DFRobot (DFR0563) Battery Fuel Gauge, Gravity, I2C, 3.7V, Lithium

DFR0563 is a gravity: I2C 3.7V Li battery fuel gauge. This 3.7V lithiumbatteries are commonly used in many projects. However, the remaining power andvoltage of the lithium battery are highly nonlinear. We can only roughly judgewhether the battery is full or almost empty according to its voltage. Thegravity I2C 3.7V Lithium battery fuel gauge employs a gravity I2C interface,ultra-low operating current, and real-time tracking of the relative state ofcharge (SOC) of the battery through Analog Devices patented algorithm,eliminating the need for full-to-empty relearning and offset accumulationerrors. Plug and play to accurately measure the voltage and remaining power ofthe battery. The module also features as a low battery power alert interruptfunction. Applications include solar weather station, street light lithiumbattery charger, robotics.Features:- Analog Devices patented algorithm, accurate voltage and remaining powerreadings of lithium battery- No full-to-empty relearning process, no offset accumulation errors, plug andplay- Wide input voltage, compatible with 3.3V and 5V controllers- Programmable low power alert interrupt threshold- Battery reverse connection protection- Input Voltage (VCC) from 3.3V to 6.0V, battery input voltage (BAT IN) rangefrom 2.5V to 4.2V- Battery type(BAT IN): 3.7V Li-polymer/Li-ion battery- 50 A operating current, interface: gravity I2C (logic level: 0 to 3.3V)- Dimension is 22mm x 30mm