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Old 12-20-2008, 03:36 PM   #1
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Question Power supply

Will a battery charger work as a 12v power supply
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Old 12-20-2008, 03:44 PM   #2
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Quote:
Originally Posted by blacksmith View Post
Will a battery charger work as a 12v power supply
Don't do it. You could put the charger on a battery and then do it.

Don't ask me to tell you exactly why, I can't remember but I am sure JRH or someone wil post up and say why.

Cheapest thing to do is convert a computer power supply. I will look for the link I used to convert the one I have. You need to add a small resistor to make most of them turn on.

Last edited by Scattman; 12-20-2008 at 03:47 PM.
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Old 12-20-2008, 03:50 PM   #3
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A cheap battery booster (jump pack) works well.
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Old 12-20-2008, 03:52 PM   #4
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I think JRH said hooking directly to the charger gives you unregulted power, but it its hooked to a battery, the battery will act as a regulator.
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Old 12-20-2008, 06:54 PM   #5
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A jump box is dirty power and will not give you a good outcome.
I use a pc power supply, Works like a charm
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Old 12-20-2008, 08:00 PM   #6
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HEY Thanks for the feed back Ill go to Radio Shack I dont want to screw anything up
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Old 12-20-2008, 08:05 PM   #7
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I got my 25 amp switching power supply from Radio Shack, and it's got more then enough power to charge any battery I got. Also it is ready to go right out of the box
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Old 12-20-2008, 08:21 PM   #8
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Will my car batteries and a inverter work?
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Old 12-20-2008, 08:24 PM   #9
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Quote:
Originally Posted by 47willysbuggy View Post
Will my car batteries and a inverter work?
That is backwards from what he is trying to do. He is wanting 12v to run a DC charger, not 110v for an AC charger.

If you are wanting to know if you can run a 110v charger off of a 12v batt and an inverter then yes it will work.

Last edited by Scattman; 12-20-2008 at 08:27 PM.
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Old 12-21-2008, 04:25 PM   #10
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Originally Posted by autumnsummers1 View Post
A jump box is dirty power and will not give you a good outcome.
I use a pc power supply, Works like a charm
True, the power is somewhat "dirty", but it was FREE, and has been working fine for 3+ yrs. The chargers circuit cleans the output so the charger takes the ill effects of the dirtiness. Claims are the dirty power decreases the life of the component, but like I said, 3+yrs...
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Old 12-22-2008, 08:12 AM   #11
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http://cgi.ebay.com/DuraComm-Lp-14n-...3A1%7C294%3A50

I picked up one of these and just took the power pigtail (SAE end) and routed it to the front panel to a pair of terminals from Radio Shack. Total cost was $35 including the ebay purchase and the Radio Shack part. Took only about 15 minutes to re-wire. I can now run BOTH of my Venom Pro Chargers at 5amps, and all goes smoothly. A modest Power Supply from Tiger Direct still costs $40 and then you have to buy resistors and mod it. This eBay purchase was a SWEET find. These retail all over the net from $60 - $130....so under $30 on ebay is not bad. It is working well for me.

Radio Shack Binding Post (Chassis Mount)
http://www.radioshack.com/product/in...ductId=2102838

Last edited by xirtic; 12-22-2008 at 08:18 AM. Reason: Added Radio Shack Part Link
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