In Xiaomi mi 4 quick charge2.0 not enabled - Xiaomi Mi 4

Seems Qualcomm which charge 2.0 not working with Mi 4 original cable anyone suggest how enable fast charging on Xiaomi mi 4.

If I'm not mistaken, you need a charger with higher outputs then the standard wall charger shipped with most phones. Just a guess though seeing as my Xiaomi Mi 4 charger is a five volt charger.

Charger
My charger say Output 5v=2A/9v=1.2A/12v=1A i dont know if that whats needed but it charges very quickly.

Plajz0r said:
My charger say Output 5v=2A/9v=1.2A/12v=1A i dont know if that whats needed but it charges very quickly.
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Click to collapse
5v is the voltage standard. What you want is AMPS. ALWAYS select 5 volts.
Computers (USB 2.0) can output maximum 0.5A (500ma) at 5 volts, while USB 3.0 can output 900ma or 0.9A.
Most MicroUSB chargers output anything from 1A to 3A+, with 1A and 2.1A being the most common.
So while a 1A will charge your phone a X percent per minute, a two amp charger will charge it at almost double the rate (not exactly, but close enough).
I do however (and I stand corrected), recommend not to go too high an amperage, while your phone my not get damaged, slow and steady charging is better for the battery than high current, quick charging.
Some phone, like my Galaxy S5, requires a 2A charger, but other phones may not like it.

I think it's always enable ...

Related

AC vox s710\s711

Hi, i have this smartphone, but i don't have a AC,
I charger only on USB Port, but any other ac usb type didn't work? i was thinking in AC charger Motorola V3 dc output 5v - 850mah
ac charger s710 = 5v 1A ?
works?
[]s
yes, the charger is 5 Volt - 1 Amper
Yes any generic usb charger with those specs should work fine 5V 1A
As far as I know, there are no USB chargers that go over 5V @ 1aH.
Anything that has a miniUSB end, you can plug in. One with lower amperage will just charge slower.
well maybe because USB specs from what I know deliver a max 500mA.
Btw I have a charger that delivers 5 V 2A but it has a standard jack...but with a solder you can put on it a mini USB plug so...
But more current you deliver on charge the more the battery drops his effeciency in time.
And ha4waii is right less current means slower charges.
But remeber the values of the current are peak values expressed in Amperes and not amperes per hour (it's not a battery it's a charger)
the current is a peak so it is not Ah it's a charger not a battery LoL
tanks for the help....
well, the ac from motorola v3, have mini-usb jack, but the specs.... dc Output -> 5V... 0,15A
i need a ac, anyone can send a acpower and battery to brazil???
in brazil ac power costs.... about Us $50 ...
Even a generic one????
it used to cost about 5-15 $
http://shop.ebay.it/items/_W0QQLHQ5...0.l1313&_odkw=mini+usb+charger+wall&_osacat=0
what language can use in your phone? i want a Spanish lastest ROM downloaded from HTC, regards!

