Samsung Adapter alternative? - Xiaomi Mi A3 Questions & Answers

Hello, im new with Xiaomi phones so i came here to ask for some advice.
i bought a Xiaomi Mi a3 (obviously ) 2 days ago and noticed that it was capable of Fast Charging.
18W fast Charging. but inside the Box it only has a 10W charger.
the specs of the 18W xiaomi Charger is:
Input: 100 - 240V~ 50-60Hz 0.5A
Output: 5V -- 2.5A [12.5W] / 9V -- 2A [18W] / 12V -- 1.5A [18W]
I have my Old Samsung Note 5 Fast Adaptive Charger 15W (i think) specs:
Input: 100 - 240V~ 50-60Hz 0.5A
Output: 9V -- 1.67A [15.03W] / 5V -- 2A [10W]
Question is, Is it ok to use the Note 5 Charger?? I will still use the Xiaomi type C Cable.
Note: i think xiaomi uses Qualcomm Universal Quick Charge technology, While Samsung Uses its own for Adaptive Fast Charging. so i don't know if it will damage the battery or something.
Reason for asking is: Information. i just wanted to know if it's Okay and not be Harmful before trying. But just in case i think i'll order a Xiaomi 18w Charger.
(bonus question: to those who Have an 18w Charger. a lot of test on youtube about the 18w Charger not really faster than the 10w charger. is it really worth the buy/faster??)
thank you. :highfive:

that's kinda quick 1:40min 10-95% . actually i joted down my 1st Charge yesterday night.
10% battery - time 9:47
66% battery - time 10:48 (44 mins till Fully charge. [phone said])
100% battery - time 11:43 (this last one i don't really know, . . . . i was watching a tv show and just realized the time and thats when i looked)
so i guess 1hr 56mins kinda more or less i guess using the 10W charger. . . . if what you said is true then next charge i will try using the 15w samsung charger and post the time.

Results of using Samsung 15W(ish) Adaptive Charger [Original Charger Note 5]
10% battery - 5:51 pm
11% battery - 5:52 pm (did a double check hehe)
100% battery - 7:24 pm
So it took 1 hr and 33mins. , can someone tell me their 18w Charger Test Results?

Just buy a 18watt charger.

Does someone tried to monitor Quick charge how does it work? Which type our phone use ? 5V 3A, 9V 2A or 12V 1,5A?
I'm on PE and with stock kernel qc doesnt work, but if I use bit kernel it goes 5v 3A.

