When it comes to JK BMS, understanding the key parameters is essential for maximizing its efficiency and performance. Let's delve into the details of these crucial parameters.
What is JK BMS?
JK BMS, or Battery Management System, is an important part of managing the performance and health of lithium-ion batteries. It ensures the safe operation of the battery pack by monitoring various parameters and taking necessary measures to prevent overcharging, over-discharging and overheating.
With active equalization function ● LED status indication
● APP remote operation ● Overvoltage and overcurrent protection
● Support PC operation ● Information screen display
● Information screen display ● Support RS485\CAN\RS232 communication
● High-precision voltage collection ● Battery capacity estimation
● High-precision current collection ● Precise time log recording
● Isolated power circuit ● Short circuit protection
● 4-channel temperature detection protection ● MOS temperature detection protection
Use environmental conditions
Test item parameter unit
Working temperature -30~70 °C
Storage temperature -30~70 °C
Working humidity 10~80%RH
Storage humidity 10~85%RH
Power supply voltage 20~70 V
Working power consumption 19mA@58V
battery balancing
One of the key parameters of JK BMS is cell balance. This process ensures that all cells in the battery pack are charged and discharged evenly, preventing capacity imbalances that can lead to reduced battery life and performance. Its charging current limit is 10A, the maximum balancing current is 2A, and the maximum passing current is 200A. Its equalization trigger pressure difference defaults to 10mv and can also be customized. JK BMS actively monitors and balances the battery to maintain optimal performance.
State of Charge (SOC)
SOC is another important parameter managed by JK BMS. It indicates the current charge level in the battery pack as a percentage of its total capacity. By accurately tracking SOC, JK BMS helps prevent overcharging or overdischarging, which can damage the battery and shorten its lifespan.
Communication instructions
1. RS232 communication
Bms can communicate with the host computer through the RS232 interface, so that various battery information can be monitored through the host computer, including battery voltage, current, temperature, status and battery production information, etc. The default baud rate is 9600bps.
2. CAN communication
The default communication rate of CAN communication is 250k.
3. RS485 communication
There are two RS485 communication interfaces, one of which outputs two interfaces in parallel for viewing battery pack information. The default baud rate is 115200. By setting the DIP switch to set the communication address, the data of all battery packs can be polled and queried. The address setting range is 0~15.
State of Health (SOH)
SOH is a key parameter that reflects the overall health and performance of the battery pack. The JK BMS continuously monitors various factors such as cycle count, temperature and voltage to assess SOH. By maintaining optimal operating conditions, JK BMS helps extend battery life and ensure reliable performance.
Temperature Protection
Charging over-temperature protection: 70°C can be set
Charging over-temperature recovery: 60°C can be set
Discharge over-temperature protection: 70°C can be set
Discharge over-temperature recovery: 60°C can be set
Charging low temperature protection: -20°C can be set
Charging low temperature recovery: -10°C adjustable
MOS over-temperature protection: 100°C adjustable
MOS over-temperature recovery: 80°C configurable
Battery alarm temperature: 60°C can be set
Battery alarm recovery: 50°C can be set
JK BMS also plays a vital role in temperature management. It monitors the temperature of the battery pack and takes corrective action to prevent overheating, which can compromise battery safety and service life. By maintaining an optimal temperature range, JK BMS ensures safe and efficient operation.
Understanding these parameters of JK BMS is critical to maximizing the performance, life, and safety of lithium-ion batteries. By effectively managing cell balance, SOC, SOH and temperature, JK BMS plays a key role in ensuring reliable operation of battery packs in a variety of applications.
Wiring diagram
There are strict sequence requirements for powering on the protection board. First weld B-, P-, B+, P+, and then plug in the battery sampling line connections from low to high.
The device needs to be activated by pressing a button after powering on. Load or charger can only be added after all connecting cables are installed. When dismantling, unplug the charger or load first, and then
Remove the battery sampling line connector in order from high to low, and finally remove B+, P+, B-, P-.
Specification size chart
