If you turned on the laptop with the underrated power pack, then it is to be
expected that the supply may burn up. However, you seem to imply that you
only used the power pack to recharge the battery. If this is the case, then
there is likely a more serious problem with the laptop.

Are you certain that the polarity and voltage on the power pack match your
laptop? Especially look at the polarity. If this is wrong, then the power
pack would have been shorted out, and indeed would burn up rather quickly.
It could also cause serious damage to your computer.

Good luck - give us some more info on this if you need more help.

Peter Shkabara
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760-451-1643

-----Original Message-----
I bought second hand laptop that had no power pack. I went and purchased a
4.5A universal power pack. Surprisingly the power pack melted five minutes
after connecting it to the laptop. My laptop is rated at 6.3A.
Could the power affect the power pack? My understanding is that a power pack
with a low rating might just take a little bi longer to recharge a battery.
Where does a laptop draw current when the power pack is connected? 

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