Oggyo So far, it looks like checking is part of the procedure Determine if your device qualifies for the Pixel 6a Battery Performance Program, which implies signing in.
If you bought your device online from the G. store, I think your G. account and the phone IMEI are linked and this is how G. did notify 6a affected owners.
I tried the program, after a week and a half (from the 3 weeks they give themselves to answer) I got this:
Thank you for your patience as we reviewed your eligibility for the Pixel Battery Performance Program. Unfortunately, after careful review of your submission, your device has been determined ineligible for an appeasement. As a result, we have rejected your request.
I ask: Okay you won't give me anything, but does it mean my phone isn't among the potentially faulty ones, or just that you won't give me anything? (more politely phrased)
within 48h:
To help us with the verification process for your device, please help us with the following information:
Proof of Purchase: Please provide a copy of your device's proof of purchase.
Device Sign-in: Please ensure you are currently signed into the device you are registering with the Google account associated with it. This allows us to see the device's activity on your account.
Both of these details are essential for us to assist you further.
Thank you for your cooperation!
Which I won't follow up on. I'm at 200 battery cycles in nearly 3 years, so it ought to be fine for a couple more. I bought my 6a new but from an Amazon reseller, not sure if it matters.