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Dakota Lithium Ultra Fast 12V 20A Battery Charger

Built to charge large batteries quickly, this lithium / LFP / LiFePO4 charger will charge any lithium battery at a rate of 20 amps. Dakota Lithium has optimized this charger for use with our lithium iron phosphate batteries (LiFePO4 or LFP). Not recommended for charging lead acid or SLA batteries, it is too powerful. Built in a high tensile aluminum case for rapid cooling, this charger is rated at 20 amps and will charge a Dakota Lithium 54 Ah battery in 2.5 hours or a 100 Ah battery in <5 hours. For smaller batteries (<25 Ah) we recommend the 3 amp charger. All 12 volt Dakota Lithium batteries should be charged using a LiFePO4 compatible charger like this one. SLA chargers will reduce the performance and lifespan of the battery.

12V 20A Battery Charger Specifications

FOR 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.

CHARGER RATING
INPUT 100-120 VAC, 50/60HZ. OUTPUT: 14.4 volts, 20.0 amps

TERMINAL CONNECTIONS
Anderson SB 50 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 Anderson 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.

HOW FAST WILL MY BATTERY CHARGE?
Charges at a rate of 20 amps. To determine your charging speed take the amp hour rating of your battery and divide by 20. For example, a 54 amp hour battery (Ah) would charge in 2.5 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.

ADD-ON FOR 54AH, 100AH, OR 170AH
A 10 amp charger is included with every Dakota Lithium 54Ah and 100Ah battery purchase. This charger is an add-on and charges twice as fast. Great for RVs, Boats, Solar, or other applications where you need to charge your batteries as fast as possible.

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12v 20a charger

dakota lithium logo

12V 20A Battery Charger is suitable for:

  • Charging 12V Batteries Fast
  • Charges at a Rate of 20 Amps
  • Optimal for larger 54AH, 100AH, 170AH Batteries
  • Compatible with All 12 Volt Dakota Lithium Batteries 23AH and Larger
  • LiFePO4 Compatible Charger
  • Lithium Titanate Oxide (LTO) Battery Charger
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Dakota Lithium 12V 20A Battery Charger

12V20ACHARGER


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