Fast Charging support - Xiaomi Redmi Note 7 Pro Questions & Answers

Can anyone help in understanding why fast charging on violet(Redmi Note 7 Pro) can go only as high as 13W on a fast charger?...I'm using the 27W sonic charger from MI and I have havoc os installed as my custom ROM, I've also flashed Ryzen Kernel( as I saw that it was the only Kernel that enabled 3A fast charging), but the voltage never goes any higher than 4.4V!, I've never been able to even get close to 18W!!, is it a USB C o/p power delivery limit or can we actually enable fast charging with higher voltages?

Is there someone tested 100w super fast charger? If our phone can supports i'll going buy.

3pka said:
Is there someone tested 100w super fast charger? If our phone can supports i'll going buy.
Click to expand...
Click to collapse
No, it doesn't support 100w fast charging. It only supports up to quick charge 4. Most USB C cables can't even carry 100watts.
---------- Post added at 08:07 PM ---------- Previous post was at 08:04 PM ----------
Tejas said:
Can anyone help in understanding why fast charging on violet(Redmi Note 7 Pro) can go only as high as 13W on a fast charger?...I'm using the 27W sonic charger from MI and I have havoc os installed as my custom ROM, I've also flashed Ryzen Kernel( as I saw that it was the only Kernel that enabled 3A fast charging), but the voltage never goes any higher than 4.4V!, I've never been able to even get close to 18W!!, is it a USB C o/p power delivery limit or can we actually enable fast charging with higher voltages?
Click to expand...
Click to collapse
It's supposed to support 27watt charging as far as I know. Never seen any difference between a 18 watt and 27 watt charger. There must be something else making it impossible. Maybe a battery limitation?

TheDuckTeam said:
No, it doesn't support 100w fast charging. It only supports up to quick charge 4. Most USB C cables can't even carry 100watts.
---------- Post added at 08:07 PM ---------- Previous post was at 08:04 PM ----------
It's supposed to support 27watt charging as far as I know. Never seen any difference between a 18 watt and 27 watt charger. There must be something else making it impossible. Maybe a battery limitation?
Click to expand...
Click to collapse
If you use havoc os or any custom rom with battery status enabled, it shows you the current and voltage rating at which it is being charged, and if you multiply then you get the wattage at which your phone charges, I get 4.4V/3A while charging which amounts to 4.4 × 3 = 13.2W which is miles away from 18W/27W, I want to know why?

TheDuckTeam said:
No, it doesn't support 100w fast charging. It only supports up to quick charge 4. Most USB C cables can't even carry 100watts.
---------- Post added at 08:07 PM ---------- Previous post was at 08:04 PM ----------
It's supposed to support 27watt charging as far as I know. Never seen any difference between a 18 watt and 27 watt charger. There must be something else making it impossible. Maybe a battery limitation?
Click to expand...
Click to collapse
In 1st picture i was charging PD. 2nd tolding can charge up with 30v. Then i was thinked about 20v 5A maybe possible. See that pictures 8 min 17% charged with ACC module.

3pka said:
In 1st picture i was charging PD. 2nd tolding can charge up with 30v. Then i was thinked about 20v 5A maybe possible. See that pictures 8 min 17% charged with ACC module.
Click to expand...
Click to collapse
a single cell battery on a phone can't charge at 30v. The way most quick charging works is either by increasing the voltage of the battery, adding another cell, or more amps.
Also, some electricity is converted into heat instead of a useable charge. I don't see how the phone could even achieve 18watts (9v 2amps) since the battery isn't even a 9v battery.

With Tesla's "Inventions" we would have all devices fully charged "everywhere", everytime.
[emoji55]
Redmi Note 7 Pro | Tapatalk

