iPad Pro 29W Fast charging tests and 3rd party adapters

Discussion in 'iPad' started by masotime, Jun 20, 2017.

  1. d5aqoëp macrumors 6502a

    d5aqoëp

    Joined:
    Feb 9, 2016
    #476
    What is the expected charging time for charging an iPhone X using official Apple 30W USB-C charger and official USB-C to lightning cable?

    I just received one and I suspect it is charging slowly. It charged my iPhone X from 50% to 100% in 1 and half hrs. I expected better.
     
  2. jsmitty macrumors 6502

    jsmitty

    Joined:
    Sep 18, 2016
    Location:
    NC
    #477
    I'm pretty sure the first 50% goes faster than the last.
     
  3. Peter K. macrumors 6502a

    Peter K.

    Joined:
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    Location:
    SoCal / Philly
    #478
    You are correct. To protect the battery, charging speed slows considerably as the percentage increases.
     
  4. pepperjobs macrumors newbie

    pepperjobs

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    Nov 18, 2018
    Location:
    Hong Kong
    #479
    The new iPad Pro quick charge should be around 36w max, we have tested with our PD power bank, PD car charger, and PD desktop charger and they all give a similar figure.
     

    Attached Files:

  5. masotime thread starter macrumors 68020

    masotime

    Joined:
    Jun 24, 2012
    Location:
    San Jose, CA
    #480
    Nice! You have the Power Z meter - I ordered the same off eBay, waiting for it to arrive.

    I can corroborate the same, based on some quick findings:

    Code:
    +------+---------+---------+-------+
    | Batt | Voltage | Current | Power |
    +------+---------+---------+-------+
    |  3%  | 14.3V   | 2.38A   | 34W   |
    |  12% | 14.3V   | 2.36A   | 33.7W |
    |  29% | 14.2V   | 2.54A   | 36W   |
    |  62% | 14.3V   | 2.35A   | 33.6W |
    |  80% | 14.4V   | 1.57A   | 22.6W |
    |  86% | 14.5V   | 1.09A   | 15.8W |
    |  90% | 14.5V   | 0.83A   | 12W   |
    +------+---------+---------+-------+
    
     
  6. HuskerHarley macrumors regular

    HuskerHarley

    Joined:
    Oct 28, 2017
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    Lincoln
    #481
    What is the best charger for an XS-Max?
     
  7. masotime thread starter macrumors 68020

    masotime

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    Location:
    San Jose, CA
    #482
    I believe the X series supports charging up to 18W max using a profile of 9V/2A - basically any "Power Delivery" charger that supports at least 18W should be sufficient. You'll still need a USB-C to lightning cable that supports PD though - at the moment Apple's is the only safe choice, although Apple will start certifying third-party ones soon.
     
  8. Karren1987 macrumors newbie

    Karren1987

    Joined:
    Nov 18, 2018
    #483
    With the 30W Adapter? How long down it take to fully charge the iPad?
     
  9. HuskerHarley macrumors regular

    HuskerHarley

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    Oct 28, 2017
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    Lincoln
    #484
    The charger that came with my XS-Max is 5V. Is the cable USB-C rated? It has a USB connector on one end.
     
  10. masotime thread starter macrumors 68020

    masotime

    Joined:
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    #485
    No, this is with a 60W adapter. I didn’t take timings stats unfortunately

    The charger that comes with the XS Max is woefully inadequate unfortunately, and doesn’t come with a USB-C cable. You’ll have to buy both separately.

    You can buy this charger if you don’t want to buy the Apple one - https://www.amazon.com/Anker-Delivery-PowerPort-Indicator-Foldable/dp/B07GWNYC4W
     
  11. HuskerHarley macrumors regular

    HuskerHarley

    Joined:
    Oct 28, 2017
    Location:
    Lincoln
    #486
    After I posted the Q, I searched for info on a USB-C...A big difference with the connectors.

    I'm gonna order that charger...Guess have to order from apple the USB-C-Lighting.

    Thank-U!
     
  12. Karren1987 macrumors newbie

    Karren1987

    Joined:
    Nov 18, 2018
    #487
    is the Apple 60W one charging the iPad Pro faster than the 30W one?
     
  13. masotime thread starter macrumors 68020

    masotime

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    Jun 24, 2012
    Location:
    San Jose, CA
    #488
    Ah... it's not that simple. I didn't use the Apple 60W charger. I used a USB-C Power Delivery charger which supports the 15V profile @ 4A = 60W.

    The 2018 iPad Pros draw up to 20% more power than the previous ones - but in practice I am guessing it will charge maybe 10-15% faster. As long as you get a USB-C PD charger that supports the 15V profile up to at least 3A (45W) you don't need anything faster, but honestly the 30W charger should be fast enough for most.
     
  14. HuskerHarley macrumors regular

    HuskerHarley

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    #489
    If I order a 30W instead of the 15W, Will it harm my XS-Max? I have a couple of iPads I wouldn't mind being able to charge faster but don't wanna harm the phone.
     
  15. pepperjobs macrumors newbie

    pepperjobs

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    Nov 18, 2018
    Location:
    Hong Kong
    #490
    The Apple 60W charger is not faster because it doesn’t have 15V output.
    (Versus the dual-C charger that we are going to release)
    0F5D46E0-4585-44DC-B808-86221D8418BF.jpeg
    E23BA621-7AB1-47B8-9BFD-F3A449A2ABBC.jpeg
     
  16. Karren1987, Nov 18, 2018
    Last edited: Nov 18, 2018

    Karren1987 macrumors newbie

    Karren1987

    Joined:
    Nov 18, 2018
    #491
    Ok, thank you. It would be great to get the charging time with the 60W adapter. Then people can better decide if such an adapter is worth the money. If you like to share...?
    --- Post Merged, Nov 18, 2018 ---
    Now, I am totally confused! The 30W has 15V, but the 60W does not?
     
