When you have the ELEMNT paired to your Di2 system, you can check the battery level by navigating to the sensor using the ELEMNT menu.

1. Press the Menu button to open the ELEMNT menu.
2. Use the Down Toggle button to scroll down to the Di2 sensor.
3. Press the Right button to select More.
4. Battery level will be displayed on this page.

When the battery level drops below 20%, you will receive a pop-up notification on the ELEMNT notifying you of the low charge.