Related

Quick Charge 3.0 USB charger for Mi Max 3GB/32GB version

Did you happen to know for Quick Charge 3.0 USB phone charger for Mi Max phone, I was looking for one in eBay and not sure which one will be suitable with Mi Max, if someone is using Quick Charge 3.0 charge, please let me know for it, thanks.
tinkko said:
Did you happen to know for Quick Charge 3.0 USB phone charger for Mi Max phone, I was looking for one in eBay and not sure which one will be suitable with Mi Max, if someone is using Quick Charge 3.0 charge, please let me know for it, thanks.
Click to expand...
Click to collapse
Download the supporting charger list from Qualcomm site.
I use the 18w anker qc 3.0 charger from Amazon, along with a 3m nylon anker USB cable, my Max Prime 128gig charges 0-100 in just over 120mins, The anker plug is 9.99gbp and the cable is 6.99gbp
Sent from my MI MAX using Tapatalk
tinkko said:
Did you happen to know for Quick Charge 3.0 USB phone charger for Mi Max phone, I was looking for one in eBay and not sure which one will be suitable with Mi Max, if someone is using Quick Charge 3.0 charge, please let me know for it, thanks.
Click to expand...
Click to collapse
Check this
qualcomm.com/documents/quick-charge-device-list
kyler084 said:
I use the 18w anker qc 3.0 charger from Amazon, along with a 3m nylon anker USB cable, my Max Prime 128gig charges 0-100 in just over 120mins, The anker plug is 9.99gbp and the cable is 6.99gbp
Click to expand...
Click to collapse
I think your charger is more slow than the European stock
---------- Post added at 01:49 AM ---------- Previous post was at 01:48 AM ----------
Preshak said:
Download the supporting charger list from Qualcomm site.
Click to expand...
Click to collapse
I was thinking to buy a tronsmart QC 3.0 quick charger. Maybe u should too
but does 3/32 version support QC?
bonya1423 said:
but does 3/32 version support QC?
Click to expand...
Click to collapse
Yes this version supports 3.0 quick charging
Is there any official QC 3 charger for Mi Max available in india ? or something from other mainstream phone manufacturers that could be used with Mi Max ?
I am using my old Galaxy Note 4 charging brick with the Mi Max cable included in the box and charging speed is great on both official MIUI ROM or Validus ROM, 2360 mAh
I've been using an Aukrey Qualcomm 3.0 Quick Charger with my mi max; charges it up from 2℅ to 100℅ within 25-30 minutes, which is quite impressive regarding the fact that it bears one of the largest batteries(4850mAh) in the smartphone market.
So, you should opt for this particular one........i guess?
I got Tronsmart and its working great, and it was listed in Qualcomm pdf.
I read about that quick charge 2.0 charges as fast as quick charge 3.0 , the difference is that QC 3.0 allows wider selection of voltages , so the main difference is not speed but compatibility . Does someone using QC 2.0 and what times do you get from 1-2% to 100% ? In my town there is only QC 2.0 on store and i dont want to order online and wait weeks
firkosa said:
I read about that quick charge 2.0 charges as fast as quick charge 3.0 , the difference is that QC 3.0 allows wider selection of voltages , so the main difference is not speed but compatibility . Does someone using QC 2.0 and what times do you get from 1-2% to 100% ? In my town there is only QC 2.0 on store and i dont want to order online and wait weeks
Click to expand...
Click to collapse
I guess not much a difference, I am using Quick Charge 1.0 (Galaxy Note 4 charging brick) and the charging speed is decent. So I guess the difference will be very few minutes that is negligible in real life IMO
https://forum.xda-developers.com/showpost.php?p=70521049&postcount=9
I ordered Anker wall charger 3.0 and 2.0
I'll try it and see what will give me with Ampere app
Yaz S.H. said:
I've been using an Aukrey Qualcomm 3.0 Quick Charger with my mi max; charges it up from 2℅ to 100℅ within 25-30 minutes, which is quite impressive regarding the fact that it bears one of the largest batteries(4850mAh) in the smartphone market.
So, you should opt for this particular one........i guess
Click to expand...
Click to collapse
are u sure??within 30minute??
StonebridgeGr said:
I was thinking to buy a tronsmart QC 3.0 quick charger. Maybe u should too
Click to expand...
Click to collapse
+1, Using tronsmart QC 3.0 on hydrogen and helium and it works perfectly.
With Tronsmart QC 3.0 : from %30 to %100 in 2hrs and 9min
not like the original charger +heating up+
For me. With the tronsmart w1ct I get 90% with 2 hours charging.. so it's slow
Yaz S.H. said:
I've been using an Aukrey Qualcomm 3.0 Quick Charger with my mi max; charges it up from 2℅ to 100℅ within 25-30 minutes, which is quite impressive regarding the fact that it bears one of the largest batteries(4850mAh) in the smartphone market.
So, you should opt for this particular one........i guess
Click to expand...
Click to collapse
i dont think that there is a charger out there that can charge Mi Max from 2% to 100% in 25-30 mins ..
---------- Post added at 11:37 PM ---------- Previous post was at 11:36 PM ----------
Sir Mohd said:
With Tronsmart QC 3.0 : from %30 to %100 in 2hrs and 9min
not like the original charger +heating up+
Click to expand...
Click to collapse
for me, with tronsmart wc1t from 2 % to 100% 2 hours and 10 mins :/
My Tronsmart W3PTA charges Mi Max battery from 5% to 50% for 30 minutes

