I purchase Ultra Electric Scooter Velocity about one year back. After about 4, 000 kilo meters of usage, all four numbers Batteries have nearly exhausted and I am not able to use the Scooter for more than 10 kilometers after a full charge. The sticker on the Batteries, fitted by Ultra Motors, says these Batteries are 24 Ampere Hours, by the Chinese Manufacturers Print in the sides of the Batteries says that these are 20 Amper Hour Batteries. A set of for new Batteries costs Rs 8, 500.00. Therefore, it is very expensive to use these Electric Scooters.