AIM GPS Module – Ext Power or Not

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    • January 22, 2015 at 4:08 pm #40907
      tony zambos
      Participant

      Wondering what the common practice is for powering a GPS module, external battery or internally by the M4?

      LAD Specialties customer / tony kart / rotax / kt100

    • January 23, 2015 at 8:41 am #40945
      Bill Boxell
      Participant

      Tony,

      If the external battery is there, use it. I feel the GPS works a touch better on 12VDC but even if there is no difference it’ll save you money buying 9VDC batterys by the multi pack.

      Bill

       

    • January 23, 2015 at 5:31 pm #40965
      tony zambos
      Participant

      thanks Bill

      LAD Specialties customer / tony kart / rotax / kt100

    • February 9, 2015 at 8:05 am #41956
      Jason Bane
      Participant

      I had issues with regular alkaline batteries. Brand new battery would give low battery sign as soon as GPS was hooked up. I switched to lithium battery and I have 3 race weekends on same battery and still going. Order lithiums from battery junction, much cheaper than picking them up in a store.

    • February 9, 2015 at 11:56 am #41976
      tony zambos
      Participant

      Jason,
      Thanks for the tip. My system includes an M4-2t and a gold eBox. The eBox gives me the power of two extra 9v’s. Which batteries from Battery Juction are you using?

      LAD Specialties customer / tony kart / rotax / kt100

    • February 9, 2015 at 7:09 pm #41993
      Jason Bane
      Participant

      I’m using these, so far so good, I just have the one that fits inside of my M4-2T, no Ebox for me. …..http://www.batteryjunction.com/duracell-dl10604-9v-lithium.html.

    • February 9, 2015 at 7:36 pm #41995
      tony zambos
      Participant

      Thanks Jason. I completely missed this battery the first time I looked at the stie.

      LAD Specialties customer / tony kart / rotax / kt100

    • February 10, 2015 at 6:12 am #42008
      Boyd Atherton
      Participant

      I’m using a 3s Li-Po RC car battery to power Mychron 4 and GPS.  It’s 11.1 volts and it charges to about 11.9 volts.   It’s been great, lasts so much longer than a 9 volt.  No more buying a 9 volt for $6 at the gas station I forgot to get one earlier.  Here’s a link to the one that I have.

      http://www.hobbyking.com/hobbyking/store/__7636__ZIPPY_Flightmax_2200mAh_3S1P_25C.html

      I’m also using a 4s Li-Po as the main kart battery to start my PRD.  Hardly ever have to charge it and it weighs about 600 grams.

    • February 10, 2015 at 7:08 am #42010
      tony zambos
      Participant

      Boyd,
      Thanks for the input. I’m assuming that you are connecting the battery to hub to power both the M4 and GPS module.

      LAD Specialties customer / tony kart / rotax / kt100

    • February 10, 2015 at 7:39 am #42011
      Boyd Atherton
      Participant

      Yes.  Connected to the power leads on the 2 port data hub that comes with the GPS.  I bought a couple of the female plugs would plug in the existing plug on the battery and put flat blade connectors on to plug into the Mychron wiring.

      I decided to go this route because of how quick the Mychron with GPS would run down a 9 volt.

    • February 10, 2015 at 7:44 am #42012
      tony zambos
      Participant

      Boyd,
      Appreciate the input. thanks

      LAD Specialties customer / tony kart / rotax / kt100

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