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zach477's avatar
zach477
Explorer
Jul 31, 2015

Correct order to disconnect dual batteries

I want to make sure I've got this right...

I've got two 6v batteries in series. Wiring is as simple as can be. One cable connected to the negative terminal on batter 1, another connected to the positive terminal on battery 2, and a third connecting pos on battery 1 to neg on battery 2. No other wires to worry about.

I know that I should disconnect the wire going to the neg post of battery 1 first. Then what?
Class A

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  • downtheroad's avatar
    downtheroad
    Explorer
    Jul 31, 2015
    zach477 wrote:
    So after that it doesn't matter which order?

    And then the same thing when I hook up new batteries, as long as I connect the negative to battery 1 last?

    Correct
  • zach477's avatar
    zach477
    Explorer
    Jul 31, 2015
    So after that it doesn't matter which order?

    And then the same thing when I hook up new batteries, as long as I connect the negative to battery 1 last?
  • Fishinghat's avatar
    Fishinghat
    Explorer II
    Jul 31, 2015
    Mmwtdh wrote:
    As soon as you disconnect the negative from the battery (1), all is dead....



    Correct. Disconnect the negative wire to ground (vehicle chassis) first and that way if you should inadvertently touch a positive wire to the chassis, nothing will happen. So, negative wire off the post first.
  • Mmwtdh's avatar
    Mmwtdh
    Explorer
    Jul 31, 2015
    As soon as you disconnect the negative from the battery (1), all is dead....

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