Which way around do you wire in a cigarette lighter (12v supply)? I don't want anything I plug in to run backwards! Is it +ve pin is the centre and -ve to the casing?

Yes

Yep You have it right

Centre +ve

Outer ? Case -ve

RD

Brilliant, thanks guys - and very responsive for early Friday morning. Well done, you go to the top of the class!

Here, you can have a smiley too!

[Edited on 23/11/07 by twybrow]

Bugger!

I thought it was Saturday

Oh well

quote:

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Originally posted by Macbeast
Bugger!

I thought it was Saturday

Oh well

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Make sure you wire it with at least 16Amp wire, and put a 15 Amp fuse in line as well.
The current (Amps) spec for a Lighter socket is quite high, so ensure the wiring all the way back to the battery is the right size (and fused).

You dont want a fire due to using too thinner wire with a too big a fuse

cigarette lighter on a locost?! thats quite a luxury for this car. adds weight, just take a lighter with you :p i'd rather have a radio.

The feeling is, I am unlikely to be able to take the car away for long trips, if I don't have the ability to charge a phone or TomTom etc. Don't worry - that is by far the most luxury my car is having. I traded cigarette lighter for windscreen - seemed like a good trade!

How do you tell whether your cigarette lighter is running backwards?

Neil

It cools rather than burns the cigarette.

quote:

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Originally posted by robertst
cigarette lighter on a locost?! thats quite a luxury for this car. adds weight, just take a lighter with you :p i'd rather have a radio.

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My socket isn't a lighter one, even though you could plug one in - it's got a flip-up cover that says '12v 10A' on it!

My trickly charger ( ) is usually plugged into it when the car's in the garage...

This discussion reminds me of a motorcyclist I saw in Austria - zooming along at 60-ish mph, smoking a pipe, and leaving occasional clouds of pipe smoke behind him!

[Edited on 23/11/07 by David Jenkins]

I have wired outlets such as this with only a 1 amp fuse - it's not intended for an output only for trickle charger which are genrally 150-300MA. As Bike engines/batteries are not meant to be drawn from without being powered.

My 2p