laptop power cord interchangeability

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Cate Huisman

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Apr 5, 2008
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We have a half dozen laptop power cords lurking around our house, and it would be nice to just station some by appropriate chairs and tables for any passing laptop to plug into. We have four users in our house, each with his/her own current laptop plus a collection of dead/dying/being-transferred-from/brought-home-from-work laptops in various stages of functionality. The actual physical connectors all seem to fit the various laptops, but I'm not sure about the amps/watts/volts issue (all we did in high school physics was shoot rockets into the ceiling to see if they'd stick in the holes in the ceiling tiles, so I'm pretty ignorant in this area).

My latest latop (not purchased by choice; it was the natural consequence of one too many coffee/keyboard interactions) has Vista and a virtually toy battery that doesn't last very long. The power cord that came with it has a label that says "125V 7A." How can I determine which of our other power cords work with it? If I plug in the wrong power cord, will my laptop blow up in my lap? I don't mind experimenting, but I'd rather not ruin my new computer right away.
 
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