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500 posts

Ultimate Geek
+1 received by user: 85


Topic # 148740 29-Jun-2014 15:16
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Hey guys,

Say I have a spare Dell Laptop Power SUpply that says: Output 19.5V, 3.34A. Would it be safe to use this with an HP laptop whose Power Supply says Output 19.5V, 4.62A ?

I just want to know if I could use that second PS as a backup?



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3095 posts

Uber Geek
+1 received by user: 510


  Reply # 1076578 29-Jun-2014 15:58
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Both power supplies output 19.5 volts which is good.
But the old Dell power supply only puts out 3 amps, where as the hp puts out more.

The dell cannot put out enough power to supply the needs of the HP - it will probably work for charging the battery while the laptop is switched off but will overheat and burn out if you were to use it for anything more.

Also some dells and hp power supplies have genuine parts authentication chips in them and will not work when being used with a different brand of laptop.

Ray Taylor
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500 posts

Ultimate Geek
+1 received by user: 85


  Reply # 1076579 29-Jun-2014 15:59
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Thanks a lot for that.

Will probably refrain from doing that, then.


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