Hello there, Satyajit. Thanks for sharing your concerns about the Nest Doorbell (battery). We're sorry to hear that your experience with the device didn't meet your expectations. The battery life depends on factors including activity, temperature, and doorbell settings that you select. You can extend the battery life by adjusting video quality, length of video clips, time between recorded events to monitor specific areas. Check this link for more details: https://support.google.com/googlenest/answer/10901611Feel free to let us know by visiting us at the Google Nest Help Page if more help is needed: https://support.google.com/googlenest/gethelp

Hi Joseph, we understand that you're experiencing connectivity issues with your Nest Doorbell Battery. We're here to assist you. Please tap the link below to contact our specialist team.https://support.google.com/googlenest/gethelp?hl=en

Hey there, Laura. We hear your concerns with your Nest Doorbell (battery) not working in colder conditions. Here’s a tip to make sure the device works optimally:At temperatures between -20 °C (-4 °F) and 0 °C (32 °F), the doorbell can continue to work, but the battery will drain because it can't be charged. Bring it inside to a warm place, preferably at room temperature, to begin charging. If you need more help, don’t hesitate to reach out to us: https://support.google.com/googlenest/gethelp?