Note 3: Qualcomm Quick Charge 2.0

Hi,
Has anyone tried to charge the Note 3 with a Qualcomm Quick Charge 2.0 charger and does it charge significantly faster?
The reason I ask is that our phone's processor, Snapdragon 800, is listed as supporting Qualcomm Quick Charge 2.0:
https://www.qualcomm.com/products/snapdragon/processors/800
The technology works by ramping up the charging voltage when the battery is low, and slowly reducing voltage as the battery fills up.
This is exactly the same technology which the Note 4 uses and dubs "Adaptive Fast Charging".
The latest Qualcomm Quick Charge 2.0 chargers charge at:
12V * 1.5A = 18W
9V * 2A = 18W
5V * 2A = 10W
(voltage is reduced as battery charges up).
You can see the voltage/amperage of the charger written somewhere on the charger.
Chargers that are 5V/2A only (e.g. stock charger) are not quick charge 2.0.
This is not to be confused with USB 3.0 charging (which is only ~5V * 1A = 5W from PC), or 2A chargers (5V * 2A = 10W from 0 to 100%).
Our Note 3's chipset supports this, but it won't be very surprising if Samsung disables this on the firmware or kernel level.
If anyone has tried charging the Note 3 with a QC 2.0 charger, your input is much appreciated!
I haven't used that charger, but I've been charging at nothing but 2A for quite some time (via kernel settings). It seems like it charges up pretty damn fast, and I haven't noticed any ill-effects from it....
Note 4 charged with quick charge, discharges faster too, so I think it's useless if the battery life decreases.
Maybe it's a problem of the note 4, but I don't think so.
Morningstar said:
I haven't used that charger, but I've been charging at nothing but 2A for quite some time (via kernel settings). It seems like it charges up pretty damn fast, and I haven't noticed any ill-effects from it....
Click to expand...
Click to collapse
It charges at double speed at <80% (or similar, varies depending on when it throttles to 5W/2A).
Essentially, you can charge up to 60-80% within half hour, as advertised by Qualcomm.
That's extremely useful if you simply want to add 30% to your battery life with 15 minutes of charging before leaving the house, etc.
The difference is more obvious with half hour: 50-60% charge versus 20-30%.
Hi, to which kernel are you referring to old ? Some chancethat it is vcompatible with stock Lollipop ? Thanks
Checked with a multimeter, maximum I can reach is 5V on a Note 4 charger even I am charging from 10% and screen off
Samsung disabled this. Didn't try on 5.0 anyway.
GeneralMeow said:
Checked with a multimeter, maximum I can reach is 5V on a Note 4 charger even I am charging from 10% and screen off
Samsung disabled this. Didn't try on 5.0 anyway.
Click to expand...
Click to collapse
To my knowledge, the Note 4 charger is not a Qualcomm Quick Charge 2.0 charger.
It is a Samsung-proprietary variant for the Note 4 only, and unlike other QC 2.0 chargers only toggles between 5/9V instead of 5/9/12V.
Note 4 however does support the Quick Charge 2.0 standard as well.
Please do correct me if I'm mistaken.
tsj5j said:
To my knowledge, the Note 4 charger is not a Qualcomm Quick Charge 2.0 charger.
It is a Samsung-proprietary variant for the Note 4 only, and unlike other QC 2.0 chargers only toggles between 5/9V instead of 5/9/12V.
Note 4 however does support the Quick Charge 2.0 standard as well.
Please do correct me if I'm mistaken.
Click to expand...
Click to collapse
If I remeber well the stock charger from Note 4 has 9V/1.5A and 5V/2A
calinormy said:
If I remeber well the stock charger from Note 4 has 9V/1.5A and 5V/2A
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Click to collapse
