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Professional Battery taking 20hrs to charge

Discussion in 'Phantom 3 Help' started by Ckin, Mar 27, 2016.

  1. Ckin

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    I'm new to the p3 pro world. For some reason my DJI batterys are talking all night to charge. The battery's have only been charged 9-11 times and show 100% health. I am using the DJI 100w charger. When unit was new the battery's charged in about an hr. I have tried to take one batt down to the 8% but that does not help. I have also tried charging with power on. Still no good. All lights flashing like they should. Please help.
     
  2. Sinisalo

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    try a new outlet to plug into or try a new charger, process of elimination. It wouldn't be the batteries unless both were faulty at the same time which is not likely
     
  3. Ckin

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    wow thanks for the prompt reply. I have tried a different outlet. No diff. I guess I will go and buy a new charger and try. I bought this unit brand new and have only flown it about 12 times
     
  4. mdowney58

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    You haven't said, but are you by chance charging more than one battery at the same time?

    Sent from my SM-N910V using Tapatalk
     
  5. Ckin

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    No I am only charging 1 batt at a time. Nor am I trying to charge the RC at the same time. I just measured the output voltage of the charger and it reads 17.2vdc which according to the label on the charger should be correct. Oh and this happens with both of my battery's.
     
  6. mdowney58

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    Was that output voltage measurement taken while under the load of a battery connected to it?

    Sent from my SM-N910V using Tapatalk
     
  7. Ckin

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    no the 17vdc was with no load. When charging the battery I measured (just now) the voltage using the free RC connection it read 15.2vdc.
     
  8. garykeithmead1

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    Does it charge th r/c ok ?.
     
  9. PEEFA

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    You need to check amps drawn from charger while charging the battery. I would say the charger is goosed sorry sir


    Sent from my iPhone using PhantomPilots mobile app
     
  10. Ckin

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    Thanks everybody. I broke down and bought a new DJI 100w charger today. Everything works just as it should. So it was a bad charger :(.