I bought these together and today I tried the charging time by depleting the battery and do a full charge with the 20W wireless charger, the charging time is 120 something minutes, which is far from the official number of about 90 minutes, or 100 minutes from some reviewer.
I used the power adapter that came with the wireless charger, which has 27W, and plugged into 6 outlets power strip (totally 3 are in use). The phone is a Chinese version with Chinese ROM, 6GB+128GB. The phone was drained and turn on after charging start, and no explicit apps were launched, other than the system one.
I don't know if this is the charger problem or the phone battery, I wrote to Xiaomi but have not heard back.
Could be a subpar cable, do you get good speeds plugging directly into the charger with it?
If you have a case or ring grip or anything inbetween your phone and the pad that might be impacting speeds
Also placement is really important, you wanna center the ring on the screen on the pad as closely as possible
Probably not an issue as you got the charger with the pad but a thread in "XIAOMI MI 9 ACCESSORIES" I can't link to describes how there are fake chargers out there too
Related
hi guys, i'm from a 8 note and now i'm using sasung's original 8 wireless wireless charger to plow my new 9 notes, but i'm noticing that it's really slow, is it normal? I have the impression that even imposed fast charge does not change anything, do you have any suggestions?
im also using the wireless charger that I received from Samsung in 2018 for the note 8 promotion.
I can confirm that fast wireless charing takes 2 hours + on the note 9 and up to 3 hours when using slow wireless charging.
Also, keep in mind we have a way bigger battery so i am not surprised seeing these charge times compared to the note 8. I know Samsung released a new wireless charger so we might see better charge times on that??
I use the wireless charger I bought for my Note 4 for $12. It charges my phone in 2 hours from 50%, which is about double than using the cord. It doesn't say slow, or fast, just charging.
I use a Samsung wireless charger I had with a kit when I bought my S8+ and it says "Fast charging wireless" I believe. I use it to charge over night though so not sure how long it takes.
I use the ADATA CW0100 charger with Sony UCH10 QC2.0 Charger - the phone says it's fast charging but it takes about 3 hours to go from 11% to ~100% (with a clear case + bus card in between on the back). The interesting issue is which power brick I use. WIth Samsung's Adaptive Fast Charge power brick, I kept getting a charging paused error in the previous firmware, unless I have the phone placed in a very specific position without a case. With the update (N960FXXU2ARI9), it no longer gives me the error even if I charge it with a case, but the charging seems a bit more noisy in comparison to the UCH10 (there's no fans, it sounds like the inductor making a pulsing clicking sound). Will be checking its charging speed.
EDIT: I spoke to soon, it started the charging paused error again after I posted here. If you want to use third-party wireless chargers for fast charging, please use QC2.0/3.0 chargers instead of Samsung's own.
I have a problem with charging qi in MI MIX2s the phone is charging up to 50-60% and suddenly the charger stops flashing diode that charging was interrupted after re-loading, it charges to 90-100%
if someone has such a problem and can be guilty
try a different charger you might have a problematic charger, have tested non brand and xiaomi wireless both charge the phone just fine(slow 5w ...maybe due to custom rom? ...still charging)
I was experiencing problems too (even with the original dark blue xioami charger).
In my case, seems to be software issue. The phone charges way faster with the phone turned off. Also when on, sometimes it says that is charging slow being in the same position that charges ok with the phon turned off.
Also on a thread of the last update (still beta), someone said that the wireless charger worked better, so im looking forward to test it.
I've been having a repeatable problem. I have a Note 9 that will charge faster when I disable fast charging under battery settings. I tested the load being drawn with a USB Power meter these are the results I got.
Using a USB-A to USB-C cable:
When QC is enabled:
Phone draws 0.5amp charge, 10ohms resistance at 5.02V.
When QC is disabled:
Phone draws 1.2 amps, 3.9 ohms resistance, at 5.02V
I am using the same cable, same power bank. The power bank's USB-A port is able to draw ~1.9 amps at 5V, tested using a USB Meter and Load Tester that will put the USB under 1 amp and 2 amp loads at 5V, with resistance being ~2.7 ohms without the power bank turning off. I haven't tested the power bank at 9V, I don't have a 9V load tester
When I immediately switch from QC to non QC, the results above are repeatable.
Things I Have Done So Far:
Reboot Phone
Clear Phone Cache
Reboot Into Safe Mode
Try Different Charging Cables, Blocks, including OEM parts.
Every once in a while, it will switch back to being able to QC fast charge but it is random.
If I use a Power delivery capable block charger, it will charge at ~2750mA (I dont have other numbers like amps, voltage, or resistance, I'm still waiting on a USB-C meter)
My phone's wireless charging has no problem operating at it's max capacity
Any one else have this problem? Anything else I could do before I factory reset my phone?
I posted about losing Fast Charge thru the stock cable a while back and got no answers or a fix. I have not tried turning off the option to see if it charges any faster. It takes almost 2 to 3hrs to fully charge at this point. I'll take any fix or work around at this point.
TokedUp said:
I posted about losing Fast Charge thru the stock cable a while back and got no answers or a fix. I have not tried turning off the option to see if it charges any faster. It takes almost 2 to 3hrs to fully charge at this point. I'll take any fix or work around at this point.
Click to expand...
Click to collapse
Turning off fast charge made my charging a bit better. With Fast Charge (FC) turned on, I was getting 0.5amps (gave around 400-500mA). Turning FC off, sped up my charging by 50%, charging at 1.2 amp (roughly gave me 800-1000mA; Both charges were at 5V). Im able to charge at around 1000 mA with this setup, a little less than wireless quick charge. No idea why turning it off helped.
Another workaround that brought my charging speed WAY UP, to 2500mA, was buying a Power Delivery (PD) capable block WITH A USB-C to USB-C cable. I can get normal fast charging speeds with that setup.
