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Old 26-09-2016, 13:08   #1
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12 VDC socket

I need a 12-VDC socket in my v-berth to use in inflating my air mattress. I have 12-VDC lamps already installed in the berth.

I was thinking of taking an old bulb and wiring it up to an outlet adapter. Then when I need to inflate the mattress I would simply replace the bulb with the custom outlet adapter and plug in my mattress pump.

I don't want to make a permanent connection as I probably won't be using the air mattress that often.

Anyone see a problem with this idea?
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Old 26-09-2016, 13:59   #2
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Re: 12 VDC socket

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Originally Posted by dmksails View Post
Anyone see a problem with this idea?
Your Lighting circuit is probably setup to handle 3-6 amps, and your air pump is probably pulling a lot more then that. Check the verify that the gauge of the cable is able to supply the demands of the pump, and that the fuse is large enough to supply the power.

It's probably not, since most lighting loads are fairly light, and an air compressor typically will have a large amperage draw.
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Old 26-09-2016, 15:03   #3
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Re: 12 VDC socket

The pump draws 1 amp.
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Old 27-09-2016, 09:47   #4
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Re: 12 VDC socket

No issues that I can see. Most lightbulbs are 10W, which draws just under 1A, so it's the same load as the bulb.
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