The SmartBand is rechargeable via a USB cable which is included in the box CHiP comes in.
Powering the SmartBand:
Plug the Micro USB Cable into the Micro USB port on the CHiP SmartBand and connect to a power source as indicated in the diagram.
Charging mode is indicated by a flashing purple light.
When fully charged, the LED light on the CHiP SmartBand will remain solid purple.
Press the center button on CHiP SmartBand to re-activate the band.