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dtappy3353's avatar
dtappy3353
Explorer
Jun 24, 2017

battery disconnect switch

We have two 12v deep cycle marine batteries connected to each other. A fuse is attached and we pull the fuse to disconnect the batteries.

The batteries are in a side compartment of their own which is metal lined with large openings on bottom for air circulation.

We have heard about having a battery disconnect switch in lieu of pulling the fuse.

Can anyone please recommend the easiest way and most practical type of switch to buy? We have very limited experience with electrical issues.

Thank you very much.
dt
  • azrving's avatar
    azrving
    Explorer
    Jun 24, 2017
    You can buy them with on/off or Off/1/2/1&2. I prefer the one Soundguy posted as it can separate batteries or separate banks if you go to gc2 some day. It's also very easy to mount as the screws just go through it and into wood or through something like that plastic battery box along with nuts. The studs are also long enough for multiple terminals.
  • Sam_Spade's avatar
    Sam_Spade
    Explorer
    Jun 24, 2017
    dtappy3353 wrote:
    A fuse is attached and we pull the fuse to disconnect the batteries.


    How is the fuse "attached" and what is involved with "pulling" it ??

    Having a switch probably would be only marginally easier; maybe not enough easier to justify the trouble and cost of installing.
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Jun 24, 2017


    This type of switch has long bolts to stack cables on and is by far the simplest to install and use. It's either on or off.

    Good brands include Cole-Hersee and Pollak. NAPA parts stores carry these switches for trucks and heavy equipment. Beware of off-brands. The copper stud size requires terminal lugs with 3/8" diameter holes.

    I have never had one of this type switch fail, in memory. It is a true snap action awitch and can carry current that would melt dial switch and these critters cost a lot less.
  • Mel_B_'s avatar
    Mel_B_
    Explorer
    Jun 24, 2017
    SoundGuy wrote:
    dtappy3353 wrote:
    Can anyone please recommend the easiest way and most practical type of switch to buy? We have very limited experience with electrical issues.


    I've been using a Blue Sea m-Series battery disconnect switch for years, no issues at all. For use with 2 batteries a 6007 would be a good choice.


    X2 I have mine hooked up to four 6 volt battery's wired in two 12 volt banks, so with my switch I can turn off all four batterys are two batterys or none "off" it's a great way to go.
    Mel
  • Clay_L's avatar
    Clay_L
    Explorer
    Jun 24, 2017
    There are many choices. Marine stores are good places to get one and maybe some advice on which one.
  • SoundGuy's avatar
    SoundGuy
    Explorer
    Jun 24, 2017
    dtappy3353 wrote:
    Can anyone please recommend the easiest way and most practical type of switch to buy? We have very limited experience with electrical issues.


    I've been using a Blue Sea m-Series battery disconnect switch for years, no issues at all. For use with 2 batteries a 6007 would be a good choice.

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