Cell Standby Battery Drain - ONE Q&A, Help & Troubleshooting

Hello,
My phone is stuck at 12% charge while plugged into the USB charger. The needle doesn't move up. I have the latest android update 5.1.1 and Cyanogen 12.1-YOG4PAS1N0. What can I do?

salilsurendran said:
Hello,
My phone is stuck at 12% charge while plugged into the USB charger. The needle doesn't move up. I have the latest android update 5.1.1 and Cyanogen 12.1-YOG4PAS1N0. What can I do?
Click to expand...
Click to collapse
Probably, a bad cable or charger
Download Ampere from play store and check the input current (normally should be above 1000 ma )
---------- Post added at 07:01 PM ---------- Previous post was at 06:56 PM ----------
salilsurendran said:
Hello,
My phone is stuck at 12% charge while plugged into the USB charger. The needle doesn't move up. I have the latest android update 5.1.1 and Cyanogen 12.1-YOG4PAS1N0. What can I do?
Click to expand...
Click to collapse
Probably, a bad cable or charger
Download Ampere from play store and check the input current (normally should be above 1000 ma )

I used Ampere and when I am charging connected via USB to an Apple Monitor it should a max of 480mA and min of 140 mA, hovering around 300 mA most of the time.

salilsurendran said:
I used Ampere and when I am charging connected via USB to an Apple Monitor it should a max of 480mA and min of 140 mA, hovering around 300 mA most of the time.
Click to expand...
Click to collapse
its ur cable and/or monitor
i have a couple cables that do about 190 to 340 then i have thicker cables that do 900 - 1100, i'd try a diff cable or stock cable.
also too, the apple monitor may not have enough power to get to the 1000's, i know i use my laptop and only get a bout 240 - 300 but when i use an AC charge 2a and it is a lot higher.

