“Do you have to leave it plugged in the cigarette lighter the whole time?”

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• The nuvi 57LM does have an internal battery, which charges whenever the device is connected to power. The maximum battery life is 2 hours. Brighter backlight, higher volume, and active navigation can all contribute to a faster-draining battery. The device is meant to be connected to vehicle power whenever possible during use. -MH

  Answered by GarminProductExpert 8 years ago

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• No, it has a rechargeable battery good for a few hours if fully charged.

  Answered by Johnboy 9 years ago

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