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The DL+12V 315Ah just got bigger! Welcome the all new DL+ 12V 320Ah! When you go off the grid during a Dakota winter you need to be prepared for all that mother nature can throw at you. With the new DL+ 12V 320Ah battery, we built our most compact and powerful battery yet -- ready for long expeditions in your RV, extended ocean voyages in your boat, or plenty of power for your off-grid system. Engineered for maximum energy density, this battery has 320 Amp Hours of capacity in a waterproof battery case the size of a single Group-31 sized battery. That's 6X the amount of usable power of a single group 31 AGM battery. Plus, up to 1,000 cold cranking amps of engine starting power, making this battery the ultimate single battery solution for boats, RVs, or any vehicle where you need a house battery that can jump-start your engine. Built out of Lithium Iron Phosphate (LiFePO4) technology and reinforced with a ruggedized marine spec plastic case, this is a battery built to last. With a lifespan of 5,000 charge cycles this battery will last up to 6 times longer than your typical AGM battery - providing exceptional value over time. Optimized for marine/boating, solar energy, RVs & electric vehicles. 11-year warranty. The DL+ 12v 320Ah battery is a Group 31-sized battery. The bottom footprint dimensions are 13.31"L x 7.24"W x 10"H (338mm × 202mm × 252mm) and will fit in most Group 31-sized battery trays. The top of the DL+ 12v 320Ah is a little wider, incorporating handles, the dimensions at the top are 15.06"L x 7.24"W x 10"H (383mm x 184mm x 254mm) which means, some Group 31 size battery boxes may not be compatible.

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 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

Energy

3840Wh

Voltage

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

Size

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

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

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.

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. -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..

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.

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.

Eleven Year Warranty

We stand behind the quality of our products:

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.
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.
Lifetime technical support. Reach out to support@dakotalithium.com for help from our team of experts.
1 year warranty on chargers, powerbox case, and accessories.

DL+ 12V 320Ah LiFePO4 Dual Purpose Battery

Q & A