Question about weird fast charge Galaxy S8+ - Samsung Galaxy S8+ Questions & Answers

I have 4 chargers on hand listed below...
1. Original Samsung Adaptive USB Charger
2. Anker PowerCore+ 10050+ QC 2.0 Charger
3. Anker PowerCore 10000
4. Pleson Fast Wireless Charger
Now my question is why is my S8+ charging similarly with all these chargers? Example @ 30%.... The Adaptive charger says 1 hr 9 min (reads fast charge), the Anker 10050+ says 1 hr 25 min (doesn't read fast charge), The Anker PowerCore 10000 says 1 hr 25 min (Not a fast charger), and the Pleson Fast Wireless Charger says 1 hr 44 min. I am confused.

dja2k said:
. I am confused.
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yes you are.

all values seem to be plausible! what bothers you?
Sent from my SM-G955F using XDA-Developers Legacy app

dja2k said:
I have 4 chargers on hand listed below...
1. Original Samsung Adaptive USB Charger
2. Anker PowerCore+ 10050+ QC 2.0 Charger
3. Anker PowerCore 10000
4. Pleson Fast Wireless Charger
Now my question is why is my S8+ charging similarly with all these chargers? Example @ 30%.... The Adaptive charger says 1 hr 9 min (reads fast charge), the Anker 10050+ says 1 hr 25 min (doesn't read fast charge), The Anker PowerCore 10000 says 1 hr 25 min (Not a fast charger), and the Pleson Fast Wireless Charger says 1 hr 44 min. I am confused.
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Because only 1st one is actually fast charging your phone.
You should try 2 and 4 with original cable. If you have qualcomm version of s8 shold work

I'd echo the original cable and the wall plug that came with the device. Retry all 4 of these with the original cable and the wall plug.

Well I don't know if the Anker products are charging oddly because one is QC 2.0 and the other isn't, yet both have same 59 min charge time. So I question is the Samsung Adaptive charger is charging slow or fast? Here are some pics of the remaining charge with original black USB Cable.

From my experience, Samsung Devices don't really play nice with qc certified devices thanks to Sammy doing their own thing. What you are seeing is what made me buy Samsung's power kit.
Sent from my SM-T810 using Tapatalk

I have no issues with my chargers, use stock charger blk, use sammy wireless charge pad with aftermarket cable and s7e wall plug charger and no issues. Still get fast charge. I even have a portable 10000mah sammy pack and use my gopro usb-c cable n gef fast charge.

Do you mean this one....
https://www.walmart.com/ip/Samsung-Fast-Charge-Battery-Pack-10.2A-Black/49851012#about-item

I use Aukey USB 3.0 Chargers & they Fast charge my phone :good:
https://www.amazon.com/Aukey-Charge...ons&keywords=AUKEY+USB+Wall+Charger+3.0&psc=1
https://www.amazon.com/AUKEY-Charge...TF8&qid=1494010987&sr=1-5&keywords=AUKEY++3.0

Had similar problem. All my Anker QC2.0 doesn't fast charge my S8 while 3.0 does. got them both refunded while they are investigating.

darkangeldc5 said:
Had similar problem. All my Anker QC2.0 doesn't fast charge my S8 while 3.0 does. got them both refunded while they are investigating.
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Strange
does that mean S8 has QC 3.0

Yes I am in talks with Anker as well, seeing what they find out about my QC 2.0 Anker charger.

dja2k said:
Yes I am in talks with Anker as well, seeing what they find out about my QC 2.0 Anker charger.
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They sent me another QC 2.0 car charger, and it did not fast charge. I am going to try Berkin USB-PD car charger and see how it goes.

Estimated time. Don't expect them to always show exactly the time.
I have QC 2.0 and 3.0 chargers and they all "fast charge" but I don't expect what the estimated time show to fully charge be accurate or else they wouldn't say estimate.
Sent from my SM-G955U using Tapatalk

dja2k said:
Do you mean this one....
https://www.walmart.com/ip/Samsung-Fast-Charge-Battery-Pack-10.2A-Black/49851012#about-item
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Yes except bestbuy carries that with a dual Samsung fast charger for car and a nice wireless upright fast charger all in one box for about $99 on sale every other week. Way more consistent everywhere now.
Sent from my SM-G955U using Tapatalk

Compared to my s7edge this s8+ charges a lot slower. The s7e would fast charge and wirelessly fast charge from any third party wireless pads/adapters.
The s8+ is finicky about what activates fast charge (especially wireless) and even while in fast charge it does not charge as fast as s7.
My guess is samsung slowed the charging down to help with battery degradation.

