2 doorbell cameras here. 1 is new, other is few years old. Both hardwired. Different houses. NEVER had an issue. Late 2019 both cameras are draining out. Agree on firmware update or some other developer changes. Perhaps the scanning is increased which is sucking more power. Either way, I’m disappointed that I have to bring these in now to charge every few weeks. These cams have been through -20/-30C with no fail (worst I ever observed was 92% charge in the extreme cold). Now they constantly drain and can’t build up a charge.
Spot light cam works excellent, charges beautifully with the solar panel.
Whatever they changed needs to be looked at. Cold weather is not a good reason.