(Revised!) My first wiring diagram.

[Shadow Catcher]

Do not short yourself on 120 outlets! We have two external outlets (weather proof) one is dedicated to the AC unit in front and the one in the rear is often used by Nancy for her electric skillet and one of them comes in handy for a fan in hot weather. One GFI will protect them all. On the interior we have four one powering the TV and one powering the Recom weather radio and power for the TV antenna or satellite receiver, and two for phone chargers etc. I was surprised how quickly outlets fill up once you have them.
The 12V outlets are just as important for when we are off the "grid" and I planned for both, I will acquire an inverter to power the TV only ocasionaly everything else can be powered also by 12V or propane, OK Nancy's hair dryer cant be, but it might be an interesting exercise.
Plan for what you will WANT in the future not for what you think you need now

[Engineer Guy]

What SC said twice. With Distribution Blocks, you'll be able to grow the Wiring. Or, run a Wiring Stub and tape it off somewhere you can get to it later.

On the AC side, same thing. You can also run some Wire to a sealed up 'spare' Box, safely closed off.

Guano occurs. Most us Mortals can't foresee everything, so plan for that Design 'mortality' in advance.

[eamarquardt]

Looks good.

May I suggest you move the PD9245 as close as possible to the battery. You want to avoid voltage drop between the charger and the battery as much as possible.

I run the same converter in my trailer. It works good.

When you are charging at a high rate, there might be a voltage drop. However as the charge current drops off the voltage drop will decrease exponentially so that when you are in the "trickle" or "maintenance" mode there will be virtually no drop at all. E=IR. It's kind of like an "automatic" voltage regulator.

Even a 40 amp converter/charger won't pump 40 amps into a battery while charging it. I've never measured more than about 6 amps on a battery that wasn't abusively discharged even when the battery charger was capable of far more current.

Cheers,

Gus

[Evan Gaffney]

Do not short yourself on 120 outlets! We have two external outlets (weather proof) one is dedicated to the AC unit in front and the one in the rear is often used by Nancy for her electric skillet and one of them comes in handy for a fan in hot weather. One GFI will protect them all. On the interior we have four one powering the TV and one powering the Recom weather radio and power for the TV antenna or satellite receiver, and two for phone chargers etc. I was surprised how quickly outlets fill up once you have them.
The 12V outlets are just as important for when we are off the "grid" and I planned for both, I will acquire an inverter to power the TV only ocasionaly everything else can be powered also by 12V or propane, OK Nancy's hair dryer cant be, but it might be an interesting exercise.
Plan for what you will WANT in the future not for what you think you need now

A valid point. Perhaps I'll just put my GFI outlet on the other side of the shore inlet and hook the power strip and charger to that. In terms of other necessities, moving the fuse block to the forward bulkhead makes it more accessible in my design, so as long and I run some extra wires of various gauges through the roof from front to back, I can always add stuff as the need arises. I suppose even if I never step up to A/C, heat, and an electric cooler, these contingencies will at least increase the resale of the trailer for when I want to do project number 2!!!

[bobhenry]

Motion detectors are a thought. I'll look into it!

I was looking for 12 volt DC motion detectors and found one for $93.00

Then I found this little fellow.......http://www.ebay.com/itm/DC-12V-24V-8A-Infrared-PIR-Motion-Sensor-Switch-lighting-light-/160696150519?pt=LH_DefaultDomain_0&hash=item256a3ca9f7

[absolutsnwbrdr]

Motion detectors are a thought. I'll look into it!

I was looking for 12 volt DC motion detectors and found one for $93.00

Then I found this little fellow.......http://www.ebay.com/itm/DC-12V-24V-8A-Infrared-PIR-Motion-Sensor-Switch-lighting-light-/160696150519?pt=LH_DefaultDomain_0&hash=item256a3ca9f7

In my basement I don't have light switches, just pull chains. So I got two of these. They're pretty nice. Battery powered too.

http://www.smarthome.com/4621W/Sylvania ... ite/p.aspx

I might pick up a couple for my under-mattress storage compartment. They would only come on if the compartment door opens, which is limited.