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post #1 of 10
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I am wondering, Would it be possible to run a desktop PC off AA batteries??
With an intel processor.
    
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post #2 of 10
Technically, yes. Uninterruptible Power Supply basically are just batteries.


If you want to use your standard ATX PSU, you will have to build a circuit to emulate AC though. Otherwise, you will have to build Step-Up and Step-Down transformers, add beefy caps, and want to add low-voltage protection.
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Technically, yes. Uninterruptible Power Supply basically are just batteries.


If you want to use your standard ATX PSU, you will have to build a circuit to emulate AC though. Otherwise, you will have to build Step-Up and Step-Down transformers, add beefy caps, and want to add low-voltage protection.
How many AA batters would it take for instance, to run my computer for 45minutes Gaming.
    
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post #4 of 10
An Atom with onboard PSU, perhaps. Just connect 8 batteries in series so you've got 12V DC. Not sure how long it can power it, though. Maybe just a couple of seconds if that.
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post #5 of 10
Quote:
Originally Posted by jdcrispe95 View Post
How many AA batters would it take for instance, to run my computer for 45minutes Gaming.
How many watts does your computer use while gaming?
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by rui-no-onna View Post
How many watts does your computer use while gaming?
310 watts.
    
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post #7 of 10
Thats going to be a lot of AA batteries. You can however hook up 10 12V Car betteries, make it go through a regulator and into your PSU
post #8 of 10
Thread Starter 
Quote:
Originally Posted by CrazzyRussian View Post
Thats going to be a lot of AA batteries. You can however hook up 10 12V Car betteries, make it go through a regulator and into your PSU
I don't have any Car batteries and I have a whole box full of Hyundai AA battery's

Edit: i've done some calculation and I think it would take about 500 AA batterys to make a pentium 2 boot windows in 45seconds, then maybe open Internet explorer, then it will die.

I'll check back in the morning.
Edited by jdcrispe95 - 1/11/11 at 2:29pm
    
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post #9 of 10
Assuming you have 3 of these so you can power your gaming PC:
http://www.silentpcreview.com/forums...ic.php?t=55153
18~28V Vin (let's use 24V which is 16 AA batteries in series)

and 310W is the power consumption after factoring power supply inefficiency.

310W / 24V = 13A

AA alkaline battery ~ 2,700 mAh (theoretically, it can deliver 3,600 mA for 45 min but let's just use 2,700 mA since alkaline batteries have lower capacities when the current draw is high)

13A / 2.7A = 5

5 sets in parallel of 16 AA batteries in series so 80 AA batteries, theoretically. That's not counting voltage drop over time, etc. Actual needed would probably be a lot more than that.
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post #10 of 10
Thread Starter 
Quote:
Originally Posted by rui-no-onna View Post
Assuming you have 3 of these so you can power your gaming PC:
http://www.silentpcreview.com/forums...ic.php?t=55153
18~28V Vin (let's use 24V which is 16 AA batteries in series)

and 310W is the power consumption after factoring power supply inefficiency.

310W / 24V = 13A

AA alkaline battery ~ 2,700 mAh (theoretically, it can deliver 3,600 mA for 45 min but let's just use 2,700 mA since alkaline batteries have lower capacities when the current draw is high)

13A / 2.7A = 5

5 sets in parallel of 16 AA batteries in series so 80 AA batteries, theoretically. That's not counting voltage drop over time, etc. Actual needed would probably be a lot more than that.
I would love to see someone do it..
Run a PC from AA batteries.
Ahh well, ill just keep all these AA batteries for my camera/wireless mouse.
    
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