I just bought these two batteries from Gammies this winter, and after only a couple weeks of use in our mobility scooter, the scooter itself broke down, so I was left with two new batteries and no scooter to use them. Don't be fooled by the dirt on top. We had a mechanic working on the scooter, and he left the cover off for a week, and that dirt landed there during that time.
These are the batteries: MK Battery MU-1 SLD G — 12V 31.6Ah Deep Cycle Gel Mobility Battery, Set of 2
Paid almost $350, but happy to take a loss at a third of the price to get them to someone who can use them