Afterpartz 36V battery

Hello.There is a converted bike for sale locally that I was considering picking up for my first ebike. Familiar with bicycles but this would be my first outting to electric. The bike works and powers on but when I looked up the battery, Afterpartz 36v 10Ah, it looks like it hasn't been sold in a few years. The battery does charge but is this something that should be of concern if the price is right? It is $300 complete and I would be swapping everything over to my own frame. Thank you in advance

AH might not be lower than when new, at that price including the bike, go for it, you can buy a replacement batt off aliexpress takes 2 months to get here state side.

Thanks. I will hopefully pull the trigger this weekend