Can i use a laptop adapter from a different laptop

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I have an acer laptop adapter @ 19v , 3.42A and accroding to google i need an adapter for a hp dv9000 of 19v , 4.74A i guess this wo#t work as the amps are different, could i damage the laptop if i tried this?

 

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If you are looking for an adapter for an Acer, i would look for somewhere that supplies acer parts and search (or contact them) by part number.

Using an incorrect power adapter will either not allow the machine to function correctly, or worse case damage it - so make sure you get the correct one.

 

In theory if you get roughly the same wattage and the same pin style, the laptop will be powered.

As Boyce said, it'd be better for you to purchase a replacement.