Does the device have a backup battery source? What happens if there’s a blackout? December 15, 2021 20:05 Updated Vayyar Care does not have a backup battery source. In the event of a blackout, the device will not work. Related articles What happens if I unplug the Vayyar Care device from the power supply? If Wi-Fi connection is lost will Vayyar Care still work? Can the alarm be canceled if everything is OK? In which countries is Vayyar Care available? Will Vayyar Care work with pets in the home?