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.
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.
Specification
| Charging Voltage | 10V MAX 5V Recommended |
| Charging Current | 1A |
| Lithium Battery Voltage | 3.3-4.2V |
| Boost Power Supply | 5V (Max 1A) |
| Length (mm) | 30 |
| Width (mm) | 28 |
| Height (mm) | 6 |
| Weight (gm) | 5 |
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