Ring doorbell batterry

Ring doorbell battery went from 30+ hardly had done any recordings then an alert popped up that it was on 7%.

This remained on overnight.

Next morning when I went to remove battery it was on 29%

Why?

Hi @Wob. What specific doorbell model do you have and what is the RSSI for this device? Is this device hardwired or connected to a Solar Panel? This information will give us a bit more insight into what is happening.