This app is pretty slow to react, and oftentimes doesn't work. Lots of failed requests, with no realm explanation why. I'm currently plugged into slow 120v charging. It is going to take roughly 25 hours to charge, yet the app thinks it will be done in 4 hours and 40 minutes. I realize that 120v is the slowest way to charge, and that is fine. The problem is the app is calculating incorrectly. Perhaps I have a setting wrong, but if that is the case, finding a way to change it is difficult.