For those of us with EV chargers that use the Fullpower apk/app on android, there is now a clone of this app that works directly from home assistant via HACS.
You can find it at GitHub - oooshk/ha-fullpower: FullPower App HACS Integration for Home Assistant · GitHub
Its currently a manual install, so the usual add repository requirement exists.
Hope this saves someone else some time and effort.