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Old 06-05-2015, 02:38 PM   #1
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Wiring truck for Lance camper

I am looking to get my truck wired for my camper. As you guys may or may not know, Lance has a propietary 6 pin round plug on all their camper, with an 8 gauge charging wire for the fridge. I stopped and talked to a local rv place, and they will wire the truck, but they want to convert my lance plug to a standard 7 way blade plug, and put a 7 way blade plug in the bed, with only a 10 gauge charging wire. Will this be sufficient for a 1988 lc980, or should I take it to a lance dealer and have them install the correct plug with an 8 Guage charge line?
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Old 06-05-2015, 04:18 PM   #2
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Question .
Is there a battery mounted in the camper, or is the camper powered from a second battery mounted some where in the truck?
Do you have a 3 way fridge ?

Bigfoot campers used a rectangular 6 pin plug, for their campers that required mounting a battery in the truck.
L, signal & brake light
R, signal &brake light
Park lights
Back up lights
Interior lights and fridge 12v power
Camper ground.
It's been years since I wired one up, but I'm sure they didn't use 8ga. wire for the interior and fridge power.
If you have a 3 way fridge and a battery mounted in the camper, then you have a charge circuit that should have the heavier wire, because when the battery is low on charge, the wire could be carrying full alternator output to charge the battery. If your, camper power battery , is in the truck and the wiring to the camper is only carrying power to the lights and fridge then the 10ga. should be fine.


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Old 06-05-2015, 06:59 PM   #3
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Did not mean to confuse. The camper does have a 3 way fridge. It also has its own battery. So I would assume that is why Lance says to use an 8 gauge charge line?
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Old 06-05-2015, 07:04 PM   #4
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Did not mean to confuse. The camper does have a 3 way fridge. It also has its own battery. So I would assume that is why Lance says to use an 8 gauge charge line?
Not really confused , just needed to confirm your set up.
Yes , having a battery in the camper , would be the reason for the heavier wiring.
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Old 06-05-2015, 07:55 PM   #5
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Not really confused , just needed to confirm your set up.
Yes , having a battery in the camper , would be the reason for the heavier wiring.

So, I'm correct to think that my best bet would be to have the lance propietary harness wired into my truck bed, rather than convert the lance plug to a standard 7 way blade type, correct?
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Old 06-05-2015, 08:11 PM   #6
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Yes, best to go with the factory wiring set up , right down to the sizes and connector.
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Old 06-05-2015, 08:44 PM   #7
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Thanks Skip! I'm loving this place already!!
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Old 06-06-2015, 04:33 PM   #8
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Warranty issues

If the unit is still under warranty and you use any plug besides the Lance plug, the warranty is null and void. The reason for the larger wire is to reduce the fire hazard from an overheated smaller wire being used in the charging line. And if you are new to Lance, you might want to check out the Lance Owners of America website. Just like here, great folks to talk to.
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Old 06-06-2015, 08:31 PM   #9
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If the unit is still under warranty and you use any plug besides the Lance plug, the warranty is null and void. The reason for the larger wire is to reduce the fire hazard from an overheated smaller wire being used in the charging line. And if you are new to Lance, you might want to check out the Lance Owners of America website. Just like here, great folks to talk to.
It's far from in warranty, it's a 1988 lc980 that's been in storage for 15 years, but I still plan on using a lance factory plug.
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Old 06-19-2015, 11:43 PM   #10
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Just as an update, I went to my local Lance Dealer, Galaxy campers, which is a small 3 person facility. The owner himself did the wiring on my truck, and did clean work, and did it right! I am impressed.
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Old 06-26-2015, 11:52 AM   #11
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You did the right thing on the wiring. Do you have a battery isolator installed in the truck? I installed one on my 03 Dodge dually when I hauled campers on it. Didn't want to have a surprise "no start" situation with the truck.

I've tried running a 3 way fridge from camper batteries (2 group 31s) and was not happy with the results.
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Old 06-26-2015, 01:15 PM   #12
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You did the right thing on the wiring. Do you have a battery isolator installed in the truck? I installed one on my 03 Dodge dually when I hauled campers on it. Didn't want to have a surprise "no start" situation with the truck.

I've tried running a 3 way fridge from camper batteries (2 group 31s) and was not happy with the results.
There is no isolator installed in the truck, but there is one installed in the camper. Its designed to cut the drain to truck battery once it his 14.5 volts, according to the installer.
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Old 07-30-2015, 06:04 PM   #13
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Has anyone tried wiring the camper thru the in-truck accessory 30amp switch? I would like to have manual control. I have a Ford with the factory accessory switches in the center stack but I'm sure the other makes have them as well.Thanks!
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Old 08-01-2015, 12:37 PM   #14
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I dont think many people are to happy with using 12 v on a 3 way fridge? Maybe only when driving so the alternator is providing a power boost.

My 91 ford was wired up by a lance dealer in 94 for my 93 lance. It doesn't have an isolator, it only has a ignition solinoid. If I understand correctly an isolator will measure voltage on both batteries and switch the alternator charge to the battery that is lowest while never letting both batteries mate.

I am installing solar and a new inverter converter so I may disconnect this solinoid. ? any comments. my sc2030 solar controller will be taking the Crown RV battery up to 14.8v.
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