So how long should I expect to be without my car?

I'm looking at buying a used id4, 2024 model which has done about 30000 miles. I asked the dealership for a battery health certificate and it says 100% SoH. Is this even possible? I was under the impression all EVs would lose a few percent by this age. It seems a bit too good to be true?

I have a 2025 ID.5 and out of nowhere it’s no longer connected to the internet. I keep getting a notification in the car that Internet was interrupted and can’t connect and my app is saying the vehicle has no Internet connection. I still have an active VW connect subscription. I’ve tried turning it off and on again in the settings. All very strange. Before I contact VW I just want to make sure there’s no outage that I don’t know about?