Find ID.4 battery SOH

GenerationGav said:

Hi all,
I'm considering buying a pre-reg ID.4 which is about a £4k saving on RRP of a brand new one.
Only thing is, it's their in-showroom model so I know it's likely been sat there with low, potentially 0% SOC for quite a while.
Is there any easy way of checking what the SOH of the batteries are, either myself or asking the dealer to do a report?

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In lieu of anything else, I would have a look around the showroom and forecourt at any other ID models they have in, get in and press the brake, you will see what SoC they maintain their cars at. I'd be fairly surprised if they were at 0% because anyone getting on the car would immediately see a bunch of errors fly up. I suspect it's actually more likely they keep them all at or close to 100% which isn't great either.
From what I've seen on YouTube videos, I don't think the OBD11 dongle outputs give a sensible indication of SoH anyway, the only way to know is to test it.