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I have a 2012 Ford Fusion SE. My problem is that my dc power outlets (cigarette lighter) are on continuously. I was charging one of my cell phone battery packs and as I unplugged it I noticed that the light on my dc to USB adapter was still lit, meaning that power was still on the line from the battery pack.

I was wondering if I left that plugged in, will it compensate for the constant drain of something small like a radar detector?

Pᴀᴜʟsᴛᴇʀ2
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user13442
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1 Answers1

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No, the system has no ability to compensate for drain, however small, if the engine is not running. Therefore I would recommend removing anything from the power outlet if the car is parked up. Even the smallest drain (such as an interior light left on) will eventually drain the battery and prevent the car from starting.

Steve Matthews
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