1500Vdc 26-Cell 2A Active Balancing BMS Slave Module ESBMM-2622

The ESBMM-2622 is a high-density active balancing BMS slave module designed to deliver unparalleled precision in 1500Vdc energy storage systems. Setting a new industry benchmark, it provides 1-to-1 cell monitoring with 26 cell-level voltage channels and 26 independent NTC (10K) temperature monitoring points. Powered by a proprietary Gold chip-level bi-directional active balance technology, it delivers a robust 2A balancing current, allowing for simultaneous charging or discharging of any single cell. Enhanced with advanced active cold and heat management based on real-time battery temperatures, this module maximizes rack consistency, prevents thermal runaway, and dramatically extends the cycle life of high-capacity battery packs.

 

Applications  

High-Density ESS

Ideal for maximizing capacity in tightly packed 1500Vdc utility containers.

Extreme Environment Storage

Active cold/heat management ensures stability in harsh climates.

Heavy-Duty C&I

Delivers Gold chip-level 2A balancing for intense industrial cycling.

Advanced Microgrids

Provides 1-to-1 precise voltage and thermal data for smart grid integration.

  • Product Details

Core Features  

  • Bi-directional active balancing control, balancing current 2A, any-cell-to-any-cell in rack.
  • Support cell-level voltage monitoring of 26 cells.
  • Support 26 channels of NTC (10K) temperature monitoring.
  • Support 26 channels of active balance, with Gold chip-level bidirectional active balance.
  • Support charging or discharging of any single cell in the battery rack at the same time, which can effectively improve the consistency of the battery and prolong the cycle life of the battery system.
  • Support thermal management based on battery temperature, active cold and heat management of the battery pack, and achieve temperature control of cooling or temperature rise to ensure system safety and extend battery life.

Technical Specifications - ESBMM Series  

Type Model Supply Voltage Voltage Series Voltage Range Temp Sensors Temp Range Balancing Current Communication
Level 1 Slave
Passive Balancing
ESBMM-1212-F HV6.0.0 DC24V 12 0-5V 14 -40~125°C 100mA CAN
ESBMM-2412-F HV7.0.1 24 24
ESBMM-3612-F HV7.0.1 36 36
ESBMM-4812-F HV7.0.1 48 48
ESBMM-6012-F HV7.0.1 60 60
ESBMM-1612-F HV7.0.7 / 16 16 Daisy Chain
ESBMM-3212-F HV7.0.7 32 32
ESBMM-4812-F HV7.0.7 48 48
ESBMM-6412-F HV7.0.7 64 64
ESBMM-6412-F HV7.1.0 DC24V 64 64 CAN
ESBMM-B212-F HV7.1.0 112 112
Level 1 Slave
Active Balancing
ESBMM-1222-F HV4.0.6 DC24V 12 0-5V 14 -40~125°C 2A CAN
ESBMM-1622-F HV4.0.6 16 16
ESBMM-2422-F HV4.0.6 24 24
ESBMM-2622-F HV4.0.0 26 26
ESBMM-5222-F HV4.0.0 52 56
ESBMM-A422-F HV5.0.0 104 104

Frequently Asked Questions (FAQ)

Q: Why does the ESBMM-2622 feature 26 NTC temperature channels?

This provides a precise 1-to-1 thermal mapping ratio. Because the module monitors 26 cells, equipping it with 26 individual NTC (10K) sensors ensures that every single cell's temperature is tracked independently, leaving zero blind spots for thermal runaway.

Q: What is the advantage of the Gold chip-level bidirectional active balance?

This proprietary chip-level technology enables 26 channels of active balance with a powerful 2A current. It supports the simultaneous charging or discharging of any single cell in the rack, drastically improving battery consistency faster than traditional logic circuits.

Q: How does the advanced thermal management system operate?

It utilizes active cold and heat management based on real-time battery temperatures. The BMS can automatically trigger targeted temperature control for cooling or temperature rise, ensuring the battery pack remains within optimal safety thresholds.

Q: Does this module prolong the battery system's cycle life?

Yes. By combining 1-to-1 thermal management with powerful 2A any-cell-to-any-cell active balancing, the ESBMM-2622 eliminates micro-imbalances and heat stress, directly extending the overall cycle life of the energy storage system.

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