ITEM NAME:WeMos D1 mini Single Lithium Battery Charging Board D1 Lithium Battery Boost lj Description: Connect lithium Battery to this shield, power supply for the entire D1 mini system. When the battery run out, you do not need to unplug the battery, just using usb port to charging. Features: Charging Voltage: max: 10V, recommend: 5V Charging Current: max: 1A Lithium Battery voltage: 3.3-4.2V Boost Power Supply: 5V(max: 1A) Pins: 5V: 5V(max: 1A) Power Supply GND: GND Ports: XH2-2.54MM (Port 1): Connect to lithium Battery (normal 3.3-4.2V) Micro USB (Port 2): Charging port (normal 5V) Green LED: lights when charging is completed Red LED: lights when charging J1: setting max charging current, 0.5A or 1A..Find many great options and get the best deals for WeMos D1 mini Single Lithium Battery Charging Board D1 Lithium Battery Boost lj at the best online prices at shop2india!