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05-08-2017, 03:25 PM
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#1
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Wire Gauge for 12V Sockets
I'm going to be installing some 12V sockets in my RV like these - https://www.amazon.com/Automotive-Ex.../dp/B00PXAMYTC. These will support up to a 15A draw.
If I had just one of these on a circuit what gauge of wire should I use?
If I had two of these on a circuit what gauge of wire should I use?
Thanks!
__________________
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05-08-2017, 10:18 PM
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#2
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Senior Member
Join Date: Sep 2014
Location: Sierra Vista
Posts: 314
Arizona
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2012 Dutchmen Denali 289RK
2013 Ford F250 Lariat - 6.7L Powerstroke Diesel
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05-09-2017, 04:19 AM
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#3
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Thanks Occupant5143,
Awesome resource. That chart answers the question. Thanks!
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05-09-2017, 03:32 PM
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#4
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Senior Member
Join Date: Dec 2011
Location: Helena, MT
Posts: 606
Montana
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Are you wiring your outlets all the way to the battery or tying them in somewhere else? If tying in somewhere else, you'll be limited by the smallest gauge between the outlets and the power source. I'd go with 12 gauge minimum if you can get a run all the way to the power source. When I plug my laptop 12V charger into the factory installed 12V socket, it pulls too many amps and the charger surges on and off due to voltage drop from too skinny of wiring. But when I plug it into the 12V power sockets I installed with 12 gauge wire, it runs fine.
__________________
2012 Aspen Trail 2710BH | 470 watts of solar on the roof | 2x6V GC batteries | 1500 watt PSW inverter | Micro Air on A/C | so far strictly boondocking
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05-09-2017, 03:47 PM
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#5
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Thanks ewarnerusa,
I want circuits from the sockets to the power distribution panel but tying into an existing light/stereo circuit may be the only option in some cases. Not for sure what the gauge is there. For heavier amperage loads I should be able to tie a couple sockets into the power distribution panel below the fridge. If I see voltage drops when I tie into the power distribution panel I'll try running a line directly to the battery bank. I wouldn't be surprised if there is a problem after seeing how they wired in the water heater (attached image)
BTW, where did you find a 12V notebook charger? I haven't been able to find one for my DELL notebook.
Thanks!
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05-09-2017, 08:57 PM
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#6
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Site Team
Join Date: Jun 2014
Location: Sprung Leak
Posts: 3,157
North Carolina
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My Dell came with one!
Which Dell do you have? I have a Lattitude E6430, I have the cigarette lighter style cord for it. Parts-People.com is a good place for Dell parts.
Aaron
__________________
There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
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05-09-2017, 10:03 PM
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#7
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Senior Member
Join Date: Dec 2011
Location: Helena, MT
Posts: 606
Montana
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__________________
2012 Aspen Trail 2710BH | 470 watts of solar on the roof | 2x6V GC batteries | 1500 watt PSW inverter | Micro Air on A/C | so far strictly boondocking
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05-10-2017, 06:00 PM
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#8
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Thanks wahoonc,
I have an Inspiron 7559. It uses a quad core (8 hyper-threaded cores) processor, has 4K video, and a 130W power brick. I found an adapter at https://www.parts-people.com/index.p...n=item&id=5149 but it is only 65W and does not have my model in the compatible list.
I use this guy for heavy lifting - image processing and running virtual machines. Now that I've become more cognizant of the power required for the 7559 I might bring along another low power Toshiba net book I have. Biggest problem with it is the soldered on 2GB of RAM and 32GB SSD. Windows 10 with updates consumes almost all of the RAM and SSD. Maybe I'll install a light variant of LINUX and use the Toshiba for casual web browsing.
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05-10-2017, 06:06 PM
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#9
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Thanks ewarnerusa,
That one unfortunately doesn't work either for my inspiron 7559. As the 7559 uses so much power I might use my Toshiba or tablet for casual web browsing.
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05-10-2017, 06:53 PM
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#10
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Senior Member
Join Date: Dec 2012
Location: Tahlequah
Posts: 3,079
Oklahoma
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Quote:
Originally Posted by WannaBeFree
Thanks wahoonc,
I have an Inspiron 7559. It uses a quad core (8 hyper-threaded cores) processor, has 4K video, and a 130W power brick. I found an adapter at https://www.parts-people.com/index.p...n=item&id=5149 but it is only 65W and does not have my model in the compatible list.
I use this guy for heavy lifting - image processing and running virtual machines. Now that I've become more cognizant of the power required for the 7559 I might bring along another low power Toshiba net book I have. Biggest problem with it is the soldered on 2GB of RAM and 32GB SSD. Windows 10 with updates consumes almost all of the RAM and SSD. Maybe I'll install a light variant of LINUX and use the Toshiba for casual web browsing.
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Looky
12 vdc step up transformer | eBay
__________________
2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners
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05-10-2017, 10:10 PM
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#11
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Very interesting.
uxcell® DC 12V 9V~18V Step-Up to DC 19V 6A 114W Waterproof Power Supply Booster
is very close to the 19.5V and 6.7A which the DELL brick produces.
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05-10-2017, 10:19 PM
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#12
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Senior Member
Join Date: Dec 2012
Location: Tahlequah
Posts: 3,079
Oklahoma
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Here's a better one I found,
12A 200W Adjustable DC-DC Step Down Converter Module 4.5-30V to 0.8-30V | eBay
I used something similar to this to run my HughesNet satellite modem and the Linksys router in my solar house.
