12V 18Ah
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Dakota Lithium 12V 18Ah Deep Cycle LiFePO4 Battery (Open Box)

  • Best for Trolling, Kayak's, and Fishing Electronics
  • Forward-Facing Sonar
  • Ice Fishing Power
Information
Description
Technical Specs

These batteries are fully tested and ready to perform, but may show minor cosmetic wear such as light scuffs, case marks, or label wear from returns, handling, or installation. Many were briefly installed before a customer realized they needed a different size or setup. They are discounted because they cannot be sold as brand-new inventory. If you prefer a brand-new battery, those are available on our site. For warranty details or questions, review the warranty section or email sales@dakotalithium.com before purchasing.

Description

Built for high performance in cold Dakota winters, this 12 volt, 18 amp hour (Ah) lithium battery packs a big punch in a small package. Engineered to fit inside a standard 12Ah SLA case, but powered by advanced Lithium Iron Phosphate (LiFePO4) technology, this battery delivers three times the power at half the weight of traditional lead-acid, providing exceptional performance and lifetime value.

Cold Weather Performance

Don’t let the frost slow you down. This battery is designed for optimal performance down to -4°F, making it the ultimate power source for “winter warriors.”

Key Features

  • Extended Run Time: 18 Amp hours of capacity provides a full day of power for high-amp draw electronics like Garmin fish finders, ice augers, or any gear requiring long-lasting reliability.

  • Compact Power: A direct drop-in replacement for 12Ah SLA batteries. You get the same physical dimensions and terminals, but with 2.5X the run time.

  • Longevity: Lasts up to 8 times longer than a standard 12Ah sealed lead acid battery.

Technical Specifications

  • 2 Year Warranty: Open Box Warranty
  • Storage Capacity: 18 Ampere hours (Ah). Dakota Lithium batteries provide consistent power for all 18 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.
  • Voltage: 12.8V (Dakota Lithium 12V batteries can be used in series for up to 48V systems)
  • Size: 5.8"L X 3.8"W X 3.8"H (149mm X 97mm X 98mm)
  • Energy: 216wh (Watt Hours)
  • Terminals: F2 Terminals (spade socket). When used in salt water, or corrosive, environments we recommend applying a small amount of dielectric grease on the blades of each terminal. It helps extend the lifespan.
  • Weight: 5.5lbs (2.5kg) Thats 65% lighter than standard SLA batteries
  • Lifecycles (battery lifespan): Up to 80% capacity for 5,000 cycles in recommended conditions. The typical automotive SLA has 500 cycles. Dakota Lithium batteries last so long that the price per use is a fraction of traditional batteries.
  • Charge: 10A max, 14.4V recommended, 15V max. Please note: this battery should be charged between 32°F to 113°F (0°C to 45°C) and with a LiFePO4 compatible charger.
  • Discharge: 10A continuous, 20A max. Note: For small trolling motors, we recommend using our 12v 54Ah battery to maximize your time on the water
  • Includes active BMS protection: Contains a high discharge capable circuit that handles cell balancing, low voltage cutoff (10V) preventing over discharge, high voltage cutoff (15V) preventing over charging, short circuit protection and temperature protection for increased performance and longer life.
  • Certifications: Dakota Lithium's cells are UL1642 certified and have been tested per IEC62133 and UN 38.3 standards. They meet all US and international regulations for air, ground, and train transport.
  • ISO 9001:2015: Dakota Lithium is ISO Certified per 9001:2015 standards, and select models are produced in ISO 14001 certified facilities.
  • IP 65 Rating: Protected from dust and resistant to low-pressure water from any direction, but not designed for submersion.
  • Series or Parallel: BMS can support wiring these batteries in series or parallel for up to 4 units (up to 48V series )
  • Charger Sold Separately: This battery should be charged using a LiFePO4 compatible charger. 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.
  • 2 Year Warranty

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Open Box, Refurbished & Scratch and Dent Inventory

These batteries are not considered brand-new inventory, but they are fully functional, tested, and ready for use. Each unit has been inspected by our team to ensure it meets Dakota Lithium performance standards.

Most units were purchased, shipped, and briefly handled or installed before being returned. In many cases, customers realized they needed a different capacity, voltage, or configuration after receiving the product. Because of this, the battery cannot be returned to new inventory.

Cosmetic condition may vary. This can include light surface scratches, minor scuffs on the case, or slight wear on labels or silk screening from normal handling, unboxing, or installation. These are cosmetic only and do not impact performance.

These batteries have not been used for extended periods and are, in most cases, functionally close to new. Discounted pricing reflects cosmetic condition and inventory classification, not a reduction in performance.

This category may also include legacy models replaced by newer versions. These products will be sold until inventory is depleted and will not be restocked.

If you want a battery in perfect cosmetic condition, purchase a new unit from our standard lineup.

All applicable warranty terms apply as outlined in our warranty policy. Review warranty details before purchasing. For questions about fitment, condition, or performance, contact sales@dakotalithium.com.

 

FULL WARRANTY

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