JK Active Balance BMS JK-B1A8S20P JK-B2A8S20P User Manual

JK-B1A8S20P/JK-B2A8S20P is JK active balance BMS for 4S or 8S LiFePO4 battery pack.

The maximum balancing current of JK-B1A8S20P is 1A and the maximum balancing current of JK-B2A8S20P is 2A.

The maximum discharge current supported by these two BMS is 200A， and maximum pick discharge current is 350A.

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The following are the main electrical performance parameters.

Main technical specifications for JK-B1A8S20P and JK-B2A8S20P

Technical Specification	Model: JK-B1A8S20P/JK-B2A8S20P
li-ion Battery String	3-8
LiFePO4 Battery String	4-8
LTO Battery String	Not support
Balancing Mode	Active Balancing
Max Balancing Current	1A(JK-B1A8S20P)/2A(JK-B2A8S20P)
The Main Circuit Resistance	0.3mΩ
Continuous Discharge Current	200A
Max Discharge Current	350A
Overcurrent Protection(Adjustable)	10-200A
Other Interfaces	RS485/CAN/Heating/LCD display
Port Type	Common Port
Cell Voltage Range	1-5V
Voltage Acquisition Accuracy	±5 mV
Overcharge Protection Voltage	1.2~4.35 V Adjustable
Overcharge Release Voltage	1.2~4.35 V Adjustable
Overcurrent Release Time	2~120S Adjustable
Over-discharge Protection Voltage	1.2~4.35 V Adjustable
Over-discharge Recovery Voltage	1.2~4.35 V Adjustable
Temperature Detection Ports	3
Temperature Protection	Yes
Short Circuit Protection	Yes
Coulometer	Yes
Bluetooth	Support android phone / iPhone
Gps ports	Support