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Quick charge compatible car chargers

Looks like the Note 4 comes with a 2A charger. I imagine this is all we would need in a car charger to support the quick charging?

Nope. The charger has some type of 9 volt mode to facilitate the quick charge, apparently.
Sent from my SGH-T999 using Tapatalk

You'd need a special Samsung charger. The one that comes with the Note 4 has dual modes. It will charge at 9V 1.67A up to 50%~ and then switch over to the regular 5V 2A.

Here are the Quick Charge 2.0 compatible devices & accessories: https://www.qualcomm.com/news/snapdragon/2014/06/04/quick-charge-20-has-arrived

pauley said:
Here are the Quick Charge 2.0 compatible devices & accessories:
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So, has anyone tried the ones not listed by Samsung or Qualcomm? Amazon has both Anker and Verizon for about $10 or $12 that are 2 or 2.1 amp. I know they probably don't do what the officially compatible ones do but they'd be better than the old Sprint thing I have been using for 5 years, right? It's probably 1 amp or less. I need a new charger but not necessarily fully-compatible until they get cheap like this stuff I am seeing.

If you want the fast charging in your car you need to buy one that is Quick Charge 2.0 capable.

I tried 10W car charger from Samsung and it charged from about 60 % 1% every minute up to 75 % while testing it. But it isn´t really fast charging technology or?

Kawaisa said:
You'd need a special Samsung charger. The one that comes with the Note 4 has dual modes. It will charge at 9V 1.67A up to 50%~ and then switch over to the regular 5V 2A.
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Where did you get this information re 50%?
When mine passes 50% it continues to quick charge according to the battery stats I have obtained on my device.
I imported a number of the Incipio car chargers to the UK. They are excellent but not cheap!

Onite 5V 3A Universal quick wall charger for Note 4

If you have a Nexus 6, Moto X, Galaxy Note 4, or any other Qualcomm Quick Charge 2.0 compliant phone or tablet, you need a high output “Super Charger” like this one to get the full charging speed that those devices are capable of. On my new Nexus 6, this charger took me from 30% to 92% in 30 minutes of charging!
Pros:
+ Fast and powerful.
+ It runs silently.
+ Good quality build, including a nice quality cable and plug.
+ Quick Charge 2.0 compatible.
Cons:
- Bulkier and heavier than most chargers.
- The LED light is much brighter than it needs to be.
- The prongs don’t collapse, so they are at risk of getting bent in your laptop case or bag.
This Onite 3.0A is well made and very powerful. I strongly recommend you get this or another 3A charger like this if you have a Quick Charge 2.0 compatible phone or tablet. I received mine for free, to review, but am very happy with it.
amazon.com/dp/B00KQH4J6S

MagStar515 said:
If you have a Nexus 6, Moto X, Galaxy Note 4, or any other Qualcomm Quick Charge 2.0 compliant phone or tablet, you need a high output “Super Charger” like this one to get the full charging speed that those devices are capable of. On my new Nexus 6, this charger took me from 30% to 92% in 30 minutes of charging!
Pros:
+ Fast and powerful.
+ It runs silently.
+ Good quality build, including a nice quality cable and plug.
+ Quick Charge 2.0 compatible.
Cons:
- Bulkier and heavier than most chargers.
- The LED light is much brighter than it needs to be.
- The prongs don’t collapse, so they are at risk of getting bent in your laptop case or bag.
This Onite 3.0A is well made and very powerful. I strongly recommend you get this or another 3A charger like this if you have a Quick Charge 2.0 compatible phone or tablet. I received mine for free, to review, but am very happy with it.
amazon.com/dp/B00KQH4J6S
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did you just join to post this?

MagStar515 said:
+ It runs silently.
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Am I missing something. I'm not using the "quick charger" that came with the Note 4, but shouldn't chargers ALWAYS run silently?

Thats not a quick charge 2.0 charger, the quick charge chargers use 9v's to charge instead of 5v's

LancerV said:
Thats not a quick charge 2.0 charger, the quick charge chargers use 9v's to charge instead of 5v's
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this is correct, 9V instead of 5V

raiu said:
did you just join to post this?
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Wonder if he'll reply....

