Welcome to PhantomPilots.com

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

LiPo storage for Vision Batteries

Discussion in 'Phantom 2 Vision Discussion' started by fizzviic, Dec 28, 2013.

  1. fizzviic

    Joined:
    Aug 17, 2013
    Messages:
    265
    Likes Received:
    0
    Anybody know how to safely discharge Vision Batteries for storage?
     
  2. garygid

    Joined:
    Dec 15, 2013
    Messages:
    294
    Likes Received:
    0
    Location:
    Laguna Hills, Orange county, CA 92653
    For storage, I thought that a LiPo battery should be stored full, or near full?

    I believe that I read that they should NOT be stored at or near empty.

    For many Lithium chemistry batteries (there are several major variations,
    and many subtle variations), it is usually better to store them around half
    full, I believe.
     
  3. sahair1

    Joined:
    Dec 10, 2013
    Messages:
    14
    Likes Received:
    0
    I would just put the pv2 in a hover just in front of you and watch the battery meter or view the battery percentage with the app. You can then land it when the battery gets to the level you want. Storage of the battery should be around 50%. That's what I do to get down to the 8% for a full recharge.
     
  4. PAValentine

    Joined:
    Nov 24, 2013
    Messages:
    76
    Likes Received:
    0
    Location:
    Ft. Worth Texas
    What I did was buy a 12 volt 1157 auto bulb holder and an 1157 bulb at Auto Zone. I soldered the 2 leads together so both elements would burn. Then soldered on a lead wire on the holder exterior as a ground wire. I tinned the ends of the two wires to make them solid, and insert them into the battery terminal slots. Bulbs don't care about polarity, so it doesn't matter which goes where. Then I let it burn the bulb until the battery discharged until the second led was flashing.
    It worked for me. The battery didn't seem to care what it was running. Didn't get hot or anything.

    The bulb gets hot though so don't let the bulb touch anything.
     
  5. fizzviic

    Joined:
    Aug 17, 2013
    Messages:
    265
    Likes Received:
    0
    Sounds like a neat solution. Do you have any pictures?
     
  6. urgno

    Joined:
    Nov 18, 2013
    Messages:
    237
    Likes Received:
    1
    Location:
    near Venice - Italy
  7. fizzviic

    Joined:
    Aug 17, 2013
    Messages:
    265
    Likes Received:
    0
    Thank you so much for the comment. That particular thread, which I saw, some time ago, did not answer my question to my satisfaction. Flying "on the bench" and using assistant software is rather cumbersome. That is the reason I started a new query. I sincerely hope it did not trouble you too much.
     
  8. urgno

    Joined:
    Nov 18, 2013
    Messages:
    237
    Likes Received:
    1
    Location:
    near Venice - Italy
    in fact if you go on second page you will find my pics and my way :roll:
    hope it did not trouble you too much to go to second page :mrgreen:
     
  9. fizzviic

    Joined:
    Aug 17, 2013
    Messages:
    265
    Likes Received:
    0
    I went there. And I saw your solution. I have a different charger and did not want to risk messing around with the program. If I recall, you were not using a standard LiPl discharge program, though I could be wrong. I like the solution I found on this thread regarding using a simple automotive bulb. Not as "hi-tech' as yours, but I'm only a simple retired engineer from a brushless motor design house :p and hardly in your rarefied league.
     
  10. urgno

    Joined:
    Nov 18, 2013
    Messages:
    237
    Likes Received:
    1
    Location:
    near Venice - Italy
    lol i guess we are not so far in age ;) and I'm not part of any league, just have good lipo chargers for the hely I fly

    the bulb of course is a perfect solution but be careful to use the right wattage
    and always keep one eye on leds because going too low on lipo is very bad

    on my charger in fact I'm using PB discharge program because don't need the balancer connected and can be configured on how much amps you want to draw from the battery and at what voltage to stop

    peace ;)
     
  11. iDrone

    Joined:
    Nov 14, 2013
    Messages:
    612
    Likes Received:
    2
    Location:
    Los Angeles, California USA
    As urgno said, I'd keep an eye on the gauge... I don't know if the SmartBattery is only "smart" when connected to the PV to self-terminate discharge, or whether there's a MOSFET inside the battery to break the connection standalone. One things for certain, if its the former & you're not watching, it'll be the last time you fly on that $159 battery.

    iDrone :|
     
  12. coloradosky

    Joined:
    Nov 10, 2013
    Messages:
    175
    Likes Received:
    0
    Nice work urgno and fizzviic- that conversation could have gone bad, and you both recovered like gentlemen. Good to see the respect!

    :)
     
  13. urgno

    Joined:
    Nov 18, 2013
    Messages:
    237
    Likes Received:
    1
    Location:
    near Venice - Italy
    thanks coloradosky
    well, I guess we are grown up enough to be gentleman ;)
     
  14. fizzviic

    Joined:
    Aug 17, 2013
    Messages:
    265
    Likes Received:
    0
    Well, I guess one of us is a gentleman. :p Last time I looked, I was of the "gentelwoman" breed, hehe :eek:
     
  15. gunslinger

    gunslinger Moderator
    Staff Member

    Joined:
    Nov 3, 2013
    Messages:
    2,722
    Likes Received:
    497
    Location:
    Least Coast...
    Oooooops... :oops: :oops: :oops:


    :lol: :lol: :lol:
     
  16. urgno

    Joined:
    Nov 18, 2013
    Messages:
    237
    Likes Received:
    1
    Location:
    near Venice - Italy
    between gentlemen we like to tease each other :mrgreen:

    EDIT:
    look here how wrong can go things :roll: :eek: ... can't believe there are so much "bimbominkia" around :roll:
    viewtopic.php?f=7&t=4520&start=170#p39553