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Another battery question...

Discussion in 'Pro/Adv Discussion' started by phantom3menace, Jul 27, 2015.

  1. phantom3menace

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    So I hear people say that we should never bring down our batteries below 25% or even more because it may ruin one or more of the cells. If thats so, then how can DJI claim to have 20+ minutes of runtime if and when we shouldn't run the batteries near depletion levels? It kind of seems like I'm getting jipped that 25% or so because I'll never get to use it.

    what do u guys think?
     
  2. Julius717

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  3. msinger

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    It's best to land when (or before) the first battery cell reaches 3.4V. See more here:
    HOW TO: Monitor battery voltage to watch for signs of failure | DJI Phantom Forum

    DJI's specs say the max flight time is approximately 23 minutes. That was probably from a flight indoors where they did nothing but hover in place a few feet from the ground. Once you're outside, there are many factors that will reduce that time -- like actually moving around, the wind, the temperature, etc.

    Buy more batteries :)
     
    #3 msinger, Jul 27, 2015
    Last edited: Oct 27, 2015
  4. phantom3menace

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    thanks for the very informative post. :rolleyes:
     
  5. msinger

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    Some people don't like to be helpful. Just ignore them :)
     
  6. bobmyers

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    Outside-- in the real world, maximum 12 minutes of video recording, if you can land and take- off before the battery will hit the 20% mark. I try start thinking about landing at 35 to 40 percent depending on how quickly I think I can get it on the ground-- I shoot to be on the ground at around 30%---- just some targets.
     
  7. SteveMann

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    Once a LiPo battery gets so low that the other cells in a pack are handling the whole load, you can get a runaway discharge. Exciting if it happens in the air.


    But, in all likelihood, the 23 minute capacity is a calculated one based on all the specs of all the components. This is a higher number that marketing likes, is not a lie, and almost impossible to realize in the real world.
     
  8. phantom3menace

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    Yeah, I typically get 15 minutes of flight time from takeoff to landing at the 25% mark. I'm too chicken to be up in the air once my batteries get to the 25% mark.