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 Redmi 3s can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
Charging speed isn't that great. But its okay considering that this phone sports a large 4100 mAh battery.
5/10. Battery capacity is large and there's no fast charging, so it sucks.
I dont know why but even though lot of people of complained that it takes a lot of time , Mine charges from 10% to 95% in under 2 hours which is great
Most people that complain have bad cable. For what I see, Xiaomi uses some bad cables in India. My phone was bought from China and it charges with 1800mAh, which is great since charger is 2000mA and system consumes a little.
Use Ampere app and measure the rate of charge. If it is under 1000mAh you have something wrong with charger/cable.
Fast charging should have been enabled
Average
Fast charge (2A) is present. Charge rate up to 1800mAh, what is good.
Better if quick charge (QC) was enabled.
My charge rate up to 1650 mAh.
mine upto 1960 mAh
Qualcomm Quick Charge 3.0 IS supported.
After connecting the phone to Samsung's "Adaptive Fast Charge" charger results in average 9V and 1.5A charging after negotiation which takes around 5 seconds.
it is ok, I get up to 1800 mAh
gustavolang said:
Fast charge (2A) is present. Charge rate up to 1800mAh, what is good.
Better if quick charge (QC) was enabled.
Click to expand...
Click to collapse
It supports QC 3.0 but to enable it, you'll have to flash a suitable custom kernel. In my opinion, stick with the default fast charging system because putting too much stress on your phone's CPU can cause overheating issues and no doubt shorten your phone's battery life.
Slow charging problem solving
impulsar said:
5/10. Battery capacity is large and there's no fast charging, so it sucks.
Click to expand...
Click to collapse
Use Mi 9v 2A charger problem solving
Don't pass 3amp ur land will fry. I did and mine battery fu*** up. Use qc2.0 not 3.0 qc2.0 recommended.
impulsar said:
5/10. Battery capacity is large and there's no fast charging, so it sucks.
Click to expand...
Click to collapse
it supports quick charge 2.0 use a quick charge supported charger to get the result and make sure the rom you are using support quick charge too
---------- Post added at 07:47 PM ---------- Previous post was at 07:44 PM ----------
Sushantdk10 said:
Don't pass 3amp ur land will fry. I did and mine battery fu*** up. Use qc2.0 not 3.0 qc2.0 recommended.
Click to expand...
Click to collapse
I use a quick charger 3 (adaptive) it communicates to the device and changes the amp and voltage according to the device so it doesn't fry the mobile
T6
which rom support QC2.0

Which battery pack do OnePlus users use?

