The JK Energy Storage Series Smart BMS is designed for
high-capacity lithium battery packs used in residential solar,
commercial energy storage, backup power and other stationary
battery systems.

The series supports lithium iron phosphate, ternary lithium and
lithium titanate batteries, with four current configurations
covering 100A, 150A and 200A continuous charge and discharge requirements.

Integrated active balancing transfers energy from higher-voltage
cells to lower-voltage cells, helping improve cell consistency,
usable battery capacity and long-term battery pack performance.

1A or 2A Energy-Transfer Active Balancing

Transfers energy from higher-voltage cells to lower-voltage
cells instead of simply consuming excess energy as heat.
Balancing current and trigger voltage difference can be adjusted
through the JK BMS APP.

Up to 200A Continuous Charge and Discharge

Select from 100A, 150A and 200A models according to battery
capacity, inverter power and load requirements. The 20P version
supports up to 400A instantaneous current under specified conditions.

Bluetooth APP and PC Monitoring

View battery voltage, current, capacity, temperature, balancing
status and protection information through the JK BMS mobile APP.
Android and iOS systems are supported, together with PC monitoring.

CAN and RS485 Communication

CAN and RS485-1 interfaces support communication with compatible
energy storage inverters. Communication protocols can be selected
through the APP according to the inverter model and system requirements.

Up to 16 BMS Units for Centralized Monitoring

RS485-2 communication and DIP address settings support addresses
from 0 to 15, allowing a PC to monitor data from up to 16 BMS units.

High-Precision Battery Data Collection

High-precision cell voltage acquisition with accuracy up to
±3mV helps the BMS monitor battery pack status and activate
balancing or protection functions accurately.

Heating and Low-Temperature Protection

The standard heating control circuit is designed for approximately
10A heating current and can control a suitable external heater or
heating film for low-temperature battery applications.

Dual Dry Contact Outputs

Two dry contact channels can be configured to control external
equipment such as cooling fans or alarm buzzers when selected
protection conditions are triggered.

Intelligent Sleep and Low Standby Consumption

The BMS can enter intelligent sleep after the charge and discharge
current remains below 1A for 26 consecutive hours. Standby power
consumption is approximately 12mW.

Does this series include a 300A continuous-current model?

No. The maximum continuous-current model listed in the V19.0.1
specification is JK-PB2A16S-20P with 200A continuous current
and 400A maximum instantaneous current.

What is the difference between the 1A and 2A versions?

The PB1A models support up to 1A active balancing, while the
PB2A models support up to 2A active balancing for faster cell
voltage equalization.

Can the BMS communicate with a solar inverter?

Yes. CAN and RS485-1 communication interfaces are provided.
The correct communication protocol must be selected according
to the inverter model and confirmed before installation.

How many BMS units can be monitored together?

Up to 16 BMS units can be assigned addresses from 0 to 15 and
monitored through the RS485-2 communication bus and PC software.

Does the BMS support a display screen?

Yes. The BMS includes dedicated UART and RS485 display interfaces
for compatible optional information displays.

Is the heating film included?

The BMS provides a heating control function and heating terminal.
A correctly rated external heater or heating film must be selected
according to the battery system design.