All of my ZHA devices are currently reporting 100% battery level, they have been active for around 3 months so it’s hard for me to believe this to be a valid value.
I have this same setup (ZHA and Phillips Hue motion sensors both indoor and outdoor). They don’t appear to report battery levels in a way that HA can read. I haven’t been able to get a reading.
Lately I’ve been struggling with the indoor ones failing to report motion intermittently.
@Jdruwe I never had good success so I replaced them (the indoor ones) with a Zooz Z-wave and those works great. I kept the Phillips outdoor motion sensor though and that works well.