Your QardioBase will notify you when the battery is running low, at which point we recommend you charge your scale. 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.
When your QardioBase is fully charged 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.