Solved Is it safe to use a laptop AC adapter with 220V power if ...

October 19, 2012 at 05:45:53
Specs: Windows 7
Is it safe to use a laptop AC adapter with 220V power if the AC cable is not rated for 220V?

The AC adapter supplied with my laptop is designed to accept voltage in the range of 100-240VAC at 50-60Hz, but the AC cable that plugs into the adapter unit itself is only rated to 125VAC 7.5A 2.5A. I know the adapter can accept 220V power, but is it safe to use this cable with the AC adapter to plug into a 220V socket?

Edit: The part in question is a 90W HP Smart AC Adapter. The laptop does not cause the AC adapter to draw more than about 80 watts from the socket (as measured with a Kill A Watt meter).

Edit 2: The amperage rating of the cable as marked on the attached label is 2.5A, not 7.5A.

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October 19, 2012 at 05:58:59
✔ Best Answer
Hi ???, from your other post it appears you have/had problems with both psu and/or battery.

My comment regarding volts and watts is the same for both.

If the cable does not get warm it is fine to use.

Good Luck - Keep us posted.

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October 19, 2012 at 08:26:11
Your username makes it sound as if you are the store selling batteries! I hope not as they sound like cowboys and anyone reading this thread (and your other one) would be well advised to avoid them.

My first thought on seeing your posts were that they were Spam; but I guess it would be a pretty inept spammer who rubbished the product!

As I said in the other thread, return the goods, get your money back and buy from a reputable dealer.

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October 19, 2012 at 16:18:44
Pedantically the cable should be designed for the higher voltage insulation. In the real world I would be surprised if it would cause any issues and agree with #1.

By the way, it's kilo Watt (kW), although I rather liked "Kill A Watt".

Always pop back and let us know the outcome - thanks

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