Specifications:

• Single Cell overcharge protect voltage:  4.23 - 4.28V  

• Single Cell overcharge rotect recover voltage:  4.08 - 4.18  

• Overcharge protect delay:  0.5 - 1.5S  

• Single Cell over-discharge protect voltage:   2.72 - 2.88V  

• Single Cell over-discharge rotect recover voltage:   2.9 - 3.1V 

• Overcharge protect current:  60A  

• Over-discharge protect current: 60A 

• Over-discharge protectdelay: 0.5 - 1.5S

• Temperature protect: YES

• Disconnect protect: YES

• Shortage protect: YES

• Shortage delay: 100 - 600μS

• Shortage protect recover: YES

• Charging current:  25A

• Discharging current: 25A

• Charging voltage : 12.6V for 3S BMS board 

•                                 16.8V for 4S BMS board

•                                 21V for 5S BMS board

You can change the Series by adjusting the oΩ resistor(or shortcut by tin) as bellow:

Package Included:

1 x 3S BMS 25A 12.6V 4S 16.8V 5S 21V 18650 Li-ion Lithium Battery Protection Board