What to do if your cigar lighter is always on?

This allows you to hide all the wiring and avoid having the big ugly plug perpetually sticking out of the lighter outlet. Alternately, converting the 12V outlet to ignitions-witched is done similarly with an “add-a-circuit” but requires an added relay on the lighter outlet’s power lead instead of converting the 12V to USB.

Can a factory cigarette lighter be switched off?

Your factory lighter socket is not wired to do this. I do not like making modifications that change the factory wiring or can not be easily reversed, so this is my suggestion. Get a fuse tap. This will allow you to create a new circuit off an existing fuse. Use a switched, non essential circuit, like switched power for the radio.

Where does the Hot go in a Ford cigarette lighter?

And the HOT from the spare travels via 2 fuses and the red cable to power the cigarette. Don’t forget: It’s super important to get the polarity correct! In this diagram, I purposely REVERSED one of the pigtails (so I don’t need to solder any wires into the fuse hole).

What is an example of an always on cigarette lighter?

In this example, let’s say you have a SPARE unused Fuse slot, and the ALWAYS ON Cigarette Fuse slot.

Can a cigarette lighter be turned on and off with the ignition?

I was thinking about getting one of these: If you want the cigarette lighter socket to turn on and off with the ignition you could wire in a relay that is activated by having the key in the ACC position, like how it is on most vehicles.

How many fuses do you need for a cigarette lighter?

But don’t forget, if the cigarette lighter’s maximum allowed amperage is 20 amps, to use 20 amp fuses, not 30! It should work because the HOT from the cigarette connects to nothing and no longer powers anything constantly. And the HOT from the spare travels via 2 fuses and the red cable to power the cigarette.

What to do if your cigar lighter is always on?