Dakota Lithium Marine 4 Bank, 40-Amp (10-Amp Per Bank) 12V Onboard Lithium Battery Charger

• High Output: 40A total charging capacity, with 10A dedicated per bank for efficient charging of up to four 12V lithium batteries.
• Marine-Grade Design: Built specifically for marine environments with durable, water-resistant construction.
• Smart Charging Technology: Ensures safe and optimized charging for extended battery life and performance.
• Compact and Easy to Install: Designed for convenient onboard installation in tight spaces.
• Reliable Performance: Engineered to withstand harsh marine conditions and provide consistent power.

12 volt lithium batteries: We highly reccomend you use a LiFePO4 compatible charger. 12v chargers for lead acid batteries may work, but will decrease performance and lifespan of the battery.

Free Adapter for 24V, 36V or 48V single batteries, by request: Easily charge a 24V, 36V, or 48V single battery, or a bank of 12V + 24V or 36V batteries. (adapter available by request for no additional cost)

Charger rating: INPUT 100-120VAC, 50/60HZ. OUTPUT: 14.4 volts, 40.0 amps, 10 amps per bank / channel

Terminal Connections: SAE connections make it easy to connect your charger to the battery. Install the ring terminals using the bolts on your terminals. Bolt black to your black terminal. Red to your red terminal. Do not short circuit. Then connect the charger via the SAE plug when you need to charge. Red light on the charger will turn on when charging. Light turns green when the battery is full.

Smart BMS communication: Charger will restart or "wake up" a Dakota Lithium BMS that has turned off a battery due to short circuit or excessive amp draw. Simply connect the charger to the battery to initiate a restart.

Lead Wire Lengths: Charger to SAE plug 36"SAE to ring terminals 24"Total length connected 60"AC Power Cord to Charger 60"

How fast will my battery charge?: Charges at a rate of 10 amps per battery (4 batteries supported). To determine your charging speed take the amp hour rating of your battery and divide by 10. For example, a 54 amp hour battery (Ah) would charge in 5.4 hours.

Can I charge my battery faster?: For most applications a charging time of 3 - 10 hours provides the longest lifespan for your battery. But if you have an application where you need rapid charging Dakota Lithium batteries can be safely charged in up to 1 hour (at a rate of 1C). For example, you could use a 20 amp charger with a 23 Ah battery for a 1 hour charge time. Charging at a 1 hour rate does reduce the lifespan over time. In our laboratory testing we found that the longest lifespan for Dakota Lithium batteries was at a charging speed of 0.3C or less (we recommend that the charger amp rating is 1/3 or less of the battery amp hour rating for longest lifespan).

What voltage should LiFePO4 batteries be charged at?: 14.4 volts is recommended for Dakota Lithium (LiFePO4) batteries. This charger charges at 14.4 volts.

Waterproof: Built for marine use. IP 67. Internal components are sealed in a waterproof putty that makes it impossible for water to short circuit the charger. Wiring is SAE waterproof plugs.

We do not ship internationally nor do we ship to Alaska, Hawaii, US Protectorates, P.O. Boxes, APO, FPO, or DPO addresses.

All orders must have a valid street address. Delivery to remote areas may incur additional costs up to $50-$200. Some remote locations deliveries may not be possible and alternative arrangements will need to be made which may incur additional charges.

It takes 1 to 2 days to process your order once it is received.

After your order leaves the warehouse, it typically takes 5 to 7 days to receive your product.

Dakota Lithium offers a 30 day money back guarantee if you are unsatisfied and would like to return your purchase. There is a 5% restocking fee and the purchaser is responsible for return shipping fees.  Please contact sales@solarsunscape to receive a RMA authorization prior to returning it.

How to ship a product back:

For all returns, DOT and FAA regulations require that lithium batteries ship via sturdy, specially-marked boxes with static-free wrapping. All battery returns must be shipped in UN-spec boxes and packaged according to federal regulations. Packaging is available from your local UPS Store or Fedex/Kinkos store.

Dakota Lithium  stands behind the quality of their products:

11 year manufacturer defect warranty on all batteries. If a mistake was made in building your battery they will repair or replace it. 

1 year warranty on chargers, powerbox case, and accessories.