Battery Management Solutions

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

Our battery charger ICs allow safe charging for 1- to 4-cell Li-ion (Li+)/Li-Polymer, NiMH/NiCd, lead-acid, and rechargeable batteries of other chemistries in multiple form factors. They provide support for USB Type-C devices, meeting all power delivery (PD) 3.0 voltage range specifications.

Battery Chargers

Fuel Gauges

Our fuel gauges monitor remaining battery charge using the proprietary ModelGauge algorithm to provide the highest accuracy. The comprehensive integrated protection improves battery safety while SHA-256 authentication helps prevent battery-pack cloning. These fuel gauges can be used for 1-cell as well as multiple-series cell batteries. In combination with our battery chargers, they provide the efficiency, accuracy, and protection required to support Li+ battery applications.

Battery Fuel Gauges

Battery Identifiers and Authenticators

Our identification ICs provide data storage and serial number identification for battery packs. Cyclic redundancy check (CRC) verification provides data integrity during communication. The low-voltage 1-Wire® interface of our battery identification ICs enables serial communication on a single battery contact. The 64-bit unique serial number allows multidrop networking and identification of individual devices.

Our battery authentication ICs employ hardware-based Secure Hash Algorithm-256 (SHA-256) token authentication that provides security without the added cost and complexity of a microprocessor-based system. Battery authentication is performed using a single contact through the 1-Wire interface.

Battery Identification and Authentication

Battery Monitors

Our battery monitor ICs have a high cell count, allowing a flexible system architecture. They provide simultaneous sampling to improve both cell balancing and battery pack lifetime. They also combine comprehensive diagnostics and robust communications with high reliability.

Battery Protectors

We have a selection of battery protector ICs that enhance the useful operating life of Li+ batteries by monitoring individual cell voltages and preventing overvoltage or undervoltage conditions. They also protect battery packs against charge current, discharge current, and battery-pack short/ fault conditions. In addition, they also detect abnormal levels of internal self-discharge that can be an early indicator of batteries becoming potentially hazardous.

Battery Selectors

Our range of battery selector ICs provide power-source control for dual-battery systems. By independently performing power-source monitoring and selection, the system power-management µP is freed up to perform other tasks.

Battery Monitors, Protectors, and Selectors




Battery Management Development Boards



Battery Management Design Resources


Design Tools and Software

Application Notes

Videos


USB-C Fundamentals
16:10 June 01, 2020


Battery Management Featured Products


High-Efficiency Buck-Boost Regulator

MAX77801

The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77801 utilizes a four-switch H-bridge configuration to support buck and boost operating modes. Buck-boost provides 2.60V to 4.1875V of output voltage range and up to 2A output current.

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Wearable Power Management Solution for Primary Cells

MAX20310

Wearable Power Management for Single-Cell Zinc Air, Silver Oxide, and Alkaline Battery Architectures

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Wearable Charge-Management Solution

MAX14690

Extends Battery Life of Wearable Electronics

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Dual Input, Power Path, 3A Switching Mode Charger

MAX77818

High-performance companion PMIC with ModelGaugeTM m5 fuel gauge technology.

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