Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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.

share|improve this question

marked as duplicate by MaQleod, soandos, Daniel Beck Oct 29 '12 at 7:13

This question was marked as an exact duplicate of an existing question.

You're well within 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.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.