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low battery using a Nest Learning Thermostat (3rd gen)

crownpt
Community Member

‎05-31-2025 04:32 AM

I have read articles about using a USB cord to charge but where do I find the connection?  I have looked at the owners manual and no where does it say there is even one to connect.

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jenniffert
Community Specialist
Community Specialist

‎06-03-2025 10:11 AM

Hi crownpt,

 

Thanks for reaching out here in the community! It seems like your Nest Learning Thermostat (3rd gen) has a low battery, and you're having trouble finding the charging port despite checking the manual. No worries, I’d be happy to help with this!

The micro-USB port is on the back of your Nest Learning Thermostat's display. You'll need to gently remove the display from its base to find it. A 30-minute charge is usually enough, but a fully drained battery could take up to 2 hours. For reference, see this article: Nest thermostat USB port.

If your Nest thermostat still shows a low battery after charging it, please confirm the following:

  • Are all thermostat wires securely connected, with no loose or exposed strands?
  • Have you inspected the thermostat's display for any bent connector pins?

Keep me posted.

 

Best regards,

Jenniffer

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