Battery monitors & balancers

Accurate battery cell monitoring and integrated protection

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Accurate monitoring enables more efficient battery use, resulting in longer run time and a reduction in battery size and cost. Our monitors and balancers provide accurate, real-time readings of battery cell voltage, temperature and current in a variety of battery management systems. Our broad portfolio of products is designed to enable the highest levels of innovation in vehicle electrification, e-mobility and home appliances.

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BQ78706
Battery monitors & balancers

Industrial 14-s stackable battery monitor, balancer and integrated protector compliant to ASIL-B

Approx. price (USD) 1ku | 4.2

BQ79758-Q1
Battery monitors & balancers

Automotive 18S battery monitor and balancer with ASIL-D compliance and current sense

Approx. price (USD) 1ku | 7.69

BQ79735-Q1
Battery monitors & balancers

Automotive high-voltage battery pack monitor with voltage and insulation-resistance sensing

Approx. price (USD) 1ku | 5.99

BQ79731-Q1
Battery monitors & balancers

Automotive high-voltage battery pack monitor with voltage, current and insulation resistance sensing

Approx. price (USD) 1ku | 5.99

BQ76905
Battery monitors & balancers

Low-power monitor and protector for 2S to 5S with high accuracy cell voltage measurement

Approx. price (USD) 1ku | 0.62

BQ76972
Battery monitors & balancers

3s-to-16s high-accuracy battery monitor and protector for Li-ion, Li-poly and LiFePO4

Approx. price (USD) 1ku | 2.175

Power trends

Battery monitors & balancers for low noise & precision

Enable time-synchronized measurements across each battery-cell with high-accuracy voltage monitoring and fault detection. For battery management systems in HEV/EV, our automotive battery monitors and balancers integrate noise filtering to eliminate the need for external components.  For industrial systems, our monitors with integrated protection give full control over voltage, current and temperature for optimal system performance.

Video series
BQ76952 and BQ76942 battery monitors
This training series helps you ensure the safety and protection of your system using BQ76952 and BQ76942 battery monitors. 
Technical article
Improving voltage measurement accuracy in battery monitoring systems
This article focuses on voltage monitoring of lithium-based batteries to ensure the safe operation of battery-powered systems such as vacuum cleaners, power tools and e-bikes.
PDF | HTML
Featured products for low noise & precision
BQ76952 ACTIVE 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
BQ76942 ACTIVE 3-series to 10-series multicell battery monitor and protector
BQ76940 ACTIVE 9 to 15-series cell li-ion and li-phosphate battery monitor (bq76940 family)

Technical resources

Video
Video
Wired vs. wireless communications in EV BMS
Learn about design considerations for wired and wireless battery management systems in electric vehicles (EVs).
Video
Video
Design considerations for high-cell-count battery packs in industrial applications
Watch this video to understand the pros and cons of basic system configurations, including gauges, monitors and primary or secondary protectors while offering examples for different battery types.
White paper
White paper
Powering Alternative Forms of Transportation with Industrial Battery Packs
Read how a worldwide trend toward environmentally friendly transportation is driving demand for longer-lasting battery packs.
document-pdfAcrobat PDF

Discover featured applications

Battery backup unit (BBU)
Accurately monitor your high cell count battery management system with our battery monitors and balancers
Battery pack: cordless power tool
Improve the battery voltage, current and temperature measurement accuracy in your battery monitoring system
Battery pack: vacuum cleaner/robot
Meet your battery safety and accuracy requirements with our battery monitors and balancers

Accurately monitor your high cell count battery management system with our battery monitors and balancers

Benefits

  • Multi-chemistry battery monitor with cell balancing capability for 3-series to 16-series cells in a small solution size
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Flexible communication options including 400-kHz I2C, SPI and HDQ one-wire interface
  • Integrated one-time programmable (OTP) memory programmable on the production line
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery

Featured resources

REFERENCE DESIGNS
  • TIDA-010208 – 10s-16s battery pack reference design with accurate cell measurement and high-side MOSFET control
PRODUCTS
  • BQ76952 – 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
HARDWARE DEVELOPMENT
  • BQ76952EVM – 3-s to 16-s Li-ion, Li-polymer, and LiFePO4 battery monitor and protector evaluation module
SOFTWARE DEVELOPMENT
  • BQSTUDIO – Battery Management Studio (bqStudio) Software

Improve the battery voltage, current and temperature measurement accuracy in your battery monitoring system

Benefits

  • Multi-chemistry battery monitor with cell balancing capability for 3-series to 10-series cells in a small solution size
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Flexible communication options including 400-kHz I2C, SPI and HDQ one-wire interface
  • Integrated one-time programmable (OTP) memory programmable on the production line
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery

Featured resources

PRODUCTS
  • BQ76942 – 3-series to 10-series multicell battery monitor and protector
HARDWARE DEVELOPMENT
  • BQ76942EVM – 3-series to 10-series Li-ion, Li-polymer and LiFePO4 battery monitor and protector EVM
SOFTWARE DEVELOPMENT
  • BQSTUDIO – Battery Management Studio (bqStudio) Software

Meet your battery safety and accuracy requirements with our battery monitors and balancers

Benefits

  • Multi-chemistry battery monitor with cell balancing capability for 3-series to 10-series cells in a small solution size
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Flexible communication options including 400-kHz I2C, SPI and HDQ one-wire interface
  • Integrated one-time programmable (OTP) memory programmable on the production line
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery

Featured resources

PRODUCTS
  • BQ76942 – 3-series to 10-series multicell battery monitor and protector
HARDWARE DEVELOPMENT
  • BQ76942EVM – 3-series to 10-series Li-ion, Li-polymer and LiFePO4 battery monitor and protector EVM
TECHNICAL RESOURCES
SOFTWARE DEVELOPMENT
  • BQSTUDIO – Battery Management Studio (bqStudio) Software

Design & development resources

Application software & framework
Battery Management Studio (bqStudio) Software

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

Reference design
10s-16s battery pack reference design with accurate cell measurement and high-side MOSFET control
This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 10s–16s Lithium-ion (Li-ion), LiFePO4 battery pack design. It monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion, LiFePO4 (...)

Reference designs related to Battery monitors & balancers

Use our reference design selection tool to find designs that best match your application and parameters.