Yep, but the Note 4 charger's adaptive charging is proprietary and restricted to Samsung's Note 4 - it's not a Quick Charge 2.0 charger AFAIK.
Anyone actually tried charging the Note 3 with a Quick Charge 2.0 charger?
e.g. http://www.amazon.com/Tenergy-Unive...d=1421031846&sr=8-1&keywords=quick+charge+2.0
No, but a friend in work has a note 4, I will test tomorrow an post back.
Any specifics you want testing, results with various apps etc?
I don't think so that is supported, but some1 got to try it...
https://www.qualcomm.com/products/snapdragon/devices/all?feature=Quick Charge 2.0
tsj5j said:
To my knowledge, the Note 4 charger is not a Qualcomm Quick Charge 2.0 charger.
It is a Samsung-proprietary variant for the Note 4 only, and unlike other QC 2.0 chargers only toggles between 5/9V instead of 5/9/12V.
Note 4 however does support the Quick Charge 2.0 standard as well.
Please do correct me if I'm mistaken.
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Click to collapse
Fast Adaptive charger comes with galaxy s6 i tried this charger on my note 3 but fast charging is not work on note 3 and this charger is intelligent itself to deliver required amount of current to mobile my phone charged simple on 1200mAh to 1800mAh regular current delivered to Note 3 by Fast Adaptive charger when i put it on s6 it automatically detect it and on fast adaptive chrging it gives 9V ,1.97A to maintain high speed charging but not on Note 3
boomWow!
Years later, I've tried my Nexus 6's FastCharge 2.0 AC adapter and it charges significantly faster.
Doesn't charge any faster on stock firmware, checked using ampere , charges at the normal 1200mah with screen on which I believe is the max with the screen on surely there is someway to unlock it
yes it supports you can buy Tech Sense Lab 3.4 Amp Dual USB Car Charger
The ampere app shows my Note 3 charge at a 1.8A from normal 1.2A steady flow, this is with Qualcomm 2.0 QCharge... It is probably the max rate for the device.. It is fast, especially within the lower band of the battery capacity.
With Qualcomm QuickCharge 2.0 the voltage does not ramp down, only the current does. The whole point of QC is to overcome the resistance inherent in many micro-USB cables, and that's done by boosting the voltage. My Note 4 charges at 5V/1.7(ish) amps on a non-QC charger, and 9.4V at the same current on a QC 2.0 charger, and that voltage is maintained throughout the charge with the current ramping down.
My girlfriend's Note 3 does not charge at increased voltage on my QC 2.0 charger. It just does 5V charging.
Measurements were made at the output of the charger with a USB digital multimeter.
McGyver dei poveri said:
Note 4 charged with quick charge, discharges faster too, so I think it's useless if the battery life decreases.
Maybe it's a problem of the note 4, but I don't think so.
Click to expand...
Click to collapse
I haven't had any problems with battery life on my Note 4, and I quick charge mine frequently. Must be a problem with YOUR Note 4.
My adapter is 9v 2a and i can say it charger significately faster. Alot faster.
Stock charger takes anywhere between 3-6 hours where as mine takes 2-3 hours max.
I have got a replacement battery(chinese one) but is equivalent to the stock samsung battery.
Also i am using a ported rom from the s7 edge so fast charging could possibly be enabled within the kernel especially if the cpu supports it
My adapter is 9v 2a and i can say it charger significately faster. Alot faster.
Stock charger takes anywhere between 3-6 hours where as mine takes 2-3 hours max.
I have got a replacement battery(chinese one) but is equivalent to the stock samsung battery.
Also i am using a ported rom from the s7 edge so fast charging could possibly be enabled within the kernel especially if the cpu supports it

