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ARK 51.2V 100AH Modular Lithium Battery Front View

ARK 25.6V 200AH Modular Lithium Battery (ARK 256200)

by ARK Battery
Save $555.00
$3,525.00
$2,970.00

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Ark Battery, 200AH, 25.6V (24V nominal) 5.12kwh lithium iron phosphate battery with terminals on front and back, Impactiv balancing system, LCD, handles on front and side. Supports vertical installation or horizontal using the Ark flex racking system.

 

 

ARK BATTERY FLEX RACKING

FLEX RACKING
ARK Battery Flex Racking is laser-formed from 3/16 and 1/4” steel and supports battery stacks up to seven high.

MODULAR DESIGN!
Modular design! Flex racking supports adding additional ARK Batteries to your bank down the road. The assembly hardware is included with each battery.


IMPACTIV BALANCING

Every ARK Battery is equipped with a special balancing system to ensure that all cells are charged and discharged equally. This serves the same purpose as ‘equalizing’ does for a lead-acid battery. While LiFePO4 batteries may not be equalized externally, it is critical that all cells within maintain the same voltage. An ‘imbalanced’ battery will result in nuisance BMS shut-offs, lower capacity and a drastically reduced cycle life.

Most batteries in today’s market come with a small balancing system known as passive balancing. In passive balancing, a set of resistors begin to dissipate (burn off) power from any cell that has an individual voltage higher than 3.6V. This dissipation typically occurs at 50-100 ma (5% to 10% of 1 amp). We have found this balancing method to be ineffective to meet the stringent requirements of cell balancing. In short, it is too slow as well as inefficient.

IMPACTIV balancing, used in all ARK Batteries channels extra power from high-volt cells to low-volt cells, and deploys additional dissipative consumption should a cell reach critically high voltage.

PASSIVE BALANCING

 Dissipates a small amount of power (usually 1/10 Amp or less) when a cell reaches a critically high level.

IMPACTIV BALANCING

 Transfers current (power) from highest cells to lowest cells to keep all cells equal.

IMPACTIV balancing kicks in any time that a single cell’s voltage varies from the rest of the pack. This can be a higher voltage (top-balancing during charge) or a low cell (bottom balancing, during discharge). A special extra boost is applied if a cell’s voltage reaches 3.55V. Balancing is performed at up to 20 times the speed of passive balancing while maintaining a much higher efficiency and adding up to 30% to your battery life.

RACKING WITH BATTERIES

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