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DL+ 12V 640Ah LiFePO4 Dual Purpose Battery with CAN Bus

SKU
Original price $4,699.00 - Original price $4,699.00
Original price
$4,699.00
$4,699.00 - $4,699.00
Current price $4,699.00

An incredible 640 Amp Hours of capacity allows you to replace 12 AGM or lead acid batteries with a single DL+ battery. Plus 1,000 CCA of engine starting power, internal heating while charging for use in extreme cold, and CAN bus and NMEA communication.

Built to power an off grid farm or home during a cold North Dakota winter, the DL+ 12V 640 Ah battery is our most compact and powerful battery yet -- ready for long expeditions in your RV, extended ocean voyages in your boat, or plenty of power for your air conditioner or off grid system.

Engineered for maximum energy density, this battery has 640 Amp Hours of capacity in a waterproof battery case the size of a two 100 Amp Hour batteries. That's 6X the amount of usable power, allowing you to replace a marine or solar battery bank of 12 AGM or lead acid batteries with a single DL+ 640Ah.   Plus 1,000 cold cranking amps of engine starting power, making this battery the ultimate single battery solution for boats, RVs, food trucks, barns, garages, workshops, or any vehicle or space where you need a house battery that can jump start your engine.

Also includes internal heating for charging in extreme cold. CAN bus communication port allows the battery to talk CAN bus electronics, allowing you to build smart power systems.   Built out of Lithium Iron Phosphate (LiFePO4) technology and reinforced with a ruggedized marine spec plastic case, this is a battery built to last. With a lifespan of 5,000 charge cycles this battery will last up to 6 times longer than your typical AGM battery - providing exceptional value over time.

Optimized for marine/boating, solar energy, RVs & electric vehicles. LiFePO4 optimized charger included. 11 year warranty.   Link in parallel for added capacity. 1 unit is perfect for replacing the need for a generator on a large boat, very large RV, Skoolie, or off grid cabin or installing an off-grid air conditioning system. 2 units is ideal for most off grid homes. 4 units is 30 kwh of energy storage and is enough for a large 4 bedroom home with a solar array, a working farm, or business.    

Features

  • Massive 640Ah Capacity – Replace up to 12 AGM or lead-acid batteries with a single Dakota Lithium 12V 640Ah battery, providing 6X the usable power for extended energy storage.

  • 1,000 Cold Cranking Amps (CCA) – Powerful engine-starting capability, perfect for boats, RVs, and off-grid systems, offering both deep cycle energy and starting power.

  • Extreme Cold Performance – Built-in internal heating allows for charging and usage in freezing temperatures, making it ideal for off-grid living in harsh environments.

  • Smart Communication – CAN bus and NMEA communication compatibility allows seamless integration with smart power systems and electronic controls in marine and off-grid applications.

  • Durable LiFePO4 Technology – Engineered to last with up to 5,000 charge cycles, delivering 6X the lifespan of traditional batteries, all housed in a rugged, waterproof, marine-spec case.

 

Specifications

Warranty

Best in Class 11 Year Warranty. That is 10 years more warranty then most lead acid batteries.

Storage Capacity

640Ampere hours (Ah). Dakota Lithium batteries provide consistent power for all 640 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.

Cold Cranking Amps

1,000 CCA is adequate to start most boat and large vehicle engines

Energy

7680Wh

Voltage

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

Size

27"L x 8.07"W x 10.43"H (686mm ×205mm × 265mm). Height is to the top of the terminals.

Weight

121 lbs (55Kg)

Lifespan/Lifecycles

Up to 80% capacity for 5,000 cycles in recommended conditions, 70% capacity at 5,000 recharge cycles. Half-life (50% capacity) of 6,000 - 7,000 re-charge cycles (Typical SLA has 500 cycles). Backed up by an 11 year warranty.

Discharge

300A max continuous, 600A max 20-second pulse, 900A max 5-sec CCA pulse. LiFePO4 chemistry has a flat voltage curve, meaning this battery will maintain a voltage of >12V for the full discharge cycle in most applications.

Charge

100 A standard charge, 300A max charge current for 60 sec. Included is a LiFePO4 compatible charger. A SLA charger may work, but will reduce performance and lifespan of the battery. Even heat technology allows for charging below 32'F. Internal even-heat technology allows for charging below 0°C/32°F

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). Internal even-heat technology allows for charging below 32°F. BMS high temp cut off at 167°F / 75°C..

INTERNAL EVEN-HEAT TECHNOLOGY

Increases performance in extreme cold. When charging the battery in temperatures below 0°C/32°F DL's internal heating element will warm the cells to 0°C/32°F. This increases the lifespan, performance, and efficiency of the battery.

Safe & Reliable

Includes active BMS protection circuit that handles cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection and high temperature protection for increased performance and longer life

Terminals and Posts

M10 Terminals with marine & automotive grade terminal covers.
Marine Grade & WaterproofMax IP65 water resistance rating. Appropriate for marine environments, not submersible.

