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Author Topic: Laptop battery to Desktop PC?  (Read 2408 times)

Abyss

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Laptop battery to Desktop PC?
« on: December 13, 2005, 03:48:15 PM »

Quick question, simple if you know it.  Can a laptop battery be used to power a desktop mobo and what not?  I figure that devices requiring different voltages other than 12 might be out of the question, but as far as the items that can run on 12v.

I suppose a similar but opposite approach would be: could you hook a desktop's PSU up to power a laptop? 
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blafrisch

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Re: Laptop battery to Desktop PC?
« Reply #1 on: December 13, 2005, 04:17:24 PM »

Typical laptop batteries are not 12V, so even that would be a challenge due to need for a conversion.

My laptop battery from a Dell Latitude 110L is 9.6V and from my old Vaio it's 19.2V
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Nate53085

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Re: Laptop battery to Desktop PC?
« Reply #2 on: December 13, 2005, 04:34:34 PM »

Your laptop wouldn't have nearly enough power.   Laptops are made to be low power.  Desktop...are not.  And as for the latop off of a desktop power supply...why?  Isn't that what your power brick is for?
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Firespark

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Re: Laptop battery to Desktop PC?
« Reply #3 on: December 13, 2005, 04:56:15 PM »

for the former part, simple answer is - no, and for the latter part, simple answer is - not really, no. <- abridged versions.
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viridius

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Re: Laptop battery to Desktop PC?
« Reply #4 on: December 13, 2005, 06:04:10 PM »

Using a laptop battery to power your desktop: for all intents and purposes, impossible.
Using a desktop PSU to power your laptop: while it might be possible to run the +12V line into the DC supply jack, I doubt it would work and do not recommend it.
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Abyss

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Re: Laptop battery to Desktop PC?
« Reply #5 on: December 13, 2005, 11:02:00 PM »

Thanks for the answer.  I'd guessed it, but was wondering if anyone saw any hope for it.  Let "it" remain unknown, I guess.
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BalefireX

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Re: Laptop battery to Desktop PC?
« Reply #6 on: December 13, 2005, 11:37:15 PM »

Maybe if you posed the actual question, someone could give you an answer, rather than guessing at exactly what you want to do.
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Firespark

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Re: Laptop battery to Desktop PC?
« Reply #7 on: December 14, 2005, 12:12:03 AM »

Yah, it would help. If your question isn't strictly hypothetical, it IS possible to run a desktop (especially a low-power one running on less than 100W) on a medium sized UPS for short periods of time, though you may have to hotwire the ups depending on the model. And I suppose it COULD be possible to find the power rails of a laptop and franken-wire it to a desktop psu, but the former is extremely innefficient and furthermore painful to move around, and the latter is downright pointless/inefficient/stupid, take your pick.
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