I cant get FC with USB-A to USB-C cables, which is frustrating as most of my charging blocks are the regular USB-A input port.
Hope this helps you. 2-3 hour charge is brutal.
What's even weirder is in my car my phone would barely charge. But since I lost FC at home, it started working in the car. So in my car I can FC but not at home. I even tried the wire I use in the car and still nothing. Idk what is going on
Is it possible that turning off QC is turning off a regulation in the software to keep the battery from overheating? With this regulation turned off that would normally be on when quickcharging, the regulation is not active, thus causing the battery to charge at a less regulated speed, causing charging to be faster? Maybe there's a QC bug currently that's hampering it's full potential? What software version are you guys currently?
I just checked QC on mine on the latest Xfinity version and no matter what charger or cable I use with the function, it is working.
It's def not a software thing. I'm on latest October patch. Samsung told me that they have seen some issue with the charging port and once it goes bad there is nothing to do but replace it. They told me to bring it in to a store for repair thru my carrier. Haven't had a chance to go.
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Jammol said:
Is it possible that turning off QC is turning off a regulation in the software to keep the battery from overheating? With this regulation turned off that would normally be on when quickcharging, the regulation is not active, thus causing the battery to charge at a less regulated speed, causing charging to be faster? Maybe there's a QC bug currently that's hampering it's full potential? What software version are you guys currently?
I just checked QC on mine on the latest Xfinity version and no matter what charger or cable I use with the function, it is working.
Click to expand...
Click to collapse
That what I was thinking. Something is actively limiting the charge coming in. Everytime I had quick charge enabled I've been monitoring the ohms and the resistance would automatically jump to 10ohms. Then I disable QC and the resistance automatically drops to around 6 ohms.
I'm running Android Pie 9.0, Kernel version 4.9.112
TokedUp said:
It's def not a software thing. I'm on latest October patch. Samsung told me that they have seen some issue with the charging port and once it goes bad there is nothing to do but replace it. They told me to bring it in to a store for repair thru my carrier. Haven't had a chance to go.
Click to expand...
Click to collapse
Nocturncal said:
That what I was thinking. Something is actively limiting the charge coming in. Everytime I had quick charge enabled I've been monitoring the ohms and the resistance would automatically jump to 10ohms. Then I disable QC and the resistance automatically drops to around 6 ohms.
I'm running Android Pie 9.0, Kernel version 4.9.112
Click to expand...
Click to collapse
Yeah it could definitely be hardware related as well, due to each pin on a type c charging serving different purposes. There are two specific pins(I think it's two), that are responsible for enabling higher input of electricity. Couple years ago Google made comments about the cheap Amazon knock off cables and why they failed after a short while. Wouldn't surprise me if Samsung cheaped up for the cables and port on the device. I'll have to try and find the articles I read concerning the pins.
Here's a good start to understanding Type C.
https://www.allaboutcircuits.com/te...pe-c-which-pins-power-delivery-data-transfer/
Its the **** cable they supply with the phone.
I had all the same problems.
I noticed that when I turn off quick charge the phone can charge at 5v 1.7 amps. (USB doctor).
When I turn on quick charge it can only charge at 5 volts 0.40 amps.
The phone is trying to charge at 9 volts but for some reason cant so it goes into this safe mode.
I purchased a new Samsung cable it lasted for a week and developed the same problem.
A hint when it develops this problem Dex stops working.
I tried all kinds of cables. One Plus 5, and a few others. I finally got it to work again with my wifes one plus 6 cable.
Im now researching USB Type C ports and USB standard 2, 3, 3.1, 3.2
As well the quick charge tech used by Samsung. Its not Quick Charge 2. Its a proprietary standard.
So if your having problems with quick charge it could be due to your cable or your Port. Things very rarely go wrong with the charger. Also get yourself a USB Doctor. Its a big help. And only costs a few bucks.
Hope this helps somebody out there.
Right now I am trying to compare Note 9 vs Note 20 USB cable.
I wanted to know if anyone has the same problem with charging as me. if I use the original battery charger the recharge is more or less that indicated (it takes about 10-15 minutes longer). the problem happens when i connect it to a laptop or car. I connected it to my car via an adapter that goes into the cigarette lighter and cable that I used with my redmi 9s. the battery is charging but does not increase. same thing happens with my laptop on standby. with my redmi 9s even though it slowly increased the battery. does someone else have the same problem (software optimization?), or is it not a problem because it absorbs more energy and I cannot make the comparison with the two smartphones?
edit: after a few days of testing I saw that the recharge takes place with the laptop or the car if the battery exceeds 60% otherwise this does not increase.
My OnePlus 7 pro would charge great in my cars USB using Android auto. My new OnePlus 10 pro doesn't charge at all using the same car USB port and original red cable. Ampre app shows at most about 260ma then immediately drops to about 50ma charging and an external USB monitor device shows .4 amp charging rate but driving with Android auto on a 1 hour commute, my phone charge % will drop by 1-2%. Anyone know what's going on?
I do not have an answer to this, but I have exactly the same problem. My last phone was a Oneplus 9 and the cable I used for that is doing exactly the same as you have described. I've only had my phone for a few days and just realised this yesterday.
State of Charge is largely voodoo.
0.4 Amperes is what your device is using including charging current.
50 mA is what is going into your battery.
1-2% is not statistically significant.
You need to take a 20 hour road trip to see if it maintains charge.
the same problem with the oneplus 10 pro, i come from the whole oneplus series being the last one the 9 pro and it was charging fine until now. I even changed the charger and it didn't work the same way, I took my car to check if the charge was working correctly and I deduced that it was the cell phone, but only with the car charger it doesn't work. I agree that it is a software issue not accepting the configured voltage.