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 certified by ISO 9001:2015 for lithium battery engineering, manufacturing, and quality control. This means that the battery systems available at Dakota Lithium are designed and manufactured to the highest ISO 9001:2015 engineering standards. In addition, quality control is completed by our US based engineering team and follows ISO 9001 standards. This added layer of safety, quality, and reliability ensures that your battery will last a long, long time. 

Free LiFePO4 Charger Included

12V 50A charger included ($299 value). 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.

CAN bus

CAN bus communication port for connecting to marine, off grid, and automotive electronics. 9 pin CAN plug with hardware included.

On/Off control of battery terminals via external data port

Control the terminals of your pack externally, or remotely. Two analog control pins allow you to connect either or both to a (third) power pin to disable charging or discharging. Independent Charge/Discharge shut offs can be triggered by an external switch or logic controller. Shut off only the charging function, or only the discharging function, or both, and re-activate them at will. Useful in larger automated systems or local smart-grid projects.


Warranty

  • 1) 30 day money back guarantee on all orders. If you are unsatisfied for any reason with one of your new batteries you can return it for a refund up to 30 days after purchase.
  • 2) 11 year manufacturer defect warranty on all batteries. If there was a mistake building your battery it will be repaired or replaced. 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. 


Product Instructional Manual



Frequently Asked Questions

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 batteries perform best when charged by a lithium compatible charger. Lead acid or SLA chargers, on-board chargers for AGM batteries, or other non-lithium chargers will charge a Dakota Lithium battery but only to 70-80% of capacity. This is because Dakota Lithium iron phosphate (LiFePO4) technology charges and is full at a higher voltage then traditional batteries (Dakota Lithium charges at 14.4 Volts). Chargers with a lithium battery setting or designed for lithium will charge at the appropriate voltage.  For troubleshooting tips download the Dakota Lithium battery user manual here.

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).

Shipping Policy

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. Products ship FedEx or UPS Ground and will arrive in 5-8 days to most of the US. You will receive a tracking number when your battery ships.

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.

The USPS does not allow for batteries to be shipped to Post Office boxes (PO Box), for shipping address please use a street address. 

All lithium batteries (LiFePO4 included) must be shipped via ground shipping. Typical delivery time in the US for in stock batteries is 5-7 business days plus 1-3 days lead time to pack and ship your battery. Lithium batteries cannot be shipped overnight, or express due to federal shipping restrictions.

Return Policy

In the unlikely event you are having an issue with a Dakota Lithium battery, there is a straight forward warranty & return policy:

  • For all returns or warranty claims contact support@all4tinyhomes.com
  • 30-day money back guarantee. Returns of undamaged batteries may be issued full refunds less a 5% restocking fee.
  • World beating / best in class 11 year warranty on all batteries.
    • Dakota Lithium offers a 11 year manufacturers defect warranty from the date of purchase [fine print available here]. The average lifespan of a Dakota Lithium Iron Phosphate battery is 2,000 recharge cycles, or roughly 5 – 10 years with regular use that is appropriate to what the battery is designed for (see the specifications of the battery). This warranty does not cover negligence or misuse of the battery or normal wear and tear. If it is deemed that the battery was used improperly, you will be subject to a $150 an hour repair charge plus parts and shipping.
    • Dakota Lithium 12V to 48V batteries are not intended or warrantied for serial wiring applications above 48V.
    • To submit a warranty claim, please contact the original place of purchase. The battery may be required to be shipped back to us (Dakota Lithium) for further inspection.
  • 1 year warranty on all accessories & complimentary products (chargers, powerbox cases, volt meter, etc).
  • Free lifetime technical support & free battery analysis.
  • Warranty only applies to original owner (non-transferable).
  • Warranties can be used for an exchange of a component only once.
  • Customer pays return shipping on returns or warrantied component inspections. Shipping costs for qualified returns will be refunded by Dakota Lithium. Please note some battery returns may require special documentation and packaging, and these instances will encounter extra fees. This is in order to correctly comply with lithium battery shipping regulations. For all return shipping we recommend using a local shipping service like FedEx office or the UPS Store.
  • If you have a quality issue with a product please contact  support@all4tinyhomes.com to help diagnose the problem. If a product does not meet our high quality standards, then you will be issued a replacement component or fix the original at no additional cost. Replacement components will only be sent after we have received your returned component and finished an inspection to determine the cause of any problems. All 4 Tiny Homes is not responsible for return shipping.
  • Do-It-Yourself modifications or damage due to gross negligence or abuse are not covered by the warranty.
  • Return shipping depends on what is being shipped and the logistics provider. Before returning a battery please contact support@all4tinyhomes.com for the return address for help.   In order to comply with DOT regulations, lithium batteries are required to ship via sturdy, specially marked boxes. Available at UPS Stores and FedEx office locations.

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