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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Disconnect battery when not using?

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Boon Docker

Mountain Foothills of Southern Alberta

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Posted: 01/16/20 05:36pm Link  |  Quote  |  Print  |  Notify Moderator

opnspaces wrote:

Yes, as said above you need to disconnect the batteries when you leave to head home.


Not a good idea disconnecting until you get home. You need the battery connected for the break away switch while towing.

Lwiddis

Mojave, Kern County, California

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Posted: 01/16/20 06:22pm Link  |  Quote  |  Print  |  Notify Moderator

Solar isn’t experimental, unreliable...


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LadyRVer

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Posted: 01/16/20 07:12pm Link  |  Quote  |  Print  |  Notify Moderator

I agree with Salem.... I was told to leave the battery on when connected to shore power for the converter and other things like LP detector (hardwired into 12 volt).

I did disconnect mine when I was not using trailer. Used the knife blade cut off switch.

Also, when traveling down the road, aren't the trailer brakes powered by the trailer battery?

rexmitchell

Texas

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Posted: 01/16/20 07:23pm Link  |  Quote  |  Print  |  Notify Moderator

salem wrote:

If I read it right, one of the posters said to disconnect the battery when connected to shore power. I've always been under the impression that the battery needed to be connected in order for the converter to keep it charged. In fact, that's what the dealer told me 15 years ago. Is there a different way of thinking now?


I’ve never done that since I want it to charge when connected. Otherwise how will it charge.

rexmitchell

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Posted: 01/16/20 07:24pm Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

Install a solar system to charge, and keep your battery, charged. Cheaper than repeated battery replacement.


I was thinking about this today. We have an off grid camp setup in West Texas. We run a generator most of the time but a solar setup would be nice to not have to worry about charging the battery if we aren’t using the generator.

rexmitchell

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Posted: 01/16/20 07:25pm Link  |  Quote  |  Print  |  Notify Moderator

Boon Docker wrote:

opnspaces wrote:

Yes, as said above you need to disconnect the batteries when you leave to head home.


Not a good idea disconnecting until you get home. You need the battery connected for the break away switch while towing.


Our camper stays at our hunting camp so we aren’t pulling it back and forth until seasons end. Agree though for towing.

Lwiddis

Mojave, Kern County, California

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Posted: 01/16/20 07:45pm Link  |  Quote  |  Print  |  Notify Moderator

Will keep 100 amp hour battery charged most days...$146.

https://www.windynation.com/Polycrystalline-Solar-Kits/Windy-Nation-Inc/Eco-Solar-Kit-100-Watt-12-Volt-Solar-Panel-with-User-Settable-LCD-Charge-Controller-RV-Boat-Off-Grid/-/641?p=YzE9NDY=

cougar28

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Posted: 01/16/20 08:41pm Link  |  Quote  |  Print  |  Notify Moderator

LadyRVer wrote:



Also, when traveling down the road, aren't the trailer brakes powered by the trailer battery?


The rv battery only used for the brakes if the emergency break away is pull. The tow vehicle supply power for regular braking on the rv.


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OleManOleCan

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Posted: 01/16/20 09:38pm Link  |  Quote  |  Print  |  Notify Moderator

midnightsadie wrote:

x2 thats the thing to do. those cut off switchs in the rv don,t kill everything .right at the battery put a cut off .


I've disconnected at the battery for years. It works.
Batteries don't discharge as fast unhooked.
Leave em hooked up and watch the batteries drain.

I generally hook mine up and put a battery charger on em about a week before I go camping.

When I'm unhooked, I plug into Shore Power at my house.

philh

Belleville MI

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Posted: 01/17/20 09:38am Link  |  Quote  |  Print  |  Notify Moderator

Boon Docker wrote:

opnspaces wrote:

Yes, as said above you need to disconnect the batteries when you leave to head home.


Not a good idea disconnecting until you get home. You need the battery connected for the break away switch while towing.

Depends on how it's wired. On mine, the breakaway switch is wired directly to the battery.

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