Welcome to YuneecPilots.com!

Sign up and join the fastest growing Yuneec drone community.

  1. David Armstrong

    Joined:
    Jun 8, 2016
    Messages:
    234
    Likes Received:
    57
    What are some early warning signs that a battery might be going bad?
    I currently have 4 batteries.
    The original battery that came with my bird seems to have a slight (very slight, but is enough to notice when you feel across the top flat portion and compare to my newer batteries) amount of bulging.
    I have only flown with it maybe 10 times and I have only had the copter for about 3 months.
    I also try to follow the charging guidelines very closely.
    This may be normal for these batteries, but I would hate to ignore an early warning sign and find out when my bird falls from the air.
     
  2. hatfield

    Joined:
    Jun 28, 2016
    Messages:
    56
    Likes Received:
    14
    I would discontinue using it.
     
  3. BillyTexas

    Joined:
    Aug 2, 2016
    Messages:
    617
    Likes Received:
    168
    You have a 6 month warranty. Call yuneec for a replacement.

    Bill W.
     
    Brian Mackey likes this.
  4. Brian Mackey

    Joined:
    Aug 3, 2016
    Messages:
    1,001
    Likes Received:
    284
    Location:
    Eagle Idaho
    speaking of guidelines, do you know what the storage voltage is for the H battery?
     
  5. BillyTexas

    Joined:
    Aug 2, 2016
    Messages:
    617
    Likes Received:
    168
    I would imagine like any other lipo. 3.85 per cell.

    Bill W.
     
  6. Brian Mackey

    Joined:
    Aug 3, 2016
    Messages:
    1,001
    Likes Received:
    284
    Location:
    Eagle Idaho
    All Lipos the same then? That seems odd.. But, Thank you :)
     
  7. BillyTexas

    Joined:
    Aug 2, 2016
    Messages:
    617
    Likes Received:
    168
    They all have the same chemistry. Yuneec probably dosent have this info in the manual because they did not provide a way to achieve storage charge.

    Bill W.
     
  8. Brian Mackey

    Joined:
    Aug 3, 2016
    Messages:
    1,001
    Likes Received:
    284
    Location:
    Eagle Idaho
    got it :)
     
  9. BillyTexas

    Joined:
    Aug 2, 2016
    Messages:
    617
    Likes Received:
    168
    I guess thats where a smart battery comes in handy.

    Bill W.
     
  10. QuadBart

    Joined:
    Jan 19, 2016
    Messages:
    356
    Likes Received:
    111
    Location:
    USA
    I've flown some of my other drones with slightly bulging packs before. Not like "swollen" but a teeny bit puffy and had no issues with regard to flight times or sudden loss of power. I'd watch the numbers for each cell after use, before charging, and at full charge. There did not seem to be any cell performing out of spec... They stayed this way for quite some time and didn't have any issues..

    BTW, I not telling you they are okay and go fly. Just relaying my experience and that as long as mine aren't swelling any more, cell numbers looks good, and I'm not noticing any odd behavior I'll use mine....
     
  11. BillyTexas

    Joined:
    Aug 2, 2016
    Messages:
    617
    Likes Received:
    168
    Ive done the same on my fixed wing aircraft with no priblems...but yes be cautious.

    Bill W.