Only the following devices have been certified so far
Motorola Turbo Charger
Xiaomi MDY-3-EB
KDDI AU AC Adapter
NTT DOCOMO AC Adapter
Puregear Wall Charger
Powermod Car Charger
Power PartnersAC Adapter
Ventev dashport q1200
Verus World Charger
Puregear Car Charger
Ventev wallport q1200
Incipio USB Car Charger

evoxsin said:
Wonder if he'll reply....
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Spammer. He doesn't even know the technology enough to be a reviewer.

note 4 charger（quick charger） is 9v,1.67A instead of 5V
note 4 quick charger is 9v, 1.67A. Though 5V 2.0A is also OK, while no quick.
Considering 5V 3A, maybe it is faster than 2A. But the IC will prevent from higher current.

I actually ordered and tested this charger. It seems as fast as my other 2 Amp chargers. All of the reviews of this charger on Amazon are from other people who've been given samples from the seller. Don't waste your money on this charger.

I'd never buy anything from Onite. Spam threads from them, like this one, seem to pop up quite often.

what Car charger you will have

E+ is big move from my s4, looks like i need to update my car charger so support e+, can someone help here with your experience with Note or other for fast charging
Thnaks

prashant.saraf said:
E+ is big move from my s4, looks like i need to update my car charger so support e+, can someone help here with your experience with Note or other for fast charging
Thnaks
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This one is good : [Qualcomm Certified] Tronsmart® Quick Charge 2.0 18W USB Car Charger
Opt among 1 output, 2 output or 3 output. However, please note that only 1 output port supports Qualcomm Quick Charge 2.0. Rest 2 are fast, however, not QC 2.0 Fast.:good:

what is it i need one ?

Check slickdeals. I've been using the $5 one (on sale). It outputs 12v so it charges the phone very fast.

apurva.giri said:
This one is good : [Qualcomm Certified] Tronsmart® Quick Charge 2.0 18W USB Car Charger
Opt among 1 output, 2 output or 3 output. However, please note that only 1 output port supports Qualcomm Quick Charge 2.0. Rest 2 are fast, however, not QC 2.0 Fast.:good:
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Thanks for that. slick deals is having a promo on this.
However i was wondering s6 edge plus is not qualcomm based, instead exynos.
I was considering this one.
http://www.amazon.com/Aukey-Charger-Adapter-Smallest-Powerful/dp/B00M6QODH2
This is 2.1amp, and is the smallest, it can virtually snap right into your car charger port, without the protruding charger popping out.

MANswers said:
Thanks for that. slick deals is having a promo on this.
However i was wondering s6 edge plus is not qualcomm based, instead exynos.
I was considering this one.
http://www.amazon.com/Aukey-Charger-Adapter-Smallest-Powerful/dp/B00M6QODH2
This is 2.1amp, and is the smallest, it can virtually snap right into your car charger port, without the protruding charger popping out.
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Technology is same. High Volt, low Ampere. Any QualComm Certified QUick Charger would be compatible with Samsung's Adaptive Fast Charging. Atleast any branded ones, never go for any unheard brands. Usually Tronsmart, Aukey and Anker are good choices in average budget. Here's a video review I did for Tronsmart Adapter (Quick Charge) with my Edge+ :- https://www.youtube.com/watch?v=DR8W9ozZgAs
Also, please note that I have no affiliation with any of these brands, I just received a product for the review from Tronsmart and I found it really good. And I'm sure Aukey and Anker are equally good.:fingers-crossed:
Also, the Car Charger you are considering isn't fast charging compatible. Although it will not take much time with high Amp output (as specified), but its definitely not a fast charger.

Well, I am using CHOETECH’s Dual USB Car Charger with a dedicated port certified by QUALCOMM’s quick charge 2.0 technology so that I can charge my S6 Edge plus at quick charging rate even on the go. The main specialty of this charger is that it is not only charge the fast charging devices but also Apple devices like iPad Air 2 or iPhone 6 plus at much fast rate as compared to their original charger. You can consider to buy this from Amazon: http://www.amazon.com/dp/B00YX7Y3G8/

MANswers said:
Thanks for that. slick deals is having a promo on this.
However i was wondering s6 edge plus is not qualcomm based, instead exynos.
I was considering this one.
http://www.amazon.com/Aukey-Charger-Adapter-Smallest-Powerful/dp/B00M6QODH2
This is 2.1amp, and is the smallest, it can virtually snap right into your car charger port, without the protruding charger popping out.
Click to expand...
Click to collapse
sigma24 said:
Well, I am using CHOETECH’s Dual USB Car Charger with a dedicated port certified by QUALCOMM’s quick charge 2.0 technology so that I can charge my S6 Edge plus at quick charging rate even on the go. The main specialty of this charger is that it is not only charge the fast charging devices but also Apple devices like iPad Air 2 or iPhone 6 plus at much fast rate as compared to their original charger. You can consider to buy this from Amazon: http://www.amazon.com/dp/B00YX7Y3G8/
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Here's a deal I saw today for CHOETECH :fingers-crossed::-
http://www.androidpolice.com/2015/0...0-certified-4-port-usb-car-charger-on-amazon/

