Laptop/PSU (mis)match?

[AKA_RA]

My friend has a laptop with no power cord and I have a power cord with no laptop. The hp power supply happens to fit the compaq laptop(i wonder why).

I'm not 100% on the values as I don't have it with me at the moment, but the laptop requires about 18.8v@3.5amps and the PSU cord is about 19v@4.3amps. Basically, they're different values and the laptops are both lower.

Will this fry if i plugged it in, or will the laptop only draw the power it needs?

[x88x]

iirc, the voltage matters more than the current does. Also, the PSU being rating higher than the laptop would be a cause for concern. That being said, if the values are as you posted, it might be fine; a 0.2V and 0.8A overage shouldn't kill it (read: if it does, not my fault ).

[nevermind1534]

more amps won't hurt. The DC-DC PSU in the laptop, itself just won't use the extra amperage. With the voltage being off by only .2V, I wouldn't worry about it.

[x88x]

more amps won't hurt. The DC-DC PSU in the laptop, itself just won't use the extra amperage.

ah, I thought it might be something like that, thanks for the explanation.

[AKA_RA]

cool, thats what i was figuring. now i just need to find the weird shaped 3 prong for the psu, heh.

my friend and i thank you for your help