new DL+ 12V 320Ah battery, the latest in Dakota Lithium’s line of high-performance batteries. Built for off-grid adventures in your RV, extended ocean voyages, and powerful off-grid systems, this battery is compact, yet packed with 320 Amp Hours of capacity in a waterproof Group-31 size case. That’s 6X the usable power of a single Group-31 AGM battery, plus up to 1,000 cold-cranking amps (CCA) for engine-starting power, making it the ultimate single-battery solution for boats, RVs, and vehicles requiring both house and starting power.

Key Features:

  • -Superior Power: 320 Amp Hours of capacity and 1,000 CCA for reliable power, whether off-grid or starting engines.
  • -Compact Design: Fits in a Group-31 size footprint with dimensions of 13.31″L x 7.24″W x 10″H (338mm X 183mm X 254mm), though the wider top L: 15.04″ x W: 7.60″ x H: 9.96 (382mm x 193mm x 253mm) may require checking battery box compatibility.
  • -Lithium Iron Phosphate (LiFePO4) Technology: Delivers 6X the power and lasts up to 8 times longer than typical AGM batteries, with a lifespan of 5,000 charge cycles.
  • -Durable Construction: Reinforced with a rugged, marine-spec plastic case for enhanced durability, making it ideal for marine, solar, RV, and electric vehicle applications.
  • -Waterproof and Built to Last: Designed for extreme environments, offering unmatched performance and an 11-year warranty for long-term value.

-Optimized for: Marine/boating, solar energy, RVs, and electric vehicles.

For those seeking maximum energy density in a compact, durable design, the DL+ 12V 320Ah is the ultimate power solution. Whether you’re exploring off-grid or sailing the open seas, this battery provides the performance and reliability you need.

Recommended Charger: 12V 50A (sold separately)

Technical Specifications

  • Warranty: Best in Class 11 Year Warranty. That is 10 years more warranty then most lead acid batteries.
  • Storage Capacity: 320 Ampere hours (Ah). Dakota Lithium batteries provide consistent power for all 320 Amp hours. DL LiFePO4 batteries have a flat voltage curve, which means they have a steady power output as the battery discharges. The power output will not dramatically drop like similar sized SLA batteries. You get all the juice down to the last drop.
  • Cold Cranking Amps: 1,000 CCA is adequate to start most boat and large vehicle engines
  • Energy: 3840Wh
  • Voltage: 12.8 Volts (Dakota Lithium 12V batteries can be used in series for up to 48V systems)
  • Size: L: 15.04" x W: 7.60" x H: 9.96" (382mm x 193mm x 253mm) Measurements are to the top of the terminals and includes side handles. **See notes in the product description for battery tray and battery box sizing**
  • Group Size 31 & 8D: Group Size 31 and Marine 8D size compatible
  • Weight: 65 lbs (29.5Kg)
  • Lifespan/Lifecycles: Up to 80% capacity for 5,000 cycles in recommended conditions, 70% capacity at 5,000 recharge cycles. Half-life (50% capacity) of 6,000 - 7,000 re-charge cycles (Typical SLA has 500 cycles). Backed up by an 11 year warranty.
  • Discharge: Max continuous 200A, 300A for 60 seconds, 1000A for 1 second.LiFePO4 chemistry has a flat voltage curve, meaning this battery will maintain a voltage of >12V for the full discharge cycle in most applications.
  • Charge: <200 A standard charge, 300A max charge current for <60 sec. 14.4V Recommended, 14.6V Max. A SLA charger may work, but will reduce performance and lifespan of the battery. Even heat technology allows for charging below 32'F. Internal even-heat technology allows for charging below 0°C/32°F
  • Operating temperature: Ideal for rugged & harsh environments. Much better than SLA or other lithium batteries. -4°F to 176°F (-20°C to 80°C) max optimal operating temps (battery performs well down to -20°F). Internal even-heat technology allows for charging below 32°F. BMS high temp cut off at 167°F / 75°C..
  • INTERNAL EVEN-HEAT TECHNOLOGY: Increases performance in extreme cold. When charging the battery in temperatures below 0°C/32°F DL's internal heating element will warm the cells to 0°C/32°F. This increases the lifespan, performance, and efficiency of the battery.
  • Safe & Reliable: Includes active BMS protection circuit that handles cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection and high temperature protection for increased performance and longer life
  • Terminals and Posts: M8 bolt size included. (Max torque 15 ft. lbs.) (Max 5 ft. lbs. on terminal post adapters)
  • Marine Grade & Waterproof: Max IP65 water resistance rating. Appropriate for marine environments, not submersible.
  • Certifications: All batteries are UN38 certified. Dakota Lithium's cells are UL1642 certified and have been tested per IEC62133 standards. Meets all US & International regulations for air, ground, train, & marine transport.
  • ISO 9001:2015: Dakota Lithium is ISO Certified per 9001:2015 standards, and select models are produced in ISO 14001 certified facilities.
  • Recommended Charger: 12V 50A charger. (Sold Separate) Dakota Lithium 12V batteries should be charged at 14.4 volts. Lead acid chargers will work, but will only charge the battery to 80% of capacity.
  • FAST AND SPEEDY SHIPPING

  • 11 Year Warranty

$2,299.00

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Additional information

Shipping
  • Shipping policy

    At Dakota Lithium, our goal is to provide transparent and reliable shipping information for our customers. Orders are processed within 24-48 hours upon receipt, excluding weekends and holidays. Orders placed after 5 pm will be processed the next business day. Batteries ship FedEx and will arrive in 5-7 days to most of the US. For shipping quotes to countries outside the United States and Canada, please contact us at sales@dakotalithium.com.

