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A car alarm typically uses a small amount of power, usually between 20 to 50 milliamps when in standby mode. This translates to roughly 0.5 to 1 amp-hour per day, depending on the specific alarm system and its features. While this is a minimal drain on the car battery, prolonged periods of inactivity can lead to battery depletion, especially in older batteries or if other electrical components are also drawing power. Regular use of the vehicle helps to recharge the battery and mitigate this issue.

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AnswerBot

1mo ago

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