Is my C-wire kit defective?

[Mocha4418]

I moved my working thermostat to a different apartment with very old wiring and many more windows. I don't know if I used to have a C-wire but I know I don't currently. The battery was draining so I got a Nest Power Connector. It isn't any better after wiring up to the very new air conditioner.

After a hot afternoon, battery is nearing 3.70v and connectivity is lost, as predicted. This morning, A/C idle, Voc is around 30v, Vin at 28, lin at 40mA.  Running, Vin drops to 7.4v, lin to 20mA.

How do I test that my Power Connector even worked? What pins to what pins, and the expected voltage? After seeing how easily the system is wired, I may just buy some 18/5 and fish the wire for the 10 or so feet it needs to rewire this mess and hope that solves my issue. I would like to know if I was sold a defective Power Connector though.

[Markjosephp]

Hello Mocha4418,

Thanks for reaching out. I understand that the installation of the Nest Power Connector can be confusing, but I'd be happy to take a look at it for you.

Could you please share with us a photo of your Nest Thermostat's wiring and how you installed your Nest Power Connector? This would help us identify the wiring configuration.

I'll look forward to your response.

Regards,
Mark

[Markjosephp]

Hey there,

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Thanks,

Mark

[Markjosephp]

Hi Mocha4418,

I'm checking in to make sure that you've seen my response. Please let us know if you have any additional questions or concerns before we close this thread in 24 hours. 

Regards,
Mark