  • Shipping Costs

    Shipping costs for Dakota Lithium batteries are calculated per battery due to their classification as hazardous materials (hazmat), ensuring safe and compliant handling and transportation. Shipping costs to Alaska and Hawaii may be higher due to federal law that requires that batteries ship Air Freight and have Hazmat protection. If you need to return a battery, a 10% restocking fee will apply. For details on our return policy, refunds, order edits, and exchanges, please visit our returns page. In case of lost or damaged orders, contact our support team for assistance. Orders may take longer to arrive due to variables outside of our control. We will communicate any potential delays and provide timeline estimates to keep you informed. After placing an order, you will receive a shipment confirmation email with tracking information. For any issues with lost packages, please contact support@dakotalithium.com for assistance. We appreciate your understanding and thank you for choosing Dakota Lithium.

FAQ
  • Twice the Power?

    Yes! Here at Dakota Lithium we build all of our batteries with lithium iron phosphate technology which has many distinct advantages over traditional batteries. Including 60% less weight, a charging speed that is up to 5X faster, and a significantly longer lifespan (5-10 years longer on average). One of the most noticeable advantages however is the flat voltage curve. Unlike a lead acid battery where the voltage drops as you use the battery a Dakota Lithium battery has a steady voltage for 99% of the battery’s charge. That means you get all the power down to the last drop and double the usable power of traditional batteries.

  • Are Lithium Batteries Safe?

    Dakota Lithium batteries are 100% safe & reliable. Our signature chemistry, Lithium Iron Phosphate (LiFePO4), does not contain rare earth elements (like Cobalt) or heavy metals, is non-toxic, including no lead or acid, is non-corrosive, does not off gas, requires no watering or maintenance, can be placed in any orientation, and unlike other lithium batteries will not explode or catch fire. In addition, each Dakota Lithium battery is protected from over heating, over charging, and short circuiting, by a battery management system (BMS) microchip that also extends the lifespan and is contained in a rugged, waterproof case (although enough water can conduct electricity between the terminals, so don’t submerse the battery). For best performance & reliability we recommend using a LiFePO4 charger.    

  • How do I charge a lithium battery?

    Dakota Lithium LiFePO4 batteries perform best when charged by a LiFePO4-compatible battery charger. LiFePO4 batteries require a different charging profile and voltage requirements compared to traditional battery chargers. Chargers designed for different chemistries may work, but they may not charge a Dakota Lithium battery to full capacity. It’s important to select a charger that has a LiFePO4-compatible constant-current constant-voltage (CC/CV) charging profile, provides the correct charging voltage for your battery, does not exceed the charge current (amp) for the battery, and has a charge indicator LED to let you know when the battery is fully charged. You can find more information on How to Charge Dakota Lithium and LiFePO4 batteries on our website. If you need help finding a compatible charger for your Dakota Lithium battery, or if you want to check your current charger compatibility, please reach out to our support team.

  • Will cold weather affect my battery?

    Your Dakota Lithium battery will discharge normally between a range of -20F and 120F (-29C to 49C). DL batteries are commonly used among ice fishers for their flashers and ice augers, so they are quite resilient and are frequently used in cold climates. In cases of extreme cold however, it is recommended that the batteries be insulated. We also do not recommend charging our batteries below freezing temperatures. If you are planning to regularly charge your battery below freezing temperatures we recommend the DL+ 12V 135Ah battery which has an internal heating element and is optimal for use in cars, trucks, RVs, off grid solar, and any application where the battery will be charged regularly in extremely cold environments (like a North Dakota winter).

  • Do You Have a Military Discount?

    Yes! Dakota Lithium support active and former members of the US or Canadian armed forces. You can use the code DakotaMilitary to get a 5% discount at checkout. If you provide verification through email, you will receive an additional 5% off, making the total discount 10%. Please indicate the branch of the military or unit where you served in the order notes. Many veterans and pilots, including one of our founders who flew F-16s, work for Dakota Lithium. We’d love to hear your story! (P.S. The discount code operates on the honor system, so please only use it if you are a veteran). If you represent a veterans’ organization interested in partnering with Dakota Lithium, you can arrange a group purchase at wholesale prices by contacting sales@dakotalithium.com. For donations, please complete the philanthropy application form available here.

  • How can I become a dealer?

    1) For wholesale & bulk orders simply buy in bulk on the website. Bulk pricing is available on the product page (see bulk pricing discount) or on the Wholesale / Custom page. 2) To become a dealer fill out the form at the bottom of our dealer page. Or contact sales@dakotalithium.com

  • Can I use this to start my car/boat engine?

