2019 I-MAX T-3 Electric Scooter - Black I-MAX model T3 is a small compact 36V/10Ah electric folding scooter with a top speed of about 18 MPH. The range is anywhere from 15- 25 miles depending on how much the rider weighs and the terrain. Hilly terrain and bumpy sidewalks will be on the lower end of the spectrum while flat and smooth terrain will maximize the efficiency and give a longer distance. 1 Year Warranty