I found a weird thing last night when I set my phone to charge at 2 AM with about 7% battery just to wake up around 6 AM and it being at 86% charged. That was a long time, I don't know what's going on. Either the phone isn't quick wireless charging or the Pleson Fast Wireless pad I have sucks.

dja2k said:
I found a weird thing last night when I set my phone to charge at 2 AM with about 7% battery just to wake up around 6 AM and it being at 86% charged. That was a long time, I don't know what's going on. Either the phone isn't quick wireless charging or the Pleson Fast Wireless pad I have sucks.
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So, I've seen this behavior too. If you see the charge stuck, unplug the cable and plug it back in. I'm not sure why, but that fixes the issue immediately.

Are you guys charging in a warm room? S8 will stop charging if the battery exceeds a certain temperature. Samsung really went overboard with battery safety after the Note 7.

Related

[Q] Galaxy S5 fast charge?

Hello
What do I need to get Fast Charge?
a charger.
bloodrain954 said:
a charger.
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Lol!!!!
MariosFFX said:
Hello
What do I need to get Fast Charge?
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Click to collapse
fast charge is generally a feature that needs to be built into a custom kernel
Don't know about you but my S5 chargers incredibly fast compared to my SIII and Nexus 7. Even with fast charge on.
Agree, my S5 charges at 1.2A given a charger capable of this, and that is fast.
timrichardson said:
Agree, my S5 charges at 1.2A given a charger capable of this, and that is fast.
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correction S5 chargers are shipped with a 2.0A chargers and it charges at that rate.
jucytec said:
correction S5 chargers are shipped with a 2.0A chargers and it charges at that rate.
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Yes, the S5 charges at 2amp. (Kernel reports 1800mah)
If your phone is reporting that it charges any slower than that, it's an energy deficiency of the charger supply, bad cable, or bad micro usb connection.
I use an app which reports charging current. With a standard micro usb cable i never morw than 1200 mA (and about 450 mA from a PC/mac usb plug)
Sent from my SM-G900F using Tapatalk
While it's true that the phone ships with a 2A charger, the charging current does not exceed 1.2A AFAIK.
Gotta love MicroUSB 3.0.
It already charges from under 10% to 100% in a mere 2 something hours (bundled charger and USB 3 cable). You want something much faster than that???
nikhilmulay said:
While it's true that the phone ships with a 2A charger, the charging current does not exceed 1.2A AFAIK.
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Yes I think in the end it is something around this current. What the apps report is more "charging in 1800mA mode" and not really charging with continous/real 1800mA. If you like to know more exactly what the current is you may write down time/percentage values for e.g. every 5% of battery power starting with an nearly empty battery. Then you can draw an line of the effective loading current.
With the original charger you should be able to get stable 1800mA but if the loading circuit of the S5 really goes this high I did not check.
I believe it peaks at 1800mah with the screen off. It is 1200 mah limited when screen is on.
Sorry to awaken this post.
As most of you, my S5 reported charging at stable 1200 mA with wall charger, probably 1800mA when turned off.
But, I can say a custom rom unleash battery charging in the same conditions as stock rom. I get stable 1800 mA with LineageOS, even screen on, with original charger and usb 2 or usb 3 cable.

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!