Related

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Xiaomi Mi A2 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
The phone ships with a quick charge 2.0 charger. The phone supports 3.0 and also 4.0 for India markets. Mine is Malaysian so it's 3.0. With stock charger it takes 1 hour 20mins + to get fully charged. Not too bad. With a QC 3.0 charger (Using my mi max 2 charger) it takes about less than an hour to get fully charged based on estimates. Charges quite quickly to 70% so stock charger is actually fine.
I think it supports USB PD as well, I used my pixel 2xl charger and it showed that the phone is charging rapidly, will do another full test and post results!
Rueddi_ger said:
How can I find out which QuickCharge version my A2 supports? I own the global version.
Click to expand...
Click to collapse
If it's the global version, it should be QC3.0 . QC4.0 is only for India if I am not wrong.
Rueddi_ger said:
Oh that's sad. Is it worth buying a QC 4.0 charger anyway? Or is that wasted money?
Click to expand...
Click to collapse
I don't think QC 3.0 is that much slower compared to QC 4.0. It's not like Oppo's new charge system, now that's quick haha. QC 3.0 is fine. I am still using QC 2.0 and it's all good no issues with it.
Timmychin said:
The phone ships with a quick charge 2.0 charger.
Click to expand...
Click to collapse
I charged it in like 80 minutes with its charger but the charger doesnt say that it has quick charge
I was surprised
XDA_RealLifeReview said:
To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Xiaomi Mi A2 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
Phone supports quick chargers from xiaomi only. I have tried 2 different qc 3.0 certified chargers and both get 1800mah to my A2. My charger from my old Mi5s plus works fine and gives 2400mah.
maitred said:
Phone supports quick chargers from xiaomi only. I have tried 2 different qc 3.0 certified chargers and both get 1800mah to my A2. My charger from my old Mi5s plus works fine and gives 2400mah.
Click to expand...
Click to collapse
I got the cheapest qc 3.0 from Amazon, tycipi or something like that. According to ampere app it is providing 2400 mah, it charges the phone quickly
I got the global version, so only QC3.0.
I have an Aukey PA-T8, 8 ports 5V 2.4A, 2 QC3.0 ports.
On 2.4A port, Ampere say 1800mA.
On QC3.0 port, Ampere say 2300mA.
Rueddi_ger said:
How can I find out which QuickCharge version my A2 supports? I own the global version.
Click to expand...
Click to collapse
If you own a Global Version, your device will only support QC 3.0. Only Indian Variants support QC 4.0
My A2 unit is behaving quite strange, first let me say that Ampere is not so reliable as a USB power monitoring device, which I have (this unit gets you also the voltage which is being supplied to the phone).
MY measurements (with supplied USB-C cable) are:
- Stock charger: 1,6A voltage 5V
- QC 3.0 charger: up to 2,4A voltage 6,5V
- QC 2.0 Charger (works with Asus Zenfone 2 and Galaxy S8 on quick) - sometimes ZERO - just shuts down after a minute
Other 2A 5V chargers often not more than 0,6A (depending on cable)
So, A2 is very sensitive with cables and charging electronics and probably cannot accept 9V.
Global version.
Sometimes the phone when plugged in charger shows "Charging slowly" and sometimes "Charging Rapidly", What's up with that?
QC 3.0 (smartphone ON)
Aukey PA-T9 QC 3.0 charger
AmazonBasics USB type C to USB A male 3.1 gen2 0.9m black cable
Plugable USBC-VAMETER v.2 usb type c voltage & amperage meter
Smartphone ON, screen OFF (turned on just for taking pics)
Charging time: about 1h 40m from about 18% to 100%
See attachments for more details.
QC 3.0 (smartphone OFF)
Aukey PA-T9 QC 3.0 charger
AmazonBasics USB type C to USB A male 3.1 gen2 0.9m black cable
Plugable USBC-VAMETER v.2 usb type c voltage & amperage meter
Smartphone OFF
Charging time: about 1h 30m from about 20% to 100%
See attachments for more details.
PD 3.0 (smartphone ON)
Aukey PA-Y8 PD 3.0 charger
Anker Powerline II USB-C to USB-C 2.0 90cm cable
Plugable USBC-VAMETER v.2 usb type c voltage & amperage meter
Smartphone ON, screen OFF (turned on just for taking pics)
Charging time: about 1h 40m from about 18% to 100%
See attachments for more details.
PD 3.0 (smartphone OFF)
Aukey PA-Y8 PD 3.0 charger
Anker Powerline II USB-C to USB-C 2.0 90cm cable
Plugable USBC-VAMETER v.2 usb type c voltage & amperage meter
Smartphone OFF
Charging time: about 1h 30m from about 18% to 100%
See attachments for more details.
tomsag said:
A2 [...] probably cannot accept 9V
Click to expand...
Click to collapse
With a Power Delivery 3.0 charger and smartphone off, it can surely be charged with a voltage of about 9V.
I don't know if it's possible also in other cases.
Is the QuickCharge 4.0 a software or a hardware feature in the Indian version? Just wondering if QC 4.0 can be "unlocked" in the global version through future software tweaks?
With the stock charger , it's charged after 3 hours it's normal ?
Candy_Pineapple said:
With the stock charger , it's charged after 3 hours it's normal ?
Click to expand...
Click to collapse
Absolutely no

Does plus really support Quick charging?

