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CKBM-1000（BMU）BATTERY MANAGEMENT SUBORDINATE UNIT
- The CKBM-1000 (BMU) Battery Management Slave Module is a slave control module with integrated passive balancing functionality designed for lithium battery management systems.
►Overview
The CKBM-1000 (BMU) Battery Management Slave Module is a slave control module with integrated passive balancing functionality designed for lithium battery management systems. This module provides real-time monitoring of individual cell voltage and temperature, along with thermal management and passive balancing capabilities. It can form a highly flexible battery management system through CAN communication with the master control unit (BCU). Suitable for energy storage systems or power stations using materials such as lead-acid, lithium iron phosphate, ternary lithium, and lithium titanate as battery media.
►Product features
- Supports voltage monitoring for 64 strings of individual battery cells (single cells)
- Supports 64-channel NTC (10K) temperature monitoring
- Supports passive balancing using energy consumption balancing technology, enabling simultaneous discharge balancing of multiple individual battery cells within the battery pack, with a balancing current of 100mA, and the balancing energy of individual cells can be measured
- Supports low-power consumption mode for data acquisition, with quiescent current in low-power mode reduced to 50μA or lower
- Supports alarm functions for power supply/individual cell voltage (overvoltage, under-voltage), temperature (overtemperature), communication failures, etc.
- Supports balancing fault detection
- Supports detection function for disconnection of the acquisition harness (voltage, temperature)
►Technical parameter
| Parameter | Minimum Value | Typical Value | Maximum Value | Remarks |
| Number of battery cell acquisition channels per string (channels) | 32 | / | 64 | Each connector must be connected to at least 8 cells, and the corresponding battery pack voltage must be greater than 16V |
| Single-cell Battery Acquisition Range (V) | 0 | / | 5 | |
| Single-cell Battery Acquisition Accuracy (mV) | / | ±3 | ±5 | |
| Temperature Acquisition Channel (Channel) | / | / | 64 | |
| Temperature Acquisition Range (°C) | -40 | / | 125 | |
| Temperature Acquisition Accuracy (°C) | / | ±1 | / | +1℃@-25'℃-65°C ±2℃@-40℃~-25%℃ or 65℃~125℃ ±2°C @ -40°C to -25°C or 65°C to 125°C |
| Passive Balancing Current (mA) | / | 100 | / | Internal 33Ω Resistor |
Tag:
ESS, BESS
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