Product Description

Dakota Lithium DL+ 12V 640Ah Dual Purpose LiFePO4 Battery

The Dakota Lithium DL+ 12V 640Ah Dual Purpose LiFePO4 Battery delivers massive energy storage and versatile performance for the most demanding 12 V applications. Combining engine-starting capability with deep-cycle capacity, this battery is ideal for RVs, large boats, off-grid solar systems, emergency backup power, and heavy-duty industrial use. Built with premium lithium iron phosphate (LiFePO₄) chemistry, it offers long life, reliable output, and robust construction for rugged environments. 

Dual Purpose Performance & High Cranking Power

This battery provides powerful performance with up to 1,000 Cold Cranking Amps (CCA) for dependable engine starts and a deep-cycle capacity of 640 Ah (~7.68 kWh) for extended runtime powering accessories, inverters, electronics, and house loads. The flat discharge curve of the LiFePO₄ chemistry ensures consistent voltage until the battery is nearly discharged. 

Advanced BMS & Cold-Climate Readiness

An integrated Battery Management System (BMS) protects against overcharge, over-discharge, short circuit, and temperature extremes, while active cell balancing maximizes longevity. The internal even-heat technology enables safe charging in cold temperatures down to around −20 °F, keeping performance strong in harsh climates. 

Rugged Durability & Connectivity

Designed with a waterproof, vibration-resistant IP65-rated enclosure and rugged construction, this battery is suitable for marine, off-grid, RV, and industrial environments. It also features a CAN Bus port for real-time data communication and system monitoring when paired with compatible electronics (optional).

What’s Included

  • Dakota Lithium DL+ 12V 640Ah dual purpose LiFePO4 battery
  • Integrated Battery Management System (BMS)
  • Internal even-heat technology
  • M10 marine/automotive terminal covers

Specifications

  • Nominal Voltage: 12.8 V
  • Nominal Capacity: 640 Ah (~7.68 kWh)
  • Chemistry: Lithium Iron Phosphate (LiFePO₄)
  • Cold Cranking Amps (CCA): 1,000 A
  • Continuous Discharge: 300 A
  • Peak Pulse Discharge: 600 A (20 s) / 900 A (5 s)
  • Charge Voltage: 14.4 – 14.6 V
  • Max Charge Current: 100 A (standard) / 300 A (peak)*
  • Low Voltage Cutoff: ~10 V
  • Operating Temperature: Discharge: −20 °F to 150 °F; Charge with heating below 32 °F
  • Enclosure Rating: IP65 (water resistant)
  • Terminals: M10 with marine/automotive covers
  • Dimensions (L × W × H): ~27.0″ × 8.07″ × 10.43″
  • Weight: ~121 lbs
  • Certifications: UL1642 (cells), UN38.3, IEC62133, ISO 9001:2015
  • Cycle Life: ~5,000+ cycles at 80 % DoD
  • Recommended Use: Engine starting, RV, marine, solar, off-grid, emergency backup
  • Warranty: 11-year manufacturer warranty

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