You can check the battery level of your Body Cardio by going to Devices in Withings App. The battery level is located next to the Body Cardio. If the battery level reaches 5% or less, we advise that you charge the battery. To do so, connect your Body Cardio to a power source using the USB cable provided with the scale.

Charging the battery can take up to 5 hours. You can press the button on the side of the scale while it’s charging to check the battery level. You shouldn't use your scale while it is charging.

Notes:

• If Body Cardio is not charging (even after 5 hours), try to reboot it by pressing and holding the button for 20 seconds. You can also try to use different USB cables and USB ports.
• Your Body Cardio has an approximate battery life of 1 year.