It’s a bit pie-in-the-sky but Mac360 has a list of alerts and notifications Apple should be working on.
Here’s an idea, Apple. Why not have a built-in, user configurable alert for the battery levels on our devices?
Think of it this way. Whether Mac, iPhone, iPad, or Watch, each device should alert us to a rapidly dropping battery level, or alert us when battery levels reach a critical point. This is long over due. Every Apple device I use that has a battery has unexpectedly conked out a few times because some wayward background process gobbled up the remaining battery life while I was busy doing something else.
I’ve had both iPhone and Mac drain battery in a few hours and without any warning.