Boat keeps shutting down LVC?

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  • jerry123
    Member
    • Feb 2014
    • 75

    #1

    Boat keeps shutting down LVC?

    UL 19 right from when the boat takes off it dies after about 15 seconds. Wait for about 10 seconds and she's off and running again but then dies after about another 15 seconds. I bought another Dynamite 120 amp ESC and ran it today and the same thing. I am using 2 2s giant power 6000mah 70-140c batteries. Do you think I should turn the lvc down to 3 amps? Don't want to ruin the batteries.
    Any help would be appreciated.
  • Jesse J
    scale FE racer
    • Aug 2008
    • 7117

    #2
    Turn off lvc and check your voltage after each minute to learn how long you can run wo hurting packs.
    Shouldn’t draw down below 3.5v per cell under load, they should come back to 3.7 when they recover.
    "Look good doin' it"
    See the fleet

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    • jerry123
      Member
      • Feb 2014
      • 75

      #3
      Jesse, thank you for that advice I will try it out tomorrow. Have you ever heard of anybody else having the same problem?

      Comment

      • MadProps
        Senior Member
        • Mar 2017
        • 236

        #4
        Originally posted by jerry123
        Jesse, thank you for that advice I will try it out tomorrow. Have you ever heard of anybody else having the same problem?
        many of us .......turn it off and time your runs

        Comment

        • Mike W
          Senior Member
          • May 2018
          • 348

          #5
          Post pic of wiring.
          Otto RC Marine

          Comment

          • Doby
            KANADA RULES!
            • Apr 2007
            • 7280

            #6
            lvc=batteries run down to low.
            Grand River Marine Modellers
            https://www.facebook.com/search/top/...ne%20modellers

            Comment

            • fweasel
              master of some
              • Jul 2016
              • 4286

              #7
              When I ran the Dynamite 120A ESC's in my Zelos 36, I had to lower the LVC to 3.2V to prevent my upgraded props from prematurely tripping the LVC circuit very early in the run, on high quality Revo packs. I timed the runs on that boat and almost always brought it back with the cells at 3.8V. It was an LVC sensativity issue, not a battery problem, in my case anyway. I would follow the advice the others have already given.
              Vac-U-Tug Jr (13mph)

              Comment

              • rol243
                Fast Electric Addict!
                • Apr 2017
                • 1038

                #8
                120 amp esc is abit low for running on 4s , also is the pro the right size and not overloading the esc ?

                Comment

                • fweasel
                  master of some
                  • Jul 2016
                  • 4286

                  #9
                  Originally posted by rol243
                  120 amp esc is abit low for running on 4s , also is the pro the right size and not overloading the esc ?
                  Not if he's still running the stock motor. That boat can run on 4S all day long
                  Vac-U-Tug Jr (13mph)

                  Comment

                  • jerry123
                    Member
                    • Feb 2014
                    • 75

                    #10
                    Thanks for all your advice the boat is totally stock motor and prop. I'm just wondering if it's something to do with the motor causing it to trip there ESC? I know it's not the ESC cuz I put a brand new one in and it does the exact same thing.

                    Comment

                    • MadProps
                      Senior Member
                      • Mar 2017
                      • 236

                      #11
                      Originally posted by jerry123
                      Thanks for all your advice the boat is totally stock motor and prop. I'm just wondering if it's something to do with the motor causing it to trip there ESC? I know it's not the ESC cuz I put a brand new one in and it does the exact same thing.
                      did you install the same brand ESC to test your theory?

                      unless you installed a different type ESC to test your theory, that doesnt exclude the ESC there is a batch of seaking ESC 's that most all of us have the SAME issues as you and had to disable them , even if you did use a different brand ESC that doesnt exclude the LVC killing your buzz .....I have a turnigy and 2 seakings that do the same thing, till I turned them off

                      did you program the ESC to turn off the LVC as recommended?

                      Comment

                      • rol243
                        Fast Electric Addict!
                        • Apr 2017
                        • 1038

                        #12
                        Yes there has been cut out issues with new turnigy esc,s , can not be fixed . some have been lucky to just turn off the low voltage cut off but if this fails then the esc is no good.

                        Comment

                        • fweasel
                          master of some
                          • Jul 2016
                          • 4286

                          #13
                          Originally posted by jerry123
                          Thanks for all your advice the boat is totally stock motor and prop. I'm just wondering if it's something to do with the motor causing it to trip there ESC? I know it's not the ESC cuz I put a brand new one in and it does the exact same thing.
                          Did you program the new ESC for the proper timing and LVC settings or did you just install it straight from the box? If you haven't programmed it, I'd suggest picking up the program card, which is inexpensive, and makes the task very simple.
                          Vac-U-Tug Jr (13mph)

                          Comment

                          • jerry123
                            Member
                            • Feb 2014
                            • 75

                            #14
                            I do have a program card and the only thing that I changed was the reverse I took the reverse off. Everything else I left Factory settings. I plan on running it tomorrow with lvc turned off. Will run it for 2 minutes and check voltage to make sure batteries aren't drained too low.

                            Comment

                            • fweasel
                              master of some
                              • Jul 2016
                              • 4286

                              #15
                              Not sure what the default setting is for timing on a new ESC, but I would confirm that it's set to 7.5* which is what the 3831 motor requires.
                              Vac-U-Tug Jr (13mph)

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