__________________
2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners
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05-10-2017, 10:31 PM
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#13
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Nice :-) The output is certainly in the required range. Do you know how the Current/Voltage are adjusted? Maybe potentiometers?
Output Current: 0-12A
Output Voltage: 0.8-30V
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05-10-2017, 10:34 PM
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#14
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Senior Member
Join Date: Dec 2012
Location: Tahlequah
Posts: 3,079
Oklahoma
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Quote:
Originally Posted by WannaBeFree
Nice :-) The output is certainly in the required range. Do you know how the Current/Voltage are adjusted? Maybe potentiometers?
Output Current: 0-12A
Output Voltage: 0.8-30V
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On one end that is shown is the blue trimmer with the screwdriver slot for adjustment.
I like this one better because you can add a little muffin fan to it and keep it cooler or work it harder.
__________________
2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners
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05-10-2017, 10:36 PM
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#15
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Site Team
Join Date: Jun 2014
Location: Sprung Leak
Posts: 3,157
North Carolina
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Quote:
Originally Posted by WannaBeFree
Thanks wahoonc,
I have an Inspiron 7559. It uses a quad core (8 hyper-threaded cores) processor, has 4K video, and a 130W power brick. I found an adapter at https://www.parts-people.com/index.p...n=item&id=5149 but it is only 65W and does not have my model in the compatible list.
I use this guy for heavy lifting - image processing and running virtual machines. Now that I've become more cognizant of the power required for the 7559 I might bring along another low power Toshiba net book I have. Biggest problem with it is the soldered on 2GB of RAM and 32GB SSD. Windows 10 with updates consumes almost all of the RAM and SSD. Maybe I'll install a light variant of LINUX and use the Toshiba for casual web browsing.
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Mine has a 90 watt power supply. When I get a chance let me do some digging. It may be that the Latitude is set up different. My 12 volt is just a cable.
Aaron 😎
Sent from my XT1254 using Tapatalk
__________________
There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
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05-10-2017, 11:58 PM
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#16
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Site Team
Join Date: Jun 2014
Location: Sprung Leak
Posts: 3,157
North Carolina
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Here is the part number for my Dell OEM 12v charger; ADP-90ND AA Cheap it ain't but it is plug and play. It says it is rated for 90 watts max. I have the old style airplane adapter too, but haven't flown on a plane with those in ages.
Aaron
__________________
There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
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05-11-2017, 01:26 AM
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#17
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Quote:
Originally Posted by sundancer 87
On one end that is shown is the blue trimmer with the screwdriver slot for adjustment.
I like this one better because you can add a little muffin fan to it and keep it cooler or work it harder.
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Thanks! That might work really well
The whole reason for going with the Inspiron 7559 was to get close to the performance of my 2012 desktop. I never found a good solution to connect a desktop computer directly to a 12V battery bank (no inverter). Have you done anything like that?
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05-11-2017, 01:33 AM
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#18
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Quote:
Originally Posted by wahoonc
Here is the part number for my Dell OEM 12v charger; ADP-90ND AA Cheap it ain't but it is plug and play. It says it is rated for 90 watts max. I have the old style airplane adapter too, but haven't flown on a plane with those in ages.
Aaron
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Thanks Aaron,
I was looking at that one and it looks nice. My notebook is a bit of a beast and uses a 130W brick though.
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05-11-2017, 09:47 AM
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#19
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Site Team
Join Date: Jun 2014
Location: Sprung Leak
Posts: 3,157
North Carolina
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Quote:
Originally Posted by WannaBeFree
Thanks! That might work really well
The whole reason for going with the Inspiron 7559 was to get close to the performance of my 2012 desktop. I never found a good solution to connect a desktop computer directly to a 12V battery bank (no inverter). Have you done anything like that?
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I used UPS for my desktop back when I had one. They have an inverter built into them. We used the APS brand stuff. Instead of wiring up 12 volt outlets for your laptop consider the possibility of using an inverter? Either way you are going to have some sort of power losses. An inverter would also allow you to run other odds and ends like printers and televisions. Just make sure the battery bank is beefed up.
Aaron
__________________
There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
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05-11-2017, 05:35 PM
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#20
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Senior Member
Join Date: Nov 2016
Location: Alexandria
Posts: 101
Virginia
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Quote:
Originally Posted by wahoonc
I used UPS for my desktop back when I had one. They have an inverter built into them. We used the APS brand stuff. Instead of wiring up 12 volt outlets for your laptop consider the possibility of using an inverter? Either way you are going to have some sort of power losses. An inverter would also allow you to run other odds and ends like printers and televisions. Just make sure the battery bank is beefed up.
Aaron
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Thanks Aaron,
I was thinking of using an UPS and modifying it to connect to the battery bank vs the small internal battery. My thought was it should produce a pure sine wave and pure sine wave inverters can be more expensive vs an UPS with a dead battery – maybe free on Craig’s LIst.
One 12V desktop power supply I found is:
M4-ATX, intelligent ATX automotive power supply, 6/30V - power your PC in a car.
I contacted support and they felt it might be too underpowered for my system so I opted for a beefier notebook.
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