Well, you don't have to do anything. However, you'll significantly increase your range if you plug in the Chevy Volt when you can. Let's say you have a 40 mile round-trip commute. When you get home, you plug the Volt into your regular 120-volt outlet and let it recharge for the night. If that's all you do – and, we assume, you go easy on the accelerator – your gasoline engine would rarely turn on. By contrast, a Toyota Prius doesn't get plugged in, but it relies on its gasoline engine to produce nearly all of the electricity stored in the batteries.
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