When I view the Battery Health feature under Labs, that information is over a month old. The last reported battery health day/data was May 26, 2017. It's now July 13, 2017. I've never experienced such a lag before. Why is this? I am currently using Automatic Classic dongle and app (Android).
The Dashboard Labs, including Battery Health, are still in beta, and some are currently having some issues. We are working on resolving them, but unfortunately I don't have an ETA for when that will happen.