This is the perfect time to "update" your entire electrical
system as has been stated earlier - this ain't rocket science but done incorrectly it either won't work or you can hurt yourself alot.. Some things to consider- As you currently don't have a "converter" in your unit - the only way that you can charge your 12 volt battery
is by hooking the trailer to your vehicle when it is running - that's not not handy at all..
What I did (in no particular order) goes something like this..
- I cut a hole in the fiberglass below my furnace
under the kitchen sink and installed a "converter" .. This unit is used to "convert" 110 volt AC to 12 volt DC.. It also contains a number of circuts with brakers/fuses for both 110 volt and 12 volt power lines..
- That octaginal electrical
box in the closet needs to be repurposed - use it only as the box to connect the outside power cord to the main power line to the "converter"
- Mount a 12 volt battery
in the tongue of the trailer and run lines along the frame and then up thru the fiberglass and connect these lines to the appropriate places on the "converter"
- Replace all existing power lines - AC and DC - by using attaching the new lines to the old ones and "pulling" the old lines out and thus pulling tbe new lines into the same locations..
- put in a few new "lines" to where you think you might need them - e.g. new recepticles where you think they are missing or new lines for more lights
or .. the wish lost goes on..
- label all the lines as to their purpose and when it comes to hooking the lines to the "converter" this might be the time to hire that electrician or call that friend that can assist you in this..
Hope this helps ;-)