I was about to buy a OnePlus6 and then I realised they use a different charging system to qualcomm so my battery pack is unlikely to work properly.
I play a mobile game quite a lot (Pokemon Go) so being able to charge my phone on the go is essential, any suggestions? Thanks in advance. :good:
any battery pack with PD is compatible with OP6
i use Cygnett TYPE-C 20,000 MAH battery pack for my 5T and use PD and it outputs 45w
Tronsmart 20000mAh QC 3.0 Portable Charger with 6A Output,USB Type C External Battery for Samsung Galaxy S8 S8+/Nexus 6p/ Huawei Mate 9/Pixel 2/2 XL
That's one of the two I have. Works great, has to USB ports. The green port charges pretty fast. Search that and you'll find it.
Thanks guys.
Edit: The Tronsmart isn't for sale anymore sadly and the Cygnett is about 4x the price of other battery packs.
virtyx said:
any battery pack with PD is compatible with OP6
i use Cygnett TYPE-C 20,000 MAH battery pack for my 5T and use PD and it outputs 45w
Click to expand...
Click to collapse
Oneplusb6 dont support PD. None of oneplus phones support it.
---------- Post added at 07:00 PM ---------- Previous post was at 06:57 PM ----------
But for OP, you can use almost any powerbank. Only the output speed is difference. There isnt any powerbank which support dash charge so you wont get "fast charge" speeds. But you can get regular 2.4A speed. So no fast charge but yes regular charge.
zige said:
Oneplusb6 dont support PD. None of oneplus phones support it.
---------- Post added at 07:00 PM ---------- Previous post was at 06:57 PM ----------
But for OP, you can use almost any powerbank. Only the output speed is difference. There isnt any powerbank which support dash charge so you wont get "fast charge" speeds. But you can get regular 2.4A speed. So no fast charge but yes regular charge.
Click to expand...
Click to collapse
Blimey, that's no good. I'll have to leave it connected constantly!
Ah well, it is what it is. Thanks for the reply.
zige said:
Oneplusb6 dont support PD. None of oneplus phones support it.
---------- Post added at 07:00 PM ---------- Previous post was at 06:57 PM ----------
But for OP, you can use almost any powerbank. Only the output speed is difference. There isnt any powerbank which support dash charge so you wont get "fast charge" speeds. But you can get regular 2.4A speed. So no fast charge but yes regular charge.
Click to expand...
Click to collapse
oh didnt know
but it can still pull 3A from it
I'm using the same that I used with my Xperia Z3 and with my Oneplus 3 too... Anker Powercore 20100mAh
I have bought this Dash Charge powerbank back when I had my oneplus 3t and it works fine one my oneplus 6 too !
Link: https://www.amazon.com/Sdoutech-10000-Portable-Charge-Oneplus/dp/B078K8TZQ1
This powerbank supports Oppo's VOOC charging which is basically the same as DashCharge and I am happy with it!
Downsides: you can't Dash charge the powerbank and you need to use the original OnePlus red charging cable to get Dash Charge working.
For users that can get that item shipped to their country like me (Germany) I contacted the seller by email and he shipped me one by Paypal Invoice; his email is [email protected] .

