NMP 7.4v 2Amp Battery Packs

[JOddino]

What I tested was strictly a regulator without a switch.
Jim
  ----- Original Message ----- 
  From: Wayne Galligan 
  To: discussion at nsrca.org 
  Sent: Thursday, August 26, 2004 10:24 AM
  Subject: Re: NMP 7.4v 2Amp Battery Packs


  Jim,

  Is that the "Miracle Switch" w/6v regulator that your talking about from Maxx?  

  Wayne Galligan
    ----- Original Message ----- 
    From: JOddino 
    To: discussion at nsrca.org 
    Sent: Thursday, August 26, 2004 11:12 AM
    Subject: Re: NMP 7.4v 2Amp Battery Packs


    Way to go Troy.  
    For Dieter: The Maxx Products regulator I reviewed was a switching regulator.  These work by switching the applied dc voltage on and off with a variable duty cycle that self adjusts to hold the output voltage constant.  The switching is basically a high frequency square wave that creates many harmonics that potentially can cause radio interference.  Mike's obviously works but I know others have had trouble.  Powerflite sold this same regulator initially but has since gone to a linear regulator.  Maxx may have changed also but I don't know.  If you get one, check your ground range with and without the regulator to make sure you are not getting significant loss of range.
    Jim  
      ----- Original Message ----- 
      From: Troy Newman 
      To: discussion at nsrca.org 
      Sent: Wednesday, August 25, 2004 11:40 PM
      Subject: Re: NMP 7.4v 2Amp Battery Packs


      Jaccio regs made by Jim Oddino are the only regs I trust.

      Central has them.

      Troy Newman
        ----- Original Message ----- 
        From: Dieter Rozek 
        To: discussion at nsrca.org 
        Sent: Wednesday, August 25, 2004 11:52 PM
        Subject: Re: NMP 7.4v 2Amp Battery Packs


        Thanks for all the info. My next question was going to be what voltage regulator are you guys using as I haven't selected one yet. Now that you have recommended the Maxx Product I'll probably go with that. 
        Thanks again.

        Dieter
        On Wednesday, August 25, 2004, at 06:17 AM, mike mueller wrote:


          Dieter I use a similar pack (Berns) in my Tempatation with about the same servo's and it's better than good. As far as the charger goes I tend to stik to the deticated charger lik the NMP but I have used my Triton on it and it works fine. I think you will be pleased with the system. What regulator are you using on the system. I have found the Maxx Prod. 10Amp to be very good. Mike

          Dieter Rozek <rozekd at earthlink.net> wrote:

          I just purchase these battery packs and according to the included
          instructions is mentions to "Only use NMP's Lithium charger to charge
          these packs." I was wondering if anyone might know why this would be
          the case. Shouldn't any Li battery charger work? I already have a
          Kokam Li battery charger which allows me to charge at various rates.
          Is there a legitimate reason why I should buy their charger or should
          any Li charger work? Also, I was surprised at the diminutive size of
          the pack. Does this pack have enough juice to power 3x JR9411, 1x3412
          and 1x8411 in a Temptation? At 2A I would assume that this would be
          more than plenty? I would be interested in hearing anyone's experience
          with these packs.

          Thanks

          DIeter

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