WeMos D1 Lithium Battery Charger Board with Mini USB

The WeMos lithium battery shield provides a means of powering your WeMos mini, or WeMos mini Pro (see item HCWEMO0002) from a single cell (3.7V) lithium battery.
The shield contains a DC-DC converter to step-up the batteries 3.7V to 5V supplying your WeMos mini and shields with up to 1A of power.
When the battery is depleted simply plug the shield into a USB power source using a mini USB cable and it will automatically recharge the battery.
Two LEDs on the shield indicate when the battery is charging and when charging has completed.

Feature:-

• You can use D1 mini without USB cable, it?s really wireless now. 
• Put D1 mini anywhere, using this battery shield and a lithium Battery.
  
• Connect to the lithium battery (normal 3.3-4.2V)
  
• Charging port (normal 5V)
  
• Green LED lights up when charging is complete
  
• Red LED, lights when charging
  

Specification:-

• XH2-2.54mm (Port 1): Connect to lithium battery (3.3-4.2V)
  
• Micro USB: Charging Port (5V)
  
• Green LED: Illuminates when charging is complete
  
• Red LED: Illuminates when charging is in progress
  
• J1: Sets the maximum charging current: 0.5A or 1A

Package Includes:

1 x WeMos D1 Lithium Battery Charger Board with Mini USB