Hello all,
I have a very very simple polarity question.
I got a device with a red and a dark grey (almost black cable), is it true that the red cable is + and the black - ?
another a little less simple question, imagine you have a typical battery charger, lets say a nokia charger, like that on the pic below:
**broken link removed**
its clear that the charger has + and -, I have no device to measure polarity, I dont even know how to do that. the question is: is the outside cord - and the inside one + ? or does it depend on the charger ? is there a "general rule" for such things ?
the reason I ask is that I have a NIMH battery pack which I need to charge, and I have a charger BUT unfortunately the little piece which comes between the charger and the battery pack is damaged and I dont know "what to connect to what".
Would it be right to connect the inside of the cord to the red cable and the outside of the cord to the black cable ?