USA laptop power supply


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Old 09-18-14, 04:32 PM
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USA laptop power supply

In the UK lap top power supplies are normally switch mode devices rated 100 - 240 volt 50/60 Hz so we can use our lap top in USA. Is this also true in USA or do some lap top power supplies not cope with 230 v at 50 Hz.
 
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Old 09-18-14, 05:34 PM
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All of the laptops I've seen, Dell, HP, Lenovo, etc., all have the same specs as you indicated on the power supply. Odds are it's just the cord that is different.

It's been like that for a while. I have a 16 year old Pentium 233 IBM Thinkpad that has the same specs on the power supply, 100-240 volt, 50/60 hz,
 
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Old 09-18-14, 06:40 PM
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I agree most of the time it is just the cord unlike other things that you have to use a switch for like desktop power supplies for instance that you have to switch and also change the plug.
 
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Old 09-19-14, 02:47 AM
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I travel a lot and most modern electronic devices cope with the various voltages and frequencies. The issue is just getting the plug to physically fit into the socket which is handled with a different cord or an adapter plug. Still, it never hurts to read the fine print on the appliance to confirm that it can handle the different flavors of electricity. The items to watch out for are "dumb" appliances like irons, hair dryers, curling irons, immersion heaters, tea kettles...
 
 

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