    We have two battery options available for starting motors: the LTO Automotive Cranking battery and the DL+ Dual Purpose line. Both are designed for starting motors, with a 1000CCA equivalent of engine starting power for boat, car, or truck engines. The DL+ line also offers our legendary deep cycle capability in addition to engine starting power. Please note that our standard deep cycle packs do not have cranking ability and cannot be used for starting motors.

  • What Trolling Motor Battery Do You Recommend?

    Dakota Lithium is a proud sponsor of over 200+ professional athletes in the fishing industry. Here’s batteries sizes recommended by our pros depending on the size of your trolling motor: Motor Thrust / Max Amp Draw (A) @ Voltage (V) / Recommended Battery 20 lbs / 20A @ 12V / DL 54 or DL+ 60 25 lbs / 25A @ 12V / DL 54 or DL+ 60 30 lb / 30A @ 12V / DL 54 or DL+ 60 or DL 100 45 lb / 42A @ 12V / DL 54 or DL+ 60 or DL 100 55 lb / 50A @ 12V / DL 54 or DL+ 60 or DL 100 70 lb / 42A @ 24V / 24V Single or DL 54 x 2 or DL+ 60 x 2 or  DL 100 x 2 80 lb / 56A @ 24V / DL+ 60 x 2 or DL 100 x 2 or DL+ 320 x 2 101 lb / 46A @ 36V / 36V Single or DL+ 60 x 3  DL 100 x 3 or DL+ 320 x 3 112 lb / 52A @ 36V / 36V Single or DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 >112 lb / Up to 100A @ 36V / DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 For wiring multiple batteries in series we recommend Connect Ease trolling motor connection kits available on our trolling motor battery page. For a deep dive on trolling motor batteries read How to Choose A Lithium Battery for Trolling Motors

  • What battery do I need for my RV or Camper Van?

    The industry standard house battery size used in most RVs, Campers, and #VanLife builds is the DL 100Ah battery. This is a drop in replacement for AGM and most lead acid batteries. If you are charging off your engine’s alternator we recommend a Victron DC-DC smart charger. If charging off solar panels we recommend a Victron Smart Solar charge controller, or if you have a solar charge controller choose the lithium setting. A handy size chart for number of batteries needed by size of RV is available here.

Warranty
  • Dakota Lithium Warranties

    We stand behind the quality of our products: 1) 30 day money back guarantee on all orders. If you are unsatisfied for any reason with one of our batteries you can return it for a refund up to 30 days after purchase. 2) 11 year manufacturer defect warranty on all batteries. If we made a mistake building your battery we will repair or replace it. See warranty & return policy for details. 3) Lifetime technical support. Reach out to support@dakotalithium.com for help from our team of experts. 4) 1 year warranty on chargers, powerbox case, and accessories.

  • 30 Day Money Back Guarantee

    If you are unsatisfied for any reason with one of our batteries you can return it for a refund, less a 5% restocking fee, up to 30 days after shipping date.

2024/2025 Dakota Lithium Catalog

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Rafael P.

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Robert

I could not be happier with my 315 AH Dakota Lithium Battery which I installed in my Motorhome. It is compact: it fit in my existing battery tray which previously held two 6 volt AGM batteries. It’s lightweight: it weighs less than one of my 6 volt batteries! It is exactly what I needed. I have a residential refrigerator in my motorhome. With my two 6 volt batteries, I had 6 hours before I was forced to run my generator when I stopped to boondock. I just returned from a 4000 mile trip. I routinely stopped for 10 to 12 hours per night to boondock. I did not have to run my generator once! I typically had about 50 percent battery charge left before I would begin my day of driving. I have no solar charging, so this was 100 percent the battery. Also, after 4 hours of driving, my alternator charged the battery back up to 100 percent. I live in the Ohio, so another plus is the battery’s internal heating system. I don’t have to worry about the battery not charging when temps go below freezing. Finally, I have to compliment Dakota Lithium on their outstanding customer service. I knew nothing about Lithium, Shaun a member of their technical support staff took great care of me and patiently answered all my questions.

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I put my 280AH battery in my overhead camper. Very tight fit, fortunately I was able to put it on its end and secure it. Camped for 4 days with lots of furnace and light usage and still had tons of power left for more trips. Love the security knowing I have the power I’ll need.

Andrew Mock

These batteries are exceptional. Installed in a sailboat as a house bank and it has been a game changer. Durable, compact, and high qulaity. Also a top value when compared to other brands with similar capacity. Each battery was accompanied by a high quality charger and thats a plus for sure. Definitely recommend Dakota! Also great technical assistance for first time users of LiFePO4 technology. I was apprehensive as a DYIer but the folks at Dakota were knowledgeable and responsive.

Jason Lovin

So far I am very pleased with all mine. I run all Lithium in my bass boat. All Dakota. 1-36V ,1-12V 280 ah, and 1-12V 100ah

Edward McGrath

Installed 3x280ah in my Northern Lite 9-6 truck camper to support my extended winter camping.

Performance Rovers

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