1. Technical specifications
Last modified by Admin on 2026/09/21 13:29
Technical specifications
BMS Mini S is a miniature full-featured centralized BMS for high-capacity lithium-ion batteries. It has many communication interfaces, an ability to collect information during the entire battery lifetime and an integrated DC/DC converter.
Specifications
| Parameter | Value |
| Battery voltage, V | 11* to 52 |
Current consumption @36 V, mA (maximum): work (no load) |
30 |
| Number of cells | 4 to 12 |
| Cell balancing type | Passive |
| Cell balancing current, mA, @ 4.2 V | 350 |
| Cell voltage measurement range, V | 0 to 5 |
| Cell voltage measurement error, V | ± 0.003 |
| Cell temperature measurement error, °С | ± 2 |
| Output voltage of the internal DC/DC converter, V | 12 ± 1 |
| Output current of the internal DC/DC converter, A (maximum) | 3 |
| Number of programmable MOSFETs for contactors (40V, 5A) | 4 |
| Number of programmable discrete inputs (dry contact) | 4 |
| Number of programmable discrete outputs (5V, total 200mA) | 4 |
| Current sensor type | Hall-Effect sensor, bidirectional (LEM series: HASS, HTFS, DHAB) |
| Interfaces | 1xCAN / 1xRS-485 / 1xUSB |
| CAN output voltage, V | 5.0 ± 0.5 |
| CAN output current, mA (maximum) | 400 |
| Dimensions (length × width × height), mm | 125 × 117 × 17 |
| Weight, g | 210 ± 20 |
| Operating temperature range, °С | -40 to +85 |
| Headers X1, X3-X9 type | Molex series Micro-Fit |
* The minimum voltage for the internal 12V DC/DC converter is 14 Volts.
Overall and mounting dimensions
Typical battery system
Typical battery system based on the BMS Mini is shown on figure below.
