Battery

[Aprilwest]

My nest 3rd generation battery is bad. Won't even hold a charge for more than a day. My house keeps getting close to 90 due to it losing power while we are not home. I need help!! How do we find a replacement battery or is there a warranty on these?  Help!!

[Patrick_Caezza]

How old is you thermostat?

No, There is no replacement battery.

Does it have a C wire installed?

[Aprilwest]

It is a couple years old. No c wire 

[Patrick_Caezza]

You need to install a C wire. Check to see if there is a spare wire at the thermostat, if not you can use the Nest Power Connector.

The C wire is what keeps the thermostat powered up, without it the Nest will try and steal power using the fan or cooling terminals which doesn't always work very well.

[MelbaDT]

Hey folks, 

Thanks again for responding, Patrick_Caezza. 

Aprilwest, I know it's been a while but I wanted to ensure that everything is good here. Have you had the chance to add a C wire or a Nest Power Connector to your HVAC system and Nest thermostat as suggested above?

Best, 

Melba

[MelbaDT]

Hey Aprilwest, 

Checking back in — how's your thermostat now? Let us know if you still need our help by replying to this thread.

Best, 

Melba

[MelbaDT]

Hi, 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

Best, 

Melba