Learn more about power requirements for Nest cameras and Nest Hello
Most Google Nest cameras need to be plugged into a power outlet using their included cable and AC adapter. The Google Nest Hello video doorbell connects directly to your doorbell’s low voltage wiring. This allows it to stay connected and deliver constant video instead of only turning on after it senses motion. With a Google Nest Aware subscription, continuous power also lets your camera record the footage and use advanced cloud-based algorithms for even greater intelligence.
Because Nest cameras and Hello don’t rely on batteries, you don’t need to worry about changing them or losing your video feed if they die. Nest cameras and Hello can continuously stream video and use Nest’s powerful cloud-based algorithms to send alerts for important activity around your home. Household power lets Nest cameras keep watch 24/7.
Power usage and requirements
Nest cameras and Hello use a small amount of power for streaming video and sending alerts during the day. When it’s dark, your camera’s Night Vision LEDs require a little more power to evenly illuminate the scene. Even when it’s working its hardest, your camera never uses more than 7-9 watts, so you can keep it plugged in without worrying too much about the power it consumes.
Nest cameras plug into a standard household outlet with an adapter input of 100-240V AC, 50/60Hz and an output ranging from 5-15V DC depending on your camera model. Your camera’s power cable should be long enough to let you mount the camera where you need it.
- Nest Hello has an internal battery that is powered by your household wiring, which other Nest cameras don't have and uses low voltage wires that carry:
- In North America: 14 to 30 V AC or a transformer labeled from 16 to 24 V AC, 10VA or above
- In Europe: 10.8 to 30 V AC or a transformer labeled from 12 to 24 V AC, 8VA or above.
For more information about voltage and the power adapter included with your camera, see the following article.
Don't use an external battery pack
We do not recommend or support using a USB-connected battery with your Nest camera, such as an external battery pack that charges a phone or tablet on the go. These batteries can be unreliable, and the charge will eventually run out.
If you’re concerned about power outages in your home, a plug-in Uninterruptable Power Supply (UPS) may provide temporary power during an outage. Keep in mind, Nest cameras stream video to the cloud, so you’d need to have your camera, modem and router connected to a source of uninterrupted power.
Use only the cable and power adapter that came with your Nest camera
Third party cables and AC adapters are not recommended or supported. If your AC adapter or USB cable gets misplaced, please reach out to Nest support and request a replacement.
What happens if your camera loses power or is unplugged
You’ll get an alert and an email if your camera is without power for more than 10 minutes. The email includes a snapshot of the last thing your camera saw.
Without power, the camera won’t be able to send any further activity alerts or stream video to the cloud. But if you have a Nest Aware subscription, you can review your video historyup to the point the camera lost power.
Once power is restored, it will automatically reconnect and start streaming again, and you may start receiving alerts.