BMU-H4-24 (24S HV Slave BMS)
24-cell high-voltage slave BMU with ±2mV voltage sensing, bidirectional active balancing (<200mA), 9–36V wide input, CAN cascading with auto-addressing, and IP40 compact enclosure. Engineered for B2B integrators requiring precise SOC/SOH and reliable scaling.
The BMU-H4-24 is a 24S high-voltage slave BMU designed for B2B integrators who require precise cell monitoring and reliable scaling. It provides ±2mV voltage sensing across 24 channels (expandable to 36), bidirectional active balancing at <200mA, and up to 4 NTC temperature channels (expandable to 18). The unit accepts a wide 9–36V input, operates with <1W standby power, and communicates via CAN with auto-addressing for easy cascading. Housed in a compact 176×126×29mm IP40 enclosure, it is ideal for high-density cabinet deployment in commercial and industrial energy storage systems, especially 24S LiFePO4 packs where passive balancing is inadequate. Certified to CE, RoHS, and FCC.
Performance Metrics
±2mV voltage sensing accuracy across 24 channels (0–5V) for precise SOC/SOH estimation
Verified under maximum operational load and extreme environmental conditions.
Bidirectional active balancing with <200mA current, operating during both charging and discharging
Verified under maximum operational load and extreme environmental conditions.
9–36V wide input compatible with 12V and 24V auxiliary systems, with <1W standby power
Verified under maximum operational load and extreme environmental conditions.
Standard CAN bus with auto-addressing for easy cascading of multiple slave units
Verified under maximum operational load and extreme environmental conditions.
Up to 4 NTC temperature channels (±1°C accuracy, -20~65°C), expandable to 18 channels
Verified under maximum operational load and extreme environmental conditions.
Compact 176×126×29mm IP40 enclosure designed for high-density cabinet deployment
Verified under maximum operational load and extreme environmental conditions.
Expandable to 36 voltage sensing channels upon request
Verified under maximum operational load and extreme environmental conditions.
Wide operating temperature range: -40°C to +65°C (storage -50°C to +105°C)
Verified under maximum operational load and extreme environmental conditions.
CE / RoHS / FCC certified for international deployment
Verified under maximum operational load and extreme environmental conditions.
Ideal for 24S LiFePO4 packs where passive balancing is insufficient on flat voltage curves
Verified under maximum operational load and extreme environmental conditions.