01-15-2019 09:42 AM
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  1. kwlaznkid's Avatar
    Hi everyone

    first off let me just say I am not a techy or have much knowledge at all in terms of technology so please excuse me if this is a simple or stupid question.

    I have a samgsung s9+ and i have been having problems getting the quick charge to work on my car charger and portable battery, with the stock cable wall unit it obviously works great but I have a car charger and portable battery that I used for my previous s7 and the quick charge worked great with both those chargers, i simply replaced the micro usb cable with a usb c cable in hopes of using those two chargers for my s9 but not only does it not have quick charge it's extremely slow (we're talking 8 hours to get full charge)

    so i did some searching and some people said it could be the aftermarket cables so I tried using the stock cable from the s9+ with the portable battery and it still is the same result. Once again the portable battery and car charger were both capable of quick charge with my s7 and have a 2.0 output (i believe), is that the reason i can't get quick charge on my s9? is 2.0 output not strong enough for the s9?

    thanks for the help this is frustrating me quite a bit
    Medicmib10 likes this.
    04-06-2018 05:42 PM
  2. Thegreatone3's Avatar
    My S9+ also seems to be much more picky with what devices it will accept for "Fast Charging." The same QuickCharge 3.0 third party chargers and cables that I used with my S8 (and V30) will start out with a "Fast-Charging" message on the screen but will soon revert to "Cable Charging". This includes reputable brands such as Anker, Aukey, and Ravpower. I'm trying to find out something definitive as to why this is happening. Perhaps Samsung is playing it super safe with the S9? Their stock Adaptive Fast Chargers all work fine.
    04-06-2018 05:59 PM
  3. SpookDroid's Avatar
    You need to make sure the chargers are either Samsung's Fast Charge compatible or Qualcomm's Quick Charge 2. You might have to change your chargers or contact the vendor to see if they have tested with an S9 (the charger itself for the S9 did change from previous versions).
    04-06-2018 06:01 PM
  4. andrew kb's Avatar
    I have the same problem. It's super annoying because I just bought a second car charger both are qc 3.0 and niether work fast charging tho it's pretty fast for no fast charge. They both worked for my s6 edge. My portable battery however still works. It's an akoolz power bank which is discontinued now. I have a qc 3.0 wall outlet(built into the wall) and it won't fast charge either. I tried using the usb c outlet on it and same thing. It displays fast charging for 5 seconds and then goes to cable charging. Super annoying. I'm wondering why the power bank still works and the rest don't. My stock charger and that power bank are the only ones that work. Cables don't make a difference. I tried safe mode and it's no difference.
    Thegreatone3 likes this.
    04-06-2018 06:04 PM
  5. jgreg02's Avatar
    I am an old engineer, and while I have no facts, my suspicions are that Samsung has tightened up the electronic control over charging these lithium batteries. Remember it was not long ago that they had a big recall about exploding notes. It may be that the chargers which worked on the 7s, just don't meet their current requirements to be safe.

    Recently my Gear S3 displayed a message that it stopped charging because it got too hot. I called Samsung and they had me send it in immediately. They replaced the battery in it.
    PeninaD likes this.
    04-06-2018 06:14 PM
  6. Thegreatone3's Avatar
    I am an old engineer, and while I have no facts, my suspicions are that Samsung has tightened up the electronic control over charging these lithium batteries. Remember it was not long ago that they had a big recall about exploding notes. It may be that the chargers which worked on the 7s, just don't meet their current requirements to be safe.

    Recently my Gear S3 displayed a message that it stopped charging because it got too hot. I called Samsung and they had me send it in immediately. They replaced the battery in it.
    If so, you would think they would let their customers know which accessories are fully supported so we don't waste money.
    04-06-2018 06:27 PM
  7. Mooncatt's Avatar
    If so, you would think they would let their customers know which accessories are fully supported so we don't waste money.
    Actually, it's the third party manufacturers that have to design their products to meet OEM specs. It's rare that an OEM (be it for phones or anything else) will officially claim support of a third party. For one, the OEM can't control what the third party manufacturer does, so there's the liability issue. Second, Samsung wants to sell Samsung accessories, not third party accessories.
    SpookDroid likes this.
    04-06-2018 06:58 PM
  8. kwlaznkid's Avatar
    well I guess the only upside to this is that we're all in this together it seems lol, let's keep sharing information with each other till we can all find a solution I may order a few chargers off amazon to see how they work, I'll share links if I have any success
    04-06-2018 08:02 PM
  9. irock1985's Avatar
    I have multiple QC 2.0 and 3.0 Chargers and they all work just fine
    PeninaD likes this.
    04-06-2018 08:33 PM
  10. MtnJim's Avatar
    I don't know about your S7, but the one my new S9 replaced didn't have Fast Charge. The car charger and battery might not be Fast Charge capable (reguardless of cable). I just bought a new battery that is capable and it has two outputs (actully 3 but I don't count the Lightning since I don't have Apple), one standard and one Fast Charge 3.0.
    04-06-2018 09:26 PM
  11. rimz808's Avatar
    Does anyone recommend any good quick charge for the car?

    Saw this on Amazon: https://www.amazon.com/Meagoes-Charg...cUvbUpU6215780

    Any other recommendations?
    04-06-2018 09:38 PM
  12. lucianus_luciferus's Avatar
    i am using my old galaxy S6 charger and it works fine in fast charge mode
    something like THIS
    obviously you will need to use your own usb 3 lead because this one has a usb 2 lead
    04-07-2018 07:43 AM
  13. Thegreatone3's Avatar
    well I guess the only upside to this is that we're all in this together it seems lol, let's keep sharing information with each other till we can all find a solution I may order a few chargers off amazon to see how they work, I'll share links if I have any success
    Well, the Ravpower 6-port charger with one QuickCharge 3.0 slot is one example of a charger that does NOT work with fast charging for the S9+.