Power Delivery providing a lot less than 15W charging. Hovering around 4.5v/1.8A

The 7 Pro is supposed to support 5v/3A, 15W charging from a Power Delivery charger, but I'm only seeing 4.5v/1.8A, which is about 8W slow charging.
Am I reading this wrong? What's the best/highest/fastest charging you've seen from a PD charger?
Charger used: https://www.amazon.com/gp/product/B07H9WMW6N/ USB C PD Charger with GaN Tech, RAVPower Wall Charger Adapter 45W Type-C Power Delivery
Cable used: https://www.amazon.com/gp/product/B06Y25Y6WX/ Anker Powerline+
Your battery is above 50% and charging speed slows with increasing battery percentage. To determine maximum speed of USB PD for the OP7Pro you need to check at a lower charge level. Warp charge will also not charge with 30W all the way.
What battery app is that?
Even with the OP charger once you get to 50-70% changing rate slows down by at least 50%, try when the phone is at 10% and then watch it for a couple minutes, that will tell you the max for that particular charger
Sent from my GM1915 using Tapatalk
Protomize said:
What battery app is that?
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Click to collapse
It's the built in diagnostics. Dial *#808# in the OP Phone app.
Swipe to the second screen, "Device debugging", and there's one test for Normal Charger, and one for Fast Charger.
Harry Pothead said:
Your battery is above 50% and charging speed slows with increasing battery percentage. To determine maximum speed of USB PD for the OP7Pro you need to check at a lower charge level. Warp charge will also not charge with 30W all the way.
Click to expand...
Click to collapse
DonKilluminati23 said:
Even with the OP charger once you get to 50-70% changing rate slows down by at least 50%, try when the phone is at 10% and then watch it for a couple minutes, that will tell you the max for that particular charger
Click to expand...
Click to collapse
That's a great point, thanks! I'll try again from a lower charge state!
OnePlus has said it supports 15w PD while screen is off and 5v 1.5a while display is on.
parsa5 said:
OnePlus has said it supports 15w PD while screen is off and 5v 1.5a while display is on.
Click to expand...
Click to collapse
Link?
338lm said:
That's a great point, thanks! I'll try again from a lower charge state!
Click to expand...
Click to collapse
Basically no change when the battery was much lower :crying:
parsa5 said:
OnePlus has said it supports 15w PD while screen is off and 5v 1.5a while display is on.
Click to expand...
Click to collapse
Relatively no change between screen on vs off
338lm said:
Link?
Click to expand...
Click to collapse
Question: Do the OnePlus 7 and 7 Pro supportpower
338lm said:
Basically no change when the battery was much lower :crying:
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Click to collapse
I'm seeing the same thing. I tried three different USB PD chargers that I used on my Pixel XL. The highest charge current I saw was 1980mA. The battery was in the low to mid 30% range. I used the Ampere app. To check the accuracy of the app, I tried two things. 1. I used the stock Oneplus Warp charger and Ampere showed 5740mA (wow, 5.7A is kicking some butt!). 2. While using my Belkin USB-PD car charger, I noted the voltage and current coming from my bench power supply. The bench supply was outputting about 10W so an Ampere reading of about 8W of energy into the phone made sense. I used three different cables too.
All my cables are USB-C to USB-C since all my PD chargers have a USB-C port on them. I see the standard for USB 3.1 has a max rating of [email protected] which can be done over a USB-A to USB-C cable. I wonder if the only way to get 15W into the phone (besides the Oneplus chargers) is to use a USB-A to USB-C cable with a charger that has a USB-A port and can support 3A? Edit: No, more research shows there there should be no problems with C-C. The Belkin PD car charger I have doesn't specifically say it supports [email protected], but the Anker AC USB charger does list [email protected] I can't get more than about 1900mA out of it even with the battery low.
I basically support all the users that OP failed this point to include proper USB PD function. Only 7.5w to 10w is supported without any dash or warp charger. Confirmed
should be fixed with 10.0.2
Power Delivery (PD) is very complex. For example the USB PD Revision 3 specification is 657 pages. Much of the complexity involves the negotiation protocols between chargers and phones or other devices. In cases where a compatible protocol can't be negotiated between a charger and phone the page 242 of the spec says: "Shall supply the default [USB 2.0], [USB 3.2], [USB Type-C 2.0] (USB Type-C®) or [USBBC 1.2] voltage and current to VBUS when a Contract does not exist (USB Default Operation)." That's my guess why people are seeing lower charging currents than advertised by the chargers.
The OP's charger has this interesting cryptic note on their Amazon page: "Rapid charge: USB-C charger delivers 45-watts of power to charge and recharge all of your important devices at a high speed with PD 3. 0 (5V/ 3a, 9V/ 3a, 12V/ 3a, 15V/ 3a, 20V/ 2. 25a) Note: USB adapter will not be able to trigger the PD protocol
Specifications are at https://www.usb.org/document-library/usb-power-delivery

