I would be worried if the car has a lot of miles on it, but just based on the mileage. I've had the '12 Prius v in the household sit for a very long time. It currently has about 15k miles. MPGs are still good from what I can tell. What kills batteries seems to be use/cycling. About 49K on the '13 C-MAX Energi, of which 30k is EV mode, what used to be about 21 miles range best is now down to about 18 at best.
From the test of the car in consideration I see 97% current battery charge, and -0.41 A current, meaning I believe it is currently charging, and not done yet. I would be concerned if it was 0.0 A, and the battery was at 97% charge. The variation between voltage of all the cells added together is 0.1 V less than the net voltage of the battery, I'm assuming "net" is measured at the anode (-) and cathode (+). I would be concerned if there was a significant discrepancy. Looks good to me from what I can see, unless it has a lot of miles on it. Yes, it doesn't note the capacity, but I'd go by the mileage.
Try to get a snap shot of the projected range on the display. Could be a helpful indicator....