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- Regular price
- $1,999.00
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✓ Questions? Call A Team Member: 419-967-3418
- Regular price
- $1,999.00
Estimated Shipping Time
Estimated Shipping Time
At Summit Forge Supply, we offer free standard shipping on all U.S. orders, with most orders processing within 1–2 business days and delivering in approximately 3–5 business days. We ship via trusted carriers including USPS, UPS, FedEx, and LTL freight providers, and all orders include tracking and shipment insurance. If your order is delayed, damaged, lost, or missing items, please contact us within 7 days so we can promptly assist with a replacement or refund. Returns are accepted within 30 days on unused items in original packaging, with return shipping covered by Summit Forge Supply. See full policy here: Shipping Policy
What Is Your Return Policy?
What Is Your Return Policy?
Summit Forge Supply accepts returns on eligible U.S. orders within 14 days of delivery, provided items are unused, undamaged, and in their original packaging with proof of purchase. Returns must be initiated within 7 days of receipt, and approved returns include prepaid return shipping; refunds are issued to the original payment method within up to 14 days after inspection, with a 25% restocking fee for change-of-mind returns. Defective, damaged, incorrect, or lost items qualify for a full refund or replacement at no cost to the customer when reported promptly. Custom or personalized items, perishable goods, gift cards, and downloadable products are non-returnable. See full policy here: Return Policy
Our most compact high-capacity dual purpose battery yet, the DL+ 12V 320Ah delivers massive deep cycle energy plus 1,000 CCA of engine starting power. It fits in the same footprint as a single Group 31 battery while providing up to 8X more usable power, making it a serious upgrade for demanding marine, RV, and off-grid setups.
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 water resistant 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.
- -Water resistant 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)
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Warranty
Best in Class 11 Year Warranty. That is 10 years more warranty then most lead acid batteries.
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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.
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Cold Cranking Amps
1,000 CCA is adequate to start most boat and large vehicle engines
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Energy
3840Wh
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Voltage
12.8 Volts (Dakota Lithium 12V batteries can be used in series for up to 48V systems)
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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**
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Group Size 31 & 8D
Group Size 31 and Marine 8D size compatible
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Weight
65 lbs (29.5Kg)
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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.
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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.
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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. Do not charge below 32°F.
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Operating temperature
Ideal for rugged & harsh environments. Much better than SLA or other lithium’s.-4°F to 158°F (-20°C to 70°C). BMS cutoff at 167°F (75°C).
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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
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Terminals and Posts
M8 bolt size included. (Max torque 15 ft. lbs.) (Max 5 ft. lbs. on terminal post adapters)
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Marine Grade & Water resistant
Max IP65 water resistance rating. Appropriate for marine environments, not submersible.
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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.
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ISO 9001:2015
Dakota Lithium is ISO Certified per 9001:2015 standards, and select models are produced in ISO 14001 certified facilities.
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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.