Related

battery charging mA

hey guys i am having two chargers, one the stock one and another from htc hd2
when ever i charge my battery with stock charger., it takes 3 hours to get 100 pc and mA seen with my battery monitor widget is 570 mA
but if i use htc charger it charges in 1.45 hours and mA varies in 600 to 1200
should i use htc charger??
will it harm my phone or battery??
please reply fast
hemanbond said:
hey guys i am having two chargers, one the stock one and another from htc hd2
when ever i charge my battery with stock charger., it takes 3 hours to get 100 pc and mA seen with my battery monitor widget is 570 mA
but if i use htc charger it charges in 1.45 hours and mA varies in 600 to 1200
should i use htc charger??
will it harm my phone or battery??
please reply fast
Click to expand...
Click to collapse
Probably not the best idea to bark orders like, "please reply fast", especially at this particular time in this forum.
Your mA should be somewhere in the neighborhood of 4350mA fully charged. What you've stated above doesn't make sense.
Sent from my Atari Falcon030
What you are seeing is the difference between a low amperage charger and higher amperage charge (or watts if you prefer)
The so called "rapid chargers" will push a higher milliAmp to charge devices quicker
i.e. the difference between an iPhone charger and an iPad charger iPhone = 5volts 1amp, iPad = 5volts 2+amp (technically is 2watts, but i'm not in the mood to convert to amps)
Now whether or not it may damage your phone I can not answer, however I have been using a 2watt iPad charger on my phone for quite some time with no ill effects... just charges a we bit quicker.
mA is per second ...have u ever seen battery monitor widget??
should i use htc charger or not?
I don't have to see battery monitor widget.
mA or milliamp or even milliampere is a measurement of electrical current through any given conductor (the amount of power something can push or pull at any given time)
Batteries are rated in milliamphour or mAh, which is the amount of current a battery can store and release in any given hour.
The HTC charger shouldn't cause any problems because the battery charging controller should be built into the phone and the batteries are protected to hinder overcharge or over-discharge.
However, I will not state that it cannot cause any issues because I'm not a Moto engineer, so I don't know for sure what the hardware can withstand.
But, as I said earlier, I charge my phone on an iPad charger consistantly, and have not had any ill effects as of yet, and I can almost guarantee that the iPad charger pushes more current than your HTC charger.
---------- Post added at 03:25 PM ---------- Previous post was at 03:18 PM ----------
Which Battery Monitor Widget are you using? Made by 3c? or fsinib?
I'll check what my phone states while charging on the iPad charger.
nephillim said:
I don't have to see battery monitor widget.
mA or milliamp or even milliampere is a measurement of electrical current through any given conductor (the amount of power something can push or pull at any given time)
Batteries are rated in milliamphour or mAh, which is the amount of current a battery can store and release in any given hour.
The HTC charger shouldn't cause any problems because the battery charging controller should be built into the phone and the batteries are protected to hinder overcharge or over-discharge.
However, I will not state that it cannot cause any issues because I'm not a Moto engineer, so I don't know for sure what the hardware can withstand.
But, as I said earlier, I charge my phone on an iPad charger consistantly, and have not had any ill effects as of yet, and I can almost guarantee that the iPad charger pushes more current than your HTC charger.
---------- Post added at 03:25 PM ---------- Previous post was at 03:18 PM ----------
Which Battery Monitor Widget are you using? Made by 3c? or fsinib?
I'll check what my phone states while charging on the iPad charger.
Click to expand...
Click to collapse
it is battery monitor widget pro which has features like history update rate and history size
i dont know much about maker though.
but ur post was very helpflu
thankyou sir
Always glad and willing to help. I'll check out the Pro version and let you know what I find.
---------- Post added at 04:21 PM ---------- Previous post was at 03:40 PM ----------
I've got the app installed, have to wait for a full charge cycle before it will start returning proper current... I'll let you know what I find A.S.A.P.
I've been using the 2 Amp HP Touchpad charger for almost 6 months without any ill effects.
Hey i was just curious whether more electricity flowing through my phone would damage it but as you all guys said it wont as the battery has some anti overcharging system and you guys have been using other then stock chargers ...then im also using ...thanx to all
Motorola has a Travel Charger that apparently supplies 8watts which converted at a fixed 5volts is 1.6Amps or 1600mA
Motorola states that it is compatible with our phone...... I think we'll all be just fine with whatever charger you want to use!
http://www.motorola.com/us/consumers/P833-Travel-Charger-For-Tablets-and-Phones/102614,en_US,pd.html
some info
hemanbond said:
hey guys i am having two chargers, one the stock one and another from htc hd2
when ever i charge my battery with stock charger., it takes 3 hours to get 100 pc and mA seen with my battery monitor widget is 570 mA
but if i use htc charger it charges in 1.45 hours and mA varies in 600 to 1200
should i use htc charger??
will it harm my phone or battery??
please reply fast
Click to expand...
Click to collapse
i've been using battery monitor widget & system tuner (both free) for nearly 1.5 month
the current u r seeing "570mA" with stock charger is ur charging current +/- ur consumption current
another charging current "600-1200" is from htc charger
our stock charger has max o/p capacity of 850mA @ 5.1V .... similarly u can check htc's o/p capacity (i guess it is 1.2A @ 5V)
observe your consumption while heavy/moderate usage & standby it will vary
it is simply average current consumed in 10 min. timespan (pretty sure we can't change it)
m plannin to buy both after stable ICS release
tc njoy :highfive:

