Stafl Systems
Battery Management Systems

Product Catalog

Off-the-shelf battery management, configured to your pack.


Lithium-ion batteries require sophisticated management systems to control proper charging and discharging. Stafl Systems' BMS products cover high voltage packs up to 1000 V and low voltage packs from 10 V to 60 V. Every product is configurable to your cells, and can be customized to fit your pack and application.

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.

1X Master BMS Unit

  • Communicates with outside system via CAN 2.0B

  • Manages pre-charging and contactors

  • Monitors pack voltages

1-64X Monitor BMS Units

  • Measures cell voltages and temperatures

  • Balances cells

  • Communicates with Master BMS via internal data link

BMS PRODUCT CATALOG

 

Stafl Systems Battery Management Systems require one BMS Master Module (e.g. BMS1000M) and 1 to 64 BMS Monitor Modules (e.g. BMS1101S / BMS1102S) to function.

Battery Management Systems
BMS2000
BMS2000
$750.00 
String Controller — High Voltage

  • Full-featured string controller for packs up to 1000 V and 600 series cells

  • 6 safety rated contactor drives and pyroswitch output with safety rated redundant switching

  • Redundant pack voltage, current and isolation measurement

  • 68 I/O, plus 3x CAN-FD, RS-485 and optional Ethernet

  • Designed to ISO 13849 PL d

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BMS2101
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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BMS2104
BMS2104
$400.00 
Cell Monitor — High Voltage

  • Compact cell monitor for up to 16 series cells, with up to 0.2 A balancing

  • Redundant cell voltage measurement, ±2.25 mV lifetime accuracy

  • 4 temperature inputs, or 2 redundant pairs

  • Enhanced transient protection and a compact 100 × 67.5 mm footprint

  • Variants for 11 V to 36 V and 18.3 V to 70 V modules, plus busbar bypass

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BMS2300
BMS2300
$750.00 
All-in-One — Low Voltage

  • Monitors and balances 3 to 16 series cells, 10 V to 60 V

  • 300 A continuous solid-state switching with secondary disconnect

  • Redundant cell voltage and temperature measurement

  • Parallel packs with automatic addressing

  • CAN or RS-485, plus fan, heater and expansion I/O

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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

  • SEE ALSO: BMS Product Family Brochure (PDF)

Typical System Diagram

COUNTLESS APPLICATIONS

 

hIGH VOLTAGE

While a vehicle’s power system sees a battery pack as a single, high-voltage battery — charging and discharging the entire battery pack at once — the battery control system must consider each battery’s condition independently.

LOW VOLTAGE

A proper system will continuously monitor important battery parameters for low voltage applications, while dealing with the varying power demands of the many aspects of operation and optimizing the usage of the battery.

stationary storage 

The service life of a battery pack is tied to the weakest battery in the system. In the balancing process, each of the batteries within the string is maintained at optimal voltage levels, eliminating the ill-effects of improper charging.