Hi i read that redmi 5 plus support qc so i had aquired samsung quick charger.When plugged phone shows quick charging but when i mesure mA while charing with qc and with normal charger there is no big difference according mesuring software.So what is real truth about qc?
petric1 said:
Hi i read that redmi 5 plus support qc so i had aquired samsung quick charger.When plugged phone shows quick charging but when i mesure mA while charing with qc and with normal charger there is no big difference according mesuring software.So what is real truth about qc?
Click to expand...
Click to collapse
Redmi 5 Plus supports QC (3.0 to be exact, as it's Snapdragon 625). Apps measuring charge rate won't show you real current, it's only approximation.
I've tested my charger, which supports QC 3.0, my 5+ uses 9Volts at almost 2Amps (when charging from 15-20%). Measuring software won't show you voltage that you are using to charge so you may not see the difference. But doing quick math - 5V*2A=10W (standard charging brick) whereas QC charger will use 9V*2A=18W. That means you are charging with 80% more power.
Keep in mind that charging with QC will get your phone a bit warmer, so phone will start to throttle the current, meaning that you won't be charging from 0% to 100% at full 18W
Yes. It charges with 9v and 1,7 amp max. (9v is static, amp is variable, that means it has only QC 2.0 mode.)
Its way faster than standart charger. I have Tronsmart QC 3.0 charger. But you can go with QC 2.0 charger.

Baseus 30W charger at Mi 9

does anyone tried to charge Mi 9 with this Baseus charger?
https://www.aliexpress.com/item/32988045731.html?spm=a2g0o.cart.0.0.71f43c00TyHdOp
is this charger compatible with 27W xiaomi charging?
I think it's just Quick Charge 3.0. You should buy the 27W charger imo. But i could be wrong
I have it, it does quick charge but not charge turbo
Good I stopped by XDA before purchasing it.
It does say if you scroll down on its specs it's a QC4 charger, but I assumed the described output would be a sum of both USB ports working simultaneously.
Already posted about it some weeks ago.
https://forum.xda-developers.com/showpost.php?p=79530777&postcount=73
It's indeed just a QC 4.0 charger. Will only do 18W.
Hi, I have one. For it to work properly you have to have the cable of more than 30w.
Load much faster than the original that comes in the box. I did a quick test from 75% to 100% with the phone turned off and charged in 25min; so you can assume if it's fast or not.
WTF ; does this phone even do QC4 ... the Xiaomi offical charger is 3.0 and I bought a $68 dollars Belkin QC : 4.0+ offical as per reviews and it caps out at. 3470 : it NEVER has said fast or TURBO and it ofen Ampere reports 1800 mah ? Can anyone explain this in any way
Do you really have to post the same thing in every single charger related topic ?
Ataemonus said:
Do you really have to post the same thing in every single charger related topic ?
Click to expand...
Click to collapse
I couldn't find this :/
hardtheory said:
I have it, it does quick charge but not charge turbo
Click to expand...
Click to collapse
Thanks for info dude
I suspect that Turbo Charge only happens with the 27W factory charger.
Because my Hama QC4+ charger, certified by Qualcomm, charges definitely faster than the 18W charger found in the package, but does not say Charge Fast or even Charge Turbo.
twojastara-5 said:
does anyone tried to charge Mi 9 with this Baseus charger?
https://www.aliexpress.com/item/32988045731.html?spm=a2g0o.cart.0.0.71f43c00TyHdOp
is this charger compatible with 27W xiaomi charging?
Click to expand...
Click to collapse
Call me crazy but I think it will charge the device at 27W speed.
