BMS System

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The functions of our BMS system include voltage and temperature monitoring of individual cells, pack current measurement, state of charge (SOC) calculation, alarm interlocks to prevent over-charging and over-discharging, over-temp and over-current, cell balancing, ground fault detection, video output, CANBUS and MODBUS communication, etc.  The new generation BMS system adds wifi connectivity, smartphone app feature, as well as remote data access through Cloud.  

For OEM inquiries, please contact us. For retail purchases, please contact our distributor. 

BMS System includes the following parts:

1. Central Processing Unit (CPU)

The central processing unit (CPU) of the BMS system interfaces with sense boards (daisy chain) to obtain voltage and temperature data from each individual cell, and it interfaces with shunt sensor to read pack current.  Read more...

2. Sense Board Strings  

A sense board string is a string of four sense boards connected in a daisy chain.  Read More...

3. Current Sensor

Shunt sensors are used to measure pack current. Read More...

4. Cable

A cable is needed to connect the CPU and the first sense board string in the daisy chain. Read More...

5. Communication

A CANBUS or MODBUS communication board can be added to the 1st generation CPU (EMS-CPU) to add CANBUS or MODBUS data communication feature. Read More...

6. DC/DC

The DC4812 unit provides a 12VDC source from a 12 or 16-cell (36V - 48V) Li-ion battery                      pack.  Read More...

7. LCD Screen

An optional 7” LCD screen can be used for display and diagnostics purpose. Read More...