    USB Quick Charger RAVPower 60W 6-Port Quick Charge 3.0 Fast Charger Desktop Charger Charging Station for Galaxy S8/S7/S6/Edge, Note 5 and iSmart for iPhone x/8/8 Plus/7/6s/Plus, iPad, LG, Nexus 6, HTC https://www.amazon.com/dp/B01NAG3V8E...cUvbUpU6217064

    My USB tester showed the following: From 40-80%, the stock charger pulls 12W while the QuickCharge 3.0 port on the Ravpower pulls 6.87-7.4W. The non-QuickCharge port (iSmart) actually did better at 8-8.5W. Used the same OEM cable for all. The QuickCharge port actually triggers the "Fast Charging" message on the screen for a few seconds, but it quickly reverts to "Cable Charging."

    Sucks for me because I had three of these (home, work, and in my backpack) and they worked great with my LG V30. Really would like someone to confirm a multi-port charger that fast charges the S9/S9+.
    04-08-2018 12:34 PM
  14. afh3's Avatar
    The QC/2/3 chargers in my possession number near a dozen or so - between 12VDC car models, multi-port chargers and single-port chargers. I've yet to own one that does not provider fast-charge to my QC-compatible batteries and phones.

    Sadly, most of them are a year or more old and are listed as "no longer available" on Amazon - so I will post no links.

    The brands, however, are Choetech, Anker and Aukey. If you are looking for models that work, I would start there.
    04-08-2018 03:17 PM
  15. andrew kb's Avatar
    Fhe same problem. It's super annoying because I just bought a second car charger both are qc 3.0 and niether work fast charging tho it's pretty fast for no fast charge. They both worked for my s6 edge. My portable battery however still works. It's an akoolz power bank which is discontinued now. I have a qc 3.0 wall outlet(built into the wall) and it won't fast charge either. I tried using the usb c outlet on it and same thing. It displays fast charging for 5 seconds and then goes to cable charging. Super annoying. I'm wondering why the power bank still works and the rest don't. My stock charger and that power bank are the only ones that work. Cables don't make a difference. I tried safe mode and it's no difference.
    04-08-2018 03:18 PM
  16. Thegreatone3's Avatar
    As for using USB Power Delivery, it seems to be capped at around 10W. Still, it's pretty decent charging speed.

    http://www.chargerlab.com/2018/04/03...the-galaxy-s9/
    04-08-2018 10:47 PM
  17. Jaycemiskel's Avatar
    As for using USB Power Delivery, it seems to be capped at around 10W. Still, it's pretty decent charging speed.

    http://www.chargerlab.com/2018/04/03...the-galaxy-s9/
    Wonder if they're still scared of explosions. I use my USB PD dell charger and it still works pretty quickly. It even states that it's fast charging
    04-09-2018 11:22 AM
  18. chanchan05's Avatar
    If you're looking for third party that works with Samsung: Anker, Aukey, Tronsmart.
    04-09-2018 11:28 AM
  19. Thegreatone3's Avatar
    This Aukey wall charger also won't fast charge my S9+. Maxes out at around 6-7W.

    AUKEY USB C Charger with 30W Power Delivery 2.0 & 18W Quick Charge 3.0 USB Wall Charger for iPhone X/8, MacBook/Pro, iPad Pro, Samsung Note8 and More https://www.amazon.com/dp/B076VTVH5H...cUvbUpU6218150
    04-09-2018 03:28 PM
  20. Shaunda12's Avatar
    I got this for my S9+ and it has been working fine so far.

    https://www.amazon.com/gp/aw/d/B0781...cUvbUpU6218291
    04-09-2018 05:49 PM
  21. KP8819's Avatar
    As for using USB Power Delivery, it seems to be capped at around 10W. Still, it's pretty decent charging speed.

    http://www.chargerlab.com/2018/04/03...the-galaxy-s9/
    Good to know... I wonder if Samsung is capping that at 10W? The new Power Delivery(PD)3.0, that the S9 went with, specs state up to 100W. The Pixel 2 & 2XL will work with up to 27 watt charging accessories but it’s capped at just 18 watts... 10W is still good but I wonder if that will change or if new chargers will come out allowing for more wattage/faster charges - Qualcomm QC4 is up to 36W for reference.
    04-10-2018 12:56 AM
  22. kwlaznkid's Avatar
    quick update- so i bought this car charger, i get quick charge with it using the OEM cable but NOT with the afermarket cable I bought which clearly means that cables do matter

    https://www.amazon.com/gp/product/B0...cUvbUpU6223881
    SpookDroid likes this.
    04-16-2018 05:57 PM
  23. andrew kb's Avatar
    could be just that cable. use an aftermarket cable and it works fine with my power bank. but neither the oem or the aftermarket cable work with my car charger. both cables work with the oem wall block . check if your cable is fast charge compatible.
    04-17-2018 09:46 PM
  24. Mtro's Avatar
    USB cables go bad all the time. Some really quick after purchase. I find the quick charge car chargers fail rapidly too. But usually it's the cable.
    04-18-2018 03:50 PM
  25. kwlaznkid's Avatar
    so i paired these cables https://www.amazon.com/gp/product/B0...cUvbUpU6226248

    with my old car charger and new car charger ( https://www.amazon.com/gp/product/B0...cUvbUpU6226248) and both chargers get fast charge now, but even with the new cable i don't get fast charge on my portable battery, so cable definitely plays a huge factor
    04-19-2018 02:34 PM
30 12

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