The SparkFun Battery Babysitter is a comprehensive single-cell Lithium Polymer (LiPo) battery manager that combines the functionality of a battery charger and a battery monitor. It's equipped with a pair of Texas Instruments LiPo-management ICs: a BQ24075 battery charger and a BQ27441-G1A fuel gauge. This efficient battery manager is all you need for your battery-powered projects to function safely and for prolonged periods.The Battery Babysitter comes with a BQ24075 battery charger that supports adjustable charge rates of up to 1.5A, as well as USB-compliant 100mA and 500mA options. It also features power-path management, ensuring a steady power supply to your project, even if the battery is drained. The BQ27441-G1A fuel gauge is a self-calibrating, I2C-based component that measures your battery’s voltage to estimate its charge percentage and remaining capacity. Connected to a current-sensing resistor, it can also measure current and power. This makes it an invaluable tool for monitoring your project’s power consumption. Features of the SparkFun Battery Babysitter include a DIP-switch-selectable charge rate of 100mA, 500mA, or 1.5A, a MicroUSB port for charging, and external options. It also boasts of dynamic power-path management for a reliable output supply. An On/Off switch disconnects the battery for more power saving, and a 5V-tolerant I2C interface connects to the fuel gauge. The fuel gauge measures voltage, percentage, and current.Documents available for the SparkFun Battery Babysitter include a schematic, Eagle Files, a hookup guide, datasheets for the BQ24075 Charger and BQ27441-G1A Fuel Gauge, an Arduino Library, and a GitHub repository. https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-01-23 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-02-07 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-02-08 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-09-27 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-10-11 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-10-17 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-10-24 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-10-27 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-11-02 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-11-06 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-11-09 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-11-24 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-11-27 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-02 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-05 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-07 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-13 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-21 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2025-12-26 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-01 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-09 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-22 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-25 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-28 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-01-30 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-02-05 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-02-10 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-02-16 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-05 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-09 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-14 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-19 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-26 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-28 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-03-31 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-04-05 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-04-12 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-04-17 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-04-19 https://elecena.pl/product/27745976/sparkfun-battery-babysitter-lipo-battery-manager 2026-04-26