Battery power question - Page 3 - Fiberglass RV

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Old 03-30-2006, 04:47 PM   #29
Gina D.'s Avatar
Name: Gina D.
Trailer: '77 Leocraft 17 & Former Burro owner and fan!
West Coast USA
Posts: 9,010
Thats a CONvertor, as I thought.

A COnvertor takes 110 and converts it to 12v. Thats why all the light worked with a dead battery. It stepped down the voltage for you.

I did not see any 110v lights in your trailer.

An INvertor takes 12v and turns it into 110.

The plug in front is 110, and no doubt is as Joe suggests, just a direct outlet for 110. There is nothing marked that indicates it's inverted.

Do not plug any 12v items into that outlet, lest you want a melted item and a new hairdo.

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Old 03-30-2006, 04:57 PM   #30
Senior Member
Trailer: 74 13 ft Boler and 79 17 ft Boler
Posts: 568
Hi Rick, I would say that the 110V receptacle is live when the trailer is plugged into 110 V power......the rocker switch only controls everything on your trailer that is 12V.....on Bat, the battery supplies the 12V and on Conv, the convertor supplies the 12V to your 12V wiring......if you require some 110V off your battery, you get an inverter and wire it to your battery thru a switch controlling whether you want 110V from the inverter or from your regular 110V from outside the trailer into one or more dedicated 110V receptacles you`ll be able to power some 12V accessories governed by the size of the inverter and how long you can do this, by the battery capacity....Benny

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Old 03-30-2006, 07:10 PM   #31
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Name: Brian
Trailer: Boler (B1700RGH) 1979
Posts: 5,000
Here's my best guess at a guided tour of the front panel of this basic converter:

Push/pull switch on left
top label:

If the green band is showing the switch is pulled out, and is thus off (green=safe?)

right side label:

The three things that are turned on and off by this switch:
  1. the AC-to-DC converter (and thus the DC power)
  2. the outlet in this panel (immediately below the switch)
  3. some extension outlet located elsewhere in the trailer
bottom label:

The switch is pushed in to turn it on; it is switching the 120 VAC power only.

Rocker switch on right
BATT = DC power comes from the battery
OFF = DC power circuit is off (no power)
CONV = DC power comes from the converter (battery probably disconnected from DC power circuit)

Fuse above rocker switch
12.5 VDC
AGC 10

12.5 VDC = output of the converter through this fuse
MAX FUSE 10 A = don't use a fuse larger than 10 A, since that's what the converter can handle
AGC 10 = common style glass fuse in 10 amp rating

I agree that the outlet is just a convenient place to plug in, with power from the "shore power" cable - the converter doesn't do anything with this power, and if you want AC power where there is no shore power you need to use an inverter. You can just use a portable unit like Gina, but you need wiring to the battery (not to the converter) to supply it.

The photo helps a lot - thanks, Rick, for posting it.

(On edit, just fixed a missing decimal point)
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
STATUS: No longer active in forum.
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Old 03-30-2006, 09:39 PM   #32
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rickster's Avatar
Trailer: 1979 Trillium 13 ft / 2001 Toyota Tacoma DCab 4x4
Posts: 16

Everyone is so helpful, and knowledgeble.

This is a great reference for me know when I can start putting this all together. I also have a friend that can help me get this into place. I hope to start on that part of my trailer next month or so.

Thanks again.


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