I think The Scooter Store might have been one of those outfits that was always advertising "free" scooters on TV -- not free to Medicare, of course -- and the Feds finally caught up with them for over-billing and for providing scooters to people who didn't really need them; perhaps they had some less-than-ethical physicians on the payroll too.
Try here for replacement batteries:
I've bought replacement batteries for uninterruptible power supplies from them. No problems so far.
Perce