[MOD][ROOT][TEST] Increase charging current

I've modified a system file to have a faster charging (3100 mA i've set, like the quickcharge of lg g5), original max current is 2300 mA
For now it work only with screen off in future i try to have this with screen on.
Download attachments
extract it
Replace "thermal-engine-845.conf" located in /system/vendor/etc
Reboot
Device may be more hot than usually because it charge more fast but check if became too hot unplug for a while or restore original file in attachment (high temp and fast charging reduce battery life!)
Now i cant test it because my phone is at service for a mic problem but tell me if it work!
I whold strogly advice agqinst this mod as the creator dont even know the difference between mah and mA
---------- Post added at 07:44 PM ---------- Previous post was at 07:42 PM ----------
And at what Voltage?
If u alow. 3.1A at 11 volts fast charge u might start a little fire.. Most cabls cant handle that and would melt
maydayind said:
I whold strogly advice agqinst this mod as the creator dont even know the difference between mah and mA
---------- Post added at 07:44 PM ---------- Previous post was at 07:42 PM ----------
And at what Voltage?
If u alow. 3.1A at 11 volts fast charge u might start a little fire.. Most cabls cant handle that and would melt
Click to expand...
Click to collapse
The stock charger can't do 3A 11 volts so no worries there.
Also on custom roms I was able to get 1.8A 12Volts witch it actually pretty good
Yes but the kernel meshure the resistans in the cable (ohm)
And adopts it current. If u screw with thiis settings and running to high amp on high Ohms the resistans will cause heat....
Thats wye old cable charge bad. Its a security feature to avoid heat by resistance.
Man u shuld realy read upp on this befor postning this
maydayind said:
I whold strogly advice agqinst this mod as the creator dont even know the difference between mah and mA
---------- Post added at 07:44 PM ---------- Previous post was at 07:42 PM ----------
And at what Voltage?
If u alow. 3.1A at 11 volts fast charge u might start a little fire.. Most cabls cant handle that and would melt
Click to expand...
Click to collapse
Yea mA, sorry for my error i go to correct
3.1Amps at the battery, doesen't matter voltage trought the cable
It can be 5V 3.1 amps, if cable is good with a low resistance measured by the phone , 9V at 1.7 amps, 12V at 1.3amps with a old cable and not so good cable, so max power is always less than max 18 watts (but better than stock ~ 10W)
maydayind said:
Yes but the kernel meshure the resistans in the cable (ohm)
And adopts it current. If u screw with thiis settings and running to high amp on high Ohms the resistans will cause heat....
Thats wye old cable charge bad. Its a security feature to avoid heat by resistance.
Man u shuld realy read upp on this befor postning this
Click to expand...
Click to collapse
I use original values of the lg g5 of the quickcharge so i don't think is so dangerous, i don't touch negotiazion of voltage, only the current to the battery, if a cable is old/bad the voltage rise up to 12 volts to avoid heat of the cable, (but probably more heat to the phone due to conversion) Max power still under 18 Watts
I CAN'T SEEM TO FIND THERMAL-ENGINE-845 . I'VE GOT THERMAL-ENGINE.CONFIG (WHICH IS EMPTY) AND THERMAL-ENGINE-NORMAL.CONFIG WHICH DOESN'T HAVE CODE THAT YOU ARE PROVIDING. SORRY I'M NOOB. I'VE GOT XIAOMI REDMI NOTE 7(LAVENDER). HERE IS THE ONLY BATTERY CODE I'VE FOUND IN THERMAL-ENGINE-NORMAL.CONFIG.
[BATTERY_CHARGING_CTL]
algo_type monitor
sampling 10000
sensor quiet_therm
thresholds 37000 38000 41000 42000 43000
thresholds_clr 36000 37000 39000 40000 41000
actions battery battery battery battery battery
action_info 1 2 4 5 6
Thanks
thanks for uploading this setting, it works perfectly on my lg g7. by any chance you don't have a configuration for the thermal throttling of the cpu?
Not Work Android 10
This is not working on Android 10. I already tried it.
Just so everyone is clear, amperage is pulled by a device, not driven by the charger. That means if you tell your device to pull more amps than the charger or wires are rated for, the charger or wires may heat up and can cause a fire, or at least can cause the charger to burn out one of its components. I'm not saying that will happen, but that it can, and you should be careful when trying anything like this. Electricity is awesome, but it can be really dangerous if not treated carefully.
s20fe5g fast charge ? thermal engine not work