apurva.giri said:
Technology is same. High Volt, low Ampere. Any QualComm Certified QUick Charger would be compatible with Samsung's Adaptive Fast Charging. Atleast any branded ones, never go for any unheard brands. Usually Tronsmart, Aukey and Anker are good choices in average budget. Here's a video review I did for Tronsmart Adapter (Quick Charge) with my Edge+ :- https://www.youtube.com/watch?v=DR8W9ozZgAs
Also, please note that I have no affiliation with any of these brands, I just received a product for the review from Tronsmart and I found it really good. And I'm sure Aukey and Anker are equally good.:fingers-crossed:
Also, the Car Charger you are considering isn't fast charging compatible. Although it will not take much time with high Amp output (as specified), but its definitely not a fast charger.
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Thats very good info. Charging technology is evolving with the phones, and thats a very positive start.
The day is not very far when we might have multi thousand mah of battery juice and charging becomes a weekend job.
Do you mind taking notes while charghing 20% of battery with both the qualcomm fast charge, and the regular 2.1amp charger.
I've already placed an order for the Aukey 4.8A / 24W Dual USB Car Charger mainly because of the size. I'd really want a charger that can **** plush within the car's charging port.

MANswers said:
Thats very good info. Charging technology is evolving with the phones, and thats a very positive start.
The day is not very far when we might have multi thousand mah of battery juice and charging becomes a weekend job.
Do you mind taking notes while charghing 20% of battery with both the qualcomm fast charge, and the regular 2.1amp charger.
I've already placed an order for the Aukey 4.8A / 24W Dual USB Car Charger mainly because of the size. I'd really want a charger that can **** plush within the car's charging port.
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Charging isn't a very quantitative process. First 20% of charging would never be same as next 20% of charging. Usually with fast charger, the first 20% would be amazingly fast while the regular 2.1 amp might take upto 1.5 - 2 times the time. Also, assuming two different devices have same sized battery, with the same charger, one might get 70% charged within 30 min while the other can get 80% charged. However, by the end of 100%, both might take similar time. Thats why, the % readings aren't very consistent or dependable. Its approximation. With 2.1 Amp charger, you won't loose much time, trust me. Also, I don't have the facts, but I have noticed that when I do the fast charging, battery drains out marginally quicker than when I charge through regular 2 Amp charger. Hope that helps.. :fingers-crossed:

apurva.giri said:
Charging isn't a very quantitative process. First 20% of charging would never be same as next 20% of charging. Usually with fast charger, the first 20% would be amazingly fast while the regular 2.1 amp might take upto 1.5 - 2 times the time. Also, assuming two different devices have same sized battery, with the same charger, one might get 70% charged within 30 min while the other can get 80% charged. However, by the end of 100%, both might take similar time. Thats why, the % readings aren't very consistent or dependable. Its approximation. With 2.1 Amp charger, you won't loose much time, trust me. Also, I don't have the facts, but I have noticed that when I do the fast charging, battery drains out marginally quicker than when I charge through regular 2 Amp charger. Hope that helps.. :fingers-crossed:
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Thanks that was good info. I've received my 2.1Amp Aukey charger.
I tried it yst evening while commuting back home from work, which is about 20min drive, and the phone was at at 50%, and it was able to charge about 30% in less than 30 mins. Looks promising. I love the form factor. you cannot evne see the charger plugged into the car port. Best of all, the car port's cover covers the entire charger when not charging, this way i dont even have to remove the charger jack every time i have to charge the car, just pluck out the wires, and snap the cover back to conseal the charger.

MANswers said:
Thanks that was good info. I've received my 2.1Amp Aukey charger.
I tried it yst evening while commuting back home from work, which is about 20min drive, and the phone was at at 50%, and it was able to charge about 30% in less than 30 mins. Looks promising. I love the form factor. you cannot evne see the charger plugged into the car port. Best of all, the car port's cover covers the entire charger when not charging, this way i dont even have to remove the charger jack every time i have to charge the car, just pluck out the wires, and snap the cover back to conseal the charger.
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That's nice.. :good::good: No wonder Aukey has made its name so quickly!

dont need it lol
once charged my phone can be good for 3 days dont need it lol

ruchisharma91 said:
once charged my phone can be good for 3 days dont need it lol
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With constant gaming and videos watching (after working hours ofcs ), mine doesn't stay beyond a day. I'm very happy with that though. I have seen significant different in battery life when I keep the power saving mode on and it doesn't really impacts my gaming at all even though it says that power saving switches to the 1.5 ghz cores and stays that way...!

