1A Battery Shield For WEMOS D1 mini single lithium battery

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.

Port Introduction

Product 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:  5V
- Charging Current: 1A
- Lithium Battery voltage: 3.3-4.2V
- Boost Power Supply: 5V(max: 1A)