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Electric bicycles classifications, history & development 

Electric Vehicles India

Nickel-cadmium battery(NiCd). Nickel-metal hydride battery (NiMH or Ni–MH). Lithium-ion polymer battery. Lithium-ion polymer battery. The hub may also be pedal driven so the function of the pedals is not changed. Types of electrical energy sources. Lead-acid battery. Lithium-ion battery.