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 Message Boards » » hooking stuff to a car battery Page [1]  
raleighboy
All American
929 Posts
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Is it possible to wire a 12V DC device directly to a car battery for home use? Would I ground it to the battery's negative terminal or to something else? I had suitemates who managed to rig up a remote control door lock to their deadbolt but I don't remember if they used a car battery or some other power source.

3/24/2008 4:22:40 PM
Aficionado
Suspended
22518 Posts
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yes, neg. terminal

3/24/2008 4:24:23 PM
moron
All American
34144 Posts
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mind your current though.

3/24/2008 4:29:53 PM
sd2nc
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9963 Posts
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What are you hooking up?

3/24/2008 4:31:15 PM
Quinn
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16417 Posts
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you realize its cheaper to find a 12vdc wall wart than to monitor and charge an SLA battery correct?

3/24/2008 5:26:42 PM
 Message Boards » Tech Talk » hooking stuff to a car battery Page [1]  
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