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Step 2Get started!
First, open up the DC to DC charger. It is not uncommon for these to be held together with security screws, but that's not too big of a problem. You can buy security bits and drivers from most any local tool store (not hardware store) and they are usually pretty cheap.
Inside, we can see that there's not much too them. All we need here, though, are the positive and negative terminals. They are incredibly easy to find. Just follow the two wires coming from the shaft to the pcb. On this one, it's the blue wire (positive) and the black one (negative). Black is almost always negative, but if you are not sure, just look at where the wires lead to. The negative one will always attach to the springy pin thing at the top while the positives will go to the sides.
Inside, we can see that there's not much too them. All we need here, though, are the positive and negative terminals. They are incredibly easy to find. Just follow the two wires coming from the shaft to the pcb. On this one, it's the blue wire (positive) and the black one (negative). Black is almost always negative, but if you are not sure, just look at where the wires lead to. The negative one will always attach to the springy pin thing at the top while the positives will go to the sides.
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Aug 4, 2011. 1:13 PMtheo67
says:
Are you sure about the positive, I thought that the centre terminal was a positve. Perhaps on your polarity revering model it was around the other way.
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Dec 12, 2011. 4:47 AMsolaralternatives
says:
Best do verify with a cheap meter
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