WeMos D1 Battery Shield Charger for esp

WeMos D1 Battery Shield Charger This WeMos D1 Battery Shield Charger provides a means of powering your WeMos mini, or WeMos mini Pro 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. Specification: Charging Voltage: 10V MAX 5V Recommended Charging Current: 1A Lithium Battery Voltage: 3.3-4.2V Boost Power Supply: 5V (Max 1A) Dimension: 28 x 25 x 8 mm Weight: 5.5 g Ports: 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