Your phone tells you when it's charging, but there's so much more if could be telling you. That's where Ampere comes into play. This app provides a wealth of charging and power data, and today it's getting an update to v2.0 with new display layouts.
Here's the changelog for the big v2.0 update.
5 display styles
Favorite style selector
Battery voltage in notification
Battery temperature in notification
You can swipe left and right to move between the different app styles. They are all a bit more flashy than the original list version. When you find one you like, you can tap the star icon to mark it as your favorite. That's what Ampere will default to from that point forward. The notification for Ampere also has more data visible in this update. Ampere is free to use with ads, but a quick in-app purchase removes them.