If you live in the USA, buying a scooter or EUC from anyone but eWheels is likely a bad decision. Jason (eWheels) will support anything he sells beyond the limits of what the manufacturer will do. I have purchased a KS18L (first batch that had trolley problems), and a regular charger and fast charger for the KS18L. He took care of any first batch problems with the KS18l and shipped the chargers the same day as they were ordered. When "I" wrecked the anchors on the inner shell via a crash and damaged the trolley rails, he offered to send replacements free of charge although it was totally not his responsibility. Can't wait, want to save a few bucks go elsewhere .. good luck with that.