11 Year Warranty
  • Dakota Lithium 12v 20Ah Battery
The perfect SLA 12Ah replacement battery

Dakota Lithium 12v 20Ah Battery

(126 reviews)
  • Free Shipping to Lower 48 & Canada
  • 11 Year Warranty
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Dakota Lithium 12v 20Ah Battery

(126 customer reviews)



Engineered in a 12Ah SLA plastic case, but with with 20Ah of Lithium Iron Phosphate (LiFePo4) technology, this battery has three times the power, half the weight, and 5x the lifespan of a 12Ah sealed lead acid battery.

Available on backorder

SKU: PID12V18AH Category: Tags: ,
Need tons of power? Bulk pricing discount
Need tons of power? Bulk pricing discount
For larger quantities contact sales@dakotalithium.com
Double the Power
of Traditional Batteries
Half the Weight
Charges 5X Faster
Lasts 8X as long
Greatest Lifetime Value


11 Year Warranty

World beating, best in class, eleven year manufacturer defect warranty.


20 Ampere hours. Dakota Lithium batteries provide consistent power for all 20 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, especially in cold temperatures. You get all the juice down to the last drop.




256 Watt-hours (Wh)


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.

USB / Voltmeter

USB B & C ports provide easy charging for personal electronics. Voltmeter included for monitoring battery power levels.


6.3" x 3.94" x 3.86" (160mm x 100mm x 99mm)


4.25 lbs (1.93Kg) That's 65% lighter then a SLA battery.

Lifecycles (battery lifespan)

Up to 80% capacity for 5,000 cycles in recommended conditions. The typical SLA has 500 cycles. Dakota Lithium batteries last so long that the price per use is a fraction of traditional batteries.

Operating temperature

Ideal for rugged & harsh environments. Much better than SLA or other lithium’s. -20°F min, +120°F max optimal operating temps (battery performs well down to -20°F). Avoid charging below 32°F.


Please note: For small trolling motors <20 lbs of thrust, we recommend using two of these batteries in parallel to create a 40 Amp continuous discharge rate and 40Ah of capacity. This increases runtime and lifespan of the battery.


10A max, 14.4V recommended, 15V max. Please note: this battery should be charged using a LiFePO4 compatible charger. A SLA charger may work, but will reduce performance and lifespan of the battery.

Includes active BMS protection

Contains a circuit that handles cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection and high temperature protection for increased performance and longer life.

Series or Parallel

BMS can support wiring these batteries in series or parallel for up to 4 units (up to 48V series or to 12V 80Ah parallel)


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, 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.

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.

Suitable for:

  • Fish Finders, Flashers, & Boating Electronics
  • Garmin Fish Finders
  • Ice Fishing
  • LiFePO4 Replacement for SLA 12v
  • Mobility Scooters (triple your battery range)
  • 24V Electric Bikes & Scooters
  • Industrial Batteries
  • Robotics
  • Hunting, Camping, and Trail Cameras
  • Remote Power
  • Outdoor Adventures
  • 6-dzm-12 battery equivalent
  • 12V 12Ah SLA Equivalent Size

Experience the Dakota Lithium Difference

Engineered in a 12Ah SLA case, but with with 20Ah of Lithium Iron Phosphate (LiFePo4) technology this, battery has three times the power, half the weight, and lasts 8 times longer than a 12Ah sealed lead acid battery. Optimal performance down to minus 20 degrees Fahrenheit (for winter warriors). Plus a best in class 11 year warranty.

126 reviews for Dakota Lithium 12v 20Ah Battery
James S.

This battery ran my Garmin Echomap 93SV for a 12 hour day on the water and only dropped to 13.3 V. That is amazing.


Light weight and has the amp hours to keep my Garmin running all day.


Haven’t had a chance to test the 20 ah yet…..installed in back of starboard rod box. Using it to power 1 garmin 73 sv uhd and 1 93 sv uhd. Should give me plenty of run time. Pleasantly surprised to receive the 20 ah with volt meter and 2 usb ports for price of 18 ah Dakota…..Also have a 60 ah dual purpose Dakota for cranking battery……luv it!!


Randy Bulau

Great battery

Todd R.

I purchased the battery to power my panoptics box for live view and the clarity improved dramatically 😁

Matthew L.

Very Powerful little battery

Chris Birt

I upgraded my son’s 12V 4×4 electric jeep with these batteries. They were a direct replacement for the old 12ah ones. The performance is better then what they claimed. Customer service was amazing! Great overall purchase! Thanks guys.

Matthew L.

Fantastic Small Battery

Terry Hamilton

Great product and light weight


For more information or larger quantity inquiries, visit our B2B page or please call our sales team at 1-855-743-3279.

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