Good ending battery voltage?

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  • MCO3024
    Member

    • Aug 2016
    • 33
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    #1

    Good ending battery voltage?

    What is a good battery voltage to shoot for after the flight? With my new plane the battery came out at 11.4 volts (3 cell) after 4 minutes flying. What should be the bottom limit of voltage after a flight?
  • farmflyer
    HobbySquawk Pilot

    • Mar 2015
    • 1164
    • Quitaque Texas
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    #2
    I try not to go below 3.7 per cell.

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    • MCO3024
      Member

      • Aug 2016
      • 33
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      #3
      Ok, so at 11.4 I had a bit left. Good to know,. Thanks!

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      • xviper
        Hobby Squawk Regular

        • Jan 2014
        • 8754
        • Calgary, Canada
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        #4
        Originally posted by farmflyer
        I try not to go below 3.7 per cell.
        Agreed! However, I've drained mine down on some rare occasions down to 3.2v/cell and they came back and worked fine for many, many cycles. I try not to do that, but sometimes it just happens. More importantly than just looking at the total voltage is to see each cell and how they vary. Also, most meters will tell you %left. That information can also be useful. Having said all this, I believe that at times, we listen to more "old wives" than we ought to.

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        • doctormike
          HobbySquawk Moderator

          • Oct 2013
          • 1260
          • Santa Fe NM
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          #5
          I have pretty well learned to fly my batteries down to storage voltage, usually about 5 minutes, unless I'm doing aerobatics. Then about 3-1/2 to 4 minutes. I don't like using my chargers to put them into storage. Doc

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