Related
Has anyone tried the below charger with the Mate 9? I thought it should fast charge since it's 5V 3A, but I'm only getting around 2A according to ampere. Trying to figure out if it just doesn't work or if I got a fake one.
USB Type C Car Charger,Tronsmart 33W Dual USB Car Charger with Quick Charge 3.0 Technology.Attached USB C Cord for Nexus 6P, Nexus 5X, LG G5, Pixel C (Benson Leung Approved) https://www.amazon.com/dp/B0146FK3G0/ref=cm_sw_r_cp_apa_9rWSyb3FQ80Y1
It's not going to fast change since it's 5v and not 9v like the OEM charging block.
Thanks. I mistakenly thought if it could fast charge a Pixel or 6p, it would fast charge the Mate 9. It does seem to be charging faster than a standard charger so that's good at least.
No, the Mate 9 uses Huawei proprietary super charging technology and he accessories today don't have it. We have to wait for more devices from Huawei to come out or companies are given the ability to use their tech.
Yeah, I knew it wouldn't be able to get super charging speed, but I thought it would be able to reach fast charging or whatever the middle speed is called.
y2k1ltd said:
It's not going to fast change since it's 5v and not 9v like the OEM charging block.
Click to expand...
Click to collapse
The OEM Supercharge charger is also only 5v. It runs at a higher amperage, not a higher voltage.
Basically, when the charger is unplugged, the adapter runs in 5V mode, which is safe and good. But when the tablet is connected, then it is upgraded to 9V mode. any USB devices connected with a splitter on the charger wire will receive 9V also! This near doubling of voltage could cause devices to be fried, so make sure your Huawei power adapter isn't powering any hubs!!
YouTube demo video coming soon, overvolting a fan!
Good catch!
Thanks for sharing.
I thought charges and/or device ports had a regulator to control input voltage?
CorruptedSanity said:
Good catch!
Thanks for sharing.
I thought charges and/or device ports had a regulator to control input voltage?
Click to expand...
Click to collapse
Most electronics with a USB port will only be rated for say 5v, or maybe 6v to allow for naughty USB power supplies. 9v is nearly double 5v, and on sensitive low-tech chargers, like resistive ones that charge 18650 or whatever, you could expose the battery to a much higher voltage than what it should have, which could cause an explosion or whatever. I used a fan since it should be able to handle the extra voltage quite happily.
What do you mean fan?
Used a fan to cool what?
Michaelflat1 said:
Basically, when the charger is unplugged, the adapter runs in 5V mode, which is safe and good. But when the tablet is connected, then it is upgraded to 9V mode. any USB devices connected with a splitter on the charger wire will receive 9V also! This near doubling of voltage could cause devices to be fried, so make sure your Huawei power adapter isn't powering any hubs!!
YouTube demo video coming soon, overvolting a fan!
Click to expand...
Click to collapse
There is not problem at all. Qualcomm charge technology and USB 3.1 do the same. The charger and the device negotiate what voltage they want to send the same power but less current (more efficient). You are not supposed to o what you did, it your fault and not from Huawei.
pmj_pedro said:
There is not problem at all. Qualcomm charge technology and USB 3.1 do the same. The charger and the device negotiate what voltage they want to send the same power but less current (more efficient). You are not supposed to o what you did, it your fault and not from Huawei.
Click to expand...
Click to collapse
what I was getting at is that if you were to use a splitter, like I did, then be careful, as the voltage might raise. This is not a concern most of the time, but it's good to just be careful.
My OnePlus 5T and it's dash charging only works when these 3 conditions are satisfied:
Dash charger
Stock OnePlus lead
Nothing else plugged in
otherwise it will default down to normal. It's a shame that this didn't happen on the Huawei charger, but hopefully this means that it will be easier for implementation for powerbanks, I can't find any dash charge power banks. And also apparently Huawei phones usually play nice with other chargers. (USB-C power delivery I'm not sure on this device).
Michaelflat1 said:
what I was getting at is that if you were to use a splitter, like I did, then be careful, as the voltage might raise. This is not a concern most of the time, but it's good to just be careful.
My OnePlus 5T and it's dash charging only works when these 3 conditions are satisfied:
Dash charger
Stock OnePlus lead
Nothing else plugged in
otherwise it will default down to normal. It's a shame that this didn't happen on the Huawei charger, but hopefully this means that it will be easier for implementation for powerbanks, I can't find any dash charge power banks. And also apparently Huawei phones usually play nice with other chargers. (USB-C power delivery I'm not sure on this device).
Click to expand...
Click to collapse
I am just annoyed that Huawei do not use QC or USB-PD standards and I must use their charge to charge fast. I do not mind the 9v as my QC devices charges fast on the Huawei charger but not the other way round, forcing me to either change all my chargers or carry an extra charger.
Not sure if you are talking about FCP for in or out of powerbank, I have a Tronsmart powerbank that supports both QC3 and FCP out. It also supports QC in, which means it MAY charge faster with the Huawei's stock charger. I had not tested it that way yet but I think it should as the Huawei charger charges my other QC devices at QC speed.
