Micro USB 3V/5V Mobile Power Bank 18650 Battery Shield V8/V9 Holder For Arduino
18650 Battery Shield. Supports up to two 18650 batteries. This product does not include 18650 battery. 2X 18650 Battery Shield. 3V & 1A Output. 3V output port x3. 4X 18650 Battery Shield. 5V & 2A Output.