11 Year Warranty
  • DL+ 12V 320Ah LiFePO4 Dual Purpose Battery
Perfect for RVs, Boats, Home Solar & More

DL+ 12V 320Ah LiFePO4 Dual Purpose Battery

(13 reviews)
  • Free Shipping to Lower 48 & Canada
  • 11 Year Warranty
  • FREE 12V 20A LiFePO4 Charger Included
  • Sale! $300 Off
  • Pre-order now! Next Batch Ships June 2024. Use code preorderdl for 5% off. Code expires June 30th, 2024
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Need tons of power? Bulk pricing discount
Need tons of power? Bulk pricing discount
For larger quantities contact sales@dakotalithium.com
6X the Power of Traditional Batteries
Half the Weight
Charges 5X Faster
Lasts 8X as long
Safe & Reliable



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 315 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




12.8 Volts (Dakota Lithium 12V batteries can be used in series for up to 48V systems)


15.06"L x 7.24"W x 10"H (385mm x 202mm x 252mm) 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


65 lbs (29.5Kg)


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.


200A max continuous, 300A max 10-second pulse, 1,000A max 2-sec CCA pulse. LiFePO4 chemistry has a flat voltage curve, meaning this battery will maintain a voltage of >12V for the full discharge cycle in most applications.


<200 A standard charge, 300A max charge current for <60 sec. 14.4V Recommended, 14.6V Max. Included is a LiFePO4 compatible charger. 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. -20°F min, +150°F 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..


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.


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.

Free LiFePO4 Charger Included

12V 20A charger included ($299 value). 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.

Suitable for:

  • Boating & Sailboat Batteries
  • RVs
  • Off grid energy storage
  • Vans & Campers
  • Home energy storage
  • Solar storage
  • DIY Powerwalls
  • Emergency power
  • Golf Carts
    *Range of 125-200 miles*
  • Neighborhood Electric
    Vehicles (NEV)

Experience the Dakota Lithium Difference

The DL+ 12V 320Ah battery is built with Dakota Lithium's legendary LiFePO4 cells. 5,000+ recharge cycles (roughly 5 year lifespan at daily use) vs. 500 for other lithium batteries or lead acid.

13 reviews for DL+ 12V 320Ah LiFePO4 Dual Purpose Battery

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.

Verified Buyer

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

Excellent product as always from an excellent company!

Matt Swearingen

I have not used the batteries much yet, but so far so good. I do think my hydraulics on my lift seemed to work better in the cold than they ever have powered by golf cart batteries. The specs say that 2 of these 12 volt batteries are more powerful and more Amp Hour capacity than four 6volt golf cart batteries. I am hoping they last a good long time. Customer service was top notch too.

Henry De pena

I run my 12 volt lights in Dominican Republic with solar panels. This baterry never run out of power.

Patrick Booth

I am pleasantly surprised by the power they have. I originally bought 800ah four years ago to power my yacht, and just increased the capacity to 1360ah. I can run an air conditioner 24/7 in summer in the main cabin, and still use the induction stove top.


For more information or larger quantity inquiries, visit our B2B page or please call our sales team at 1-855-743-3279.

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