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new batteries reading odd after charge

Discussion in 'Pro/Adv Discussion' started by Julius717, Jun 13, 2015.

  1. Julius717

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    So I bought 5 batteries last week. Charged them all up. Been flying and I noticed that after completing a charge it doesn't show 100% in the app, 3 of the 5 say 96% after a charge and around 4100mah , anyone else notice this ? I had a critical battery error just a fee does ago also pop up and go away. Now I'm a bit worried to fly far.
     
  2. bobmyers

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    I think I would be cautious and not put them to the test until you conditioned them for 10 flights.:)
     
  3. Julius717

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    I've never done that before. I have 6 batteries for my vision plus and never conditioned them.


    I plugged them back in and they didn't charge so I unplugged then turn the batteries on plugged back in they began charging again. So we shall see
     
  4. bobmyers

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    DJI recommends flying the batteries to 50 % for the first 10 flights to condition the cells. There are posts on this forum regarding this.;) Better safe than sorry.
     
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  5. Julius717

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    Where does DJI recommend this? Never read it directly from DJI it's all been based in opinion

    From what I've seen on here that's a recommendation based on LIPO batteries in general. I've used lipos for years never conditioned a battery.
     
  6. bobmyers

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    Check with blade strike, he can direct you to the source--- He works for DJI
     
  7. Julius717

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    Not in the manual and not in the literature that comes with the actual batteries either.
     
  8. Jbundy63

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  9. Jbundy63

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    I thought this was some pretty good information
     
  10. bobmyers

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    yes that is very good info--
     
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  11. Jbundy63

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    That is so weird! Where did you purchase them from?
     
  12. Oso

    Oso

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    I saw this exact same issue with both of my extra batteries. Only a 97% charge when charging completes. The battery that came with the P3 originally still charges to 100%. I didn't do anything differently with the two new batteries.
     
  13. bobmyers

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    I have experienced this will regular lipos tha I use in my rc planes -- get a new battery, balance charge it slowly and it never reaches a full charge. There may be a inferior cell in the pack that is causing that and you may not ever get them to reach a full charge. You might see an email to DJI support-- maybe they will warranty them-- the problem being that it will take months to get the replacements if they are defective which puts you back to square one. :confused::mad:
     
  14. pencilcoil

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    My battery didn't charge to more than 98% at first but at around 10 flights in I now get 100%. I never fly them below 40%
     
  15. loganboyd

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    Look at the voltages for each cell in the Pilot App immediately after a full charge. What are the 4 voltages?
     
  16. envisionabove

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    Need Proof! :)
    prove it.jpg busted.jpg smily.jpg

    You Turn the battery on while charging and it will go to 100%
     
    #16 envisionabove, Jun 13, 2015
    Last edited: Jun 13, 2015
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  17. zincsoldier

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    Just discharge your battery to under 8% and charge it back to 100% and see if it goes back to normal. I had this problem a few days ago and my battery dropped to 73% battery life. I did a complete discharge/charge and able to get 100% battery life back. This is the problem with the post on DJI forum as P3 battery is dynamic, it will suit itself to a condition to avoid damaging the cell.
     
  18. danjordrone

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    Question if the 10 10 theory is correct about charging a lipo where is that stated please
    I like to do my best to preserve things and will stick by this theory if its true
     
  19. Julius717

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    Well after charging them again last night everything seems good to go flew today and didn't have a single issue. Gonna be home in a bit to charge the 5 up lol only two chargers I need another one
     
  20. bobmyers

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    Sounds like you just want to debunk it-- did you watch the video from MAD RC? That gentleman knows his phantoms and probably a lot about the battery information that he published on Youtube. Here is another:

    Send an email to DJI support and see if they will give you their opinion or talk to the DJI representatives on this forum--

    I'm sure that they will give you a square answer so that you will be able to assess the "facts" to make your own mind up and maybe convince some of the experts.:) Let us know what you find out. We may all need to reassess this information.

    Cheers
     
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