Spark when hooking up lipos?

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  • ms71171
    Senior Member
    • Jul 2010
    • 127

    #1

    Spark when hooking up lipos?

    Just thought I'd ask, but what's up with the big spark when you make the final connection with 2 3s lipos (6s) in series? Just seems odd.
    32" Toysport Triton, stepped hull, no flood chamber, 1515 1.5y NEU 1500kv motor, 180a Turnigy SC - running 6S, Aquacraft SV27 - currently running UL1 motor on 4S. Boat has seen 59mph running Feigao 11XL on 6S, 17" Velocity Minicat
  • LiPo Power
    DJI Drone Advanced Pilot
    • May 2009
    • 3678

    #2
    It is normal.....
    Use rubber gloves....
    DJI Drone Advanced Pilot
    Canada

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    • m4a1usr
      Fast Electric Addict
      • Nov 2009
      • 2036

      #3
      Try this for some answers. http://www.raptortechnique.com/gaui/antispark.htm

      John
      Change is the one Constant

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      • ms71171
        Senior Member
        • Jul 2010
        • 127

        #4
        Originally posted by m4a1usr View Post
        Good article! Thank you! If all I have to worry about is some carbon build-up, I can deal with that. I was just worried it would hurt by ESC or something.
        32" Toysport Triton, stepped hull, no flood chamber, 1515 1.5y NEU 1500kv motor, 180a Turnigy SC - running 6S, Aquacraft SV27 - currently running UL1 motor on 4S. Boat has seen 59mph running Feigao 11XL on 6S, 17" Velocity Minicat

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        • Jeff Wohlt
          Fast Electric Addict!
          • Jan 2008
          • 2740

          #5
          You will begin to pit the connectors with anything over 2S. I made a jumper to precharge with a cap but need to get the rating. It takes several minutes to charge it so it is not very fast.
          www.rcraceboat.com

          jwohlt5362@yahoo.com

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          • tdonnellyem
            Member
            • May 2010
            • 41

            #6
            here is another link to a no spark calculator. with it you can input your cell count/voltage to determine what size resistor you need to use.

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