Winter temperatures in Minnesota have not affected night vision on our Google Nest Hello Doorbells and our cameras. It was 13 below Fahrenheit last night. I don't know about the 2nd Gen Google Nest Doorbell.
@Matteo71 thanks for reaching out here in the Community and for sharing with us your issue. At temperatures below freezing, the lithium-ion battery in your Google Nest Camera or Doorbell won’t be able to charge. The batteries in Nest Cam (battery) and Nest Doorbell (battery) have the following minimum temperature requirements:
At temperatures between -4°F (-20°C) and 32°F (0°C), the battery can still power your device, but it won’t charge. It may also drain more quickly than usual. At temperatures close to -4°F (-20°C), your battery may have less than half the life that it has in warm weather.
Give these steps a try:
Home app: Go to your Nest Doorbell settings and turn Night Vision off, then turn it back on.
Nest app: Unplug your Nest Doorbell, wait 10 seconds then plug it back in. This will restart your Nest Doorbell and reset the Wi-Fi connection.Hit this link for more information.
Let us know how it goes.
I appreciate the help, MplsCustomer.