Oneplus 9 series - Finding your backup charger and what speed to expect

  1. Swejuggalo
    OnePlus 9 Series Expert Community Expert Apr 18, 2021

    Swejuggalo , Apr 18, 2021 :
    Sometimes you may not have your original charger nearby. You might be sitting on a train and all you got are some 5V2.4A USB port nearby that might not even work due to various abuse and having been victim of being filled with chewing gum countless times (by pure luck you happen to a A to C cable with you and you decide to try your luck). You might even have some battery pack with you that kind of feels overkill sometimes but sure comes in handy those moments you see the phone laughs at with a beep and entering battery saving mode due to having forgotten to charge before the trip and there are several hours before you can reach a wall outlet.
    You might be visiting someone far away from home and forgot your charger and will be spending the night before getting home. Your friend/parents/special person* may not be as high tech as you and definitely does not own a Warp 65. You end up staring at a 4-5 year old charger as your only savior. The only good thing about it is the USB-C port! Emergency situation solved you may think. Well, kind of.

    So, here is special thread with the only purpose to post your results of various chargers so other people won't feel the urge to try it themself (or do they now because of my test post?). It can be original, 3rd party, wired, wireless (with or without cases on).
    My tests below are made at around 20% to allow max speeds. Above certain level the max capable speed may be different. The are grabbed with the app Ampere. I left it connected just the amount of time necessary to allow the value to stabilize. Feel free to use Ampere or any other app to post your own results, as long as you KNOW it is showing TRUE values and does not include a buggy double currents result or similar.
    I will add a few more that I forgot to test (yeah, chocking. Almost 40 so yeah. Senile soon)

    A quality charger should not harm your phone. But depending on what charge they can deliver I would not recommend using some of the alternatives below to charge over night. Some of them won't even finish a charge.

    Tests are done on 9 Pro Whenever original cable was possible it was used.

    Good old fashion USB 2.0 port. I highly doubt it will go that far at all. USB 3.0 does not look that promising either.
    Screenshot_20210418-175524.jpg Screenshot_20210418-175642.jpg

    An old Sony 5V1.5A. Can't recommend either.

    Motorola Turbo Charge 15W. I wonder how it will do at above 80%...

    Samsung "Super fast charging" *hrm* that is bundled with S20 series.

    Samsung "Super duper fast charging" that is bundled with S21 series.
    *Test not possible due to lack of charger*

    *Trigger warning* iPad 20W - yeah, I know, practically blasphemous have it inside my Oneplus backpack.

    Warp 30 cable

    Warp 30 Wireless (Sandstone case on)

    Warp 50 Wireless (Sandstone case on)

    Warp 65 cable

    (some level of humor may have been included above)

    McJader, rHITkM., WakeAwake and 4 others like this.
  2. Swejuggalo
    OnePlus 9 Series Expert Community Expert Apr 19, 2021

    Swejuggalo , Apr 19, 2021 :
    Semi-senile todo list

    Belkin car charger (dual port/standards)
    *full name will be a surprise (for me too)*

    Mophie XXL battery pack (dual port/standards)
    *because size matters*

    TP-Link battery pack (some crap wife use)
    *don't know why... but it was free*

    Belkin Boost UP 10W wireless (has been in contact with some Samsungs)
    *cheap and probably sucks*

    USB-A Fast Charging port (the port I forgot I had)
    *I suspect it lies about being fast*

    Samsung S21+ reverse charging (ew... Do I have to?)
    *I have cleaning wipe ready for it so don't worry*

    Oneplus 9 Pro reverse charging an Oneplus 9 Pro (R-rated)
    *Does this mean a 9 or an 9R will be born?*

    That it. My final list...Unless I have forgotten more hidden treasures.
    Will attach the results whenever they are done.

    Fill up with more results...if you want, are bored, have too much time or simply just want to annoy your partner by trying to find all the possible chargers you have but don't really need.

    (Humor is not forced to use...but how could a charger thread otherwise become fun?)

    rHITkM. likes this.
  3. JayGoat
    Donut Apr 21, 2021

    JayGoat , via OnePlus 9 Pro , Apr 21, 2021 :
    The battery started out around 30% when theses picture were taken and rose to about 40% by the time I was done. The phone temperature at the start was 72°F.

    So I'm going to start off with the original 65w charger used with the original cable, a 1.5 foot Belkin 100w cable, and a 3 foot Cable Creations 100w emarker cable. The original charging brick really doesn't like the Cable Creations emarker cable but also charges slower with the Belkin cable.




    Next up was a 45w Aukey PD 3.0 charger. Again used the 3 cables I listed above. This is where this phone runs into issues as it won't charger higher then 17w with any other charger.




    Next is a fully charged ZMI 20000mah battery that outputs 65w PD 3.0 with PPS. Same 3 cables used and same issue with only 17w.




    Lastly, for some fun, I plugged the ZMI into the 50w wireless charger to see how it works cause OnePlus claims you can use a 65w PD 3.0 charger on these. Luckily, this charger works correctly with PD charging unlike the 9 Pro when wired directly.




    So despite the 2.3.3 update that fixed some PD charging issues, it definitely didn't fix them all and there still something not right.

