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Old 05-25-2019, 04:20 PM
skidrow skidrow is offline
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Default 12v wall wart for car battery jumper

I have a car battery jumper and the wall wart (power plug) was cut (long story) so I have a wall plug that I want to adapt to the jumper- how do I tell which wire coming from the barrel plug (at the jumper) is the positive? I hope this is clear I know it would be easier to buy a new one (part # EEJP200M-2 AC Wall Charger) but times are really tight and I received this as a trade- thanks in advance
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Old 05-26-2019, 12:33 PM
Witsend Witsend is offline
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Like AC current I am not positive or negative but Typically the wider prong slot on s the wall outlet is wired to the Nuetral wire. I believe that is the white or light beige wire and the hot be black , and the center prong basically a green safety ground to the case . Check the outlet with a DVOM and the wire leads inside the charger jumper to be sure you know what is what.

https://www.youtube.com/watch?v=nql4Th4cNPY
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Old 05-26-2019, 03:40 PM
skidrow skidrow is offline
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got it- and it seems I misread the dogone thing- it's the out put plug I have- the INPUT plug is gone completely- now I guess I have to just get a new one- Thanks
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