4S 6S 8S 3A BMS Lifepo4 Lithium Battery Active Balancer Equalizer 3.2V-4.4V Battery Cell Packs Balance Energy Transfer for RV

To ensure safety, lithium battery related operations require corresponding knowledge and operation skills. If you do not have this knowledge and skills, please do not purchase.

 

Suitable battery type: 3.2V-4.4V (lithium iron phosphate/ternary lithium, etc., no manual switching is required)

Maximum balancing current: 3A (when the voltage difference is 1.2V)

Balance voltage accuracy: 0.01V

Suitable ambient temperature: -15 degrees Celsius-75 degrees Celsius

Balance start condition: Always balance when powered on, the greater the voltage difference, the greater the balancing current

Balance method principle: overall capacitor energy transfer balance

Static current loss: about 2-6mA (slightly different from 4S-8S)

Battery low voltage protection: automatically turn off the balance protection when the single cell is lower than 2.5V

Battery external balance switch: can be external (generally not required)

Matching plug wire: VH3.96@20AWG 35CM

Main body appearance size: (4S 50mm*38mm), (6S 50mm*54mm), (8S 50mm*67mm)

 

Notes:

Battery packs within 2Ah-400Ah can be used, but the larger the capacity, the longer the balancing time

 

The balancing board reserves an external switch pad. When an external switch is needed, first cut off the connecting copper foil between the two pads, and then connect an external switch to realize the on-off control of the circuit (because the overall power consumption of the circuit is not much. Generally, an external switch is not required)

 

Series application logic: number of batteries = N+(N-1), that is: 4S+(4S-1)=7 strings; 4S+(6S-1)=9 strings; 8S+(8S-1)=15 strings

 

BO is the total negative forward connection, wrong sequence or reverse connection short circuit will burn, the balancing current size is related to the battery voltage difference, wire internal resistance, and battery internal resistance (the larger the battery voltage difference, the larger the balancing current, the smaller the wire and battery internal resistance, the larger the balancing current, and vice versa)

 

Multiple parallel connections can increase the current, and multiple series connections can increase the number of strings.

 

It is recommended to record the voltage of each battery before use, and record the voltage again after 1-3 days of use for comparison.