If Google Nest Protect chirps or notifies you in the app that the batteries are low after initial setup it's possible that the batteries’ voltage has temporarily dropped. This can sometimes happen when it takes longer than expected to connect your new Nest Protect to your Wi-Fi network and add it to your account. There are a couple of solutions depending on what you see and hear.
If you get a low-battery message in the app but Nest Protect doesn't chirp
If you get a message in the Nest app right after you've added your Nest Protect to your account, but you don't hear a chirp, you can just mount it and wait a day or two and see if the issue resolves itself.
If you hear a low-battery chirp from Nest Protect
If your Nest Protect chirps right after you've added it to your
If you need to replace your Nest Protect batteries
- Only use Energizer Ultimate Lithium AA (L91) lithium-ion batteries.
- Make sure you do not use alkaline batteries.
Note: If you don't see a blue light or hear the welcome message after removing the Nest Protect battery tab, it may seem like the batteries are dead. However, it's more likely they have come loose in shipping and only need to be pushed back in. Check out the article below to learn more about fixing this issue.