12V DC outlets? - Page 2 - Fiberglass RV


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Old 01-26-2011, 01:53 PM   #15
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Yes, I did run a separate circuit for the 12v outlets. They are on a 12g stranded wire run and fused at 10 Amps. I did them this way so I could plug an inverter in and charge a laptop or two without worrying that I'd blow the fuse that runs the lights and water pump.

Since installing the 12v outlets I setup a dedicated inverter that powers the 120v AC outlets in the dinette and loft, so I all my 12v outlets get used for these days is charging a cell phone or camera battery. If I were to do the same install today, I'd put them on the same circuit with the lights.
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Old 01-28-2011, 10:43 PM   #16
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I have just one. I installed it next to the pump switch, since that's on the edge of the kitchen counter, which is smack-dab in the middle of the trailer. I can reach it from the bed and it's convenient for the kitchen, too.

The little one I found at Camping World has a mounting plate the same size as the pump switch, so it looks pretty good. I put it on the same DC circuit as the stovetop.

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Old 01-29-2011, 12:20 PM   #17
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How many do people have? There was only one in my Bigfoot 17. Since I am redoing almost all the electrical, along with the furniture, I can put in more than one easily. I'm thinking that car-charge adapters for many gadgets might be available, reducing or eliminating the need for inverter/generator/plug-in much of the time.
We have a 2009 Casita 17' Liberty Deluxe and had 3 - 12 Volt outlets and 2 - 110 volt outlets installed. Had the work done @ Camping World. They did an excellent job.

12 volts:
Orig 12v - near the TV cables
2nd 12v - opposite site from TV cables
3rd 12v - next to the outlet near the sink
4th 12v - on the Microwave cabinet

110 Volt:
Orig 110v - near TV cable, under the closet door, next to the sink
4th 110v - on the Microwave cabinet
5th 110v - opposite site from TV cables

The locations of the outlets work very well for us.
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Old 01-29-2011, 03:49 PM   #18
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Interesting. I don't think I'll need as many outlets as some people. I am using the transition to trailer living as an excuse to simplify things a little. No microwave, no variable temp electric tea kettle, no tv and no stereo.

In a space that small, I think I can satisfy all my audiovisual needs with my Macbook Pro and a couple of outboard micro drives. Since I plan to do a lot of boondocking, using the gas-powered stove/oven makes more sense to me than intense electric appliances, also conserving weight and space. The only thing I really needed to buy was a thermometer for making green tea.
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Old 02-01-2011, 11:17 PM   #19
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I put in two - West Marine stainless steel. Figured if I needed more I could use a splitter (pictured above) available at any auto parts store. I added both (not standard on Fiber Stream), one in the Kitchen counter and one on the other side of the trailer for convenience. Most used for charging cell phones or small inverter to run fan.
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Old 02-17-2011, 05:53 AM   #20
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I have none, so far.... since my Scamp doesn't really have a 12v system. But I plan on adding two of them. Most likely in the kitchen.

As an aside, is anyone else tired of the "cigarette lighter" socket? I wish car companies and cell phone companies would get together and come up with a new standard. The sockets take up too much space for what they do, and this also makes the plugs bulkier than they need to be. The format is just plain clunky. Most cell phone/iPod/etc chargers these days are actually 5 volts, as they are designed to be charged from a USB port. Imagine how much easier it would be to incorporate a few USB ports to the dash/console of your car than a few cigarette lighter outlets. I carry four or five chargers in my glove box, and I know that it would take up a lot less room if they were USB... especially if one cable would work for all of them.

In Europe, they have already mandated that all cell phones must be compatible with USB chargers.
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Old 02-17-2011, 11:10 AM   #21
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12 volt and 110 volt outlets

We have one 12 volt outlet installed below the seat on the rear driver side next to a 110 volt outlet. There are two other 110 volt outlets inside the trailer and one 110 volt GFCI outlet outside.

Finished trailer Feb 16 | Flickr - Photo Sharing!

Usually a battery monitor uses the 12 volt plug. It is a Equus 3721 Battery and Charging System Monitor.

Brian
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Old 02-17-2011, 03:36 PM   #22
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Originally Posted by mcbrew View Post
I have none, so far.... since my Scamp doesn't really have a 12v system. But I plan on adding two of them. Most likely in the kitchen.

