So I just got a DC to AC power inverter but the guys from roadpro thought it would be smart to only add in the battery direct cables, obviously not making me able to use it while i am driving the car. Now since i like to do stuff myself, I got myself from my junk box a cigarette lighter plug with a cable but since on the unit it says the polarity matters I thought I would look it up online right? everything is online......well everything except what I need. So is there someone out there that has a diagram that shows the polarity on the cigarette outlet? OR has dealt with them before and knows what the polarity is?

Thank you very much.

 

black white & brown wire there.... I tapped into it for some lighting...

isn't white positive, black negative, brown ground?

 

i am not planning to open it, just want to know which of the sidewall and bottom are positive and which negative.....do you by any chance remember which ones where?