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As portable and wearable devices proliferate, the need for safe, secure, and effective battery management solutions is becoming increasingly important. Our broad portfolio of battery management solutions includes battery chargers, fuel gauges, identifiers, and authenticators and also battery monitors, protectors, and selectors. These solutions reduce cost, save space, and help to significantly extend the battery life of portable products while making them safer..

Battery Chargers

Maxim battery chargers have high efficiency, low heat and high integration in a small size which are ideal for portable devices. Get the latest battery charger specs here.

Battery Fuel Gauge - Gas Gauge

Accurate battery gauges are required for the best user experience and provide critical information about state-of-charge. Maxim's battery fuel gauges and gas gauges have been successfully used in over...

Battery Monitors, Protectors, & Selectors

Battery monitors provide battery safety. Battery protectors will limit damage to batteries. Learn more about how these can help!

Battery Authentication & Identification

Battery identification & battery authentication IC systems ensure product safety by enabling power only when a certified battery is detected.

USB-C Solutions

Maxim Integrated’s extensive portfolio of ICs for USB-C and USB-C power delivery designs includes chargers, converters, controllers, as well as power path and protection devices.

Also see: 
USB products

Featured Videos


How to Perform Cell Balancing and Set Fault Conditions Using the MAXREFDES1277, Part 2
4:55 August 02, 2021


Better Battery Safety and User Experience with Accurate Fuel Gauges
32:15 April 02, 2021


How to Measure Voltage, Current and Temperature of a Battery Pack Using the MAXREFDES1277, Part 1
4:59 July 20, 2021


Introduction to the MAX17301 and MAX17311: 1-Cell ModelGauge m5 EZ Fuel Gauge with 2-Level Protector and SHA-256 Authentication
10:50 August 21, 2019


Getting Started with the Basics of Maxim’s ModelGauge m5 Technology
11:05 November 30, 2020


Fast Charging with USB Power Delivery
10:13 March 15, 2021

Featured Tech Docs

White Papers

Technical Documents Accurate Technology for Easy, Secure Fuel Gauging You Can Trust

Technical Documents How Secure Fuel Gauges Can Prevent Battery Counterfeiting

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Customer Testimonials

Design Solution Zivix LLC

Design Solution Equine SmartBits

Featured Blogs

Idea to IoT Product in Just Days? Talk to zGlue

Accurate, Wrist-Based Heart-Rate Monitoring—Six Months Faster

Your Guide to the Advantages of Pack-Side Fuel Gauging

Latest Blogs

Keep the Lights On When Someone is Home

August 14, 2021

This blog discusses power outages and Maxim’s new solution for power backup in battery and line powered systems

Smart Wake-up for Security and Home Monitoring Cameras

May 19, 2021

A combination of the ultra- low power Artificial Intelligence (AI) processor and pattern recognition models greatly enhances smart wake up by detecting one or more people in the field of view with minimum power.

Assistant Excellence Conference - It Takes Two

March 11, 2021

The annual Assistant Excellence Conference (AEC) provides professional development for Maxim global assistants and is produced by the Maxim assistant community.

Two Tools to Ease Inductor Selection

March 05, 2021

Learn about two tools to help with power design and inductor selection: Maxim's EE-Sim Design Tool and Würth's REDEXPERT.

Slash Power Dissipation with Maxim’s Industrial Protected Low-Side Digital Output Solution

February 23, 2021

Greatly reduce power dissipation and shrink form factor with a highly robust integrated digital output solution, the MAX14919.

On the Go Vital Monitoring and Gaming Platform

January 13, 2021

This blog explores an application using a low power SIMO PMIC, the world’s smallest solution size and highest system efficiency, and the story behind it.

The Dawn of the Self-Aware Machine

December 10, 2020

What does "The Dawn of the Self-aware Machine" really mean? I am sure many are thinking of the human-like robots seen in the movies as a way to further replace people on the factory floor.

How iButton Devices Facilitate Electric Car Safety

October 29, 2020

Formula Student Germany competitors design fierce electric race cars. They’ve relied on Maxim Integrated’s iButton devices for electric car safety.

How Being Bold Brings Smart Automation Solutions

October 27, 2020

See how the industry’s first true software-configurable universal analog IO solution provides the flexibility to meet industrial automation challenges.