Poco F2 Pro Charging Study - How Fast does it charge?

Hello
So a couple of weeks back I upgraded to the Poco F2 Pro 6/128GB from my Mi 9T.
I have been using a magnetic charging cable with my Mi 9T, with a little magnetic part permanently in the usb port for convenience with a standard QC3.0 charger. Worked great and charged fast at 18W.
I wanted a similar solution for my Poco F2 Pro.
So I have done some testing and the results might surprise you.
Poco supports 30W Mi Turbo Charge which seems to be a custom Xiaomi charging protocol and does not seem to play nice with standard USB PD3.0 Protocol.
I have done charging tests from ~5-20% battery for maximum charging speeds and tested the actual charge rates with a USB Voltmeter
Voltmeter:
https://www.ebay.co.uk/itm/USB-Mete...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2648
Test 1: Original Charger and Cable
Result: 30W Mi Rapid Charging (~9.6V, 3.1A) As Expected
Even tho the original charger is rated at Max 33W, Poco only charges at 30W Max.
Test 2: 60W USB PD3.0 Charger + 5A Type C to Type C Cable
Charger: https://www.amazon.co.uk/gp/product/B0824S38VC/ref=ppx_yo_dt_b_asin_image_o07_s00?ie=UTF8&psc=1
Cable: https://www.amazon.co.uk/gp/product/B07QPNRGYH/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
Result: 18W Standard Fast Charging (~9.2V, 1.9A)
I did multiple tests to check if the charger is legit (which it is, many of my friends use it with different devices and it works great) with my brothers Pixel 4XL, and my friend Xiaomi Mi 9.
Pixel Charged at 18W, Mi 9 at 27W.
The phone did not charge at 27W (~9V 3A), even to it does support PD 3.0 charging.
Test 3: Original Charger with a 3A Ugreen Magnetic Cable
Cable: https://www.ebay.co.uk/itm/Ugreen-M...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2648
Result: ~25W Mi Turbo Charging (~9.6V, 2.6A)
This is very interesting since it does trigger the Mi Turbo Charge, it is not the full speed charge like with the original setup.
Original setup also has a charging animation, with the % increasing at a steady speed.
With the Ugreen Cable, there was no animation.
Test 4: Original Charger + 40W Huawei Supercharge Cable
Cable: https://www.amazon.co.uk/gp/product/B08CR7W2T1/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
Result: ~25W Mi Turbo Charging (~9.6V, 2.6A)
The original Xiaomi Cable is a 5A Cable, so I thought id try a Huawei Supercharge Cable, but it ended up charging the same as a 3A Ugreen Cable
Test 5: 60W USB PD3.0 Charger + 5A Magnetic Type C to Type C Cable
Charger: https://www.amazon.co.uk/gp/product/B0824S38VC/ref=ppx_yo_dt_b_asin_image_o07_s00?ie=UTF8&psc=1
Cable: https://www.amazon.co.uk/gp/product/B08HLN27DP/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
Result: 18W Standard Fast Charging (~9.2V, 1.9A)
Again, standard 18W fast charging, not 27W as you would expect.
Conclusion:
From my testing, the only way to charge the Poco at Maximum speed of 30W is with the charger and cable which I find very strange. Does the original Xiaomi cable have a custom Xiaomi chip which handshakes with the charger to get the full 30W Mi Turbo charge?
With a PD3.0 Charger, I was only able to achieve 18W of fast charging, again very strange, since Poco should support 27W (~9V 3A) charging with any PD3.0 Charger.
I have settled for a setup with the Ugreen Magnetic Cable and the Original Charger for convenience, ease of use and preventing the USB port from being worn out. I am loosing about 5W of speed, which does slightly increase the charging time. (I charge my phone to ~85% max)
(If there is something wrong with my methodology let me know and I will re-test if needed)
I approved with an Aukey 29w Fast Charging charger (model pa-y7) and the same charge at 18W, even with the type-c cable on both sides (Baseus brand cable up to 60W)
It seems like Xiaomi cable and charger have an extra pin. That might trigger and power the turbocharge
osvaldo.17 said:
This little pin makes the difference.!
Click to expand...
Click to collapse
I've tried this one:
For Xiaomi GaN 65W Travel Charger USB Type-C Smart Output PD Quick Charge | eBay
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I don't know at which rate it charges but it triggers Charge turbo animation with the % increasing at a steady speed with almost any proper USB-C to USB-C cable.
I've also found that if you launch the CIT on the phone by tapping on kernel version 3 times on settings->About this phone->All specs
and go to the charging test (number 24) you can check which protocol is being used
If you use any QC3.0 charger it says USB_HVDCP, which triggers fast charging but not the charge turbo animation.
If you use a regular PD charger it says USB_PD which also triggers fast chargingbut also not the charge turbo animation.
If you use the original setup it also says USB_PD which means that extra pin it has on the USB-A connector is wired in a weird way it actually negotiates usb PD protocol, which I can also confirm because I connected it to a Thinkpad T480 and with the Lenovo Vantage software gets 27W charging, which is not possible with any USB-A to USB-C cable and QC3.0 charger.
Which may mean that maybe Xiaomi didn't want to pay for the QC4.0+ chipsets or something and did some weird stuff to get PD through QC3.0 by that pin and through the F2s software reducing the cost of the charger in the box and whatever else. As for this GaN 65W charger I have no idea on how they pull that off but is a proper PD charger
Since the update to Android 11, a set of cables that previously triggered the Turbo Charge, now suddenly work only as Fast Charge.
They were a bit slower than original before, but now they are a lot slower.
I only have the Accubattery measurements:
cca 4000 mA average on Android 10,
cca 3000 mA average on Android 11.
While the original charger + cable shows about 4500-5000 mA average.
They really managed to screw this device.
On ArrowOS my device charging at 1.8A and 7.5V with original charger and wire... so it depends on software. But anyway I don't want to downgrade from perfect OS to buggy MIUI only because of that.
I also have seen a weird change in charge speeds..
Used to be totally fine but it seems that for a while now the speeds are very slow and quickcharge isnt working anymore..
shicomm said:
I also have seen a weird change in charge speeds..
Used to be totally fine but it seems that for a while now the speeds are very slow and quickcharge isnt working anymore..
Click to expand...
Click to collapse
hey have the same problema. here. teh only way to get fast chager is with the original charger al cable. PD charger give me fast charge. but all my other chargers that gives me fast charger in other devices gives me NOTHING now.
original charger 4300 ma,
PD: 1200 ma
fast chargers QC 3 and others: 230 ma !!
****ty old chargers : 230 ma.
so what the hell? I was thinking that I screwed the port of the phone with magnetics cables before read this.
Just my 2 cents here. Don't try to charge this phone with super fast chargers. Mine developed the well known fault that you needed to press the corner of the phone to get it to start charging. I even opened it and put a bit of a tape behind the ribbon cable connector (as some guy suggested on YT). It started charging again and then after a couple of weeks and a few more quick charges it stopped charging at all. I guess heat affects the connector or some element on the board. I've just ordered a new usb board and ribbon cable from Ali and if the phone comes back to life again I will never ever use the original rapid charger that came with the phone.

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...
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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"...?
Click to expand...
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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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