Adding 12V DC Socket Receptacle For iPhone

dwhite1031

Petty Officer 2nd Class
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Apr 14, 2009
Messages
130
I'm adding a socket receptacle (cigarette lighter type) for charging my iPhone while on the lake. I use the Navionics iPhone USA Lakes app & the Cabela's Recon Fish app, and they use a lot of the iPhone battery due to the map graphics and all.

The socket I purchased is marine grade and the 8" - and + leads are 14 AWG. I bought a small 20' roll each of red and black marine grade 14 AWG in order to lengthen the leads as needed to tie into the existing wires under the console. The package the wire came in reads "14 AWG 200 Watts 17 Amps Max."

I'll be adding a fuse in the circuit, but not sure what size I need with this receptacle to be safe and not exceed the rating and cause the wires to get hot.

Go with a 10 Amp or maybe a 15 Amp fuse?

Any suggestions or comments are greatly appreciated!

Thanks!
 

Bondo

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71,357
Re: Adding 12V DC Socket Receptacle For iPhone

Ayuh,.... Ya can use any fuse ya want, that's under 17 amps...
 

dwhite1031

Petty Officer 2nd Class
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Apr 14, 2009
Messages
130
Re: Adding 12V DC Socket Receptacle For iPhone

Thanks! I knew I didn't want to exceed the amp rating of the wire, but wasn't sure about a 10a vs 15a in case I needed that receptacle for something else in a pinch.
 

NYBo

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Oct 23, 2008
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7,107
Re: Adding 12V DC Socket Receptacle For iPhone

Chances are the socket is rated for 10 amps, so you would use a 10 amp or smaller fuse. You go by what has the lowest capacity in a circuit.
 

Fireman431

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Sep 17, 2007
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4,292
Re: Adding 12V DC Socket Receptacle For iPhone

The maximum draw the iPhone was designed for was 1 amp. When it gets closer to full charge, it draws even less. A 2 amp fuse would be more than enough, but it limits what else you can use that 12v socket for. If you are running 14g wire to the socket, it is actually rated to 15 amps. However, electrical code goes with 80% continuous duty, so 12 amps is where you are comfortable.

Sooo......as noted above...10 amps would be more than sufficient to what you are trying to accomplish as well as give you a little additional "coverage" for other 12v items.
 

MH Hawker

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Jul 13, 2011
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5,516
Re: Adding 12V DC Socket Receptacle For iPhone

dwhite,,,take a close look at the socket itself. Awhile back I was looking into those and I found the cig types were rated at 3 amps or less and whats known as a power socket is 5 to 7 amp, I am sure it will be fine, just something to look at. I wanted one heavy enough to run a air pump for toys and air mattresses and stuff. I ended up going with a 7 amp power socket.
 

Skeeterbait

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Feb 13, 2012
Messages
25
Re: Adding 12V DC Socket Receptacle For iPhone

Before you go to the trouble to set it up, think about what else you might want to use the socket for in the future. Charging the iPhone is negligable, but what if you one day want to run a deck light, spot light, crappie light, fan, DC coffee pot... just kidding bout the coffee pot, off the socket? Do you have an onboard charger or might you want to charge the battery back through the socket? Consider these things when sizing your wire, fuse, socket. Also remember that many devices have a fuse in their male connector for such sockets. So you can go larger on the fuse on the wiring to the socket for heavier draw devices but small sensitive devices will still be protected by the lower amp fuse in their male connector.
 
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