Measuring modules include BMS Logic 2.0, BMS Logic 12 and BMS Logic 18 boards.
BMS Logic modules measure voltage and temperature of the battery cells, and also perform a cell balancing upon a command from the BMS Main controller.
The first generation of the system
BMS Logic 2.0
Features:
- Cell monitoring:
- measuring cell voltage (4-12 cells)
- measuring cell temperature (2 sensors)
- Cell balancing (passive balancing with current 350 mA)
| Parameter | Value |
| Supply voltage, V | 5.0±0.5 |
| Current consumption @5 V, mA (max) | 40 |
| Balancing current, mA (max) | 350 |
| Cell voltage measurement error, V | 0.003 |
| Cell temperature measurement error, °С | 2 |
| RS-485 baud rate, bps | 115200 |
| Cell count | 4÷12 |
| Dimensions (length × width × height), mm | 100 × 82 × 23 |
| Weight, g | 100±5 |
| Operating conditions | |
| Operating temperature range, °С | -40÷75 |
| The degree of protection from external influences | IP00 |
The second generation of the system
BMS Logic 12
Features:
- Cell monitoring:
- measuring cell voltage (4-12 cells)
- measuring cell temperature (temperature sensors for each cell)
- Cell balancing (passive balancing with current up to 1000 mA*)
- Low power mode
* Value of balancing current upon request.
| Parameter | Value |
| Supply voltage, V | 5.0±0.5 |
| Current consumption @5 V, mA (typical) | 4 |
| Power consumption @Cell stack, mW (max) | 175 |
| Balancing current, mA (max) | 1000 |
| Cell voltage measurement error, V | 0.003 |
| Cell temperature measurement error, °С | 2 |
| Cell stack voltage, V | 10÷80 |
| Cell count in stack | 4÷12 |
| Dimensions (length × width × height), mm | 136 × 107 × 12 |
| Weight, g | 64±5 |
| Operating conditions | |
| Operating temperature range, °С | -40÷75 |
| The degree of protection from external influences | IP00 |
The second generation of the system
BMS Logic 18
Features:
- Cell monitoring:
- measuring cell voltage (4-18 cells)
- measuring cell temperature (temperature sensors for each cell)
- Cell balancing (passive balancing with current up to 500 mA*)
- Low power mode
| Parameter | Value |
| Supply voltage, V | 5.0±0.5 |
| Current consumption @5 V, mA (typical) | 4 |
| Power consumption @Cell stack, mW (max) | 175 |
| Balancing current, mA (max) | 500 |
| Cell voltage measurement error, V | 0.004 |
| Cell temperature measurement error, °С | 2 |
| Cell stack voltage, V | 10÷80 |
| Cell count in stack | 4÷18 |
| Dimensions (length × width × height), mm | 212 × 121 × 12 |
| Weight, g | 106±5 |
| Operating conditions | |
| Operating temperature range, °С | -40÷75 |
| The degree of protection from external influences | IP00 |