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    Q about power cables for Laptops

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by ScyKic, Mar 25, 2010.

  1. ScyKic

    ScyKic Notebook Guru

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    Hi all, thanks for reading.

    I have a Q about power cables for laptops. I'm talking about the part that has the wall socket/plug and goes into the wall. Not the part with the adapter/charger thingy and goes into the laptop (I know this is dangerous coz wattage can be different).

    My Q is, can this cable be exchangable without doing damage or be dangerous?

    Since I don't see any adapters or stuff on it, does it matter much if I switch my Asus one to my Sony, coz it's longer.

    Thanks all in advance for any help.
     
  2. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    Yes, that's fine.
     
  3. ScyKic

    ScyKic Notebook Guru

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    So no danger of overvolting the cable? or overloading something into the laptop?

    Coz I don't wanna set anything on fire ofc ^_^

    Thanks
     
  4. Trottel

    Trottel Notebook Virtuoso

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    No, no way.
     
  5. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    There is no danger at all, ScyKic. The AC cord can take far, far more than what the notebook's PSU can draw.
     
  6. chunlianghere

    chunlianghere Notebook Consultant

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    no danger..dont worry.

    its even interchangeable wit other devices wit the same socket.
     
  7. ScyKic

    ScyKic Notebook Guru

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    Thanks for the replies, so I guess it's safe to use my Asus's longer cord for my Sony. Thanks guys.
     
  8. ScyKic

    ScyKic Notebook Guru

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    Ok I'm back, got another Q with these 2 cables. I hope someone can help me with.
    The 2 cords have 2.5A 250V at the (goes into the adapter) end. So that's the same.

    But the other (goes into the wall) socket end, one is 7.5A 250V and the other is 10A 250V.
    I roughly understand that means, the Voltage is the same. But the "A" I'm not sure what that means, I'm thinking maybe (Amps).

    My Q is, does this (7.5A and 10A) affect anything?
    Is the laptop gonna overload on the charge or something, because one cable is higher.

    Thanks all in advance for any expertise :)
    And sorry I'm back asking again.
     
  9. FrankTabletuser

    FrankTabletuser Notebook Evangelist

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    Those are the maximum ratings the cable supports. (A = Ampere, the current, V = Voltage) To charge and power your laptop the power adapter will draw max 1A @ 250V.
    So not even close to the maximum the cable supports. So your both cables support a much higher load, thus there's no risk in swapping them.

    No, your laptop won't overheat, overload, whatever.
     
  10. PapaSmurf69

    PapaSmurf69 Notebook Consultant

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    I imagine the longer one has the 7.5A rating and the shorter one is the 10A rated one. That's normal for different lengths as a longer cable has more loss. But as long as the cable is rated for more than the device uses it will be fine as the others have stated.
     
  11. ScyKic

    ScyKic Notebook Guru

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    Hi thanks a lot for the replies!

    Here's some more info about everything. *Not that I know what any of it means :)
    I checked the (Input) of the adapters, both Sony and Asus adapters are: 100-240V ~1.5A 50-60Hz
    (Output) is slightly different but roughly both: 19 - 19.5V =~ 4.7 - 4.74A.
    *I'm not interchanging adapters, that's dangerous.

    And PapaSmurf, really surprising is the Asus cord (longer) is the 10A cord, it's about 1.5metres. Lol! while cheapo Sony gave me the 7.5A, 50cm cord. :D

    So seeing the adapter info, does everything look ok? (to switch cords)

    Thanks again!
     
  12. PapaSmurf69

    PapaSmurf69 Notebook Consultant

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    That probably means that the Asus cord uses a larger gauge wire (lower number gauge) which allows it to handle larger amounts of currant. That isn't unusual.
     
  13. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    That's your PSU's DC output, not the AC input. Your AC cable has nothing to do with DC output. Like we said from the very beginning of this thread, you have nothing to worry about.
     
  14. BruBoo

    BruBoo Notebook Evangelist

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    You say the Mains Input Current the adapter needs is under 2 amps. Any cable with a rating of 2A or more (I have rarely or never seen less btw) will be fine.

    With interchangeable 2 and 3 pin mains plugs the designers spend a lot of time stressing over physical vs electrical compatability . . so you don't have to :)
     
  15. grimmy311

    grimmy311 Notebook Enthusiast

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    Replacing a cable from the wall to the brick is usually never a big deal. Now if you need to replace the power brick, thats another story, but it sounds like you'll be fine (=
     
  16. ScyKic

    ScyKic Notebook Guru

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    Thanks all for the replies! :)