12v 46Ah Dakota Lithium Battery

12V 46Ah Deep Cycle U1 LiFePO4 Battery

Information
Description
Technical Specs

Engineered in a 35Ah U1 SLA case, but with 46Ah of Lithium Iron Phosphate (LiFePO4) technology, this battery has three times the power, half the weight, and lasts 5 times longer than a U1 sealed lead acid battery – providing exceptional performance & lifetime value.

Description

#GoFurther with three times the usable power of a traditional U1 battery. Engineered in a 35Ah U1 SLA case, but with 46Ah of Lithium Iron Phosphate (LiFePO4) technology, this battery has three times the power, half the weight, and lasts 5 times longer than a U1 sealed lead acid battery – providing exceptional performance & lifetime value. 46 Amp hours of capacity provides a full day of power for high amp draw electronics like Garmin and Lowrance fish finders, small trolling motors (<30 lbs thrust), off-grid applications, mobility scooters and electric wheel chairs, or anything where you need a longer run time. Same performance as our legendary 10 Ah battery, but with 460% more capacity. Optimal performance down to minus 20 degrees Fahrenheit (for winter warriors). Drop in replacement for U1 35Ah SLA batteries (same size, physical dimensions & terminals) but with three times (3X) longer run time. 12V 10A LiFePO4 charger is recommended (Sold Separate). Backed up by an 11 year warranty.

Technical Specifications

  • 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.
  • Voltage: 12.8V (Dakota Lithium 12V batteries can be used in series for up to 48V systems)
  • Size: 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.
  • Energy: 552 Watt-hours (Wh)
  • Terminals: F12 terminals (posts that screw in) with M6 size bolts. Max torque 15 ft. lbs.
  • Weight: 10.5 lbs (4.75 Kg). 65% lighter than a SLA or lead 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 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.
  • Discharge: 50 A max continuous discharge. The flat discharge voltage curve provides a 3X bigger capacity then a U1 SLA 35Ah battery.
  • Charge: 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.
  • 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
  • Certifications: 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.
  • Recommended Charger: 12V 10A LiFePO4 charger (Sold Separate)
  • 11 Year Warranty

  • Fast and Speedy Shipping

$305.00

Add to cart
Payment methods
Go to 12V 10A LiFePO4 Battery Charger 12V 10A LiFePO4 Battery Charger

Include 12V 10A LiFePO4 Battery Charger (+$60.00)

Go to Folding Fast-Charge 12V Solar Panel Folding Fast-Charge 12V Solar Panel

Include Folding Fast-Charge 12V Solar Panel (+$205.00)

Additional information

Shipping
  • Shipping policy

    At Dakota Lithium, our goal is to provide transparent and reliable shipping information for our customers. Orders are processed within 24-48 hours upon receipt, excluding weekends and holidays. Orders placed after 5 pm will be processed the next business day. Batteries ship FedEx and will arrive in 5-7 days to most of the US. For shipping quotes to countries outside the United States and Canada, please contact us at sales@dakotalithium.com.

  • Shipping Costs

    Shipping costs for Dakota Lithium batteries are calculated per battery due to their classification as hazardous materials (hazmat), ensuring safe and compliant handling and transportation. Shipping costs to Alaska and Hawaii may be higher due to federal law that requires that batteries ship Air Freight and have Hazmat protection. If you need to return a battery, a 10% restocking fee will apply. For details on our return policy, refunds, order edits, and exchanges, please visit our returns page. In case of lost or damaged orders, contact our support team for assistance. Orders may take longer to arrive due to variables outside of our control. We will communicate any potential delays and provide timeline estimates to keep you informed. After placing an order, you will receive a shipment confirmation email with tracking information. For any issues with lost packages, please contact support@dakotalithium.com for assistance. We appreciate your understanding and thank you for choosing Dakota Lithium.

FAQ
  • Twice the Power?

    Yes! Here at Dakota Lithium we build all of our batteries with lithium iron phosphate technology which has many distinct advantages over traditional batteries. Including 60% less weight, a charging speed that is up to 5X faster, and a significantly longer lifespan (5-10 years longer on average). One of the most noticeable advantages however is the flat voltage curve. Unlike a lead acid battery where the voltage drops as you use the battery a Dakota Lithium battery has a steady voltage for 99% of the battery’s charge. That means you get all the power down to the last drop and double the usable power of traditional batteries.

  • Are Lithium Batteries Safe?

    Dakota Lithium batteries are 100% safe & reliable. Our signature chemistry, Lithium Iron Phosphate (LiFePO4), does not contain rare earth elements (like Cobalt) or heavy metals, is non-toxic, including no lead or acid, is non-corrosive, does not off gas, requires no watering or maintenance, can be placed in any orientation, and unlike other lithium batteries will not explode or catch fire. In addition, each Dakota Lithium battery is protected from over heating, over charging, and short circuiting, by a battery management system (BMS) microchip that also extends the lifespan and is contained in a rugged, waterproof case (although enough water can conduct electricity between the terminals, so don’t submerse the battery). For best performance & reliability we recommend using a LiFePO4 charger.    

  • How do I charge a lithium battery?

    Dakota Lithium LiFePO4 batteries perform best when charged by a LiFePO4-compatible battery charger. LiFePO4 batteries require a different charging profile and voltage requirements compared to traditional battery chargers. Chargers designed for different chemistries may work, but they may not charge a Dakota Lithium battery to full capacity. It’s important to select a charger that has a LiFePO4-compatible constant-current constant-voltage (CC/CV) charging profile, provides the correct charging voltage for your battery, does not exceed the charge current (amp) for the battery, and has a charge indicator LED to let you know when the battery is fully charged. You can find more information on How to Charge Dakota Lithium and LiFePO4 batteries on our website. If you need help finding a compatible charger for your Dakota Lithium battery, or if you want to check your current charger compatibility, please reach out to our support team.