Not charging at 50w

I wonder why I am not getting the promised charging speed of 50w?
With the screen off I am getting 26.99w at most.
With the screen on I am getting around 12w.
I charged my fone at around 35%. I have a hunch the 50w will only kick in from 0% up to a certain percentage.
Anybody here observed similar results?
50 w is just for the beginning, when your battery is almost 0%.
The charger is not 50W flat. The charging power will change depending on the battery charge.
josuema said:
50 w is just for the beginning, when your battery is almost 0%.
The charger is not 50W flat. The charging power will change depending on the battery charge.
Click to expand...
Click to collapse
That is what I was thinking as well. Will do a test at 0% to confirm.
Tested again charging from 4%. Still sitting at 25watts. But i was able to get a full charge in 53 minutes.
Mi 10 pro is 50
Mi 10 non pro is 30
?
badaas said:
Mi 10 pro is 50
Mi 10 non pro is 30
?
Click to expand...
Click to collapse
I know. Mine is Mi10 Pro and i'm getting only 25w max.
Machine_Head said:
But i was able to get a full charge in 53 minutes.
I know. Mine is Mi10 Pro and i'm getting only 25w max.
Click to expand...
Click to collapse
And? this is an issue? 53 minutes a full charge, and your still claiming on numbers?
Who the hell care about a 25w charge if you doesnt need longer than 53minutes? Where the hell is the issue?
Flash-User said:
And? this is an issue? 53 minutes a full charge, and your still claiming on numbers?
Who the hell care about a 25w charge if you doesnt need longer than 53minutes? Where the hell is the issue?
Click to expand...
Click to collapse
I understand your point
but if someone came from 30W charge phone to 50W charge phone
he will expect it to be faster at least, not slower
25W is very good but it is not 50W
I think he is asking to see is it SW bug or HW problem or just a big lie from Xiaomi about how much we should get in real world
---------- Post added at 12:52 AM ---------- Previous post was at 12:48 AM ----------
Machine_Head said:
Tested again charging from 4%. Still sitting at 25watts. But i was able to get a full charge in 53 minutes.
Click to expand...
Click to collapse
is the charger 50W or only 30
because from my understanding the global charger is only 30W
also, can you test without USB tester and use the app ampere
abogrhen said:
I understand your point
but if someone came from 30W charge phone to 50W charge phone
he will expect it to be faster at least, not slower
25W is very good but it is not 50W
I think he is asking to see is it SW bug or HW problem or just a big lie from Xiaomi about how much we should get in real world
---------- Post added at 12:52 AM ---------- Previous post was at 12:48 AM ----------
is the charger 50W or only 30
because from my understanding the global charger is only 30W
also, can you test without USB tester and use the app ampere
Click to expand...
Click to collapse
Okay, i had both phones, a OP 8pro (30w charge) and my new Xiaomi 10Pro and compared charging speeds and the Mi10 Pro is much more faster than the OP8 pro, it felt it takes hours until the op8 pro reaches 100%. i dont care about measurements, ampere showed me a peak of ~9500ma at peak on the mi10 pro, no idea about the OP8pro on ampere. My Mi10 pro had a 60w charger but i dont have an usb tester anymore, if the phone got a 100% charge under a hour then everything should fine, isnt?
Maybe your USB tester isn't capable to detect the right power of the charger, as i know these usb testers are only able to count voltages from quick charge (1,2,3...)?? But i can wrong here...
Flash-User said:
Okay, i had both phones, a OP 8pro (30w charge) and my new Xiaomi 10Pro and compared charging speeds and the Mi10 Pro is much more faster than the OP8 pro, it felt it takes hours until the op8 pro reaches 100%. i dont care about measurements, ampere showed me a peak of ~9500ma at peak on the mi10 pro, no idea about the OP8pro on ampere. My Mi10 pro had a 60w charger but i dont have an usb tester anymore, if the phone got a 100% charge under a hour then everything should fine, isnt?
Maybe your USB tester isn't capable to detect the right power of the charger, as i know these usb testers are only able to count voltages from quick charge (1,2,3...)?? But i can wrong here...
Click to expand...
Click to collapse
Comparing the two phones, which one do you prefer and why?
Sorry for OT
Sent from my SM-G985F using XDA Labs
tobias14 said:
Comparing the two phones, which one do you prefer and why?
Sorry for OT
Sent from my SM-G985F using XDA Labs
Click to expand...
Click to collapse
he he, thats a funny thing, trust me ...
i bought the oneplus8 pro at relaese day as popup edition (cases and headphones included) 999€ and i used it for a bit more than one month BUT i never was satisfied at all, i mean there was a lot of camera improvements over time but i couldn't understand the hype about the display and when it comes to battery life i was a bit disappointed. (My former phone was a Huawei P30 pro) I had the feeling the battery was draining faster than normal and as i said, i never felt completely happy with the phone. So last weekend i surfed in the web and found a shop in the city next to me that sold the Xiaomi Mi10 pro so i decided to take a look on the phone. And trust me, i saw the phone in the store, played around a bit and i knew immediately thats the right one. I compared both phones a lot and until today i doesn't regret the decision. The Phone is Top notch in battery, display, performance i miss nothing from the opo8pro and i'm lucky that i sold the phone. All i kept from the oneplus was the WirelessZ Bullets.
