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Battery Management 
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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..
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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
Accurate Technology for Easy, Secure Fuel Gauging You Can Trust
How Secure Fuel Gauges Can Prevent Battery Counterfeiting
Technical Documentation
Customer Testimonials
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
Just 1-Wire to Operate I2C/SPI Endpoints
March 03, 2022
It is possible to deliver power and data to operate I2C and SPI endpoints, such as humidity or temperature sensors, with the use of a single wire connection and ground using Analog Devices’ 1-Wire technology.
Relieving Supply Chain Issues of the 1-Wire Silicon Serial Number Chip
February 17, 2022
The 1-Wire Silicon Serial Number DS2401 and DS1990A, has suffered supply chain issues. To relieve this issue, Analog Devices has developed the alternatives DS2401A and DS1990AA.
Understand When and Why System Reliability Matters
October 13, 2021
Get a better understanding of when and why system reliability is important and how a low-power microcontroller can enhance reliability.
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.
Featured Products
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
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 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 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
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
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
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
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 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 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
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
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
Design Solutions
USB-C and USB-C Power Delivery Solutions
Choose the Right Battery Fuel Gauge for Fast Time-to-Market and Maximum Run-Time
Software & Design Tools
MAX77650–MAX77651 SIMO Calculator
Featured Reference Designs
MAX17055XEVKIT
Combines coulomb counting and voltage fuel gauging for highest SOC accuracy.
MAX17055XEVKIT
Combines coulomb counting and voltage fuel gauging for highest SOC accuracy.
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