  • Will cold weather affect my battery?

    Your Dakota Lithium battery will discharge normally between a range of -20F and 120F (-29C to 49C). DL batteries are commonly used among ice fishers for their flashers and ice augers, so they are quite resilient and are frequently used in cold climates. In cases of extreme cold however, it is recommended that the batteries be insulated. We also do not recommend charging our batteries below freezing temperatures. If you are planning to regularly charge your battery below freezing temperatures we recommend the DL+ 12V 135Ah battery which has an internal heating element and is optimal for use in cars, trucks, RVs, off grid solar, and any application where the battery will be charged regularly in extremely cold environments (like a North Dakota winter).

  • Do You Have a Military Discount?

    Yes! Dakota Lithium support active and former members of the US or Canadian armed forces. You can use the code DakotaMilitary to get a 5% discount at checkout. If you provide verification through email, you will receive an additional 5% off, making the total discount 10%. Please indicate the branch of the military or unit where you served in the order notes. Many veterans and pilots, including one of our founders who flew F-16s, work for Dakota Lithium. We’d love to hear your story! (P.S. The discount code operates on the honor system, so please only use it if you are a veteran). If you represent a veterans’ organization interested in partnering with Dakota Lithium, you can arrange a group purchase at wholesale prices by contacting sales@dakotalithium.com. For donations, please complete the philanthropy application form available here.

  • How can I become a dealer?

    1) For wholesale & bulk orders simply buy in bulk on the website. Bulk pricing is available on the product page (see bulk pricing discount) or on the Wholesale / Custom page. 2) To become a dealer fill out the form at the bottom of our dealer page. Or contact sales@dakotalithium.com

  • Can I use this to start my car/boat engine?

    We have two battery options available for starting motors: the LTO Automotive Cranking battery and the DL+ Dual Purpose line. Both are designed for starting motors, with a 1000CCA equivalent of engine starting power for boat, car, or truck engines. The DL+ line also offers our legendary deep cycle capability in addition to engine starting power. Please note that our standard deep cycle packs do not have cranking ability and cannot be used for starting motors.

  • What Trolling Motor Battery Do You Recommend?

    Dakota Lithium is a proud sponsor of over 200+ professional athletes in the fishing industry. Here’s batteries sizes recommended by our pros depending on the size of your trolling motor: Motor Thrust / Max Amp Draw (A) @ Voltage (V) / Recommended Battery 20 lbs / 20A @ 12V / DL 54 or DL+ 60 25 lbs / 25A @ 12V / DL 54 or DL+ 60 30 lb / 30A @ 12V / DL 54 or DL+ 60 or DL 100 45 lb / 42A @ 12V / DL 54 or DL+ 60 or DL 100 55 lb / 50A @ 12V / DL 54 or DL+ 60 or DL 100 70 lb / 42A @ 24V / 24V Single or DL 54 x 2 or DL+ 60 x 2 or  DL 100 x 2 80 lb / 56A @ 24V / DL+ 60 x 2 or DL 100 x 2 or DL+ 320 x 2 101 lb / 46A @ 36V / 36V Single or DL+ 60 x 3  DL 100 x 3 or DL+ 320 x 3 112 lb / 52A @ 36V / 36V Single or DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 >112 lb / Up to 100A @ 36V / DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 For wiring multiple batteries in series we recommend Connect Ease trolling motor connection kits available on our trolling motor battery page. For a deep dive on trolling motor batteries read How to Choose A Lithium Battery for Trolling Motors

  • What battery do I need for my RV or Camper Van?

    The industry standard house battery size used in most RVs, Campers, and #VanLife builds is the DL 100Ah battery. This is a drop in replacement for AGM and most lead acid batteries. If you are charging off your engine’s alternator we recommend a Victron DC-DC smart charger. If charging off solar panels we recommend a Victron Smart Solar charge controller, or if you have a solar charge controller choose the lithium setting. A handy size chart for number of batteries needed by size of RV is available here.

Warranty
  • Dakota Lithium Warranties

    We stand behind the quality of our products: 1) 30 day money back guarantee on all orders. If you are unsatisfied for any reason with one of our batteries you can return it for a refund up to 30 days after purchase. 2) 11 year manufacturer defect warranty on all batteries. If we made a mistake building your battery we will repair or replace it. See warranty & return policy for details. 3) Lifetime technical support. Reach out to support@dakotalithium.com for help from our team of experts. 4) 1 year warranty on chargers, powerbox case, and accessories.

  • 30 Day Money Back Guarantee

    If you are unsatisfied for any reason with one of our batteries you can return it for a refund, less a 5% restocking fee, up to 30 days after shipping date.

2024/2025 Dakota Lithium Catalog

Chuck Hawkins

I'm really happy with my new 46Ah battery! I purchased this battery to power a Humminbird Solix 12" fish finder on the bow of my 2008 Champion 198 bass boat. So far everything is working great! I'm getting about 11.5 hours of continuous runtime which is plenty for any bass tournament. I was able to mount the battery in my rod locker! Out of sight and out of mind! You can check out the install here: https://www.youtube.com/watch?v=ktLchq-Voaw Thanks Dakota Lithium for such a great battery!

Thomas S.

Charged it once so far, and it took longer than expected. Around 4 hours.

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.

Les

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!
Trustpilot

Be The First to Know

Get access to exclusive deals, hear about new products before anyone else, and enjoy tips, tricks, and DIY hacks from our community of experts.