Is there a way to check battery percentage during a ride?

[jonas]

Sure the display shows the battery level, but is there a way to view the exact battery percentage during a ride?

So far I have only found the "ST Unlocker" app, but it requires shutting down the bike and the motor isn't working while the app is connected.

 

[Eduardoramundo]

You can apparently use a “fake” channel On a Garmin. Would be interested if anyone knows how to do this.