How much current does a car radio draw?

I went to a drive-in movie and used the radio to listen. My car was dead at the end of the movie and I needed a jumpstart. How much current does a car radio draw?

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Answer provided by
Bonnie Stinson
Answered on Jun 23, 2022
In most cases, how much current a car radio draws is approximately ten amps.
The amperage depends on how loud the volume is and how complicated your sound system is. For instance, if you have an upgraded sound system, you might draw much more power by playing the radio than someone with a simpler set up.
Another way to think about the electricity draw is as an hourly rate. The average power draw from a car radio is 0.02 kWh per hour. In simpler terms, that’s not much more power than a small LED light! Of course, a drive-in movie might be several hours long—and that could draw the battery down quite a bit, especially if you drive an older car.
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