Tronsmart Presto Power bank:
https://www.tronsmart.com/products/tronsmart-presto-10000mah-quick-charge-3-0-power-bank
Note that their own specifications regarding the input is incorrect, this picture shows the actual specifications behind the device, which shows it can take [email protected] in.
https://the-gadgeteer.com/wp-content/uploads/2017/07/tronsmart-presto-3.jpg
Also refer to my thread from a while back discussing FCP and QC.
https://forum.xda-developers.com/mediapad-m5/help/m5-quick-charge-t3822277
alvinlwh said:
I am just annoyed that Huawei do not use QC or USB-PD standards and I must use their charge to charge fast. I do not mind the 9v as my QC devices charges fast on the Huawei charger but not the other way round, forcing me to either change all my chargers or carry an extra charger.
Not sure if you are talking about FCP for in or out of powerbank, I have a Tronsmart powerbank that supports both QC3 and FCP out. It also supports QC in, which means it MAY charge faster with the Huawei's stock charger. I had not tested it that way yet but I think it should as the Huawei charger charges my other QC devices at QC speed.
Tronsmart Presto Power bank:
https://www.tronsmart.com/products/tronsmart-presto-10000mah-quick-charge-3-0-power-bank
Note that their own specifications regarding the input is incorrect, this picture shows the actual specifications behind the device, which shows it can take [email protected] in.
https://the-gadgeteer.com/wp-content/uploads/2017/07/tronsmart-presto-3.jpg
Also refer to my thread from a while back discussing FCP and QC.
https://forum.xda-developers.com/mediapad-m5/help/m5-quick-charge-t3822277
Click to expand...
Click to collapse
I know your trouble, I have a OP5t, and that charges at 7.5W from my Huawei charger, when it can charge at 20W using dash charger, my mediapad charges at 10W from the dash charger, out of 18w capability. I do look silly carrying round two chargers with the same plug on them!!
Yeah no dash charger power bank, at least there is a Huawei FCP one like you said, I might get that as my next one, but I've got a lovely EC technologies powerbank, and that only does 10W no matter what, shame really as it is 82whr (massive!).
Michaelflat1 said:
I know your trouble, I have a OP5t, and that charges at 7.5W from my Huawei charger, when it can charge at 20W using dash charger, my mediapad charges at 10W from the dash charger, out of 18w capability. I do look silly carrying round two chargers with the same plug on them!!
Yeah no dash charger power bank, at least there is a Huawei FCP one like you said, I might get that as my next one, but I've got a lovely EC technologies powerbank, and that only does 10W no matter what, shame really as it is 82whr (massive!).
Click to expand...
Click to collapse
Luckily (for me at least!), I do not normally carry my M5 around and therefore do not need quick charge on it. Even if taken on holiday, it can charge overnight in the hotel. However this put me off Huawei (and OnePlue, Oppo and any other brands that do not use QC standards) for my future purchase.
Wow, I didn't realize how bad this bites. MediaPad was my first QC3 device. Used it's charger in my bedroom. Then got a LG v35 QC3 phone last week to replace old Nexus 6P (USB C-PD). So excited to see the Huawei charger fast-charging both devices. So irritating to now realize that the LG QC3 charger won't fast charge the M5!
And Huawei is using a proprietary QC3 charging mechanism? ie. are there any compatible chargers on Amazon or only the charger from Huawei will fast charge the M5?
StephenMSmith said:
Wow, I didn't realize how bad this bites. MediaPad was my first QC3 device. Used it's charger in my bedroom. Then got a LG v35 QC3 phone last week to replace old Nexus 6P (USB C-PD). So excited to see the Huawei charger fast-charging both devices. So irritating to now realize that the LG QC3 charger won't fast charge the M5!
And Huawei is using a proprietary QC3 charging mechanism? ie. are there any compatible chargers on Amazon or only the charger from Huawei will fast charge the M5?
Click to expand...
Click to collapse
Sorry, Huawei does not use QC standards but their own FCP/SCP instead. QC chargers will not fast charge Huawei gear but Huawei charger MAY charge QC gear fast.
So if I plug my M5 into a standard QC3.0 charger (9v I think), does it at least charge somewhat faster than a standard, non-QC charger? I would assume so. And are they're any 3rd party fasxt chargers compatible w/Huawei's dumbarse proprietary QC3 charging?
StephenMSmith said:
So if I plug my M5 into a standard QC3.0 charger (9v I think), does it at least charge somewhat faster than a standard, non-QC charger? I would assume so. And are they're any 3rd party fasxt chargers compatible w/Huawei's dumbarse proprietary QC3 charging?
Click to expand...
Click to collapse
No it doesn't, as confirmed by a V/A USB meter. It will only top out at 5V/2A.
I repeat again, Huawei does NOT use QC3 technology, but FCP/SCP technology. If you are looking for a charger that can do both QC and FCP from the same socket, read through the tread again as I had already posted a brand and model that had been tested and confirmed to do both.
Ah, sorry, me dumb and had in my head that M5 was QC3. Now I get it -- FCP, not same as QC3. OK, I see your link and several other chargers compatible w/QC3 and FCP. Thanks!
