That's the original battery - replacements have been D packs.. This is a B pack which went into early 2013 cars.
If it's a high pitched whining noise from the drive unit, that just means this is the original DU and needs to be replaced under warranty - it'll be covered. Ideally, you take it to a service center in advance of purchase and get it all checked out. Even more ideal: you bargain down the price bc of the noise