Example Uses:

1. This balance module can be used in parallel with a BMS to boost the balance efficiency of battery/BMS setup.

2. Secondly, the balance module can be used without a BMS, and will keep the individual battery cells within healthy balance levels.

3. Lastly, this balance module can be used in place of a traditional BMS. In specific setups where a battery is connected stable voltage source such as a 16.8v charger or solar charge controller (16.8v) and the output is controlled by a low voltage cutoff such as a inverter. 

Description:

This standalone balance equalization board is used for a 4S lithium battery pack without a balance feature. This standalone module does not charge or act as a low voltage/over charge cutoff. This board uses a resistor to balance each cell to 4.15v/4.2v. This board can also be added to an existing BMS battery setup to boost the effectiveness of the balancing function by increasing maximum balancing capacity.

Battery compatibility: Voltage of 2.5V - 4.2V lithium battery (18650, 26650, LiPo, Li-ion)

Battery voltage range: 12v - 16.8v

Maximum balance current: 66mA

Board Size: approx. 37.3*25.8*2.4mm

Package includes: 1 x 4S Lithium Battery Balance Board

Wiring Instructions:

B- is connected to the negative terminal of the battery 1(-)

B1 connects between battery 1(+) and battery 2(-)

B2 connects between battery 2(+) and battery 3(-)

B3 connects between battery 3(+) and battery 4(-)

B4 is connected to the positive terminal of battery 4(+)

Shipping Note: 

Single boards may be shipped via USPS First Class Large Letter locally from the Cleveland area, a tracking number may not be available. Orders of two (2) or more will be shipped as a First Class Package including a tracking number.