No low battery e-mail or notification?

We've had two stick-up cams and a doorbell 2 for over a year now. In the beginning, we would receive e-mails telling us the battery was low. So we knew when to charge the battery. I've not been receiving these emails for a while now, so I contacted customer service. They told me they've stopped sending these e-mails all together? The app doesn't do low-battery-notifications either. I'm so riddled as to why there's no way to receive any kind of notification when your battery is low? These products aren't cheap, the subscriptions aren't cheap... And now there's no way to tell when to charge the battery? This just seems ridiculous to me. I really don't want to have to load up the app every day to see how much battery life I have left in my devices...