  17. pepperjobs macrumors newbie

    pepperjobs

    Joined:
    Nov 18, 2018
    Location:
    Hong Kong
    #492
    You guys like the PowerZ KM001C?
    I have two KM001C, one KM001, one KT001, one FL001C and a powerphase meter, etc. ;)


    --- Post Merged, Nov 18, 2018 ---
    It doesn’t have 15V profile, so 9V/3A max for the 61W adapter, by the way our power bank can do about 36W as well as I’ve tested it personally!
    --- Post Merged, Nov 18, 2018 ---
    15V/4A isn’t a “legal” PD profile.
    It should be 15V/3A or 20V/3A, according to USB-IF’s definition.

     

    Attached Files:

  18. Karren1987 macrumors newbie

    Karren1987

    Joined:
    Nov 18, 2018
    #493
    Ok, I understand. The Apple 60W adapter do not support 15V, but the Apple 30W Adapter and some devices from other manufacturers do. And why do you get only 36W when your powerbank should spend 45 W to the iPad Pro?
     
  19. masotime, Nov 18, 2018
    Last edited: Nov 18, 2018

    masotime thread starter macrumors 68020

    masotime

    Joined:
    Jun 24, 2012
    Location:
    San Jose, CA
    #494
    The voltage is fixed, but the current is not. So at 15V, it sends up to 3A, but not necessarily always 3A. When the iPad Pro battery is at a high percentage, for example, the current goes down, and hence the power delivered. However, the iPad Pro even at 0% will not take more than 36W, or 15V @ 2.4A
    --- Post Merged, Nov 18, 2018 ---
    Can you elaborate? What brand / company are you from?

    EDIT: Nevermind, did a quick google:

    http://pepper-jobs.com/en/shop/cate/pd-charging

    What specs will your dual USB-C charger have?
     
  20. masotime thread starter macrumors 68020

    masotime

    Joined:
    Jun 24, 2012
    Location:
    San Jose, CA
    #495
    There is no harm. The USB-C PD standard involves an initial "negotiation" with the device being charged - it will ask the device what levels of power it can tolerate, and it will not go above what the device can accept. You could get a 100W charger and charge your iPhone XS Max without issues.

    Generally the bigger issue is if the third party charger you're using is made with high quality components - if not then yes, you could have issues e.g. device on fire etc. - it would be wiser to spend a little more on a reputable brand like Apple's original or Anker etc. if you feel unsafe.
     
  21. HuskerHarley macrumors regular

    HuskerHarley

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    Lincoln
    #496
    Thanks for the information. I appreciate the simple explanation that even a caveman would understand!
     
  22. pepperjobs macrumors newbie

    pepperjobs

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    Nov 18, 2018
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    Hong Kong
    #497
    please check PM, I don't want to "advertise" here. :)
     
  23. Beards macrumors 6502a

    Beards

    Joined:
    Mar 22, 2014
    Location:
    Derbyshire UK
    #498
    I ran a few tests using the following:-
    iPad Pro 12.9”
    Apple 18W Charger and 3ft cable that comes with the iPad Pro
    Apple 29W Charger and an Anker 6ft cable
    Ineteck 60W Charger and an Ineteck 6ft cable

    For the test I left the iPad Pro 12.9” switched Off for the duration of the test.
    As I had 2 different 6ft USB-C to USB-C cables (Anker & Ineteck) I ran the test twice on the Ineteck 60W Charger.
    As the initial charge using the Apple 18W with 3ft cable took 20mins to reach a 10% battery increase I therefore let the other tests run up to 20mins and took readings at the 20min mark.

    What was noted was that it did not matter if it were the 29W or 60W chargers and either of the 6ft USB-C cable, the duration and percentage results remained the same.


    Hardware........................................Start%...End%...Duration......Percentage to 20mins

    Apple 18W with Apple 3ft Cable............60.........70.......20mins

    Apple 29W with Anker 6ft Cable............60.........70.......12mins............60...76.....20mins

    Ineteck 60W with Ineteck 6ft Cable.......60.........70.......12mins............60...76.....20mins

    Ineteck 60W with Anker 6ft Cable.........60.........70.......12mins............60....76.....20mins
     
  24. zhenya macrumors 603

    zhenya

    Joined:
    Jan 6, 2005
    #499
    I suspect you were at too high a charge to see the advantage of the Ineteck - both were likely tapered to below 30W. At a lower starting point the Inateck should give an extra 6W. But not a major difference either way.
     
  25. Beards macrumors 6502a

    Beards

    Joined:
    Mar 22, 2014
    Location:
    Derbyshire UK
    #500
    Yes, I thought of doing the tests at differing starting percentages but instead opted for a balanced mid-range test ~ hence 60 to 70%.

    I have though used both chargers (29W & 60W) from low to high charge and found it difficult to set them apart. I don't think the iPad Pro draws much more than the 29W charger.
    However, as it stands the Ineteck 60W is cheaper to purchase than both the old 29W and newer 30W charger AND the Ineteck comes with a free 6ft USB-C cable which you would have to purchase as an additional extra from Apple.
     

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