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Old 10-05-2018, 03:17 PM   #1
Just BeClaus
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battery switch

i have a 2019 Laredo with a battery switch so I think... My past 5th wheels when the battery switch is turned off EVERYTHING is turned off.. Well not so with this rv the sliders are on along with the leveling is this normal? I would like to have it all turned off when in storage. Is this wired wrong or should I add another switch to make it so....
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Old 10-05-2018, 03:35 PM   #2
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That’s normal. It also lets safety equipment stay on like the gas detector. I personally don’t like it and added a switch in the main battery line.
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Old 10-05-2018, 03:38 PM   #3
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Your trailer is wired correctly. The battery cutoff switch disables some of the coach but does not disable the remote control unit, the slides, the leveling system/tongue jack/landing gear or the braking system. Additionally, it does not disable some of the battery powered safety and convenience systems like the radio memory/clock/backlight, the CO monitor/fire detector/LPG detector. Those items will drain a typical single GP24 or GP27 battery in about a week, sometimes less.
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Old 10-05-2018, 08:45 PM   #4
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Your trailer is wired correctly. The battery cutoff switch disables some of the coach but does not disable the remote control unit, the slides, the leveling system/tongue jack/landing gear or the braking system. Additionally, it does not disable some of the battery powered safety and convenience systems like the radio memory/clock/backlight, the CO monitor/fire detector/LPG detector. Those items will drain a typical single GP24 or GP27 battery in about a week, sometimes less.
I am putting a switch in my 5ver,, this is my 2nd trailer and I want it to disconnect everything for 2 reasons 1,, save the battery while in storage,, and 2,, the place I store it requires everything g to be dead or remove battery,, think it's a fire safety thing but not sure
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Old 10-06-2018, 02:53 AM   #5
Just BeClaus
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Thank You everyone. I also would like everything turned off, looks like I'm going down to the marine store and install another switch....
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Old 10-06-2018, 07:01 AM   #6
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That’s gonna be a lot of current across that battery disconnect switch. The slides and LG draw the most current when operating. I’d leave them wired as is if it were me. Possible can of worms down the road if rewired
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Old 10-06-2018, 07:17 AM   #7
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I think the one I put on mine was rated at 500 amps which should be well above what the slides etc. pull.
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Old 10-06-2018, 11:15 AM   #8
Local150
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That’s gonna be a lot of current across that battery disconnect switch. The slides and LG draw the most current when operating. I’d leave them wired as is if it were me. Possible can of worms down the road if rewired
I respectfully disagree,, the switch I am using Came from work,, it's new and actually for a piece of heavy equilmpment,, that is 24 volt and high amperage,, cant remember the amps and it is out at my shop a few miles from home but will check it,, but positive its plenty heavy
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Old 10-13-2018, 02:32 PM   #9
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Cut-off switch

Since the wiring is only good for 30A there is no need for a 500A switch. And the slides don't draw 100A. But here is what you can do. The power switches are on the positive side of the battery lead the may still be circuits that are "hot". The best way to overcome that is to simple re-wire the switch the cut the power on the grounf or negative lead. That way once activated there is NO power flowing in any circuit, which is really what you want. And a 30A switch from a auto supply store will work fine.

Happy camping.
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Old 10-11-2018, 11:37 AM   #10
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That’s gonna be a lot of current across that battery disconnect switch. The slides and LG draw the most current when operating. I’d leave them wired as is if it were me. Possible can of worms down the road if rewired
Mine is a switch that is rated for 12 or 24 volts and good for 500 amps. Pretty sure I am safe
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Old 10-11-2018, 08:52 PM   #11
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That’s gonna be a lot of current across that battery disconnect switch. The slides and LG draw the most current when operating. I’d leave them wired as is if it were me. Possible can of worms down the road if rewired
Aggreed! I am going to disconnect all electrical when i store it, ......JUST..... Disconnect the positive side of the battery.....no need for another swich. Take the wire off the battery post. Zip tie it off somewhare else. When you need it , screw it back on.
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Old 10-06-2018, 08:00 AM   #12
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Just don’t see the need. 500 amp switch. That’s large. Anyway to each his own.
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Old 10-06-2018, 08:11 AM   #13
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Just don’t see the need. 500 amp switch. That’s large. Anyway to each his own.
Not big enough, too much draw, too big???
If you want to disconnect EVERYTHIG you'll need to rewire your original disconnect, add another that's not "too big, too small, but just right" or disconnect the batteries OR deal with dead batteries in about a week.
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Old 10-06-2018, 06:00 PM   #14
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Just don’t see the need. ...

I don't understand this comment. Do you think he should leave it connected and let the battery go dead?
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Old 10-06-2018, 06:37 PM   #15
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I think he’s referring to the 500A rating.
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Old 10-06-2018, 07:09 PM   #16
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I think he’s referring to the 500A rating.
I thought he said earlier to leave it as is. I don't get it.
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Old 10-06-2018, 12:32 PM   #17
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If I remember correctly, slides and LG are run through 30A thermal reset circuit breakers. 500A is a bit overkill IMO.
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Old 10-06-2018, 01:04 PM   #18
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500A is the way it came and it was virtually identical to the one I was replacing. I think the lowest rated one I found online as a virtual disconnect was like 265 A. The higher rating doesn't cost any more and something in a 30-50A was not only hard to find, but too light IMO. The higher amperage rating can't hurt anything, the lower one can.
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Old 10-06-2018, 02:13 PM   #19
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4AGW wire is rated at 100 amps, so any switch "should" be rated at least that high. On the "distant side" of the switch will be the "auto reset" breakers for the slides, landing gear and house power. Typically those breakers are 40 or 30 amps.

This is my opinion, many others may disagree, and that's OK with me, I'll "salute and do it my way anyway".... The switch that's connected to the 4 AGW cable should be capable of handling everything the cable can deliver. Otherwise, the switch (if it's rated lower than the cable) will become the weakest link. ALL switches, because they open/close will arc. Because of this, they need to be rated higher than the cable connected to them.

I'd say that using a cutoff switch rated at anything higher than about 125 amps is sufficient. Using one rated at 1000 amps wouldn't hurt because the circuit is protected by the "downstream auto reset circuit breakers" YMMV
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Old 10-06-2018, 02:17 PM   #20
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disconnect the batteries if you want ALL to be disconnected.
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