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Replacing old hardwired smoke alarms, pros/cons of wired vs battery for Nest Protect?

Community Specialist
Community Specialist

Disclaimer: This thread was migrated from our previous version of the Google Nest Community. You can continue to receive updates on your thread issue here or simply ask, browse or more in the new Google Nest Community.

Original Poster: Ashlea Smith 6278 

Do I need to use the wired Nest Protect for a previously wired system or can I switch to the battery version? Are there any pros or cons for the battery vs wired Nest Protect systems?


Community Specialist
Community Specialist
Hey Ashlea, 
Thanks for reaching out to us and welcome to our community! We're happy to hear that you're considering a Nest Thermostat for your home. 
This handy guide should help you compare and contrast battery/wired Protects. For a battery model Protect, it can offer convenience since it doesn't involve connecting wires. For a wired Protect, you would receive consistent power (120V - 240V), and its batteries are used as backup in the case of a power outage. 
I hope this helps! Let me know if you have any other questions for us. 
-From Ai, Community Specialist.