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Question: My power cable for sony laptop is broken, trying to find a new one need help with the voltage / amp side of it?

(Posted by: youwish on 2010-01-16 05:52:29)

I have a sony vaio VGN N31S/ W the power cable had VGP- AC1V20 input - 100- 240v 13A 50- 60Hz Output 19.5v 3.9A i found this on ebay - 4 SONY VAIO VGN- N31S/ W BATTERY POWER CHARGER 19.5V 4.7A could this work? or is the amp too high? its been a while since i have done physics http:/ / cgi.ebay.co.uk/ ws/ eBayISAPI.dll?ViewItem &item=120366612558 &ru=http %3A %2F %2Fshop.ebay.co.uk %3A80 %2Fi.html %3F_nkw %3D120366612558 %26_in_kw %3D1 %26_ex_kw %3D %26_sacat %3DSee- All- Categories %26_okw %3D120366612558 %26_oexkw %3D %26_udlo %3D %26_udhi %3D %26_ftrt %3D901 %26_ftrv %3D1 %26_sabdlo %3D %26_sabdhi %3D %26_samilow %3D %26_samihi %3D %26_sadis %3D200 %26_fpos %3DPostcode %26LH_SALE_CURRENCY %3D0 %26_sop %3D12 %26_dmd %3D1 %26_ipg %3D50 %26_fvi %3D1 &_rdc=1 http:/ / cgi.ebay.co.uk/ 4- SONY- VAIO- VGN- N31S- W- BATTERY- POWER- CHARGER- 19- 5V- 4- 7A_W0 QQitemZ130347494713 QQcmdZViewItem QQptZUK_Computing_LaptopAccess_RL?hash=item1e5950ed39 im on a tight budget which is why i am on ebay anyone who can help ? i live on the isle of skye, north west of scotland there is like 1 computer shop the guy doesnt know what he talking about he charges crazy money for something you could do yourself and usually breaks again after a month or 2 i cant seem to find any with that voltage which is why i came on here

Posted by: uk_staffie on 2010-01-16, 06:14:54

That would be fine, as the laptop will only pull as much current (Amps) as it needs, As long as the Voltage is the same, and the Amps are the same or more than the original PSU all will be good, if not better.

Posted by: Another Me on 2010-01-16, 05:56:44

The Amp rating is what it is able to supply, the volts is what it supplies. You should theoretically be OK with that one, but personally I would try to buy one that's an exact match in volts and amps.

Posted by: Ron75 on 2010-01-16, 06:02:36

That one would most likely be ok, but as stated above, I would get one with an exact match even if I had to pay more for it. A power cord won't cost as much as a new computer if you get the wrong one and it does cause damage. If you live near any computer stores take the old one in and talk to them and they should be able to come up with one that has the correct cord. Otherwise I would contact Sony. Ron

Posted by: tomol on 2010-01-16, 11:25:25

Uk_staff is dead right. The equipment will draw the current that it requires. The higher amps. rating gives a slight safety margin. What you don't want is a smaller rating as this would overwork the output transformer and it would overheat with fatal results.