S8 Plus Charging Rate

Has anybody measured the charging rate of the S8 Plus? More specifically has anybody checked to see how many amps they're charging at?
I'm using the app called Ampere and I'm only seeing a max of 1 amp regardless of what battery percent I start charging at.
This seems really bad considering this is suppose to be fast charging. On the pixel I was getting 2+ amps at all times. On the nexus 6p I was getting 1.8 amps.
Can anybody else also check to see what you're getting. Please post what the battery percent is at when up plug in to charge, and what the app Ampere is showing.
I am using original charging brick and original usb a to type c cable.
When the screen is on fast charging is disabled, when its off its charging at [email protected] from 0 to maybe 70% then it trickle charges.
With standard 2A charger, i can see 1600-1700 in ampere,
With QC 2.0 , am checking the voltmeter and it do the 9v charging,
So nothing wrong
peachpuff said:
When the screen is on fast charging is disabled, when its off its charging at [email protected] from 0 to maybe 70% then it trickle charges.
Click to expand...
Click to collapse
i tried to use the phone when it charges and it doesn't slow down the charge rate....maybe if the device get hot then it slows down
otonieru said:
With standard 2A charger, i can see 1600-1700 in ampere,
With QC 2.0 , am checking the voltmeter and it do the 9v charging,
So nothing wrong
Click to expand...
Click to collapse
Standard 2A charger, you mean the original that came with the phone?
Charkatak said:
Standard 2A charger, you mean the original that came with the phone?
Click to expand...
Click to collapse
No, i mean any decent 2A charger,
I use my country local brand Hippo, for example, and charging rate is good
The one came with the phone is QC 2.0 that can go faster than normal 2A charger, although it only rated at 1.67 but it's 9V
So this is what I've found out.
First of all the app Ampere only gives charging information for when the screen is ON and not OFF. I uninstalled the app and installed AccuBattery which does everything.
When charging with the screen on the phone charges with amps of 1.3 amps.
When charging with the screen off the phone charges at 2.5 Amps.
Again all original utilities used
Duplicate post
AndroidRaven said:
So this is what I've found out.
First of all the app Ampere only gives charging information for when the screen is ON and not OFF. I uninstalled the app and installed AccuBattery which does everything.
When charging with the screen on the phone charges with amps of 1.3 amps.
When charging with the screen off the phone charges at 2.5 Amps.
Again all original utilities used
Click to expand...
Click to collapse
This is interesting and annoying at the same time. I had no idea the phone charged at different rates based on if the screen was off or on. my previous htc 10 did not do this and charged fast anytime it was plugged in. while driving and running waze i noticed the s8 didnt charge as fast with the screen on but ill have to try with it off to see the rate. i also installed accubattery to test screen off charging rate since ampere doesnt. thanks
What is the default charging rate of galaxy s8 plus?
mrjoy said:
What is the default charging rate of galaxy s8 plus?
Click to expand...
Click to collapse
I have seen I think up to 1.5 amps or so. What ever the quick charge is rated for I would assume. Screen on full charge. 9 volts. At .5 amps
TheMadScientist said:
I have seen I think up to 1.5 amps or so. What ever the quick charge is rated for I would assume. Screen on full charge. 9 volts. At .5 amps
Click to expand...
Click to collapse
I mean the default charge rate. I'm checking in Galaxy Current Charge app & its shows approx 1500 to 1800 MA on screen off. Thats i want to know from others what they getting in their s8+?
mrjoy said:
I mean the default charge rate. I'm checking in Galaxy Current Charge app & its shows approx 1500 to 1800 MA on screen off. Thats i want to know from others what they getting in their s8+?
Click to expand...
Click to collapse
Well I drained to 60% and recharged and on fast charge i got 1.5 amps or 1500 milli
I go off my cable it has never let me down
I have had to many device where the readings of the apps where off
That current cable is pretty accurate most apps I have seen on S8 though
I use it to detect charging problems on blocks,cords,and device Found the sweet spot on my old note 2 with it and made it usable for now again
TheMadScientist said:
Well I drained to 60% and recharged and on fast charge i got 1.5 amps or 1500 milli
I go off my cable it has never let me down
I have had to many device where the readings of the apps where off
That current cable is pretty accurate most apps I have seen on S8 though
I use it to detect charging problems on blocks,cords,and device Found the sweet spot on my old note 2 with it and made it usable for now again
Click to expand...
Click to collapse
Do you get stable 1.5 amp all the time or it constant gets up & down?
mrjoy said:
Do you get stable 1.5 amp all the time or it constant gets up & down?
Click to expand...
Click to collapse
It variates up and down a bit seems pretty stable till i turn on screen
So I bought a very cheap cable at the 'Action' (a discount store in the Netherlands) and I didn't believe what I saw.... 2.7 Amp, with SCREEN ON. I tested with 3 apps. It IS really the loading amp.
Unbelievable !! THe cable can be inserterd in 2 ways (everybody knows here, USB-C) With the label on the cable up works the fastest. I think charging with phone off goes even faster, till 80 %, maximal 45 min. Is this an update of Android for the S8plus or do I have an extremely good cable ?

[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.

Fast Charging support

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.
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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?
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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?
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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?
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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.
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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

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