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.
Features
- Charging Voltage: max: 10V, recommend: 5V
- Charging Current: max: 1A
- Lithium Battery voltage: 3.3-4.2V
- Boost Power Supply: 5V(max: 1A)
Specifications
Pins:
| D1 mini | Shield |
| 5V | Power Supply, 5V(max: 1A) |
| GND | GND |
Ports:
| PH2-2.0MM (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. |
| J2 |
Connect battery to A0 |