1500Vdc 64-Cell 100mA Passive Balancing BMS Slave Module ESBMM-6412

Engineered specifically for advanced 1500Vdc Energy Storage Systems, the ESBMM-6412 is a highly integrated passive balancing BMS slave module designed to meet rigorous safety and electrical compliance.It delivers expansive monitoring capacity with 64 cell-level voltage channels and 64 individual NTC (10K) temperature sensors for precise 1-to-1 thermal tracking. Engineered with a reliable 100mA passive balancing control, it allows simultaneous controlled discharging of multiple cells while uniquely measuring the dissipated energy of each individual cell. Uniquely equipped with an ultra-low power DAQ mode that reduces potential current to 50uA or lower, along with comprehensive multi-level fault alarms and strict adherence to global functional safety standards (including GB/T34131 and IEC62477), this module ensures superior system safety and extended battery cycle life in demanding commercial and utility-scale environments.

 

Applications  

Utility-Scale 1500Vdc ESS

Optimized for high-voltage grids requiring strict insulation and global safety compliance.

Liquid-Cooled ESS

Suited for advanced thermal architectures needing precise 64-cell temperature tracking.

Commercial & Industrial (C&I) ESS

Ideal for battery racks requiring ultra-low standby power and multi-cell passive balancing.

High-Density Containerized BESS

Tailored for dense containers relying on continuous voltage monitoring and fault protection.

  • Product Details

Core Features  

  • Passive balancing control.
  • Support cell-level voltage monitoring of 36 cells.
  • Support 36 NTC (10K) temperature monitoring points; Support 1 digital signal output and 1 digital signal input detection.
  • Support passive balance and achieve by controlled discharging multiple cells in the one battery rack at the same time. Balancing current is 100mA, and dissipated energy of each cell can be measured.
  • Support active thermal management such as temperature control of cooling or temperature rise to ensure system safety and extend battery life.
  • Support fan speed control, fan state feedback and speed detection.

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: How is the passive balancing uniquely managed on this module?

The ESBMM-6412 implements a 100mA passive balance achieved through controlled, simultaneous discharging of multiple cells within the rack. Crucially, the balanced energy of each individual cell can be precisely measured for better system analytics.

Q: What level of monitoring capacity does this module provide for advanced thermal management?

It delivers exceptional high-density tracking by supporting simultaneous cell-level voltage monitoring for 64 cells, paired directly with 64 dedicated NTC (10K) temperature monitoring points to ensure precise, 1-to-1 battery health oversight.

Q: How does the module minimize energy waste during system standby?

The module features an advanced low-power DAQ mode designed to drastically reduce parasitic energy drain on the battery rack. When in this low-power mode, the potential current is minimized to 50uA or lower, preserving overall system efficiency.

Q: Is this module certified and safe for high-voltage utility-scale deployments?

Yes, it is purpose-built to meet the strict requirements of 1500Vdc Energy Storage Systems. It features comprehensive multi-level alarms (for overvoltage, overtemperature, and communication failures) and complies with global functional safety and electrical insulation standards including GB/T34131, EN/IEC/UL62368, and IEC62477.

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