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Thread: whats the electrical output of 2 cords?

  1. #1 whats the electrical output of 2 cords? 
    Forum Cosmic Wizard icewendigo's Avatar
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    Since a typical 120v outlet has 2 sockets and can be used to plug 2 different electrical devices, If you wanted to recharge a battery (EV, computer, etc) faster, could an adapter be created that would use a dual cable ending up in 2 plugs? Would this allow more flow of electricity to recharge the battery faster?


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  3. #2 Re: whats the electrical output of 2 cords? 
    Administrator KALSTER's Avatar
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    Quote Originally Posted by icewendigo
    Since a typical 120v outlet has 2 sockets and can be used to plug 2 different electrical devices, If you wanted to recharge a battery (EV, computer, etc) faster, could an adapter be created that would use a dual cable ending up in 2 plugs? Would this allow more flow of electricity to recharge the battery faster?
    I think the rate of recharge has more to do with the electrochemical limitations of the battery than power supply.


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  4. #3  
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    It would have to be a pretty big battery to take more than 2000W (typical home outlet circuit) crammed down it's throat...

    But to the inferred question, two parallel plugs in the same outlet would give you a little less resistance in the line and thus just slightly more power at the business end, but I doubt that it would be noticeable. However parallel plugs in outlets which were on _different_ circuit breakers -- being careful to make sure they are on the same phase of the feed -- could allow one to draw more over all current...I've heard of bootstrap theater companies doing this to run their lighting systems...
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  5. #4  
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  6. #5  
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    using 2 plugs on the same breaker is totally useless, If you had a system that needed 2 separate plugs on separate breakers, then you are best to switch to a 240V outlet
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  7. #6  
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    I don't see a reason why would you need 2 plugs. You could easily do the same thing with only one plug, and the way you do it you just connect the wires in parallel in the actual device box. Since it is in a parallel mode the voltage is the same. In most devices, the power supply has the same design. It is just a transformer, a diode bridge and few capacitors (well they are more complex but that doesn't concern us). Transformer is used to change the voltage and a diode bridge is used to do a AC/DC conversion (most of the home devices use DC of course) . So if you want more voltage you can just use a bigger transformer. Back to your original question, voltage (and current) you use for charging a battery is defined by the battery itself, so you cannot just add more voltage. It is the same thing with a computer PS or any other device, depending on what voltage you need you build your PS accordingly, but you only use one plug. :-D

    P.S. I might of went a bit off-topic here but you get the point. And I apologize for my english, it's not my native language.
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