Will my laptop be ok with this different laptop charger?

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Possible Duplicate:
Charging laptop with non-original charger
How can I tell if an AC adapter is compatible with my laptop?

So the original laptop charger broke and I switched to a charger from a laptop that I no longer use. The specifications from each are:

Original Input:AC 100-240V 1.5A 50-60Hz Output: DC 19V 3.42A

Other Charger Input: AC 100-240V 1.5A 50-60Hz Output: 20V 3.25A

Yes, the polarity is the same.

Also, the wattage has a difference of .02 from what I understand. Is wattage ever important, and more specifically, a wattage difference of that size.

Feel free to ask me any other questions about the chargers and I'll answer them to the best of my ability.

tidbits

Posted 2012-10-29T04:40:55.580

Reputation: 1

Question was closed 2012-10-29T07:13:42.480

Do none of the following and many, many more besides help? Charging laptop with non-original charger, Can a laptop run on a different brand charger?, charging laptop with a different adapter charger

– Karan – 2012-10-29T05:05:52.320

Is it possible to use a laptop charger in other laptop with different specifications?, Using a higher current charger on a laptop which requires a lower current, Can I use a charger with less Ampere than the original? – Karan – 2012-10-29T05:06:17.220

HP charger with Dell Laptop, Charger has fuse busted, could I use this other charger?, Can a 20V 4.51A power supply be used with a computer that requires a 19V 3.42A power supply? ... – Karan – 2012-10-29T05:06:44.473

Answers

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You're very close to the 5% tolerances power supplies are designed to. You may be asking the power supply for a little bit more power than it was designed to supply. Make sure it's not getting unusually hot.

David Schwartz

Posted 2012-10-29T04:40:55.580

Reputation: 58 310

It's not well within 5% - it's almost within 5%. The voltage is just over 5% more (5.26%). I don't know how much higher a voltage is typically safe, but a voltage too high (at some level) would blow components. (A voltage too low would be unlikely to cause to damage (it could get a low voltage from a dead battery and would have to tolerate it), but might not work, and a higher current should work (but see Selali Adobor's answer in https://superuser.com/questions/393076/hp-charger-with-dell-laptop?noredirect=1&lq=1)). The current is almost 5% lower, but that's unlikely to be a problem.

– John B. Lambe – 2018-09-20T18:07:35.060

Asked: 2012-10-29T04:40:55.580

Viewed: 1 980 times

Active: 2018-09-20T18:10:51.060