BMS2101

$400.00

Cell Monitor — High Voltage

Monitors and balances up to 16 series cells
High-current passive balancing, up to 1 A per cell
Redundant cell voltage measurement, ±2.25 mV lifetime accuracy
4 temperature inputs, or 2 redundant pairs
Wide 11 V to 80 V module supply
Bottom-side heatsinking to the pack for full balancing current

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Cell Monitor — High Voltage

Monitors and balances up to 16 series cells
High-current passive balancing, up to 1 A per cell
Redundant cell voltage measurement, ±2.25 mV lifetime accuracy
4 temperature inputs, or 2 redundant pairs
Wide 11 V to 80 V module supply
Bottom-side heatsinking to the pack for full balancing current

Summary

The BMS2101 Cell Monitor mounts on your battery modules and works with a BMS2000 String Controller to measure and balance every cell. Each board covers up to 16 cells in series, with redundant measurements and ±2.25 mV accuracy.

Its high-current balancing, up to 1 A per cell, brings large-format cells into balance quickly, making it the right fit for big packs and demanding duty cycles.

DOWNLOADS: BMS Product Family Brochure (PDF)

FEATURES

Standard BMS21xx Cell Harness Pinout
2x isoSPI Ports for Ring or Daisy Chain
1000 V Transformer Isolation
Powered from Module, 11 V - 80 V
On-Board EEPROM & Balancing Resistor Temperature Sensors
Conformally Coated

16 Cell Battery Monitor with Passive Balancing
Redundant Cell Voltage ADCs
±2.25 mV Lifetime Cell Voltage Measurement Error
High-Current Passive Balancing, up to 1 A per Cell, with PWM Control
Bottom-Side Balancing Resistors for Heatsinking to the Pack
4 NTC Thermistor Inputs, Configurable as 2 Redundant Pairs
Cell Inputs Configurable for Busbar Voltage Drop Sensing

Specifications

  
    Parameter
    Conditions
    Min
    Typical
    Max
    Units
  
    Module Supply Voltage
    
    11	
     
    80
    V
  
    Cell Input Voltage
    Differential
    -2
    
    5.5
    V
  
    Cell Voltage Measurement Error
    Lifetime, VCELL ≤ 3.3 V
     
    ±2.25	
    mV
  
    Cell Voltage Resolution
    
    	0.15	
     
    	mV
  
    Balancing Current
    Heat-sunk
     
    	1
    A
  
    NTC Temperature Range
     
    -40
    
    125
    °C
  
    Cell Voltage Sampling Rate
    All cells, 8-sample average, 
redundant ADC; while operating
     
    20
     
    Hz
  
    Temperature Sampling Rate
    All NTC inputs; while operating
     
    10
     
    Hz
  
    Isolation
    Working voltage, IEC 60664-1
     
    1000
    VDC
  
    Operating Temperature
     
    -40	
     
    105
    °C
  
    Dimensions
     
    	160 x 60
    160 x 60
    mm