A lot of people don't seem to realize but the "Xiaomi Turbo Charger 27W" is actually QC3, not QC4+, and it does charge the device at 27W. If you find a QC4+ charger that supports 27W and up, you will still get 27W charging but you won't see "Charge Turbo" because it will use the better, newer charging standard.
This can make charge turbo QC 3.0 and it's cheaper and with more ports:
https://www.banggood.com/AiNaU-3-US...amsung-S8-Letv-Xiaomi6-mi5-mi6-p-1168215.html
lusp00ky said:
This can make charge turbo QC 3.0 and it's cheaper and with more ports:
https://www.banggood.com/AiNaU-3-US...amsung-S8-Letv-Xiaomi6-mi5-mi6-p-1168215.html
Click to expand...
Click to collapse
Yeah but it can only charge at standard QC3 speeds, aka 18W at max. 9V/2A like the original one does. But the original one can also do 12V/1.5A. So it does not "Turbo Charge".
Careful many poster here are confused. My BELKIN true QC4.0+ never ever charged over 3200mA and averaged out at under 2200mA. Posters who speak about things without testing their theories are really frustrating. Do yourself a favor don't believe this phone accepts QC4 or QC 4.0+ (at least not @July 2019) only QC 3.0 NON FAKE xiaomi 27w can do the 4600mA + it would seem. Turbo charging is required for extremely rapid charge times. Make sure you get OFFICIAL 20V 1.35A from Xiaomi for Turbo Charge sustained charge and under one hour 0--100%
I also purchased a QC 4.0+ Hama DC charger cause Xiaomi doesn't make a DC charger to my knowledge. Guess what ; 18w ish charging speeds .. no Fast or Turbo classification ...
XIAOMI Hoe do you call this phone a QC 4.0/4.0+ unit !!! Cause look close at the charger Turbo pictures they are all using the "Original QC 3.0 Xiaomi charger that we ALL should have got in the box. Instead many of us have wasted tonnes of money and time buying useless to us QC 4.0+ tech that doesn't work or WORSE fake chargers that don't do more than 18w !! By the time we we have ordered 3-4 different chargers trying to get it to work we have to order it on Ali or gearbest or Gearvita. Cause the company does make them after all!! Enjoy the brutal shipping fees and heavy wait times. Well we order this and that trying to get the darn thing to work. So annoyed right now
Hi, I got the original charger and this if it gives the turbocharged 27w charge, however the baseus charger charges the same as the one that comes in the box or with the wireless charge.
I made this short video: https://youtu.be/nFBoPxORzEg
https://forum.xda-developers.com/k20-pro/how-to/mi-9t-pro-30w-charger-experiment-t4003595
read this. Also tested with a mi9 that my fried had. same result.( Turbo charging up to 30W using the baseus charger)
Posted for those who end up here like me and read mixed info
I also have the Baseus charger mentioned above (BS-EU906), the variant with 2 usb A ports.
When I charge with the cable from my samsung galaxy tab S5e it charges with a bit over 4200mA 20w-21w.
But when I charge with my Baseus 2m 5a capable cable (CATSS-B0G), it never goes above 3400mA ~14w.
It still chargers fast, but it is not what was advertised. Both the cable and charger are rated for QC3.
Baseus GaN charger 65W + Baseus 5A cable reaches 5000mA in Ampere, which is assuming 5V (that's what Ampere is assuming), equals to 25W. The fact is voltage in QC is never stable, it's the factor that allows it to dynamically supply power based on various parameters: battery temp, device temp, battery capacity and so on. If you have a USB-C USB doctor (and it should be more accurate than any software based monitoring) you can watch yourself that both the voltage and current are alternating constantly.

