Doorbot: battery_life not updated

[fhempy]

Hi, I have an issue with the battery_life value which is not updated. I do update_data() every 5 minutes but the value remains unchanged. The value only updates if I restart my process. Everything else, like wifi status, history or dings work fine.

The code can be found here: https://github.com/dominikkarall/fhempy/blob/master/FHEM/bindings/python/fhempy/lib/ring/ring.py#L117

Many thanks for your work!