{"title":"SparkFun Battery Babysitter - LiPo Battery Manager","handle":"sparkfun-battery-babysitter-lipo-battery-manager","url":"/products/sparkfun-battery-babysitter-lipo-battery-manager","description":"The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll 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 battery’s voltage to estimate its charge percentage and remaining capacity. It’s also hooked up to a current-sensing resistor, which allows it to measure current and power! It’s a handy IC to have, if you ever need to keep an extra eye on your project’s power draw.   Get Started With the Battery Babysitter Guide!                  Features:   LiPo Charger and LiPo Fuel Gauge combined into one board DIP-switch-selectable charge rates of 100mA, 500mA or 1.5A MicroUSB port for charging, or external options Dynamic power-path managment maintains a reliable output supply On/Off switch disconnects the battery for more power saving 5V-tolerant I2C interface to fuel gauge Fuel gauge measures voltage, percentage, and current    Documents:   Schematic Eagle Files Hookup Guide \nDatasheet (BQ24075 Charger) \nDatasheet (BQ27441-G1 Fuel Gauge) Arduino Library GitHub ","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11297,"title":"Default Title","sku":"SF-PRT-13777","price":47.6,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":203,"option1":"Default Title"}]}