The car uses a 1.8-liter, 98-horsepower four-cylinder gasoline engine with an 80 hp (60 kW) electric motor charged on a Ni-MH battery.

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While the nickel metal hydride (Ni-MH) battery will remain the choice for Prius, Camry and Highlander hybrids, Toyota is doing some research and development with lithium ion batteries.

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