  4. Caomhin
    OnePlus 9 Series Expert Community Expert Apr 23, 2021

    rHITkM., navidsina and Swejuggalo like this.
  5. navidsina
    Donut Apr 23, 2021

    navidsina , via OnePlus 9 Pro , Apr 23, 2021 :
    I am getting "overheat" in Ampere continuously; the phone is cool and seems to be working fine (the message is there even when the phone is not charging). Is this normal? (Oneplus 9 pro)

    Caoimhín likes this.
  6. Caomhin
    OnePlus 9 Series Expert Community Expert Apr 23, 2021

    Caomhin , via OnePlus 6T , Apr 23, 2021 :
    Even the temp is well within range in the image posted.

    Clear the Ampere App info Cache and App info Storage as well. It should reset the App, in case its reading something incorrectly.

    rHITkM. and navidsina like this.
  7. navidsina
    Donut Apr 23, 2021

    navidsina , Apr 23, 2021 :
    The "overheat" is still there. even trying other applications like "Battery Charging Monitor" is giving the same message.

    Caoimhín likes this.
  8. Caomhin
    OnePlus 9 Series Expert Community Expert Apr 23, 2021

    Caomhin , via OnePlus 6T , Apr 23, 2021 :
    Report to the App developers, sounds like their apps are misreading the temperatures.

    rHITkM. and navidsina like this.
  9. Swejuggalo
    OnePlus 9 Series Expert Community Expert Apr 23, 2021

    Swejuggalo , via OnePlus 9 Pro Stellar Black , Apr 23, 2021 :
    This is a bug at system level. Try toggling reverse charging on and off and check again. Suddenly "fixed" until next reboot.

    rHITkM., Caomhin and navidsina like this.
  10. navidsina
    Donut Apr 23, 2021

    navidsina , Apr 23, 2021 :
    it did fix it; thank you very much!

    Caoimhín likes this.
  11. oTeMpLo
    Gingerbread May 4, 2021

    oTeMpLo , May 4, 2021 :
    whts the charge metter ?! looks good :) link ?!

  12. JayGoat
    Donut May 4, 2021

    oTeMpLo likes this.
  13. CS1989
    Honeycomb May 9, 2021

  14. Swejuggalo
    OnePlus 9 Series Expert Community Expert May 9, 2021

    rHITkM. and Caomhin like this.
  15. CS1989
    Honeycomb May 9, 2021

    CS1989 , via OnePlus 9 Pro , May 9, 2021 :
    I only have 1 original from op9 pro.🥲🥲🥲🥲

  16. Swejuggalo
    OnePlus 9 Series Expert Community Expert May 9, 2021

    Swejuggalo , via OnePlus 9 Pro Stellar Black , May 9, 2021 :
    Try to temporary disable optimized charging and try a new charge at about 20% just for a moment. If still slow try too cool down the phone some via an AC airflow or something and see if that makes it peak at the same 6A region.
    That would exclude a defect in the charger. But still a bit strange that the car charger is allowed to go faster.

    Due to the 50W wireless charger and a second device I now got 3 Warp 65W... And 2 Warp 30 chargers from before (7 Pro and 8 Pro)... If 10 Pro changes charging again I probably need to start selling stuff 😜

    Caoimhín likes this.
  17. CS1989
    Honeycomb May 9, 2021

    CS1989 , May 9, 2021 :
    I don't think defect, I read alot got this slow charging issue with OnePlus 9 pro. So, mostly from OnePlus.

  18. Felixchris
    Eclair May 25, 2021

    Felixchris , May 25, 2021 :
    Has someone managed to get the 30W Warp Chargers working correctly?

    My old OnePlus 3 charger (20W, 5V4A) registers as fast charging with the little bolt. An Oppo VOOC 20W charger too.

    But neither the 30W brick from the 6T McLaren, nor the 30W brick from Realme register as fast charging with the icon and also seem to be slower than the original 20W bricks.

    This is so weird. I was hoping to continue to use those to get middle of the road speeds for regular charging and only use the Warp65 when I need it to top up as fast as possible.

  19. Swejuggalo
    OnePlus 9 Series Expert Community Expert May 25, 2021

    Swejuggalo , via OnePlus 9 Pro Stellar Black , May 25, 2021 :
    It should allow charging at up to 18W

  20. Felixchris
    Eclair May 25, 2021

    Felixchris , May 25, 2021 :
    Thank you! In the meantime I also found the OnePlus FAQ that states exactly that:

    Older chargers will allow for up to 18W. They claim since Warp65 is fundamentally different (also increasing voltage not only current) it can't harness the 5V6A for example.

    I'm not sure they're telling us the full story here. Why does VOOC 2.0/Dash Charge(20W) register as such (charging rapidly) and VOOC 4.0/Warp Charge(30W) doesn't (just charging)? According to them both should top out at 18W. Then again those 18W most likely refer to 12V 1.5A as specified in USB-PD. Neither of the two bricks can do that and should fall back on 5V2A (10W).

    But in practice this is what I see:

    The 30W bricks are as slow as any other 5V2A charger - so indeed only 10W. The 20W bricks push as much as on my old OnePlus 3 - never quite 4A but well over 3A. If we can have 5V4A why can't we have 5V6A?

    I'll try back it up with measures.