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Stafl Systems
Battery Management
Systems

Properly harnessing today’s most sophisticated battery technology.

Today's advanced lithium-ion batteries don't just plug in to existing systems. They require sophisticated management systems that ensure proper charging and discharging for long-term, reliable operation. Stafl Systems has engineered world-class BMS products, intended to be integrated into a battery pack design, to meet these performance demands.


 
 
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UNRIVALED ACCURACY

The Stafl Systems modular BMS1000 Series Battery Management System consists of one BMS Master Module and an application-specific number of BMS Monitor Modules.

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1-64X Monitor BMS Units

  • Measures cell voltages and temperatures

  • Balances cells

  • Communicates with Master BMS via internal data link

1X Master BMS Unit

  • Communicates with outside system via CAN 2.0B

  • Manages pre-charging and contactors

  • Monitors pack voltages

COUNTLESS APPLICATIONS

 

PRECISE ENGINEERING


Features

  • Scalable from 12 to 256 Series Cells

  • Temperature Sensor for Each Cell Group

  • Supports up to 1000V Systems

  • Low Steady State Cell Voltage Measurement Error (<2.0 mV)

  • Individual Cell Group Balancing Resistors

  • Externally Powered for Low Quiescent Battery Current

  • High Current Shunt Monitor Circuit for Accurate Pack Current Sensing

  • Pack Level Voltage Monitoring

  • Integrated Isolation Fault Monitor Circuit


Typical System Diagram

 
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BMS PRODUCT CATALOG

The Stafl Systems modular BMS1000 Series Battery Management System consists of one BMS Master Module and an application-specific number of BMS Monitor Modules.


 

1X

 

1-64X

or

1-64X

BMS1000M (Master Unit)

Integrated precharge and main contactor control circuit

Communication with Vehicle Control Unit (VCU) via standard CAN Bus Interface, with multiple supported baud rates

Standard output messages include cell voltages/temperatures, pack voltage/current, and fault flags

Runs internal balancing or commands received from VCU

May be installed externally in appropriately sealed enclosure

 

+

BMS1101S (Monitor Unit)

Ability to monitor and balance up to 12 series cells

Allows system to be configured for packs with 12-256 series cells

Yields excellent measurement accuracy across common pack conditions

May be installed externally in appropriately sealed enclosure

BMS1102S (Monitor Unit)

Ability to monitor and balance up to 12 series cells

Allows system to be configured for packs with 12-256 series cells

Yields excellent measurement accuracy across common pack conditions

May be installed externally in appropriately sealed enclosure