Description:

 The lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated chip, the performance is better than the protective board composed of discrete chips.

•  Can complete 4 string polymer lithium battery, ternary lithium battery, lithium ,battery charge and discharge protection, over current, short circuit, over temperature protection and equalization function.
•  It adopts 4 milliohm ultra-low internal resistance MOS tube, which has low internal resistance and high efficiency.
•  It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights.
•  The protection board has a heat sink and a supply line.

Features:

•  Single cell Overcharge Protection Voltage: Polymer 4.25V ± 0.025V 
•  Single cell Overcharge Relieved Voltage: Polymer 4.15V ± 0.05V
•  Overcharge Protection Delay: 1S ± 200mS
•  Single cell Over-discharge Protection Voltage: Polymer 2.7V ± 0.05V 
•  Single cell Over-discharge Relieved Voltage: Polymer 3.0V ± 0.1V 
•  Over-discharge Protection Delay: 1S ± 200mS
• Discharge Overcurrent Protection: 70A
•  Discharge Overcurrent Protection Delay: 100mS ± 50mS
•  Short circuit Protection: Yes
•  Short circuit Protection Delay: 250uS ± 50uS
• Short circuit Protection Recovery Mode: Disconnect the load recovery output voltage
•  Discharge Current: 50A (When more than 20A , please add tin on the back of the PCB 

Kit include:

1x3S BMS 3.7