As an aside, is anyone else tired of the "cigarette lighter" socket? I wish car companies and cell phone companies would get together and come up with a new standard. The sockets take up too much space for what they do, and this also makes the plugs bulkier than they need to be. The format is just plain clunky. Most cell phone/iPod/etc chargers these days are actually 5 volts, as they are designed to be charged from a USB port. Imagine how much easier it would be to incorporate a few USB ports to the dash/console of your car than a few cigarette lighter outlets. I carry four or five chargers in my glove box, and I know that it would take up a lot less room if they were USB... especially if one cable would work for all of them.

In Europe, they have already mandated that all cell phones must be compatible with USB chargers.
I think you'd have to get the cell phone manufacturers to agree on a standard first! We had mini DIN, and that's changing to micro DIN, (unless it's Apple), and none of those is rated to carry more than a couple amps. Also, they easily unplug, so unsuitable for our uses.

There is a smaller, latching 12v airline connector in use, and adaptors are available, maybe you've seen them under your airplane seat armrest?

12V Cabin Power Connector - Sporty's Pilot Shop

But I believe the future is in 24 or 48v power for lower transmission loss and compatibility with solar systems.

Regards,

Matt
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Old 02-17-2011, 04:07 PM   #23
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Quote:
Originally Posted by mcbrew View Post

As an aside, is anyone else tired of the "cigarette lighter" socket?
Yup. Not only are they "clunky" but vibration tends to make the plug creep out of the socket.

Quote:
Originally Posted by mcbrew View Post
Most cell phone/iPod/etc chargers these days are actually 5 volts, as they are designed to be charged from a USB port. Imagine how much easier it would be to incorporate a few USB ports to the dash/console of your car than a few cigarette lighter outlets.
My new Sienna came with a USB port right beside the clunky cigarette lighter socket.

Ron
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Old 02-19-2011, 10:17 PM   #24
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Matt, cell phone companies have already agreed... but only in Europe. Not here! They still like for everyone to spend another $30 on a unique charging cord. I have to admit, though... most of my mobile appliances will charge from a USB slot: iPhone, iPad (as long as it is 2 amps), iPod, Garmin GPS, Garmin handheld GPS, and Motorola bluetooth speakerphone. My car does not have a USB port, but the 2011 models do. What I like is the cigarette lighter plug that just has two USB ports on the back of it. Have to be a little choosy, though... as most of them only put out 1 amp and will not quick charge the iPad. Oddly, the iPod port on my car will charge the iPod, but not the iPhone or iPad. Apple (in their infinite wisdom) changed the pin for charging.
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Old 02-19-2011, 10:49 PM   #25
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Peter,
I always steal as many ideas from your work as I can. So, before I steal another one, are these on a separate, fused circuit? If so, what size wire did you run?
Ron
My thoughts (when I do this) is to go with a seperate fused (10amp) line
useing 12 gauge automotive wire. Remember some of these runs are going to be very long and we need to be concerned about voltage drop.

my 2 cents
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Old 02-20-2011, 06:19 AM   #26
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I want one on the exterior, door side rear. Want to plug patio lights in! One more thing to add to the "someday modifications" list. Sigh.
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Old 02-20-2011, 05:12 PM   #27
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My Trillium didn't come with any 12 volt outlets. I added 2 power outlets w/ covers: one in the front left counter extension, and one facing to the rear in the cabinet over the sink. Then I added 2 each 30 amp power pole outlets next to them. All of my Ham gear connects using power poles. I also have a 75 amp power pole connector on my battery box so I can tap 12 volt power outside if i want it. Course I have a 30 amp and a 75 amp power pole connector in the bed of my truck just inside the tailgate.

It is safe to say that I have options when it comes to power sources.

YMMV
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Old 02-27-2011, 01:08 PM   #28
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I added a marine-grade DC outlet to the access panel area behind the refrigerator. In hot weather I plug in a small soft-bladed fan to help exhaust hot air away from the frig while keeping the fan out of the weather and the vented door closed. (Minimizes chance of theft and I can leave campsite without worry of rain, however the outlet also has a flat-blade fuse in the line.) Can easily access the outlet for other uses. It takes careful placement to keep the fan blades from striking something so would like to make a flat fan out of a couple of computer fans. Could someone provide instructions? Thanks!
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