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    schrammd's Avatar
    schrammd Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 27, 2015, 04:57 PM
    Heating element help?
    I have two heating coils from car cigarette lighters and no batteries I have found will make them glow red hot which is what I need can you please help me with this?
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
    Internet Research Expert
    		  
    #2

    Aug 28, 2015, 11:55 AM
    Is this some sort of homework or what is it you are trying to accomplish ?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Aug 29, 2015, 08:21 AM
    Flashlight batteries won't work, you need something that can produce Amperage, a car battery, perhaps a smaller tractor battery.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #4

    Aug 29, 2015, 09:23 AM
    You aren't going to get them to glow red hot WITHOUT batteries or something that can push a LOT of current at the needed voltage.

    YOU could fire up a propane torch...and aim it at the coils and they will get red and even orange hot....but I don't know what that would accomplish.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #5

    Aug 31, 2015, 06:54 AM
    I agree with the others that you need a 12-volt battery - you can't use ordinary flashlight batteries as the power heating up the cigarette lighter is equal to the voltage squared. And secondly, the power supply must be capable of pushing a fair amount of current - about one amp, so a large battery is required. The suggestion by ma0641 is right on - a garden tractor battery would be perfect, and is easily recharged using a standard car battery charger. You may find that a 12-volt lantern battery would work as well - it's much lighter but these are generally not rechargable, and would run out energy much quicker.
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