It doesn’t matter a lot but yeah the main thing is internal circuit and the premium component used in the manufacturing. All of the chargers integrated with Qualcomm Quick Charge 2.0 chip inside. But the best components used in the manufacturing plays a vital role. I can trust CHOETECH more in this area as they are offering 18 months warranty, which means they are confident about what they produce or deliver to their consumers.

How fast is OP6 charging without dash rapid charger?

I have the Samsung Note 4. Like the OP6, it has a proprietary "quick charge" mode, but I find it will also charge quite fast when provided with a non-Quick Charge source such as a battery that can source several amps of current.
How fast does the OP6 charge without the Dash charger and cable? (in terms of amps drawn from source?)

Like it would take years like why would you want to know this, if you broke your charger buy another and look after it like. It's one of the main features of the phone and they don't talk about how fast it charges like

At work i use a QC3.0 charger for my OP6. Didn't notice a great difference to the DASH charger at home. Maybe DASH is a few minutes faster.
40% to 70% charge with QC3.0 is still insanely fast.

Stay on topic guys. OP asked a question, which could be answered with facts, rather than opinions and scenarios. In my regular car charger, I go from 22 to about 70 in 40 minutes, if I can recall correctly.

ItsLaggyY said:
Like it would take years like why would you want to know this, if you broke your charger buy another and look after it like. It's one of the main features of the phone and they don't talk about how fast it charges like
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I'm not sure if you're serious or sarcastic, but In case of the former, here are a few reasons why someone might be interested in charging with other than the Dash Charger:
1) AFAIK, Dash is available in AC mains or 12V Car charger versions. I often use a 20K mAH Anker powerbank battery for charging. That is usually in situations where other power is not available, but a quick charge is needed. Huge current is available, but would the OP6 use it?
2) I use a compact travel charger that has 5 USB charging ports. Using a Dash charger would require carrying another charger (big, bulky, without retractable prongs), and occupying one (or more due to the shape) additional AC outlets.
3) I have a phone charger in my bedroom, at my desk, in my travel bag (both AC and Car style), and in my car. A quick check on Amazon seems to indicate that the Oneplus6 charger is several times more expensive than other "quick charge" chargers. Over multiple charger locations, the extra costs add up.

Using the word "like" so many times makes it difficult to understand the post.

dwj said:
Using the word "like" so many times makes it difficult to understand the post.
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I'm Irish, apology

I have a stockpile of fast chargers that used the weird Nexus standard (5V, 3A, non QC) and they're okay, and for overnight or at my desk at work that's plenty fast to get the job done. The phone shows them as "charging" and not "charging slowly."
I purchased a "Tinduqin oneplus5T charger" from Amazon that works and looks exactly the same as the original dash charger for about $20, but it seems to already be sold out.

If you don't use dash charger,you only can charge at 5v 1.5a,I have tested it with apple 45w pd charger,xiaomi qc3.0 and nexus 5v3a charger

timg11 said:
I have the Samsung Note 4. Like the OP6, it has a proprietary "quick charge" mode, but I find it will also charge quite fast when provided with a anon-Quick Charge source such as a battery that can source several amps of current.
How fast does the OP6 charge without the Dash charger and cable? (in terms of amps drawn from source?)
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It won't charge very fast because it doesn't use any on board quick charge it's all in the dash charging brick

I have a bunch quick chargers 3.0 at home. It takes a life time. I end up buying the dash charger. I still use the quick charger for over night charging

there must be some sort of software restrictions on oneplus6 since measures show that oneplus6 cannot be charged with more than 5V-1.5A.

x111 said:
there must be some sort of software restrictions on oneplus6 since measures show that oneplus6 cannot be charged with more than 5V-1.5A.
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Do you own the OP6? Do you have a USB power meter that could measure the charging current with and without the Dash charger and reply with the values?
On my Note 4, it charges at about 1.17A / 5 V when the screen is on, and the current goes up to 1.6A with the screen off. That is with either a QC2 Quick Charger or a battery power pack. The phone reports "quick charger connected" in both cases.