How Performance at the Edge Drives Smarter Manufacturing

October 26, 2020

Maxim Integrated’s Jeff DeAngelis explains how the COVID-19 pandemic has highlighted what’s needed for manufacturing lines to adapt to changing demands.

Featured Products

MAX77757 3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries

MAX77757 3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries

The MAX77757 is a standalone 3.15A charger with integrated USB Type-C®CC detection with JEITA co...
  • Up to 16V Protection
  • 13.7V Maximum Input Operating Voltage
  • 3.15A Maximum Charging Current
  • 6A Discharge Current Protection
    • No Firmware or Communication Required
    • Integrated CC Detection for USB Type-C
    • Integrated BC1.2 Detection for Legacy SDP, DCP, CDP, and DCD Timeout
    • Integrated USB Detection for Common Proprietary Charger Types
    • Automatic Input Current Limit Configuration
    • Input Voltage Regulation with Adaptive Input Current Limit (AICL)
  • Reverse Boost Capability up to 5.1V, 1.5A
  • Termination Voltage
    • 4.1V to 4.5V for Li-ion and Li-poly Batteries
    • 3.6V/3.7V for LiFePO4 Battery
  • Safety
    • Charge Safety Timer
    • JEITA Compliance with NTC Thermistor (MAX77757J)
    • HOT/COLD Stop Charging with NTC Thermistor (MAX77757H)
    • Thermal Shutdown
  • Pin Control of All Functions
    • Resistor Configurable Fast-Charge Current
    • ENBST Pin to Enable and Disable Reverse Boost
    • STAT Pin to Indicate Charging Status
    • INOKB Pin to Indicate Input Power-OK
    • THM Pin to Disable Charge
  • Integrated Power Path
  • Integrated Battery True-Disconnect FET
  • 3mm x 3mm, 24-Lead FC2QFN Package
MAX77976 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

MAX77976 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

The MAX77975/MAX77976 is a high-performance high-input 3.5/5.5A fast charger with Smart Power Se...
  • High-Efficiency Single-Cell Switching Charger
    • Up to 5.5A Charging with MAX77976
    • 91.2% Buck Efficiency at 4A, 12V Input
    • 90.5% Charging Efficiency at 3.5A, 9V Input
    • Optimized for High Voltage Input Operation
    • Accelerate Charge Time by Monitoring Kelvin Sensing Battery Voltage
    • Up to 3.2A Input Current Limit with AICL
  • +28V Absolute Maximum Input Voltage Rating
  • 4.7V to 19V Input Operating Voltage Range
  • Reverse Boost with Programmable Output Voltage Options up to 12V
    • Up to 18W for MAX77976
    • Up to 12W for MAX77975
  • Integrated Battery True-Disconnect FET
    • RDSON = 7.7mΩ
    • Discharge Current up to 10A
    • Support Shipping Mode and Low Battery Leakage Current
    • 1.3MHz/2.6MHz Switching Frequency with 1μH/0.47μH Inductor
    • Disconnect Input (DISQBAT)
  • Safety
    • Battery Temperature Sensing and Charge Safety Timer
    • JEITA Guideline Compliant
    • Thermal Regulation and Thermal Shutdown
    • System Voltage OVLO/UVLO
  • Charge Status Output for LED
  • Push-Button Input for Exiting from Ship Mode
  • External Discharge FET Enable Output
  • Dedicated Input for Suspend Mode (SUSPND)
  • I2C Interface
  • 4mm x 4mm FC2QFN
MAX77975 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

