Hardwired doorbell only charges during warmer months

I have had my Video Doorbell 3 Plus for approximately 18 months now. I have it hardwired and it works fine during the warmer months of the year. However, during the winter months, it will not charge from the doorbell wiring and I need to remove the battery and charge it via the USB cable. I researched this previously and I saw that it is a known issue that the batteries in hardwired units may not charge in cold areas. (FYI, I live in south-central PA and it's not THAT cold here.)So during the colder months of the year when the doorbell will not charge, I do not get alerts to inform me when the battery is low. The app will not display battery alerts because the device is hardwired. Instead, it takes a day or so to realize that I haven't been seeing any motion alerts because the battery is dead.Is there any way to receive battery alerts on a hardwired unit? Also, is there any way to ensure the doorbell charges all year round?? I mean, if you live in Wisconsin, northern Maine, or anywhere north of me, do your hardwired doorbells also not charge during the colder 6 months of the year?Thank you in advance for any suggestions.