Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

Should I be concerned. ???

Discussion in 'Pro/Adv Discussion' started by AIRNUTS, Dec 18, 2015.

  1. AIRNUTS

    Joined:
    Oct 14, 2015
    Messages:
    123
    Likes Received:
    53
    This battery is 2 months old, never been below 30% discharge and is been charge 16 times, I just checked the battery on healthty drones and this is what I see, should i be concerned, by the way on DJI go app all cells show the same voltage
     

    Attached Files:

  2. alokbhargava

    Joined:
    Sep 28, 2015
    Messages:
    5,153
    Likes Received:
    1,665
    Location:
    San Francisco, CA
    Charge to 100% then discharge to 8% then charge to 100% and check the cell voltage differences.
     
  3. AIRNUTS

    Joined:
    Oct 14, 2015
    Messages:
    123
    Likes Received:
    53
    I will do that, thanks
     
  4. Flying Dutchman

    Joined:
    Aug 23, 2015
    Messages:
    139
    Likes Received:
    41
    Location:
    Netherlands
    There is nothing wrong with your battery, you will see next time there will be nothing too see. Its normal that one, two ore even three instances on the same cell can have this. Its something else as the battery has more than five instances. Just keep track of the battery. Its not that the cell was low on voltage all of the flight time. There was just an instance. So thats why its not showing at the dji Go app.

    Understand lips batteries in cold weather. From DJI...

    Flying DJI aircraft in winter can be fun, but we have heard that some of our users have experienced issues when flying in cold weather. Did you know that as the temperature drops, so does the performance of the LiPo battery inside your aircraft? Read on to find out how to look after your battery and keep yourself in the air.

    The Science

    LiPo, or Lithium Polymer batteries drain faster the colder they get because the chemical reactions that they use to create electricity are slowed. This starts to occur at temperatures lower than 59°F (15°C) and is a known issue of all LiPo batteries.
    At high altitudes where air pressure is low, motors on an aircraft have to spin faster to produce enough lift, meaning even more power is needed, in turn accelerating battery drain.

    What this Means

    In extreme cases, a battery could drain below 3V, causing reduced thrust or even battery shutoff due to over-discharge protection systems designed to keep your battery healthy.

    Hot Tips for Beating the Cold

    1. Make sure batteries are fully charged before each flight.
    2. Warm batteries to 25°C or more before flight. We recommend using a battery heater.
    3. Hover the aircraft for around a minute to allow the battery to warm up.
    4. Turn on “Show Voltage on Main Screen" on the "Aircraft Battery" page of the DJI Go app. Do not continue flying if battery voltage drops below 3.2V.
     
    #4 Flying Dutchman, Dec 19, 2015
    Last edited: Dec 19, 2015
    Darmie likes this.