The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    AC adapter cord question

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by comper, Jan 22, 2008.

  1. comper

    comper Notebook Consultant

    Reputations:
    15
    Messages:
    207
    Likes Received:
    0
    Trophy Points:
    30
    Okay, the power adapter that comes with the G1S has a very short cord. Now, would I be able to just connect a different power cord to the brick as long as it has the same ratings (7A, 125V) and not have an issue? I know this sounds like a dumb question, but I don't want to mess up anything. To be specific, I'm talking about the removable cord that plugs directly into the wall/power supply and then connects to the power brick via the 3 pronged thing. Thanks.
     
  2. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

    Reputations:
    7,197
    Messages:
    28,841
    Likes Received:
    2,166
    Trophy Points:
    581
    Yes, you can use any mains power cord provided it has a plug which fits the PSU.

    The mains current rating is not significant. The lowest rating you can find is above the power used by the PSU (1A at 125V = 125W). A thinner cable, if you can find it, cuts down the travel weight.

    John
     
  3. comper

    comper Notebook Consultant

    Reputations:
    15
    Messages:
    207
    Likes Received:
    0
    Trophy Points:
    30
    Thanks for the response. Okay, I have another cord that is EXACTLY the same except for the fact that the one that came with my laptop is SPT-2 while the other one is SVT. The one that came with my laptop also has something that says "Green conductor for grounding only". So based on your response, the SVT cord is 100% fine to use instead of the SPT-2 one? Sorry for the redundancy, I just don't want anything to break. =\
     
  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

    Reputations:
    7,197
    Messages:
    28,841
    Likes Received:
    2,166
    Trophy Points:
    581
    Without seeing the two cords I'm not 100% certain what you have got. Do both cords have a 3 pin mains plug?

    Earthing is preferable, but not essential. There are plenty of places in the world where there is not earthing in the mains socket but the PSUs will still work fine.

    Sometimes the absence of earthing can mean that the DC voltage is not anchored to zero and can "float". In extreme situations this can cause a little tingling in the fingers if you touch exposed metal parts, but it is not dangerous (
    I read something about a new Dell having this problem due to having a 2-pin PSU connector).

    John
     
  5. comper

    comper Notebook Consultant

    Reputations:
    15
    Messages:
    207
    Likes Received:
    0
    Trophy Points:
    30
    Yeah, it's a 3 pin plug. The cords are by the same company, have the same model number and everything (printed on the cord itself), and the only difference is that after one of the model numbers it says SVT while the other is SPT-2. The SPT-2 one has the "green conductor.." message as well but everything else is identical.
     
  6. comper

    comper Notebook Consultant

    Reputations:
    15
    Messages:
    207
    Likes Received:
    0
    Trophy Points:
    30
    Ok here's what I mean.

    On the plastic part right by the 3 metal prongs that plug into the wall/power supply, both say "I-SHENG SP 305, E55943" (except the original plug has SP 305 A)

    On the other end that plugs into the power brick it says
    "E55943, 7A, 125V" and "I-SHENG IS034"

    Then along the cord itself they both have
    "I-SHENG (UL) E88265"
    then the two different parts, "SPT-2" on the original and "SVT" on the replacement
    then the same again on both "VW-1 18AWGX3C CSA LL81924" but this part again is followed by SPT2 on one and SVT on the other.
    Then the end is the same again "18awgx3c FT2"
    But then the "Green Conductor for grounding only" is found on only the original while the replacement ends with the part above.

    Sorry if this is really confusing. I'm guessing it is safe to use either one, though.
     
    Last edited by a moderator: Jan 29, 2015
  7. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

    Reputations:
    7,197
    Messages:
    28,841
    Likes Received:
    2,166
    Trophy Points:
    581
    I'm sure it is safe to use.

    I think the 18AWGx3C means 3 conductors of 18AWG (American Wire Gauge). I suspect they came off the production line at different times.

    John