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Will FM transmitter drain car battery?

  

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Regarding device for broadcasting music

If you leave the device plugged in while the car is not being used does it drainthe battery? 


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Is your cigarette lighter live when the ignition is turned off? If not then no need to even think about it.

If it stays on I would expect the gadget would eventually drain the battery but would take a while. Those things don't pull much current. I left one of mine on accidentally overnight in a vehicle with an always-on cig lighter and it made no difference in starting up in the morning.


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