BMS Logic 12S
Measuring module
Modular BMS for 24-2000V batteries
BMS Logic 12S represents the third generation of measuring modules that takes the best from BMS Logic 12 and offers advanced balancing algorithms and smaller size.
It determines voltage and temperature of the battery cells and does passive balancing of the cells on a command from the BMS controller.

- 4-12 cells
(accuracy ±3mV) - 12 temperature sensors
- Passive balancing (up to 460 mA @4.2V)
- RS-485 (3500V RMS isolation)
Links
Compatible controllers: BMS Main 2.1, BMS Main 3
Compatible auxiliary modules: BMS Repeater
Parameter | Value |
---|---|
Supply voltage, V | 5.0 ± 0.5 |
Current consumption @5 V, mA (no data exchange with the BMS controller; max) | 4 |
Number of cells | 4 ÷ 12 |
Cells stack voltage, V | 10 ÷ 80 |
Power consumption @Cells stack, mW (max) | 175 |
Balancing current @4.2 volts on a cell, mA (max) | 460 |
Cell voltage measurement error, V | 0.003 |
Cell temperature measurement error, °С | 2 |
Dimensions (length × width × height), mm | 117 × 62 × 11 |
Weight, g | 130 ± 5 |
Operating temperature range, °С | -40 ÷ +85 |
The degree of protection from external influences | IP00 |