Battery Babysitter - LiPo Battery Manager
Product details
| Management number | 205894437 | Release Date | 2025/11/02 | List Price | $33.00 | Model Number | 205894437 | ||
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The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. Its half battery charger, half battery monitor, and all youll ever need to keep your battery-powered project running safely and extensively.
The Battery Babysitter features a pair of Texas Instruments LiPo-management ICs: a BQ24075 battery charger and a BQ27441-G1A fuel gauge. The charger supports adjustable charge rates of up to 1.5A, as well as USB-compliant 100mA and 500mA options. It also features power-path management, guaranteeing power to your project even if the battery has died. The self-calibrating, I2C-based BQ27441-G1A measures your batterys voltage to estimate its charge percentage and remaining capacity. Its also hooked up to a current-sensing resistor, which allows it to measure current and power! Its a handy IC to have, if you ever need to keep an extra eye on your projects power draw.
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