Battery fuel gauges

Accurate gauging products for any battery system

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We offer highly accurate gauges for applications ranging from smartphones, notebooks and power tools to vacuums and energy storage systems (ESS). There are gauges equipped with integrated protection or for higher voltage applications up to 15 cells in series. Our patented gauging algorithms help gauges accurately measure state of charge and state of health for a variety of chemistries including li-ion, LiFePO4 and NiMH.

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Technical resources

White paper
White paper
Impedance Track Based Fuel Gauging
What makes our gauges so special? Patented gauging Impedance Track™ technology allows for higher accuracy. If you are interested in learning more about this technology, download this white paper.
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Application note
Application note
Gauge Communication
Battery gauges have a rich set of parameters that enable compatibility with a wide range of battery types and applications. Learn how to program these parameters and read gauge results.
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Battery Protector, Monitor or Gauge?
This short overview provides a short summary of system requirements to help you choose a battery protector, monitor or gauge.

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 (...)

Calculation tool
Gauging Parameter Calculator
Gauging Parameter Calculator (GPC) is a math calculation and simulation tool that helps the battery designer to obtain matching Compensated End of Discharge Voltage (CEDV) coefficients for the specific battery profile. The tool allows the user to increase the accuracy of the fuel gauge IC over (...)
Support software
MathCAD compensated end of discharge voltage (CEDV) tool

Math calculation and simulation tool that helps the battery designer to obtain matching CEDV coefficients for the specific chemistry in the battery pack using one of TI’s CEDV algorithm based fuel gauge. It accepts 3 pairs of log files that can be created by using TI’s bq Smart Battery (...)

Reference designs related to Battery fuel gauges

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