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Old 04-14-2013, 08:50 AM   #29
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Burlington , Ontario
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After I found that the master switch in our trailer did not cut off all draw on the batteries, i installed quick disconnects on the battery clamps - a quick turn of the knob on each battery completely disconnects the batteries.

I do this if I am storing the trailer with the batteries installed for any period of time - although more often, I take the batteries out and take them to my home.

Also, if we are camped anyplace where I will be hooked up to 110 for a long time - say a couple of weeks or more, I open the battery circuit after a couple of days so that the batteries will not be continually subject to charging voltage. I don't know if that is important as I think the charger in our trailer is "somewhat smart" but it is not one of the newer high tech ones that are recommended. I figure it couldn't hurt.

I use AGM batteries that are supposed have minimal self discharge, and they say will hold charge for as long as a year.

Brian.
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Old 04-15-2013, 03:28 AM   #30
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Is this the type of battery disconnect you are talking about? Wouldn't you only need one since the batteries are in parallel? Do your have both of them installed on the negative posts?

Super Start® 08578 - Battery Terminal | O'Reilly Auto Parts

Thanks,

Kelvin
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Old 04-15-2013, 05:19 AM   #31
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The switch in your link will only work on the battery it's installed on.

The Perco will work on each or both when installed properly.

Bob
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Old 04-16-2013, 07:38 AM   #32
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Quote:
Originally Posted by KJRitchie View Post
Is this the type of battery disconnect you are talking about? Wouldn't you only need one since the batteries are in parallel? Do your have both of them installed on the negative posts?

Super Start® 08578 - Battery Terminal | O'Reilly Auto Parts

Thanks,

Kelvin

Hi Kelvin,

Yes, those are the style of disconnects that I installed.

But I do believe that you need two, one for each battery, exactly because they are wired in parallel!

If they were in series, one would do the trick (but you would have 24 volts!)

I don't recall, but I think I put them on the positive posts.


Brian,
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