Product Description

Dakota Lithium DL+ 12V 320Ah Lithium Battery

This high-capacity lithium battery delivers 320 amp hours of energy along with 1,000 CCA of engine-starting power. Although it shares the footprint of a standard Group 31 battery, it provides up to eight times more usable energy.

Introducing the DL+ 12V 320Ah: More Capacity, More Power, More Capability

Designed for demanding off-grid use, the new DL+ 12V 320Ah model is built to handle harsh environments and long-duration adventures. Whether you're powering an RV, navigating extended marine trips, or running a full off-grid system, this battery offers exceptional performance in a compact form. Its waterproof Group-31 case holds a massive 320Ah of capacity—delivering six times the usable power of a typical Group-31 AGM battery. With up to 1,000 cold-cranking amps available, it serves as both a dependable house battery and a powerful starter battery for boats, RVs, and other vehicles that require dual-purpose capability.

Built with Dakota Lithium’s well-known LiFePO4 cells, this battery offers over 5,000 recharge cycles—far surpassing traditional lithium or lead-acid options, which average around 500 cycles.


Specifications – Dakota Lithium DL+ 12V 320Ah

Storage Capacity: 320Ah
Voltage: 12.8V
Energy Output: 3840Wh

Charging:

  • Standard: under 200A

  • Max: 300A for less than 60 seconds

  • Recommended voltage: 14.4V

  • Maximum voltage: 14.6V

  • SLA chargers may function, but will reduce performance and longevity

  • Built-in heating allows charging below 32°F (0°C)

Certifications:

  • UN38 certified

  • UL1642-certified cells

  • Tested to IEC62133 standards

  • Meets all international transport regulations (air, ground, rail, and marine)

Internal Even-Heat Technology:
Automatically warms battery cells when charging in freezing temperatures, improving charging efficiency, lifespan, and cold-weather performance.

ISO Certification:
Manufactured under ISO 9001:2015 standards; select models produced in ISO 14001 compliant facilities.

Cold Cranking Amps (CCA):
1,000 CCA—suitable for most marine and large vehicle engines.

Terminals:
M8 bolt terminals included (15 ft-lbs max torque; 5 ft-lbs for adapters)

Dimensions:
15.06" L Ă— 7.24" W Ă— 10" H

Weight:
65 lbs (29.5 kg)

Cycle Life:
Up to 5,000 cycles at 80% capacity (compared to ~500 cycles for SLA batteries)

Operating Temperature:

  • Performs in extreme environments

  • Operational range: -20°F to +150°F

  • Internal heating supports charging in sub-freezing conditions

  • BMS high-temperature cutoff: 167°F (75°C)

Discharge Rates:

  • 200A continuous

  • 300A for up to 10 seconds

  • 1,000A for 2-second CCA pulse

Marine Grade:

  • IP65 water-resistance rating

  • Suitable for marine environments (not designed for full submersion)

Safety Features:
Active BMS providing:

  • Cell balancing

  • Low-voltage protection

  • High-voltage cutoff

  • Short-circuit protection

  • High-temperature protection

Compatibility:
Fits Group 31 and Marine 8D applications.

Charger:
Charger sold separately; recommended 12V 20A LiFePO4 charger.


Customer Assurance

  • 11-year manufacturer defect warranty

  • 1-year warranty on chargers, cases, and accessories

  • Free shipping and lowest-price guarantee

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