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Author Topic: Trailer Electrical  (Read 3917 times)

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Offline Carlriddle

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Trailer Electrical
« on: May 23, 2014, 10:04:49 AM »
Ok, I've installed an inverter in trailer to run 120v from the 12v battery.  Battery is charged thru 7-way.  7 way is limited to 30A (I think).  If the inverter pull more than 30a, will it pop fuse or just pull excess from trailer battery.  When fridge kicks on its 4A at 120v so about 40A at 12v.

What say you??
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Offline WelderPat

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Re: Trailer Electrical
« Reply #1 on: May 23, 2014, 10:29:20 AM »
Put a battery in the trailer.
Charge it from 7 pin.
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Offline Carlriddle

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Re: Trailer Electrical
« Reply #2 on: May 23, 2014, 10:58:24 AM »
Quote from: WelderPat on May 23, 2014, 10:29:20 AM
Put a battery in the trailer.
Charge it from 7 pin.

Thats what I have set up.  Just didnt want to pop fuse on 7 pin if inverter called for more.
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Online fabr

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Re: Trailer Electrical
« Reply #3 on: May 23, 2014, 11:13:48 AM »
Depends on how you are wired in. Is the inverter connected directly to the battery? Is battery in the trailer? I assume so. If that is the case you are OK. Let truck alternator charge battery thru 7 pin. 
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Offline Carlriddle

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Re: Trailer Electrical
« Reply #4 on: May 23, 2014, 12:26:20 PM »
Quote from: fabr on May 23, 2014, 11:13:48 AM
Depends on how you are wired in. Is the inverter connected directly to the battery? Is battery in the trailer? I assume so. If that is the case you are OK. Let truck alternator charge battery thru 7 pin.

Yes. Yes. Yes.  My head hurts from this, so I'm loading tomm, heading out Sun and see your ass's in sand Mon just after lunch........................................if food dont make it I'll buy more.  Aslong as I make it by 6pm
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Offline fastcorvairs

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Re: Trailer Electrical
« Reply #5 on: May 23, 2014, 12:38:14 PM »
Quote from: Carlriddle on May 23, 2014, 12:26:20 PM
Yes. Yes. Yes.  My head hurts from this, so I'm loading tomm, heading out Sun and see your ass's in sand Mon just after lunch........................................if food dont make it I'll buy more.  Aslong as I make it by 6pm

Best to put one way switch in line with the seven pin to truck.  Would not want to run truck batt's down to.
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Offline Lance-W

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Re: Trailer Electrical
« Reply #6 on: May 23, 2014, 12:45:08 PM »
Or just unplug the 7 pin when your parked in camp................  Seen more than one tow vehicle with a dead battery because the people forgot this..........
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Online fabr

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Re: Trailer Electrical
« Reply #7 on: May 23, 2014, 01:03:17 PM »
Quote from: Lance-W on May 23, 2014, 12:45:08 PM
Or just unplug the 7 pin when your parked in camp................  Seen more than one tow vehicle with a dead battery because the people forgot this..........
That's why I suggest the trailer have it's own battery with a battery isolator to do it right. That way you can charge both batteries from the truck and not worry about discharging truck battery even if trailer battery completely discharges.
« Last Edit: May 23, 2014, 01:06:20 PM by fabr »
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline Carlriddle

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Re: Trailer Electrical
« Reply #8 on: May 23, 2014, 01:26:30 PM »
7way charge wire is dead with ing off.  But I unplug when parked for night. 
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Online fabr

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Re: Trailer Electrical
« Reply #9 on: May 23, 2014, 01:31:12 PM »
It'll likely back feed thru alternator-maybe.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline Carlriddle

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Re: Trailer Electrical
« Reply #10 on: May 23, 2014, 04:13:02 PM »
If my beer is cold mon when I arrive then its a success. Otherwise  :7
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