Specification of BMS for ESS

Working environment

Temperature

Operating temperature：-20～+65°C

Storage temperature：-40～+125°C

Working power

Voltage/Power consumption

Rated voltage：9～32Vdc（reverse connection protection）

Rated power consumption: 120mW (without load)

Communication

CAN

Support 1-channel non-isolated CAN

Communication rate: 250kbs

Collection

Cell voltage collection

Collection range: 0～5V

Collection resolution: 1mV

Collection accuracy:

+10≤t≤+45 °C, the accuracy ≤5mV;

-40~≤t≤125°C, the accuracy ≤8mV

Collection rate：100ms

Electrical isolation:

4149Vdc/2934Vac (8mm)

Cell temperature collection

Collection range:  -40～+125°C

Collection resolution：

0.1°C

Collection accuracy:

-20≤t≤+65°C, the accuracy≤1°C;

-40≤t≤+125°C, the accuracy≤2°C

Collection rate：200ms

Cell equalization

Cell equalization control

Support 24-channel cell passive equalization

Equalization resistance: 33Ω

Equalization temperature rise：≤45°C