Hi,
I have a ThinkPad E580 which comes along with a charger Type-C, on the charger has been written : OUTPUT: 20V-3.25A / 15V-3A / 9V-2A / 5V-2A
Is it safe to try charge my MediaPad M5 by this charger?
sz.hatef said:
Hi,
I have a ThinkPad E580 which comes along with a charger Type-C, on the charger has been written : OUTPUT: 20V-3.25A / 15V-3A / 9V-2A / 5V-2A
Is it safe to try charge my MediaPad M5 by this charger?
Click to expand...
Click to collapse
I had used USB PD adaptors on the M5 before and it charges fine, but not quickly.
My Pad (M5 10.8 WiFi) charges via USB PD with 18 Watts using the 9 Volt Profile. What doesn't work is Quick Charge. Power delivery works fine
Is there anything special about the actual Huawei furnished cable? I need a longer one than what was furnished.
reubenray said:
Is there anything special about the actual Huawei furnished cable? I need a longer one than what was furnished.
Click to expand...
Click to collapse
Nothing whatsoever
But get a good one that supports high wattage.
Some cables only transmit 5 watts
Meaning 5v and 1 amp
Technology from 2005
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?
Click to expand...
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:
Click to expand...
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
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
Find many great new & used options and get the best deals for For Xiaomi GaN 65W Travel Charger USB Type-C Smart Output PD Quick Charge at the best online prices at eBay! Free shipping for many products!
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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.
My Poco F2 Pro charges fine (and very fast) with a USB-C to USB-C cable connected to a USB-C fast charger such as a Samsung. But if I try to charge it with a USB-A to USB-C cable connected to any charger, the phone only draws 0.5A ( I have a USB power dongle to check this ) and that's not fast enough to actually keep the phone charged when in use.
Every other phone I've tried will at least draw over an amp, even those which support fast charging.
I've tried multiple chargers, multiple cables, and nothing except C-C with fast charging will actually charge the phone.
Is this normal behaviour for the phone, or do I have a fault with mine. (It was bought second-hand with a warranty, but no charger or cable in the box).
No it's not normal, mine charges at least at QC3 speeds with various compatible chargers, powerbank and cables. Even with Huawei's fast charger, which seems not to be fully compatible, it charges about 2A (measured in accubattery).
It has a strange behavior if it's like that. What about original cable and charger, that's A to C, should charge very fast.
I had another issue regarding charging, whichever charger/cable I was using (let's say max 5V/2A), in accubattery it was measured around 3A, and the charger would overheat like crazy. You know when you want to charge slower, all what they tell you on the web is to use a less powerful charger... and this is what I did, but not with great results though. On my previous phone it was working just fine. On my wife's Mate20Pro it's also working well, but not on F2Pro. Even if the cable was rated 3A and I would connect it to the original charger, it would still draw 5A from it... Only way to solve it was AccA apk so I limit the current that the phone draws and I'm happy.
valy_cta said:
It has a strange behavior if it's like that. What about original cable and charger, that's A to C, should charge very fast.
I had another issue regarding charging, whichever charger/cable I was using (let's say max 5V/2A), in accubattery it was measured around 3A, and the charger would overheat like crazy. You know when you want to charge slower, all what they tell you on the web is to use a less powerful charger... and this is what I did, but not with great results though. On my previous phone it was working just fine. On my wife's Mate20Pro it's also working well, but not on F2Pro. Even if the cable was rated 3A and I would connect it to the original charger, it would still draw 5A from it... Only way to solve it was AccA apk so I limit the current that the phone draws and I'm happy.
Click to expand...
Click to collapse
Unfortunately I don't have the original charger and cable as it was a used phone which is otherwise in perfect working order. I've had no problems with c-c fast chargers, but nothring else works.
bilkusg said:
Unfortunately I don't have the original charger and cable as it was a used phone which is otherwise in perfect working order. I've had no problems with c-c fast chargers, but nothring else works.
Click to expand...
Click to collapse
What ROM is on the phone right now? May I suggest going completely stock with MiFlash to rule out the software part?
bilkusg said:
My Poco F2 Pro charges fine (and very fast) with a USB-C to USB-C cable connected to a USB-C fast charger such as a Samsung. But if I try to charge it with a USB-A to USB-C cable connected to any charger, the phone only draws 0.5A ( I have a USB power dongle to check this ) and that's not fast enough to actually keep the phone charged when in use.
Every other phone I've tried will at least draw over an amp, even those which support fast charging.
I've tried multiple chargers, multiple cables, and nothing except C-C with fast charging will actually charge the phone.
Is this normal behaviour for the phone, or do I have a fault with mine. (It was bought second-hand with a warranty, but no charger or cable in the box).
Click to expand...
Click to collapse
Just search and buy original charger if u want full charging speed, one guy made a great test of different chargers and different cables on this phone, check this here https://forum.xda-developers.com/t/poco-f2-pro-charging-study-how-fast-does-it-charge.4189013/
There's something wrong with his device.
0.5 A is too low for any charger.