If there’s a power issue and the backup batteries get low, your Nest Thermostat will let you know with a low battery message in the Home app and on the display. You can easily replace the batteries with new ones. Follow the replacement directions in the last section.

Nest Thermostat. The Nest Thermostat uses 2 standard 1.5 V AAA alkaline batteries that you’ll need to replace when they get low. When the batteries start to get low, you’ll get notification on the thermostat and in the Home app. You can check the battery power level on the thermostat or in the Home app. Nest Thermostat E and Nest Learning ...

Nest Thermostat. The Nest Thermostat uses 2 standard 1.5 V AAA alkaline batteries that you’ll need to replace when they get low. When the batteries start to get low, you’ll get notification on the thermostat and in the Home app. You can check the battery power level on the thermostat or in the Home app. Nest Thermostat E and Nest Learning ...

Nest Thermostat. The Nest Thermostat uses 2 standard 1.5 V AAA alkaline batteries that you’ll need to replace when they get low. When the batteries start to get low, you’ll get a notification on the thermostat and in the Home app. You can check the battery power level on the thermostat or in the Home app. Nest Thermostat E and Nest Learning ...

Important: Use only AA Energizer Lithium L91 batteries with the Nest Heat Link. Don’t use rechargeable or alkaline batteries. If you do, they will quickly drain and will need to be replaced soon after installing them. To replace the batteries: Pull off the Heat Link’s fabric cover. Use the battery pull tab to release the batteries.

Check Protect’s battery level . Open the Nest app . Select the Protect that you want to check. The battery status and the last time the battery level was checked by Protect’s Self Test should appear on this page. Nightly Promise . Protect’s Nightly Promise lets you know everything is working, and that the batteries are at a safe level.

Only a Nest Connect can connect your lock to Wi-Fi. If your lock goes offline, you won't be able to operate your lock with the Nest app, but you can still operate it with the keypad. If you previously used Nest Guard as a bridge to connect your Nest x Yale Lock to Wi-Fi, you must take action to replace your Nest Guard with a Nest Connect.

Most Google Nest thermostats have a USB port that can be used to quickly charge the battery. In rare cases, it is used for troubleshooting by the Google Nest support team. Your Nest thermostat’s internal battery is charged by your system sending power over the wires connected to it.

Connecting a Nest thermostat to an incompatible system, such as a millivolt, proprietary or high voltage system, won’t deliver the power needed to charge your thermostat’s battery and can damage your Nest thermostat. 4. Check your thermostat’s wiring. Symptoms caused by wiring issues usually occur when you're first installing your thermostat.

Nest Learning Thermostat (4th gen) has a rechargeable battery. If the thermostat turns off while you’re troubleshooting, charge the thermostat with a USB cable . If you recently turned power off at the circuit breaker of the heating and cooling system, make sure it’s back on.