Battery Isolator

Discussion in 'General RVing' started by TheBear, Jul 12, 2005.

  1. TheBear

    TheBear Junior Member

    I have a Battery Isolator that I am trying to figure out what the extra post is on it.

    It has 4 post. One is connected to the Alternator and the other two are connected one each to the two batteries.

    There is a label on the side that shows the 4 post and labels them as:

    A E 1 2

    A = Alternator (or supply)
    1&2 are the batteries.

    Anyone have any idea what E is for?

    The post E is right next to the post A which are both in the middle.

    o o o

    The sticker has the company name as "Valley Industries" which appears to only make hitch and hitch kits. "Multi Battery Isolator 90 amp" is listed on it. Model number 5277-81.

  2. jkill2001

    jkill2001 New Member

    Battery Isolator

    maybe means engine so in case that would be a ground. not sure tho
  3. Krazeehorse

    Krazeehorse New Member

    Battery Isolator

    Take your continuity tester and check from post E to the case of the isolator. I'm guessing (and this is only a guess) that it is a ground terminal. Incidentally if this is the case the E stands for Earth as a reference to ground.
    call me Krazee

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