oneplus6 has 85% battery left, measured with usb voltmeter and original oneplus dash charger 5V-4A, it shows that oneplus6 is dawning 5V-1.3A and same thing is happening with other usb chargers capable to deliver over 5V-2A.
I guess oneplus6 should be discharged less than 50% or something in order to start receiving over 5V-3A

1N1ghth4wk said:
At work i use a QC3.0 charger for my OP6. Didn't notice a great difference to the DASH charger at home. Maybe DASH is a few minutes faster.
40% to 70% charge with QC3.0 is still insanely fast.
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Is it possible to use a the original DASH-adapter but with another USB-C cable? I need a longer cable so I can use the phone whilwe charging.
OnePlus has a original cable for sale which is only 150cm Long.
My question is if I can buy any other manufacturers cable whish also support some sort of fast charging. I've heard for example that DASH-charging is the same charging model that Huawei P20 Pro uses, they just have different name. .
So, is there anyone here that has switched the OP original cable and charge it up with a cable from another manufacturer?
There has to be a solution to this. Me myself can't. be the only one that needs s longer cable.

x111 said:
oneplus6 has 85% battery left, measured with usb voltmeter and original oneplus dash charger 5V-4A, it shows that oneplus6 is dawning 5V-1.3A and same thing is happening with other usb chargers capable to deliver over 5V-2A.
I guess oneplus6 should be discharged less than 50% or something in order to start receiving over 5V-3A
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That's normal. Phones pull the most amps when on low battery, then progressively less as they are charged.
Check how much it pulls on <40% and <80% respectively.

Well, I charged my Op6 with a no-name USB 3.0 charger yesterday (forgot my dash charger at home, I was by a friend) and from 3% to 100% it took about ~1 hour and 55 minutes.
Not that bad I guess. But I still prefer my dash charger

I'm using a huawei p20 pro charger atm. Phone states from 75 - 100 it will take 33 minutes. (prob a bit faster if I don't use the phone.

Here is a charging session with a Oneplus 2 charger without quick charge
Charging from 27% to 100% in 2 hrs, 40 min - avg. Charging speed: about 1000 mA/h

Hello,
I'm using this old thread since we're talking about the same thing.
Is there a kernel or rom for the OP6 that enables to draw as much current as possible form third party chargers? It's sad that it's stuck at 1.5A no matter the charger unless you use dash charger. 2A is already something, 3A would be awesome.
Of course only if this a software limit.

Question Do the wall wart and cable matter?

I have some Anker brand USB-A to USB-C charging cables and just the wall wart (is there a technical name for those things?) from something... probably one of my old Samsung phones... it says "Adaptive fast charging" and output says "9.0 V === 1.67A or 5.0 V === 2.0 A".
( know that stands for "volts" and "amps", but I don't understand what the rest of it means... 2 Amps is "faster" than 1.67 Amps... I think... but what makes it charge at one speed or the other?)
My real questions:
1) Will using the USB-A to USB-A cable that came WITH the Galaxy S22 Ultra make a difference in charging speed?
2) Do I need to get a different "wall wart"? If I want one that supports USB-C plugging into it, I do, but will it gain me anything?
Thanks.
Edit: I guess tehnically it's an "AC Adapter" or a "power supply brick"...?

See how what you have now performs. The best/fully compatible would be Samsung own charger. And any decent quality cables

I use my original charger from my Samsung Galaxy Note 4 on my S22 ultra. It charges it about 90 minutes. I suspect this is the same charger as yours.
1.67amps x 9v is 15.03watts.
5.00apms x 5v is 10.00watts.
15 Watts is a nice steady rate to be charging your battery at.
45w...is really too fast if you want your battery to last more than 2 years.

pjaysnowden said:
I use my original charger from my Samsung Galaxy Note 4 on my S22 ultra. It charges it about 90 minutes. I suspect this is the same charger as yours.
1.67amps x 9v is 15.03watts.
5.00apms x 5v is 10.00watts.
15 Watts is a nice steady rate to be charging your battery at.
45w...is really too fast if you want your battery to last more than 2 years.
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45W is nothing and won't really degrade your battery much. Also, keep in mind, that batteries degrade regardless if you use them or not, they have a shelf life. So, in 2-3 years you will mostly need to replace your battery anyway if you plan to keep your phone for that long (assuming that you want the battery to be at it's "full" capacity after 2-3 years).