abogrhen said:
I think he is asking to see is it SW bug or HW problem or just a big lie from Xiaomi about how much we should get in real world
Click to expand...
Click to collapse
My point exactly. Notice i never complained about the charging speed. My issue is Xiaomi advertising this to have 50w charging but we consumers are only getting 25w tops. I am trying to figure out why. Will try to charge with the ampere app.
Machine_Head said:
My point exactly. Notice i never complained about the charging speed. My issue is Xiaomi advertising this to have 50w charging but we consumers are only getting 25w tops. I am trying to figure out why. Will try to charge with the ampere app.
Click to expand...
Click to collapse
mine charges with like 50w (45-50w) until about 40% and after that it slows down gradually, which is the expected behavior.
this phone changed the way I use my phone completely! I always charged my devices overnight to 100. but now considering how little it takes to charge this phone I just don't think about charging every time it gets to like 10 I plug it in to 80%.
1% to 80% took 33min, 3502mAh
4% to 80% took 29min, 3227mAh
B!GBOY said:
mine charges with like 50w (45-50w) until about 40% and after that it slows down gradually, which is the expected behavior.
this phone changed the way I use my phone completely! I always charged my devices overnight to 100. but now considering how little it takes to charge this phone I just don't think about charging every time it gets to like 10 I plug it in to 80%.
1% to 80% took 33min, 3502mAh
4% to 80% took 29min, 3227mAh
Click to expand...
Click to collapse
Did you use a tester to conclude you are getting 45-50w below 40%? If so, may I see it? I am suspecting the low reading could be due to my tester.
True, the charging speed changes the way I use my phone.
Machine_Head said:
Did you use a tester to conclude you are getting 45-50w below 40%? If so, may I see it? I am suspecting the low reading could be due to my tester.
True, the charging speed changes the way I use my phone.
Click to expand...
Click to collapse
yup I have some cheapo china testers
the better one (usb c) shows about 45w when charging
the second one (usb a) only allows quick charge 18w because the 65w xiaomi charger uses a half assed usb 3 port (one pin more than usb 2) and
therefore only works if the (usb a) tester also has usb 3 pins. For the same reason if you use a normal usb 2 (usb a to c) cable you won't get 50w
i also tested it again. it charges up to 33% with ~45w and then goes down to ~30w I checked again at arrount 65% it was charging with ~25w. At least these are the values that my tester shows
other values (charge % , time, mAh) in my previous post were readings from the phone itself.
B!GBOY said:
yup I have some cheapo china testers
the better one (usb c) shows about 45w when charging
the second one (usb a) only allows quick charge 18w because the 65w xiaomi charger uses a half assed usb 3 port (one pin more than usb 2) and
therefore only works if the (usb a) tester also has usb 3 pins. For the same reason if you use a normal usb 2 (usb a to c) cable you won't get 50w
i also tested it again. it charges up to 33% with ~45w and then goes down to ~30w I checked again at arrount 65% it was charging with ~25w. At least these are the values that my tester shows
other values (charge % , time, mAh) in my previous post were readings from the phone itself.
Click to expand...
Click to collapse
My usb tester is exactly the first photo. Since I got my unit used, it might not have the original cable.
Would you be kind enough to check if on the USB A side, where the cable attaches to plug, does it day 3A?
Also, at what amps does it say when the charged is doing 45w?
Thank you
Machine_Head said:
My usb tester is exactly the first photo. Since I got my unit used, it might not have the original cable.
Would you be kind enough to check if on the USB A side, where the cable attaches to plug, does it day 3A?
Also, at what amps does it say when the charged is doing 45w?
Thank you
Click to expand...
Click to collapse
You can see the extra pin by looking down the port
I marked them in the attachments. Basically it's one of the 5 extra pins that usb 3 uses.
Sorry I have to check again later for the exact amperage, just charged my device. This time i checked the percentage and it charged to 41% with 45w. The deciding logic is probably more complicated than just a percentage.
Edit: added a photo with the exact charge info
the reason u r not getting 50w is bcos u put a meter between the charger and the cable... in order for xiaomi to draw out 50w from usba they put in a small microchip inside the cable to trigger the 50w quick change. if u look into the usb cable u will see extra pin in the middle of the cable, this pin work with the microchip to trigger the 50w quick charge.
solution:
1. always use original cable come with the mi10pro phone.
2. dont plug anything between the cable and charger.
3. if u want to test charging speed with meter, use type-c to type-c meter.
FYi, xiaomi 50w is using 10v 5a.
The phone heats up to 43 degrees during fast charging.

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