Samsung Galaxy S20+ and 45W charger

Hey, is it safe to use original 45W Samsung charger daily? Got it for nice price ($25) from friend's shop.
I read somewhere it's not recommend to use 45W. Also I read S20+ supports 25W only.
Thank you for answers.
It is safe to use the charger but I am not sure if it will be able to charge it at 25W also.
So if I will use 45W, charging will be the same as with original charger?
Tried it, remaining time to fully charged is showing the same with both chargers.
RenikSK said:
So if I will use 45W, charging will be the same as with original charger?
Tried it, remaining time to fully charged is showing the same with both chargers.
Click to expand...
Click to collapse
I have the 45w charger. Charging speed depends on the phone temperature. The phone slows down the charging when phone temperature gets high. It's marginally faster than the one that came with the phone. But it's super fast charging for the first 30 minutes or so compared to our of the box.
So i use the 45w charger at office when I need to charge the phone fast and seldom fully charge it as I would unplug it and go somewhere else.
At home I just plug in the charger that came with the phone for overnight charging. Perhaps not the best to leave it charging overnight but I need a full battery next day.
Even if the charger provides 45w, the phone will only pull what is needed from the charger itself. So if the phone limits itself to 25w, then thats all it will use from the charge available.
Equally, if the charge provided is lower than the maximum the phone can use (i.e. 25w phone but 15w charger), then it will use the maximum from the charge available.
Chargers these days offer a multitude of different voltages and amp ratings, but they are smart and will only send what is requested by the device that is plugged in so there's no chance of accidental over-voltage.
I too have the 45W samsung travel charger and did a comparison on power draw compared to the 25W charger that is included with the phone. I used both the USB C cable that came with the phone (Black) and the thicker cable that came with the 45W charger (White), while measuring the power draw using a power consumption meter that was plugged into the wall between the charger and the outlet. My phone was at 40% charge when I tested. The results are shocking.
Included 25W charger
Phone's Black cable - 27.9 W
Charger's White cable - 27.2 W
Samsung 45W travel charger
Phone's Black cable - 29.7 W
Charger's White cable - 31.3 W
The similar power draw explains the charging speed difference of 10 minutes which many reviewers on youtube have observed. Taking another step, I have read that the S20 Ultra requires the charger to support PPS to achieve (10V, 4.5A) in order to charge at 45W. So why does the 45W travel charger only support (15V, 3A), (20V, 2.25A), (3.3-11V, 4.05A), (3.3-16V, 2.8A) and (3.3-21V, 2.1A)? Even the best case scenario would be to use the (3.3-11V, 4.05A) PPS profile and set it to (10V, 4.05A) to give only 40.5W. I smell a rat.
Interesting. I have also measured power draw but my results are bit diferent.
45W charger was getting up to 41W for 4 mins.
On overall charging speed 0-100% the diference is 10mins, but after charging 20mins I'm getting 54% on 45W and 37% on stock.
17% in 20mins it's a lot of difference.
45W is slowing down up to 1A after that to cool down the phone. 25w have similar behaviour.
Baseus 65W PPS chargers triggers SFC 2.0 but it takes more than 2h to charge fully. Amperage is oscilating as hell.
my Huawei 65w laptop Charger charges my S20U much quicker than the 25w charger i find...
krogoth said:
Interesting. I have also measured power draw but my results are bit diferent.
45W charger was getting up to 41W for 4 mins.
On overall charging speed 0-100% the diference is 10mins, but after charging 20mins I'm getting 54% on 45W and 37% on stock.
17% in 20mins it's a lot of difference.
45W is slowing down up to 1A after that to cool down the phone. 25w have similar behaviour.
Baseus 65W PPS chargers triggers SFC 2.0 but it takes more than 2h to charge fully. Amperage is oscilating as hell.
Click to expand...
Click to collapse
I have been continuously testing and found that if your phone has less than 30% battery and the battery temperature is under 33 ÂșC, it will charge at 40W. After that, it drops to 30W for the remainder of the charge and then drop again to 20W when the battery is above 80%.
Next step is to find a good battery data logging app which logs battery percentage, battery temperature, charging current and time. Surprising to find that not many apps can do this. Even the Battery Charging Monitor app doesn't log all that data.

Quick Charge, Power Delivery and USB charging for Realme 7 Pro

Hi, I would like to ask about SuperDart 65W (10V, 6.5A) from Realme 7 Pro. It charges every of its two batteries at 5V and 6.5A (32.5W each) but I found information that it suppots Power Delivery and Quick Charge 18W as well. With PD and QC you can charge the battery at 9V , 12V, 15V etc. but not 10V. Does anyone know at what voltage the smartphone will be charged if you use PD or QC charger?
Is it safe to charge it with higher/less voltage? (e.g. 2x4.5V or 2x6V if 5V is needed for one battery)
And what about the standard 5V chargers and usb 3.1 (e.g laptop)? Is it possible to charge 7 Pro with it?
Generally, all fast charges will drop ther voltage when the connected phone doesn't support it.
With lower voltage you wont have any problems other than the speed of charging, which will obviously decrease
Standard 5V chargers will work just fine
Normal laptop usb will work just fine, in fact you will be lucky if the laptop supports any sort of fast charging at all
You are 100% safe to charge with pretty much any charger to my understandment

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