Aukey Car Charger Not QC 3.0 as Advertised

Update 7th May 2016:
I've tested the replacement but it isn't the same model, the new one has 1 QC 3.0 + 1 IQ port instead of the original 2x 3.0. It's this one
https://www.amazon.co.uk/gp/aw/d/B01ALQWQFO/
This one is performing as I'd expect from 3.0 with multiple voltages between 5v & 9v & 1A with screen on whatever the temp.
They have now amended the product description of the original to highlight incompatibility with LG G5.
Update 3rd May 2016:
Quick update. I have been contacted by the seller & they say that, whilst the charger does meet QC 3.0 certification, they have identified that the "PD" chip is incompatible with the LG5. They have a new version they are sending me that should rectify this. I'll post an update once I've tested.
=========================
Original post:
AUKEY Quick Charge 3.0 Car Charger 36W Dual Ports for LG G5, HTC One A9, Nexus 6, iPhone, Samsung S7and more (Includes 1 Meter Micro USB Cable) - Black https://www.amazon.co.uk/dp/B01B5X35FM/
It says QC 3.0 on the charger but it is actually 2.0
Measured with an online voltage meter, it is only charging my LG G5 with 9v whereas my other QC 3.0 chargers output around 6v. Now this won't make much difference with screen off, with both charging at similar 3A rate, but when screen on, the 3.0 chargers output 1A but this only manages 0.3-0.6 depending on device temperature, exactly the same behaviour as other QC 2.0 chargers I have.
If you've bought 1 & it says 9v ish on a volt meter or you don't get 1A when screen on, it's not QC 3.0
Sent from my LG-H850 using Tapatalk
stuart0001 said:
AUKEY Quick Charge 3.0 Car Charger 36W Dual Ports for LG G5, HTC One A9, Nexus 6, iPhone, Samsung S7and more (Includes 1 Meter Micro USB Cable) - Black https://www.amazon.co.uk/dp/B01B5X35FM/
It says QC 3.0 on the charger but it is actually 2.0
Measured with an online voltage meter, it is only charging my LG G5 with 9v whereas my other QC 3.0 chargers output around 6v. Now this won't make much difference with screen off, with both charging at similar 3A rate, but when screen on, the 3.0 chargers output 1A but this only manages 0.3-0.6 depending on device temperature, exactly the same behaviour as other QC 2.0 chargers I have.
If you've bought 1 & it says 9v ish on a volt meter or you don't get 1A when screen on, it's not QC 3.0
Sent from my LG-H850 using Tapatalk
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Interesting.... Especially since I currently have this charger on the way.
I know when I mount my phones to the windshield mount it get quite hot. Is it possible the is causing the circuit to reduce draw to protect from over heating? Have to tried contacting AUKEY about the issue?
I'll have to check it out once it arrives.
RojasTKD said:
Interesting.... Especially since I currently have this charger on the way.
I know when I mount my phones to the windshield mount it get quite hot. Is it possible the is causing the circuit to reduce draw to protect from over heating? Have to tried contacting AUKEY about the issue?
I'll have to check it out once it arrives.
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I was hot swapping several times between this & another 3.0 car charger. Without fail the other performed exactly as my AC QC 3.0 chargers & this just like my 2.0 ACs. In terms of mAh & voltage.
I'm just sending it back for a refund as can't be bothered getting into a to & throw with them. I'm actually a bit angry about it.
Sent from my LG-H850 using Tapatalk
I've decided to send an email to Aukey. Will update with their response.
Sent from my LG-H850 using Tapatalk
stuart0001 said:
I've decided to send an email to Aukey. Will update with their response.
Sent from my LG-H850 using Tapatalk
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I look forward to hearing what they say.
Mine hasn't shipped yet (I ordered a few things together from Amazon).
Aukey is a Qualcomm certified QC 3.0 brand. I was looking to buy the Aukey as well but evidently buying one for the expected results seems like buying a box of kiddy cereal looking for the last piece of a puzzle.......or visiting McDonald's for the missing Monopoly piece. Wow.
Did you use a usb 3 or usb 2 cable because this makes all the difference and most people don't know this.
Sent from my Nexus 5 using XDA-Developers mobile app
nitramus said:
Did you use a usb 3 or usb 2 cable because this makes all the difference and most people don't know this.
Sent from my Nexus 5 using XDA-Developers mobile app
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Not sure. It's the one that came with the G5 & gives me QC 3.0 voltages in 2 other chargers I've tried so guess it must be.
Sent from my LG-H850 using Tapatalk
I'll post my results as my Aukey Dual port QC 3.0 car charger ( as well as Aukey's dual port wall charger QC 3.0 and RAVPower 20100mAh Portable Charger with QC 3.0 & USB-C) arrives today, Wednesday 4/26/2016.
