Does a 0.01A AC/DC-adapter difference matter?

M

mas1

New Member
The AC-adapter for my asus is broken, but I have an old "universal" AC/DC-adapter that I used for an old laptop that also had a broken adapter. The plug fits and they both support 19V, but the universal adapter states a maximum output of 4.73A whereas my Asus adapter has an output of 4.74A.

How sensitive is the laptop (and/or the battery) to the 0.01A difference? Would it be risky to use my universal adapter?
 
current will be used as its needed, having more is not a problem, having less definately could....but .01 of a amp might not bother too much
 
If your battery is good, and the polarity is right. (make sure the positive and negative pole is the same with the two adapter.) it should be ok.
Cheers.
 
There should be no harm in doing it, even if it makes a difference the worst that can happen is your laptop takes a fraction longer to recharge. I say should because while I don't see a logical reason for there being any harm in doing so and I've various times done it without any negative results, I'm not very comfortable asserting something I'm not absolutely 100% certain of. There is a slight risk involved in using a power supply with smaller rated amps than the original, that is if you exceed the specified amp rating the power supply might go nuclear; however, you'll always use less power than the PSU is rated to handle (unless you have a habit of downloading movies, burning DVDs, playing games and charging the battery all at the same time, and even then I doubt 0.1 amps would matter).
 
You did say universal charger, does it big and thick like the original one? I think you need to check the rating on that charger make sure it is indeed 4,73amps. sometime the generic no name brand they will tell you anything and it doesn't give you the right rating just like the bad brand desktop PSU.
Just a thought.
 
They're both pretty big and thick, yeah. The weight is about the same too. Would it be safer to charge the computer while it is turned off?
That way no current would pass through the computer, only to the battery, which shouldn't require the full 4.74A output since the adapter was dimensioned to be able to both charge the battery and run the computer at the same time. Or am I wrong?
 
It is ok, I have used small rated adapter on my laptop. just make sure the battery is good and at least half charged.
cheers
 
You must log in or register to reply here.
Back
Top