ekin_strops said:
45W is nothing and won't really degrade your battery much. Also, keep in mind, that batteries degrade regardless if you use them or not, they have a shelf life. So, in 2-3 years you will mostly need to replace your battery anyway if you plan to keep your phone for that long.
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Even still...I'll keep slow charging my phone...knowing that it will last 5 years.
My note 4 battery outlasted the actual phone. The touch screen packed up first. The battery still lasted 6 hours screen on.
I replaced it with a Note 9. Again...the battery was fine...and original. Same story...6 hours of screen on time.
Now I have a Note 22....or S22 Ultra.
I have used the Note 4's charger for all of these phones...with my 10watt Kosee wireless charger. Even on the Note 4...with a wireless adapter.

ekin_strops said:
45W is nothing...
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It's still 10 Amperes into the battery.
I'm often running ~10 Amperes into my dual 224 Ampere-hour 6 Volt "golf cart" batteries.
They also weigh about 130 pounds more than your battery!

Renate said:
It's still 10 Amperes into the battery.
I'm often running ~10 Amperes into my dual 224 Ampere-hour 6 Volt "golf cart" batteries.
They also weigh about 130 pounds more than your battery!
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It doesn't push 10 Amperes into the battery.
PPS charging is pushing from 3.3V to 20 Volts at 2.25Amps, it's dynamic charging and it depends on the device's state (temperature of the battery, the charger, the capacity of the battery).
I'm not sure where you get this information, and not trying to be rude now but maybe you should check up on both PD and PPS charging protocols that Samsung uses before assuming it's charging at 10 amps.

Dougmeister said:
I have some Anker brand USB-A to USB-C charging cables and just the wall wart (is there a technical name for those things?) from something... probably one of my old Samsung phones... it says "Adaptive fast charging" and output says "9.0 V === 1.67A or 5.0 V === 2.0 A".
( know that stands for "volts" and "amps", but I don't understand what the rest of it means... 2 Amps is "faster" than 1.67 Amps... I think... but what makes it charge at one speed or the other?)
My real questions:
1) Will using the USB-A to USB-A cable that came WITH the Galaxy S22 Ultra make a difference in charging speed?
2) Do I need to get a different "wall wart"? If I want one that supports USB-C plugging into it, I do, but will it gain me anything?
Thanks.
Edit: I guess tehnically it's an "AC Adapter" or a "power supply brick"...?
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1. With Galaxy S22 there is an USB-C to USB-C cable not USB-A (maybe a typo on your side). That cable is rated for the full power charge the device supports, that is 45w. It can make a difference if you are using it with a proper charger (that's the actual naming for the "wall wart"...it is called "charger" or "wall charger" btw).
2. Yes, you should get a different one if you wanna charge faster. Your actual charger is a (so called) "fast" charger with the charging power varying from 15W to 10W. Your phone supports from 25W up to 45W, that are the "ultra fast" chargers.
I'd suggest to get at least a 25W charger, also there are some extremely good Anker alternatives (even better that original Samsung chargers), look for Nano II 635 or 615 Anker chargers.
If you wanna keep your phone for an extended period (like 4-5 years or more), you might wanna activate that battery protection charge that only charges it till 85% and will preserve it for a longer period. If you switch phones after 2, even 3 years, don't bother, charge it as you like fast or slow till 100%

ekin_strops said:
I'm not sure where you get this information...
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If the charger is rated at 45 Watts and sometimes actually delivers that:
45 Watts / (maximum) 4.3 Volt battery > 10 Amperes
Maybe they are PWM-ing it or whatever, but the peak current is > 10 Amperes.
Ok, we can subtract the efficiency of the buck converter, but it's still in that neighborhood.

What would happen if I bought and used a 65-watt charger? Would it automatically drop down to 45 watts to charge my S22 Ultra? Could it damage it, etc.?

Dougmeister said:
What would happen if I bought and used a 65-watt charger? Would it automatically drop down to 45 watts to charge my S22 Ultra? Could it damage it, etc.?
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1.Q. Yes.
2.Q. It not gonna damage it if not pushed to full 100% or discharged completely before connecting.

Sorry to hijack this thread, but is there a decent wireless charger, that will give me fast wireless charging with a Spigen powerarc arcstation pro 65w charger? I have tried about 3-4 cheap crap ones, and they all give reg wireless charging of about 22% for an hour's charge.

The S22U‘s maximum wireless charging rate is only 15 watts. I use the Spigen PowerArc ArcField 15 watt wireless charger, which is powered by a conventional charger via USB C cable and works very well charging my S22U.