mikko said:
Do you mean you need new batteries for it?
Or do you want to know what kind are in it now?
Or?
The best way to figure out what's in it or what it would need as a replacement is to open up the battery compartment and look inside. Take pics of the labels on the battery and post them up here, and we can help you figure out what you could replace it with.
Which parts? Are there specific ones that have failed?
Tires, tubes, light bulbs, etc are probably standard for scooters of that size, so wherever you have local parts like that available; just take the old ones into the shop and they can figure out what they have that fits.
Controller, dc-dc, etc, can probably be replaced with generics if they fail, but would likely require figuring out what wires do what and go where on the old ones vs the new ones. Would also require figuring out the voltage and current limit of the controller/etc.; it is probably marked on it.
Motor can probably be replaced with any other generic scooter motor of the same axle width and hub/rim size, as long as it is wound for the same speed (or whatever speed you're after, if different), and capable of the wattage you need.
Body panels, etc., you'd probably have to get off another scooter of the same model/year, unless the maker of that one also made others with identical panels/etc. As noted by Dauntless, it's not unlikely that many of these are the same, with just different stickers on them for the "brand".