How to Install a Master Battery Disconnect Switch on a Travel Trailer or RV
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Published 2023-02-19
Switch- amzn.to/3S9sLKo
Cable- amzn.to/3YL7glv
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All Comments (21)
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Just what I needed for a camper I'm about to pick up. Thanks for the informative but precise video!
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Thank you! I thought my disconnect switch was not properly hooked up. But your mention that the lights will draw from the tow vehicle battery solved my issue.
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From what I red you should hook the disconnect to the negative. Great video though
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Thanks for the info. BTW, any idea what size the smaller threaded post is on the battery? I see where it gives different size lug hole options for the cable
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I see you ran your positive wire through the switch. Is there a reason you did that rather than the ground wire?
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Which side of battery (positive or negative) is an ongoing argument in the rv world, but professionals say it should go on positive side! 😮
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Placement depends on where you want to put it !!!still good info
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they sell the disconnects in black , I would get a 4 position switch and switch the negative side that will not only disconnect the lead to the trailer but also from battery to battery so the weaker of the two batteries is not always draining the stronger ( this only adds 1 extra wire to the system )
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Did you install fuses for protection
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Always better to hook these to the negative wire, not the positive. You still break the circuit which prevents a drain on batteries but you're not messing with the hot wire.
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So how would i attach my electric tongue jack to the disconnect? It only has 1 wire and is currently wired to positive terminal on my 1 battery. I don't like that because its always hot. Id like it hooked to my disconnect switch so i can shut off like rest of camper?
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Is that second cable needed if I only have one battery?
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Should be on negative side
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Is it just me or do the instructions say it gose to the negative side to prevent possible sparking
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Any concerns with the terminal being exposed to the weather?
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Well your battery will still be dead if you store it for a long time regardless,but would be useful for a parasitic draw
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Why not leave the positive cable attached to the neighboring battery? I don’t see the point to connect each battery to the disconnect if they are in parallel. Anyone have an answer?
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should b on ground
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Im tryin to figure out how to keep water out of the switch
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I forgot to turn mine off a few times each year bahahaha
