You can check the battery level of your QardioBase in the QardioBase section of your Qardio App. Your scale and app will notify you when the battery is running low, at which point we recommend you charge QardioBase. To do so, connect your QardioBase to a power source using the USB to micro USB cable provided with the scale. Your QardioBase will display a battery icon to indicate it is charging.
The Qardio App will notify you when your QardioBase is fully charged, and your scale will display a fully charged battery icon. Charging the battery completely can take up to five hours.
With daily use, the battery in your QardioBase will last a year.
Do not use your QardioBase while it is charging.