• 12V 46Ah Dakota Lithium U1 LiFePO4 Battery
Perfect for Graphs, Fish Finders, Scooters & More

12V 46Ah Dakota Lithium U1 LiFePO4 Battery

(18 reviews)
  • Free Shipping to Lower 48 & Canada
  • 11 Year Warranty
  • FREE 12V 10 Amp Lithium Charger Included
  • Back in Stock Sale! $100 Off
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Need tons of power? Bulk pricing discount
Need tons of power? Bulk pricing discount
For larger quantities contact sales@dakotalithium.com
Triple the Power
of Traditional Batteries
Half the Weight
Charges 5X Faster
Lasts 5X as long
Greatest Lifetime Value


11 Year Warranty

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

Storage Capacity

46 ampere hours (Ah). Dakota Lithium batteries provide consistent power for all 46 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.


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


7.6”L x 5.1” W x 6.8” H (194mm x 132mm x 173 mm). U1 size (Group 21)

Drop in Replacement Size U1 35Ah SLA

U1 equivalent for physical dimensions & terminal compatibility.


552 Watt-hours (Wh)


F12 terminals (posts that screw in) with M6 size bolts. Max torque 15 ft. lbs.


10.5 lbs (4.75 Kg). 65% lighter than a SLA or lead battery.

Lifecycles (battery lifespan)

Up to 80% capacity for 6,000 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 batteries. -20'F min, +150'F max optimal operating temps (battery performs well down to -20'F). Avoid charging below 32'F. Discharge cut off at - 20'F / -20'C. Charge cut off at 23'F / - 5'C. BMS high temp cut off at 167'F / 75'C.


50 A max continuous discharge. The flat discharge voltage curve provides a 3X bigger capacity then a U1 SLA 35Ah battery.


Recommend for longest life 10A or less (.2C), Max continuous 23A (.5C). 14.4 V recommended, 15 V max, BMS protection from over charging will cut off at 15V. Included is a free 12V 10 Amp (A) LiFePO4 compatible charger that charges at the recommended 14.4 Volts..

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.

Cold temperature charging protection

No low temperature protection


All DL batteries are UN 38 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.

Trolling Motor Compatibility

Perfect for trolling motors with 30 lbs of thrust or less. For larger 12v motors the DL+ 12V 60Ah battery is recommended. For 24V & 36V trolling motors the single 24V 60 Ah or 36V 60 Ah batteries are recommended.

Charger Included

Free 12V 10A LiFePO4 charger included

Suitable for:

  • Deep Cycle Applications
  • Marine Applications
  • Drop in Lithium replacement for U1 35Ah SLA batteries
  • Garmin Livescope
  • Lowrance Fish Finders
  • Trolling Motors <30lbs of thrust #FishLonger
  • Mobility Scooters
  • Electric Wheel Chairs
  • Link in series for 24 Volts

Experience the Dakota Lithium Difference

The Dakota Lithium 12V 46Ah battery is built with Dakota Lithium's legendary LiFePO4 cells. 6,000+ recharge cycles (roughly 10 year lifespan at daily use) vs. 500 for other lithium batteries or lead acid. Optimal performance down to minus 20 degrees Fahrenheit (for winter warriors). Plus three times the power of lead-acid batteries at half the weight.

18 reviews for 12V 46Ah Dakota Lithium U1 LiFePO4 Battery
Pool Service by Jason Inc

Amazing power and longevity. Ran two weeks on my riptide vacuum before needing to charge. It’s definitely more powerful than my 35ah lead acid battery and weighs less than half. Super happy with this product mad at myself for not ordering sooner.


I have only used my Dakota 12V 54ah a few times so far. BUT, it has been great! I have ran my LiveScope and one screen for 6 hours without the battery dropping below 12.9 volts. I like the fact the battery is Lithium (not lead/acid), is small and is lightweight. Everything I expected so far!

Roger C.

Very compact and light weight. It took about an hour and 15 minutes to charge it for the first time, right out of the box. I used Velcro to secure it in the floor of a storage compartment on the front deck of my bass boat. I only wired my live scope to this battery and so far it has worked flawlessly. I would recommend this battery. Would have given a 5 but it took 2 weeks via UPS to get delivered.

Rick Kirkpatrick

So far so good 👍 Let’s see how they’re doing 2 or 3 years down the road because the original batteries also worked great for the first year too.

Onslow County Motor Company

Customer is very satisfied

Claude Gagne

WOW! What a difference to my old batteries…I can go days without charging. I have a Fortress 1700 DT mobility scooter. I needed that power!

Gary Robson

I purchased the wrong AH battery for my Garmin LiveScope. Dakota Lithium allowed me to return that battery for a full refund. Not many businesses take pride in customer service anymore. I purchased a 46AH to replace the smaller battery, and it works great. Very happy with my selection with Dakota Lithium. Gary Robson


A lot lighter than expected and very compact, Great!!!

Jeremy Rupp

Excellent customer service! Very well taken care of.


Bulk pricing available at checkout. For larger quantities visit our B2B page or call 1-855-743-3279.

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