LiIon or LiPoly Charger Module BFF Add- for QT Py for Adafruit

LiIon or LiPoly Charger Module BFF Add- for QT Py for Adafruit Description

This little lipo charger is designed to fit onto the back of any QT Py board, and make it easy for portable powering. Simply plug any standard 3.7V/4.2V lithium polymer or lithium-ion rechargeable battery into the JST plug the end. We include some header that you can solder to your QT Py.
When powered by the USB port the QT Py, the charger kicks in and will charge the battery at 200mA max rate. You'll see the yellow LED light when that happens.
When the USB is removed, the battery will reverse charge into the 5V port via a Schottky diode. You can turn it or off with the built in slide as well.
A simple voltage divider the cathode side of the diode and connected to pin A2 will let your firmware detect basic modes: if the voltage is over 4.3V, it is probably plugged into USB. If the voltage is 4.2V or below its probably running the Lipoly battery and you can roughly determine the battery state.
For use with LiPoly/LiIon batteries only! Other batteries may have different voltage, chemistry, polarity, or pinout.

Uses the 5V input via USB Type-C connector QT Py
For charging single Lithium Ion/Lithium Polymer 3.7/4.2v batteries (not for older 3.6/4.1v cells)
200mA charge current
Color: Black
Material: PCB

Package Contents:
1 * Module