1. You may have noticed things look a little different around here - we've switched to a new platform (XenForo) and have some new forum styles and features. This how-to guide will help you find your way around. If you find anything that looks strange, post it in this thread.

Safe to use a different AC Adapter?

Discussion in 'Asus' started by dna_cyan, May 21, 2006.

Thread Status:
Not open for further replies.
  1. dna_cyan

    dna_cyan Notebook Enthusiast

    Reputations:
    0
    Messages:
    24
    Likes Received:
    0
    Trophy Points:
    5
    I have an Asus W6J, and am wondering if its safe to use a different AC Adapter.

    Specs for adapter are:

    Input: 100 - 240V ~ 1.5A 50-60 Hz
    Output: 19V == 4.74A



    I belive that the original power adapter that came my laptop has...
    Output: 19V == 3.something A.


    Would I harm my laptop using a different one other then the original?

    Thanks.
     
  2. sangnom

    sangnom Notebook Enthusiast

    Reputations:
    9
    Messages:
    33
    Likes Received:
    0
    Trophy Points:
    15
    If the adapter fits all that means is that its supplying a bit more peak power at the same voltage, shouldn't be any problems.
     
  3. SRD

    SRD Notebook Virtuoso

    Reputations:
    133
    Messages:
    2,089
    Likes Received:
    0
    Trophy Points:
    55
    Just make sure its the same voltage. if it is it should be ok.
     
  4. dna_cyan

    dna_cyan Notebook Enthusiast

    Reputations:
    0
    Messages:
    24
    Likes Received:
    0
    Trophy Points:
    5
    so I wouldnt burn anything out right? I will remove my battery just in case though.

    and yup, Outputs are both at 19V.

    I'm just worried about the different Amperage.
     
  5. Malia

    Malia Notebook Evangelist

    Reputations:
    273
    Messages:
    657
    Likes Received:
    0
    Trophy Points:
    30
    I charge my camera with my laptop AC adapter (until the power brick, then just switch the cord that goes into the laptop with the cord that fits the camera), have been doing it since I got the laptop, no probs.

    I also used the (complete) AC adapter from a Maxtor OneTouch drive when I lost my AC adapter for a super old IBM ThinkPad. It was wobbly since it was smaller than the original adapter, but it worked with no problems.

    Malia
     
  6. SRD

    SRD Notebook Virtuoso

    Reputations:
    133
    Messages:
    2,089
    Likes Received:
    0
    Trophy Points:
    55
    That isnt the smartest advice. YOu need to match the voltage plain and simple. yeah if it has less voltage it can work. But its not worth potential issues. I have seen 3 fires started in a office i used to work at because some guys on my tech team used different ac adapters for things and didnt check the specs.

    If you dont watch out you can A: fry your PC. B: fry the adapter or C: start a fire.
     
  7. dna_cyan

    dna_cyan Notebook Enthusiast

    Reputations:
    0
    Messages:
    24
    Likes Received:
    0
    Trophy Points:
    5

    Hmmm......so just to make sure. I called to check the specs of the original AC adapter, and the Output is 19V, 3.42A. which I guess means an output of 65 Watts.

    But the adapter I was planning on using is 19V, 4.74A, which gives 90Watt output.

    Is this still safe to use?

    Thanks.
     
  8. mystery

    mystery Notebook Consultant

    Reputations:
    6
    Messages:
    271
    Likes Received:
    0
    Trophy Points:
    30
    ^ Yes i belive it is. They have the same voltages but alternating currents. I think your computer will only suck out how much current it really needs. Having 4.74A instead of 3.42A probabily means your brick can provide more current to your computer if it needs it.

    Im not an engineer but i belive it should be ok. I'd wait for someone else to give u a professional response, but anyhow it won't explode immediately.
     
  9. ez2remember

    ez2remember Notebook Evangelist

    Reputations:
    28
    Messages:
    494
    Likes Received:
    0
    Trophy Points:
    30
    Yes mystery is right. I would just like to add thats how most "universal" power supply for notebooks work. They have a variable switch for voltage e.g. 15v, 16v, 17v, 18v, 19v etc. and rated at say 5amps. As long as you notebook doesn't require more than 5amps for those specific voltages then your fine.

    If it was the other way round then it may well explode or burn because it can't supply enough current. I have done this in "emergency" situations. i.e. just to charge the battery and nothing else. I know charging the battey wouldn't of consumed enough current for the psu to overload.
     
  10. SRD

    SRD Notebook Virtuoso

    Reputations:
    133
    Messages:
    2,089
    Likes Received:
    0
    Trophy Points:
    55
    Exactly right. The voltage should be matched. even if its higher wattage rating it will only provide that if the PC needed it.
     
Similar Threads: Safe different
Forum Title Date
Asus What programs can I delete safely Jan 26, 2014
Asus Is it safe to try the UX series yet? Oct 10, 2012
Asus A43S: Black screen at login (not in safe mode) Jan 1, 2012
Asus Caty 10.8 safe? Aug 29, 2010
Asus Is it safe for me to OverClock my UL30A from the Bios? Aug 27, 2010

Thread Status:
Not open for further replies.

Share This Page