In December 2001, an American inventor Dean Kamen launched Segway PT- Personal Transporter, world’s first self-balancing battery operated electric human transporter. Segway was expected to revolutionize transportation. Its speed was 6–10 mi on a fully charged nickel-metal hydride (NiMH) battery with a recharge time of 4–6 hours & was priced at $4950. Despite this hefty price tag, there were bold predictions that Segway would be the fastest-growing company into a billion dolla