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Battery Percentage Rapid Drop

Discussion in 'Pro/Adv Discussion' started by Rugby96, Apr 18, 2016.

  1. Rugby96

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    I'm new here but have been reading alot and learned alot from all the posts. I went to fly my P3P today and when I turned the battery on and looked at GO App the percentage rapidly dropped with the P3P just sitting there not running. It slowed down about 65% and I did power up and flew around a bit watching and it seemed to act normal on the percentage drop while flying.
    Any ideas?
     
  2. soulphantomflyer

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    All 4 cel have equal voltage?


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  3. Rugby96

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    Yes all were same the best I remember. I'm gonna pull the data file later tonight and see for sure.
     
  4. Rugby96

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    Checking it right now three cells 3.88 and one 3.87... Percentage is stable..
     
  5. soulphantomflyer

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    Next time you use the quad. Run the battery down to 10% or less, then fully charge it back up. That should reset the smart battery calibration.


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  6. Rugby96

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    I'll give it a shot.. Thanks!
     
  7. vadajohn13

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    I have a related question...I have the P2 Vision + with two batteries. One has performed perfectly but the other started losing power in midflight after about 12 hours of use. I have done the depletion/recharge on both of them as indicated. When I do a diagnostic the readings are comparable for both batteries at full charge, 50% charge, and almost depleted. All three cells on both batteries are similar at each stage. I noticed the problem occurred the first time at 46% charge, the second time at 63% charge, and this last time at 82% charge. I fooled around with it and figured out that the problem happens only when it's under load, i.e., in flight. If I leave it on the ground with the props turning there isn't an issue and the battery seems to discharge normally. Any Ideas?
     
  8. alokbhargava

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    Are you sure your battery didn't enter discharge state?
     
  9. Rugby96

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    alokbhargava, If that was ? towards mine I had just charged it about 2 hours prior to incident..
     
  10. vadajohn13

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    Forgive me for not replying sooner; I'm not sure what you mean by "discharge state." Can you describe this further?