Parallel Battery Leads for Easier Charging on Large Connectors

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  • boredom.is.me
    Senior Member
    • Jun 2009
    • 595

    #1

    Parallel Battery Leads for Easier Charging on Large Connectors

    Is it weird that I'm considering adding a second smaller charge/discharge connector for the sake of easier charging? Since it's only for charging, the smaller connector could be an XT30 with 18AWG wire. That's more than enough to handle any charge/discharge currents, while still being small enough to be invisible under the larger wiring.

    A picture is worth a thousand words. Yes I know that is the wrong end of a deans connector. It is just there for clarity. Only crazy people still use deans.
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  • RaceMechaniX
    Fast Electric Addict!
    • Sep 2007
    • 2821

    #2
    Are the QS8 connectors difficult to plug and unplug?
    Tyler Garrard
    NAMBA 639/IMPBA 20525
    T-Hydro @ 142.94mph former WR

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    • boredom.is.me
      Senior Member
      • Jun 2009
      • 595

      #3
      They pretty much form a perfect seal. It feels like you're fighting a vacuum to separate them. I could just drill a tiny hole on the ESC/charger side.

      EDIT:
      Just tried drilling, but it made no difference.

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      • fweasel
        master of some
        • Jul 2016
        • 4286

        #4
        Originally posted by RaceMechaniX
        Are the QS8 connectors difficult to plug and unplug?
        Mine aren't.
        Vac-U-Tug Jr (13mph)

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        • fweasel
          master of some
          • Jul 2016
          • 4286

          #5
          You can try squeezing the male bullets inside the connectors of your charge leads with a small needle nose pliers. Light pressure, then rotate, and squeeze again, trying to create equal pressure 3-4 times around the circumference. That should help reduce the friction when making the connection with your batteries.

          DO NOT do this with the connectors on your ESC. If the connection is made too loose, you'll dramatically increase resistance and create heat under high current loads. Charging is done at a much lower current draw, so the fit of the connection isn't nearly as critical.
          Vac-U-Tug Jr (13mph)

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          • boredom.is.me
            Senior Member
            • Jun 2009
            • 595

            #6
            That definitely seems like the best option.

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            • jkflow
              Senior Member
              • Aug 2021
              • 329

              #7
              Out of all my connectors (Deans, XT30, XT60, XT90, EC5, IC5, EC8) I find the QS8 the easiest to work with and handle. Soldering is a breeze with a capable iron.
              Separation force, I find them the easiest to disconnect due to the large housing (large fingers). I have more problem with EC5 and XT90 types than these.
              Problem is finding stock though.

              A second connector for charging seems like a good idea, I just do not like more stuff in the rig that can cause issues. Novel idea and nothing wrong with it.
              As you stated, under NO circumstance should you use any type of male connector on a battery. That is a fire hazard waiting to happen.

              I literally threw all my Deans away, worst connector ever made imho.

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