iPad Pro Have the 29w usb-c charger, but ipad still loses battery %

Discussion in 'iPad' started by Drecca, Nov 19, 2016.

  1. Drecca macrumors regular

    Joined:
    Aug 30, 2010
    #1
    So I bought the 29w USB-C charger and a usb-c to lightning cable so that I can use the iPad pro 12 without it losing battery power while in use. However it's still slowly going down.

    What am I doing wrong? I read that if you use the 29w charger this shouldn't happen...
     
  2. Precursor macrumors 6502

    Precursor

    Joined:
    Sep 29, 2015
    Location:
    Istanbul
    #2
    Did you purchase Apple's USB-C to lightning cable or a 3rd party?
     
  3. iRaynor SK macrumors 6502

    iRaynor SK

    Joined:
    Nov 15, 2014
    Location:
    Slovak Republic
    #3
    Same here. Solution: let keep iPad on charger. You may experience battery drain for example from 90% to 84% while on charger, but later it will charge correctly to 100%. Just keep iPad on charger even if percentage goes down. Just wait and keep it on charger :)
     
  4. masotime macrumors 68000

    masotime

    Joined:
    Jun 24, 2012
    Location:
    San Jose, CA
    #4
    It doesn't. Where did you buy them from? If you didn't buy them directly from Apple or a store like Best Buy, there's a good chance it is counterfeit.
     
  5. iRaynor SK macrumors 6502

    iRaynor SK

    Joined:
    Nov 15, 2014
    Location:
    Slovak Republic
    #5
    As for me, I have original charger with original USB-C cable, both from Apple Premium Reseller, and I have that battery issue too, as I said earlier in this topic.
     
  6. ABC5S, Nov 20, 2016
    Last edited: Nov 21, 2016

    ABC5S Suspended

    ABC5S

    Joined:
    Sep 10, 2013
    Location:
    Florida
    #6
    Mine does as well, however sometimes it doesn't. It depends in what medium I'm watching. Some simple games then it's no, however if I'm watching a movie it might lose a few percentage points.
     
  7. masotime macrumors 68000

    masotime

    Joined:
    Jun 24, 2012
    Location:
    San Jose, CA
    #7
    One possibility is that the charger uses 12W charging when you plug it in at > 90% capacity. If you have the time - do you consistently see a battery drain if you plug it in and use it when it was < 90% when you plugged in?

    One thing to note about charging in general is that the speeds tend to taper off when the battery is almost fully charged. It could be that the power supply itself may be switching to a lower charging speed in order to prevent damage to the battery when it detects it is almost at full capacity.
     
  8. rkuo macrumors 6502a

    Joined:
    Sep 25, 2010
    #8
    Also, don't set your brightness at 100 pct.
     
  9. MCube74 macrumors 6502a

    Joined:
    Nov 22, 2010
    Location:
    Hong Kong
    #9
    Is it safe for the battery to charge IPad Pro 12.9" with 29w USB-C charger?

    I ask an Apple Rep today and he was against me buying it. Said it will hurt the battery and to stick with 12W charger.
     
  10. gnasher729 macrumors P6

    gnasher729

    Joined:
    Nov 25, 2005
    #10
    That is strange for two reasons. One, it's a USB charger. With a USB charger, the device has to tell the charger how much power it wants, and that's what the charger does. If you connect your 5Watt iPhone to the 29Watt charger it will get 5Watt. And even without that, the iPad would take exactly as much charge as it wants.
     
  11. MCube74 macrumors 6502a

    Joined:
    Nov 22, 2010
    Location:
    Hong Kong
    #11
    I also thought so but strange why the sales rep suggested me not to get it. May be there were some issues which I didn't know and that is why I asked here.
     
  12. MCube74 macrumors 6502a

    Joined:
    Nov 22, 2010
    Location:
    Hong Kong
    #12
    I went to the Apple Store again today. I had to buy the Osmo game for my 5 year old daughter.

    I asked the Apple Rep again regarding the 29W charger and they said that if I use the charger it may hurt the battery in the iPad Pro.

    They said the the charger will work for the iPad Pro but it is not recommended.

    I am in Hong Kong. Is this what the Apple Reps inform in the US, too?

    I do want to get the charger but if the Apple Rep suggests me not to use the 29W charger and to only use the 12W charger, I am wondering if Apple has had issues with clients returning their iPad Pro for battery issues.
     

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