MAX77975 19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD

The MAX77975/MAX77976 is a high-performance high-input 3.5/5.5A fast charger with Smart Power Se...
  • High-Efficiency Single-Cell Switching Charger
    • Up to 5.5A Charging with MAX77976
    • 91.2% Buck Efficiency at 4A, 12V Input
    • 90.5% Charging Efficiency at 3.5A, 9V Input
    • Optimized for High Voltage Input Operation
    • Accelerate Charge Time by Monitoring Kelvin Sensing Battery Voltage
    • Up to 3.2A Input Current Limit with AICL
  • +28V Absolute Maximum Input Voltage Rating
  • 4.7V to 19V Input Operating Voltage Range
  • Reverse Boost with Programmable Output Voltage Options up to 12V
    • Up to 18W for MAX77976
    • Up to 12W for MAX77975
  • Integrated Battery True-Disconnect FET
    • RDSON = 7.7mΩ
    • Discharge Current up to 10A
    • Support Shipping Mode and Low Battery Leakage Current
    • 1.3MHz/2.6MHz Switching Frequency with 1μH/0.47μH Inductor
    • Disconnect Input (DISQBAT)
  • Safety
    • Battery Temperature Sensing and Charge Safety Timer
    • JEITA Guideline Compliant
    • Thermal Regulation and Thermal Shutdown
    • System Voltage OVLO/UVLO
  • Charge Status Output for LED
  • Push-Button Input for Exiting from Ship Mode
  • External Discharge FET Enable Output
  • Dedicated Input for Suspend Mode (SUSPND)
  • I2C Interface
  • 4mm x 4mm FC2QFN
MAX17310 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

MAX17310 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

The MAX17300–MAX17303/MAX17310–MAX17313 is a 24μA IQ stand-alone pack-side fuel gauge IC with pr...
  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent)
    • Overcharge Current 
    • Over/Undertemperature
    • Battery Internal Self-Discharge Detection (MAX17300/10 Only)
    • Ideal Diode Discharge During Charge Fault
    • Charging Prescriptions (JEITA)
    • Zero-Volt Charging Option
    • Undervoltage + SmartEmpty
    • Overdischarge/Short-Circuit 
  • Nonvolatile Memory for Stand-Alone Operation
    • ​History Logging, User Data (122 Bytes)
  • Low Quiescent Current
    • FETs Enabled: 24µA Active, 18µA Hibernate
    • FETs Disabled: 5µA Ship, 0.5µA/0.02µA DeepShip
  • Parallel Battery Management (MAX17300/10 Only)
  • Pushbutton Wakeup—Eliminates System Consumption Until Button Press
  • ModelGauge m5 EZ Algorithm
    • Percent, Capacity,Time-to-Empty/Full, Age
    • Cycle+™ Age Forecast
  • Dynamic Power—Estimates Power Capability
  • Precision Measurement Without Calibration
    • ​Current, Voltage, Power, Time, Cycles
    • Die Temperature​/Thermistor
MAX17300 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

MAX17300 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

The MAX17300–MAX17303/MAX17310–MAX17313 is a 24μA IQ stand-alone pack-side fuel gauge IC with pr...
  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent)
    • Overcharge Current 
    • Over/Undertemperature
    • Battery Internal Self-Discharge Detection (MAX17300/10 Only)
    • Ideal Diode Discharge During Charge Fault
    • Charging Prescriptions (JEITA)
    • Zero-Volt Charging Option
    • Undervoltage + SmartEmpty
    • Overdischarge/Short-Circuit 
  • Nonvolatile Memory for Stand-Alone Operation
    • ​History Logging, User Data (122 Bytes)
  • Low Quiescent Current
    • FETs Enabled: 24µA Active, 18µA Hibernate
    • FETs Disabled: 5µA Ship, 0.5µA/0.02µA DeepShip
  • Parallel Battery Management (MAX17300/10 Only)
  • Pushbutton Wakeup—Eliminates System Consumption Until Button Press
  • ModelGauge m5 EZ Algorithm
    • Percent, Capacity,Time-to-Empty/Full, Age
    • Cycle+™ Age Forecast
  • Dynamic Power—Estimates Power Capability
  • Precision Measurement Without Calibration
    • ​Current, Voltage, Power, Time, Cycles
    • Die Temperature​/Thermistor
MAX17852 14-Channel High-Voltage, ASIL D, Data-Acquisition System with Integrated Current-Sense Amplifier

MAX17852 14-Channel High-Voltage, ASIL D, Data-Acquisition System with Integrated Current-Sense Amplifier

