Cigarette plug-in versus Aux Power point - Ford Powerstroke Diesel Forum
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Old 10-29-2009, 10:14 AM
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Cigarette plug-in versus Aux Power point

In Operator Manual, Ford says to NOT plug accessories into cigarette lighter, instead us the Auxiliary Power Point (12VDC).

Do you know why?
They seem to work the same for me.
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Old 10-29-2009, 03:17 PM
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if I had to guess the wires going to the lighter are a lighter gauge and rated only for the use of the lighter. Devices plugged into the auxilary power plug could use more amperage and the wires are probably heavier gauge wire to handle it. This is just a guess though. Other than that 12V is 12V so unless what ever you plug in pulls a ton of amperage it'll most likely work fine.
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Old 10-30-2009, 07:03 AM
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IIRC these work off the same fuse, so if that is the case, why should it matter?

NCH
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Old 10-30-2009, 12:21 PM
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Like I said the only thing I could think of is if the gauge of wire is heavier on one vs the other to handle a heavier load.
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Old 10-30-2009, 12:50 PM
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Maybe, but I would think the cigarette outlet would have bigger wire... the cig lighter draws quite a bit.

My guess? When you start using things other than the cigarette lighter, you could potentially damage the parts inside the cig plug. IE: the stuff that holds the lighter, and lets it automatically pop out.

All I know is my cigarette plug in is a little 'loose' compared to the auxiliary port. I use both to plug things in. GPS in aux and phone charger in cig.
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Old 10-30-2009, 12:54 PM
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Hmm, the ciggie lighter it self draws around 10 amps so maybe the plug style is a little different.
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Old 10-30-2009, 02:41 PM
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Some car chargers for phones and other devices are a little different design, and need the power port vs the cig adapter. I had a inverter that would work in the power port and not in the cig lighter. Also has a car charger for a cell phone that also need the power port.
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Old 10-30-2009, 02:49 PM
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I just plugged my power converter into the power port and no power....

But it works when plugged into the cig lighter....

May be something is wrong with the power port. I have to check with manual to see if perhaps a fuse is missing.
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Old 10-31-2009, 08:37 AM
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If the cig lighter gets used to light cigs, then it makes the contact points dirty. This causes a "not so good" connection. While this is fine for a metal lighter, putting a plastic plug into this port could cause overheating, and possible fires (don't ask how I found this out).

It involves a now useless mustang. Anyone need fresh burnt seats?
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Old 10-31-2009, 08:47 AM
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I hate having wires dangling all over my dash, so I "installed" a dual power point thing inside the center console and robbed the power for it from the power seat wire.
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