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In page Battery electric vehicle:

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China has experienced an explosive growth of sales of non-assisted e-bikes including the scooter type, with annual sales jumping from 56,000 units in 1998 to over 21 million in 2008,[4] and reaching an estimated 120 million e-bikes on the road in early 2010. China is the world's leading manufacturer of e-bikes, with 22.2 million units produced in 2009.[citation needed]