BMU-H5-16 (16S Active Slave BMS)
High-voltage slave management unit for energy storage systems, supporting 16-cell voltage sensing, 16-channel temperature monitoring, and up to 2A active balancing. Engineered for ESS, battery packs, and industrial backup power.

The BMU-H5-16 is a 16S active slave BMS for high-voltage energy storage systems, providing precise cell voltage monitoring (±1mV), 16-channel temperature sensing, and up to 2A active balancing per channel. It features an isolated isoSPI daisy-chain interface, 1000V insulation rating with 3000Vac withstand, two high-side drivers, and fan feedback monitoring. Designed for LFP, NMC, LMO, LTO, and LCO chemistries, it operates from –25°C to +85°C and integrates easily via standardized M1/M2/M3 connectors. Ideal for residential ESS, C&I storage, grid-scale systems, telecom backup, and second-life battery applications.
Performance Metrics
16-cell voltage sensing with high accuracy (±1mV) for precise SOC and SOH estimation
Verified under maximum operational load and extreme environmental conditions.
16-channel temperature sensing via dedicated NTC inputs for comprehensive thermal management
Verified under maximum operational load and extreme environmental conditions.
Up to 2A active balancing per channel minimizes energy loss and extends cycle life
Verified under maximum operational load and extreme environmental conditions.
isoSPI communication with isolated SPI interface for reliable daisy-chaining and noise immunity
Verified under maximum operational load and extreme environmental conditions.
1000V insulation rating (80–1000V working voltage, 3000Vac withstand) for high-voltage systems
Verified under maximum operational load and extreme environmental conditions.
Wide operating temperature range: –25°C to +85°C (storage –40°C to +125°C)
Verified under maximum operational load and extreme environmental conditions.
2 high-side drivers for fan control, contactor drive, or auxiliary loads
Verified under maximum operational load and extreme environmental conditions.
Fan feedback monitoring for real-time cooling system diagnostics
Verified under maximum operational load and extreme environmental conditions.
Supports LFP, NMC, LMO, LTO, and LCO battery chemistries
Verified under maximum operational load and extreme environmental conditions.
Standardized connector interfaces (M1, M2, M3) and clear documentation simplify integration
Verified under maximum operational load and extreme environmental conditions.