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Old 03-29-2015, 03:09 PM   #1
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Battery switch

Does anyone have a switch on their battery box? I would like to shut off the battery when not in use as the detectors drain it aftewhile.

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Old 03-29-2015, 03:17 PM   #2
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I had one on our first coach, because we parked it where we could not plug it in during storage. I used the same switch that boats use - I had one around. Look up Perko switch.

Most people leave their RVs plugged in to keep the batteries charged.

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Old 03-29-2015, 03:24 PM   #3
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I have one on mine
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Old 03-29-2015, 04:37 PM   #4
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Wouldn't happen to know where you bought it or what make it is?
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Old 03-29-2015, 04:47 PM   #5
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Here is a listing of different types of disconnects. Most common is the knife type.

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Old 03-29-2015, 04:51 PM   #6
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I would use one of the rotary marine switches shown in the link provided. I would a post mounted switch as it's just something else that MAY add strain to the post.
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Old 03-29-2015, 04:51 PM   #7
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Battery box and switch


Here are a couple of pics of an upgrade I did on my trailer I added a battery box and a disconnect switch. I got the switch at harbor freight and recessed it into the side of the box (no exposed wires). I had room for two batteries in parallel and the switch.

Battery Box Photos by bgrfor3 | Photobucket
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Old 03-29-2015, 05:48 PM   #8
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I would use a marine grade switch over anything else. They are readily available, can handle multiple batteries, and you can install an isolator for separate banks, which would eliminate one bank draining into a weaker bank, but still allow charging all banks at the same time. On my boat, I like to alternate banks when offshore or dockside so that I always have one bank with a full charge.
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Old 03-29-2015, 05:54 PM   #9
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Standard equipment on many trailers. Should be on all.
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Old 03-29-2015, 05:57 PM   #10
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Mine is a Moroso.
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Old 03-29-2015, 08:35 PM   #11
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I added a second battery on my last TT with the Perko marine switch that had OFF-BATT1-BATT2-BATT1&2 positions. I mounted it on the front wall right above the battery boxes. Perko switch was $24 at my local hardware store.

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