Cigarette lighter tyre pump

[MikeB_374236518]

I have a tyre pump which uses the cigarette lighter. I bought an extension lead and want to attach a plug so that I can use it from the caravan. I have the plug which is labeled 'L' and 'N'. I know which of the two cables is connected to the center of the cigarette lighter.

My question is, is the center of the cigarette lighter the live connection? Also I assume with DC that it is important to connect the correct way round.

 

[antrimboy]

Yes, you're quite correct - the centre of the connection is the live/positive.

 

[MikeB_374236518]

Thanks Eddie, that was quick, only had time to get a cup of coffee and compose my question on batteries.