The MAX17852 is a flexible data-acquisition system for the management of high-voltage and low-vo...
  • AECQ-100 Grade 1 Temp. Range -40°C to 125°C
  • 65V Operating Voltage
  • Ultra-Low-Power Operation
    • Standby Mode: 2mA
    • Shutdown Mode: 2µA
  • Redundant ADC and Comparator Acquisitions
  • Simultaneous Cell and Bus-Bar Voltage Acquisitions
  • 14 Cell-Voltage Measurement Channels
    • 1mV Accuracy (3.6V, 25°C)
    • 2mV Accuracy (5°C to 40°C)
    • 4.5mV Accuracy (-40°C to 125°C)
  • 14 Cell-Balancing Switches
    • > 300mA Software-Programmable Balancing Current
    • Optimized Driving (AUTOBALSWDIS) and Parking Balancing Modes
    • Automated Balancing with Individual Cell Timers
    • Automated Balancing by Cell Voltage
    • Emergency Discharge Mode
  • Low-Noise Current-Sense Amplifier
    • 5mA resolution (Gain = 256)
  • Four Configurable Auxiliary Inputs for Temperature, Voltage, or GPIO
  • Integrated Die Temperature Measurement
  • Automatic Thermal Protection
  • Individually Configurable Safety Alert
    • Overvoltage, Undertemperature and Undervoltage, Overtemperature Faults
    • One Cell-Mismatch Alert
  • Support ASIL-D Requirements for Cell Voltage, Temperature, Current, Communication
  • Selectable UART, Dual UART, or SPI Interface
  • Battery-Management UART Protocol
    • Daisy-Chain Up to 32 Devices
    • Capacitive Communication-Port Isolation
    • Up to 2 Mbps Baud Rate (auto-detect)
    • 1.5µs Propagation Delay (per device)
    • Packet-Error Checking (PEC)
  • I2C Master
  • Configurable Hardware-Alert Interfaces
  • Factory-Trimmed Oscillator (No External Crystals Required)
  • 32-Bit Unique Device ID
  • 64-Pin (10mm x 10mm) LQFP Packagenn
MAX77960 25V<sub>IN</sub> 3A/6A<sub>OUT</sub> USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

MAX77960 25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

The MAX77960/MAX77961 are high-performance wide-input 3A (MAX77960)/6A (MAX77961) buck-boost cha...
  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT
  • MAX77960
    • 100mA to 3.15A Programmable Input Current Limit
    • 100mA to 3A Programmable Constant Current Charge
  • MAX77961
    • 100mA to 6.3A Programmable Input Current Limit
    • 100mA to 6A Programmable Constant Current Charge​
  • Remote Differential Voltage Sensing
  • 600kHz Switching Frequency
  • System Instant On with Smart Power Selector Power Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/3A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 4mm x 4mm, 30-Lead FC2QFN
MAX77961 25V<sub>IN</sub> 3A/6A<sub>OUT</sub> USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

MAX77961 25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

The MAX77960/MAX77961 are high-performance wide-input 3A (MAX77960)/6A (MAX77961) buck-boost cha...
  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT
  • MAX77960
    • 100mA to 3.15A Programmable Input Current Limit
    • 100mA to 3A Programmable Constant Current Charge
  • MAX77961
    • 100mA to 6.3A Programmable Input Current Limit
    • 100mA to 6A Programmable Constant Current Charge​
  • Remote Differential Voltage Sensing
  • 600kHz Switching Frequency
  • System Instant On with Smart Power Selector Power Path
  • ​Charge Safety Timer
  • Die Temperature Regulation with Thermal Foldback Loop
  • Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation
  • 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold
  • ​Reverse Buck Mode 5.1V/3A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 4mm x 4mm, 30-Lead FC2QFN
MAX20361 Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter

MAX20361 Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter

The MAX20361 is a fully integrated solution for harvesting energy from single-/multi-cell solar ...
  • Single-/Multi-Cell Solar Energy Harvester
    • 225mV to 2.5V (typ) Input-Voltage Range
    • Efficient Harvesting from 15μW to Over 300mW of Available Input Power
      • 86% Efficiency at VSYS = 3.8V, ISRC = 30mA
    • Small Solution Size
      • Utilizes Small 2016 4.7μH Inductor
  • Maximum Power Point Tracking (MPPT) Technique Using Fractional VOC Method
    • Programmable Fractional VOC Regulation Point through I2C Interface
  • Battery/Supercapacitor Charger
    • Programmable Battery Termination Voltage through I2C Interface
    • Programmable Power Good Wake-Up Signal Output Threshold through I2C Interface
MAX17853 14-Channel High-Voltage Data-Acquisition System

