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Possible Duplicate:
Charging laptop with non-original charger
Is it safe to use a power supply with a different laptop?

I've recycled a acer laptop from a friend, but original power adapter is lost.

I'm planning to use a spare dell adapter.

Laptop requirements : 19v, 4.74A Dell adapter : 19.5v, 4.62A

I will not using the battery at all, so I guess that power consumption will be a bit fewer than specified.

Is there an electrical risk ? or fire risk ?

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marked as duplicate by Ƭᴇcʜιᴇ007, Simon Sheehan, 8088, TFM, ChrisF Dec 9 '12 at 19:15

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

I've seen some of them. Just wanted to be sure that more voltage IS REALLY forbidden. Guess answer is yes. – Obscur Moirage Dec 10 '12 at 9:33