Do you have the AirPods?On iOS devices if you open the case with at least one AirPod still in the case if you have the battery widget enabled it will tell you how much charge is in the case and for the airpods. When you first open the case and connect to your iOS device you get a pop up on the screen which gives you the same info. However I suppose on android I don’t think you can see this.
However I think if you open the case without the airpods in and it’s showing an orange light it means that your case is running low and you should charge it.
How do you check how much battery you have on an note 8?