I'm going to have to check this out on my aukey car charger now...
Sent from my LG-H830 using Tapatalk
Mine arrived and checking with Ampere app on my LG G5 one port is giving me about 1400mA which is about correct. The other port read MUCH lower between 50mA to 550mA, that is waaaaaay to low.
My Nexus 6P though not a QC 3.0 still give me much higher reading in one port vs the other. I know Ampere isn't super accurate but the difference is too big.
I'll have to try again tomorrow.
Try anker or HCQS
lenteenes said:
Try anker or HCQS
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I like Anker but haven't seen a dual car charger where both ports are QC 3.0 or a USB type see port and an QC 3.0 port.
So I did a quick test last night. I decided to ignore the Ampere reading and just charge my LG G5 from about 30 minutes (31 minutes actually). My G5 went from 49% to 89% in 31 minutes while simultaneously charging my Nexus 6 P (not A QC 3.0 device) from 43% to 62% in the same 31 minutes.
so it appears to work in actual use. I'll have to try again soon, but for now I think I'm ok with it and will trust my results more than the reading from the app.
RojasTKD said:
So I did a quick test last night. I decided to ignore the Ampere reading and just charge my LG G5 from about 30 minutes (31 minutes actually). My G5 went from 49% to 89% in 31 minutes while simultaneously charging my Nexus 6 P (not A QC 3.0 device) from 43% to 62% in the same 31 minutes.
so it appears to work in actual use. I'll have to try again soon, but for now I think I'm ok with it and will trust my results more than the reading from the app.
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In those circumstances you won't see any differences between QC 2 & 3.
A couple of ways to spot the difference
1. With an in-line voltage meter the QC 3 will output at various volts between 6&9v. The QC2 will show just 5 & 9v
2. With screen on & phone temp above 35c (to a lesser extent 32c) the QC2 will charge significantly slower than QC3
Sent from my LG-H850 using Tapatalk
Another update. I was running a stress test to warm the phone for more comparison & this charger couldn't even provide a net positive charge. When I swapped to another 3.0 (review up soon ), I was getting 1Amp charge again.
The extra voltage steps in QC3 definitely are a big advantage when phone under heavy load.
Sent from my LG-H850 using Tapatalk
Can anyone confirm that quick charge or LG fast charge only activates when batt is below 10% and fast charges it to 80% then normal charging happens up to 100%. I read that somewhere. Charging with the stock LG I expected it to be fast. But that was charging from 22%. I had to chance to charge from 5% and in 15 mins it was up to 30%.
Sent from my LG-H860 using XDA-Developers mobile app
vizgor said:
Can anyone confirm that quick charge or LG fast charge only activates when batt is below 10% and fast charges it to 80% then normal charging happens up to 100%. I read that somewhere. Charging with the stock LG I expected it to be fast. But that was charging from 22%. I had to chance to charge from 5% and in 15 mins it was up to 30%.
Sent from my LG-H860 using XDA-Developers mobile app
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Click to collapse
I get fast charge whatever percentage I start at.
3C reports 3A to about 60% then gradually tails off.
Sent from my LG-H850 using Tapatalk
vizgor said:
Can anyone confirm that quick charge or LG fast charge only activates when batt is below 10% and fast charges it to 80% then normal charging happens up to 100%. I read that somewhere. Charging with the stock LG I expected it to be fast. But that was charging from 22%. I had to chance to charge from 5% and in 15 mins it was up to 30%.
Sent from my LG-H860 using XDA-Developers mobile app
Click to expand...
Click to collapse
As stated above, the percentage your phone is currently at shouldn't matter. The phone and charger will determine the best voltage and Amperage at witch to charge depending on current charge levels and temperature.
If you're batter is already at a high level it will slow down the charging to properly "fill" up the battery safely.
Having to be under 10% is ridiculous. I try to never let my phone get below 40% if possible, much less 10%.
Quick update. I have been contacted by the seller & they say that, whilst the charger does meet QC 3.0 certification, they have identified that the "PD" chip is incompatible with the LG5. They have a new version they are sending me that should rectify this. I'll post an update once I've tested.
Sent from my LG-H850 using Tapatalk

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?)
Click to expand...
Click to collapse
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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Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.

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