MAX17853 14-Channel High-Voltage Data-Acquisition System

The MAX17853 is a flexible data-acquisition system for the management of high-voltage and low-vo...
  • AECQ-100 Grade 1 Temperature Range -40°C to 125°C
  • 65V Operating Voltage
  • Ultra-Low-Power Operation
    • Standby Mode: 2mA
    • Shutdown Mode: 2µA
  • Redundant ADC and Comparator (COMP) Acquisitions
  • Simultaneous Cell and Bus-Bar Voltage Acquisitions
  • 14 Cell-Voltage Measurement Channels
    • 1mV Accuracy (3.6V, 25°C)
    • 2mV Accuracy (5°C to 40°C)
    • 4.5mV Accuracy (-40°C to +125°C)
  • 14 Cell-Balancing Switches
    • > 300mA Software-Programmable Balancing Current
    • Optimized Driving and Parking Balancing Modes
    • Automated Balancing with Individual Cell Timers
    • Automated Balancing by Cell Voltage
    • Emergency Discharge Mode
  • Six Configurable Auxiliary Inputs for Temperature, Voltage, or GPIO
  • Integrated Die-Temperature Measurement
  • Automatic Thermal Protection
  • Individually Configurable Safety Alert
    • Overvoltage, Undertemperature Faults
    • Undervoltage, Overtemperature Faults
    • One Cell-Mismatch Alert
  • Support ASIL D Requirements for Cell Voltage, Temperature, Communication
  • Selectable UART, Dual UART, or SPI Interface
  • Battery-Management UART Protocol
    • Daisy-Chain Up to 32 Devices
    • Capacitive Communication-Port Isolation
    • Up to 2Mbps Baud Rate (auto-detect)
    • 1.5µs Propagation Delay (per device)
    • Packet-Error Checking (PEC)
  • Configurable Hardware-Alert Interfaces
  • Factory-Trimmed Oscillator
    • No External Crystals Required
  • 32-Bit Unique Device ID
  • 64-Pin (10mm x 10mm) LQFP Package
MAX20342 USB Type-C Charger Detector with Integrated OVP

MAX20342 USB Type-C Charger Detector with Integrated OVP

The MAX20342 is a USB Type-C® charger detector that is also capable of detecting chargers compli...
  • Low Power Consumption
    • Battery Standby Current 17µA (typ)
    • Battery Shutdown Current 2.5µA (typ)
  • Delivers USB Compliance and Flexibility
    • Compliant with USB Type-C Specification Revision 1.3
    • Supports USB Battery Charger Specification Revision 1.2
    • Detects Proprietary Chargers such as Apple® and Samsung®
  • Simplifies Complex System Designs
    • Integrated Overvoltage Protection
    • Negative Swing Audio Capable Hi-Speed USB/UART Switches
    • Automatic Switch and Charger Interface Control
    • Full Control through I2C Interface
    • Interrupts for Device Status Changes
  • Improves Quality and Reliability
    • Automatic Factory Mode Configuration
    • USB Type-C Port Moisture Detection
    • Low-Corrosion DRP Mode
  • Robust Protection
    • VB Connection Withstands up to +30V
    • VB Surge Protection up to ±120V
    • ±15kV HBM ESD Protection on CC1, CC2, SBU1 and SBU2 Pins
    • ±6kV HBM ESD Protection on CDP and CDN Pins
    • ±15kV Air-Gap IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
    • ±8kV Contact Discharge IEC 61000-4-2 on CC1, CC2, SBU1, and SBU2 Pins
  • Saves Board Space
    • 2.62mm x 2.02mm WLP Package

Design Solutions

Technical Documents USB-C and USB-C Power Delivery Solutions

Technical Documents Choose the Right Battery Fuel Gauge for Fast Time-to-Market and Maximum Run-Time

Software & Design Tools

Technical Documents MAX17055 Driver

Technical Documents MAX77650–MAX77651 SIMO Calculator

Featured Reference Designs

Product Image

MAX17055XEVKIT

Combines coulomb counting and voltage fuel gauging for highest SOC accuracy.