The app uses way too much battery whenever it is running. It is completely disproportionate to any other app on my device.
Pixel 5a, CalyxOS
I compared to Organic Maps and it uses about twice as much: OM appears to use 0.5% per minute active while ABRP uses about 1% per minute.
Rendering the map at 60 FPS is a rather intense thing to do, and if your CalyxOS has some OpenGL issues it may very well be draining the battery more than normal. How does it compare to other navigation apps?
Navigation using the phone
How were you using the app when this happened? Navigating using the phone, or Android Auto? Or just planning?