5 pcs 4S 3.7V/3.2V Protection Board Same Port 30A with Balanced 18650 BMS Packs PCB Protection Board 10MOS

Color classification

3 · 7V lithium battery (green wire), 3 · 2V lithium iron phosphate battery (blue wire)

Note 1: In strict accordance with the diagram wiring 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B +), do not intentionally short circuit!

Note 2: After the line is connected, it needs to be charged before it will have output.

Note 3: When connecting 4 groups of batteries in series, please ensure that the voltage of each group of batteries is the same. If they are different, please fill each group of batteries separately and use them in series.

 

During the discharge test, the battery with the fastest voltage drop is the poor battery.

 

Explain: Do not mix good and poor batteries! The closer the capacity/internal resistance of the 4 batteries is, the better!

 

(The effect of using 2 good batteries + 4 poor batteries = the effect of using 4 poor batteries).

 

Note: For discharge products above 3A, the battery discharge rate should be more than 3C.

 

Magnification calculation formula: 1C rate battery, 2000 capacity is equal to 2AH*1=2A working current.

 

3C rate battery, 2000 capacity is equal to 2AH*3=6A working current.

 

In the use of the battery will be hot, the battery rate is not applicable, this situation can not be used for a long time, the battery will be damaged quickly.

 

Description of 3.7Vlithium batteryprotection board:

Specifications

Continuous discharge current: 30A

Instantaneous discharge current: 56A

Charging voltage: Lithium battery charger 16.8V, switching power supply 17-18V

Charging current: 2 0 ( max )A

Overcharge detection voltage: 4.28±0.05V

Overcharge protection delay: 0.5S

Overcharge release voltage: 4.08±0.05V

Power balance detection voltage: 4.2 ± 0.05V

Power balance release voltage: 4.2 ± 0.05V

Battery equalization current: 45mA

Over-discharge detection voltage: 2.5±0.08V

Over-discharge detection delay: 0.1S

Over discharge release voltage: 2.9 ± 0.1V

Overcurrent detection voltage: 150mV

Overcurrent detection delay: 40mS

Over current protection current: 56±10A

Overcurrent protection release condition: disconnect load

Short circuit protection condition: short circuit of external load, short circuit is prohibited

Short circuit detection delay: 150us

Short circuit protection release condition: disconnect load

Main circuit conduction internal resistance: ≤20M

Working current: ≤30uA

Sleep current (current over discharge): ≤20uA

Temperature range: minus 20 to zero above 80C

Board size: 56*48*4

 

Description of 3.2V lithium iron phosphate battery protection board:

Continuous discharge current: 30A

Instantaneous discharge current: 56A

Charging voltage: iron lithium charger 14.8V, switching power supply 15-16V

Charging current: 2 0 ( max )A

Overcharge detection voltage: 3.75±0.05V

Overcharge protection delay: 1300MS

Overcharge release voltage: 3.6 ± 0.05V

Power balance detection voltage: 3.6 ± 0.05V

Power balance release voltage: 3.59±0.05V

Power balance current: 58mA

Over-discharge detection voltage: 2.1±0.08V

a 4-string 3.7V/3.2V protection board

Package include: 5 Pcs 4-string 3.7V/3.2V protection board