Is it possible to use a laptop charger in other laptop with different specifications?

Posted by poz2k4444 on Super User See other posts from Super User or by poz2k4444
Published on 2012-10-12T00:47:18Z Indexed on 2012/10/12 3:39 UTC
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Let's say I have my laptop charger that uses 19.5V and 3.9A and I want to use it in other laptop that has no charger but it needs just 19V and 3.16A, I've studied a little of electtronics and I know that the amperage doesn't affect because the computer will use just the necessary, but I'm not really sure about the voltage.

I read this post and I know the polarity is the same and the connector fits, but it doesn't say anything about voltage, I also know if the voltage of the charger were lower than the specification it'll not be a problem, but what about this little almost insignificant difference??

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