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Charging DX7s with imax b6?

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  • #1

    Charging DX7s with imax b6?

    Hello,
    Was wondering as i am taking my heli on holiday and only want to take 1 charger (1 thing less for me to lose/forget) so is it possiable to charge my dx7s using my Imax b6?I have heard there are a few issues with polarity.
    Many thanks,
    Liam
    Lotsa quads nd fpv stuff on a:
    Futaba T8J
    Tags: None
  • #2
    Your charger has the capability of charging the DX7s battery (nimh) so I guess it's just a case of making a charging cable for it.
    Trex 700n DFC - YS120, Spartan Vortex
    Gaui X5 - Spartan Vortex






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    • #3
      easy its a plug from maplin and charge as nimh on auto... The positive is the outside i have just checked a DX7SE

      Steve
      Steve...

      Outrage RC Field Rep


      Now enhanced with some more EGS's....

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      • #4
        If i unplug the battery what connector does it use?
        Liam
        Lotsa quads nd fpv stuff on a:
        Futaba T8J

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        • #5
          You *must* remove the battery from the DX7S if you want to do this.

          Like the DX8, the DX7S has the charging circuit built into the radio and comes with an external power supply, not a charger.

          This isn't like the DX7 or DX7SE where you could plug a charger straight into the radio.

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          • #6
            I hadnt thaught of that ... just plug 12v in the side then...

            S
            Steve...

            Outrage RC Field Rep


            Now enhanced with some more EGS's....

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            • #7
              Wait, so the charger it came with is just a 12v supply?
              Lotsa quads nd fpv stuff on a:
              Futaba T8J

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              • #8
                Originally posted by xygax View Post
                I hadnt thaught of that ... just plug 12v in the side then...
                That is certainly the easiest way to go, personally I don't like the Spektrum charge circuit for NiMH as it is just a dumb trickle charge so better to use the B6 if you can.

                Pity really, Spektrum made the charge circuit work properly for Lipo but didn't bother with a peak detect on the NiMH

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                • #9
                  Originally posted by xygax View Post
                  I hadnt thaught of that ... just plug 12v in the side then...

                  S
                  According to the Transmitter blurb yes:

                  "The DX7s features a built-in multi-chemistry charger designed to charge 4-cell NiMH and 2-cell LiPo batteries at a charge rate of 200mAh. The charge jack on the right side of the transmitter is non-polarity-critical, allowing the use any type of 12-volt supply to charge the battery regardless of connector polarity."

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                  • #10
                    Originally posted by Liam B. View Post
                    Wait, so the charger it came with is just a 12v supply?
                    Yes, it is not a charger.

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                    • #11
                      Is this the same as on the dx6i by any chance?
                      Marcus


                      Trex 450 Pro DFC
                      Trex 550 DFC
                      DX8 Pheonix flight Sim

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                      • #12
                        Originally posted by sp4rky-m4rky View Post
                        Is this the same as on the dx6i by any chance?
                        No, the DX6i still uses an external trickle charger, not a power supply.

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                        • #13
                          The original DX6i is a 4 cell tx and the original DX7 an 8 cell. Both Nimhs. Both chargers are slow low current with JR polarity. Positive on outside as Steve said.
                          Flasher 450 Sport. Assan GA250 with 520 tail servo, MKS DS450 cyclic.
                          Multiplex Cockpit Tx, DX7, DX6i
                          Blade 130-X, MSR, MSRX
                          Phoenix Sim

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                          • #14
                            Anybody know what connector the battery uses?
                            Liam
                            Lotsa quads nd fpv stuff on a:
                            Futaba T8J

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                            • #15
                              Re: Charging DX7s with imax b6?

                              I charged my dsx11 pack a few times using two needles attached to crocodile clips and stuck them into the connector - probably best to find a connector though as it's easy to short!
                              Trex 700n DFC - YS120, Spartan Vortex
                              Gaui X5 - Spartan Vortex






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