Laptop AC adapter specification

[iuse]

My AC adapter recently died. So I need to get a new one. A universal one costs 3 times as much as a specific one.

I found one, but the specifications is a bit off.

What I am looking for is a 1.5A (input). What I found has 1.8A (input). Is this going to be a problem? Is there a sign that it would not function with my laptop aside the not turning on part?

Besides the A, everything else is a match.

 

[edfair]

Use it. Just indicates that it may be a little less efficient that the old one, or it may mean nothing.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[wahnula]

I agree with edfair. Voltage is more important than amperage, plus .3 amp over is fine. There is usually gate circuitry that won't allow more than X volts or less than Y volts. Just make extra sure the + and - are in the same place as the old, usually + is the tip and - is the sleeve, but I have seen that reversed...use a VoltMeter or check the labeling on both devices.

Tony

 

[iuse]

Thanks for replying.

What are the + and - about? Is it that symbol beside the output? If so, it reads:

- ---Co--- +

The --- is a single line, the C is embracing the o.

 

[edfair]

Inner connector is positive, the shell is negative.
Your existing one should be the same, and the computer should have a similar symbol.

This is how you identify polarity on the small plugs, although yours is a little malformed. The circle should be in the center of the thing that looks like a "C".

Crossing polarity usually fries things.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[wahnula]

They've pretty much standardized to the negative sleeve/positive ring, I can't remember the last one I saw that was backward. Years ago, it was arbitrary, it made for lots of fun (and sometimes smoke). Some of the guitarists's "stomp boxes" had reversed polarity on the adapter, easily fixed by a snip, a couple strip & twists & some tape. That's where I learned to ALWAYS CHECK POLARITY!!!

Tony