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[Q] Galaxy S5 fast charge?

Hello
What do I need to get Fast Charge?

a charger.

bloodrain954 said:
a charger.
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Lol!!!!

MariosFFX said:
Hello
What do I need to get Fast Charge?
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fast charge is generally a feature that needs to be built into a custom kernel

Don't know about you but my S5 chargers incredibly fast compared to my SIII and Nexus 7. Even with fast charge on.

Agree, my S5 charges at 1.2A given a charger capable of this, and that is fast.

timrichardson said:
Agree, my S5 charges at 1.2A given a charger capable of this, and that is fast.
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correction S5 chargers are shipped with a 2.0A chargers and it charges at that rate.

jucytec said:
correction S5 chargers are shipped with a 2.0A chargers and it charges at that rate.
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Yes, the S5 charges at 2amp. (Kernel reports 1800mah)
If your phone is reporting that it charges any slower than that, it's an energy deficiency of the charger supply, bad cable, or bad micro usb connection.

I use an app which reports charging current. With a standard micro usb cable i never morw than 1200 mA (and about 450 mA from a PC/mac usb plug)
Sent from my SM-G900F using Tapatalk

While it's true that the phone ships with a 2A charger, the charging current does not exceed 1.2A AFAIK.

Gotta love MicroUSB 3.0.

It already charges from under 10% to 100% in a mere 2 something hours (bundled charger and USB 3 cable). You want something much faster than that???

nikhilmulay said:
While it's true that the phone ships with a 2A charger, the charging current does not exceed 1.2A AFAIK.
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Yes I think in the end it is something around this current. What the apps report is more "charging in 1800mA mode" and not really charging with continous/real 1800mA. If you like to know more exactly what the current is you may write down time/percentage values for e.g. every 5% of battery power starting with an nearly empty battery. Then you can draw an line of the effective loading current.
With the original charger you should be able to get stable 1800mA but if the loading circuit of the S5 really goes this high I did not check.

I believe it peaks at 1800mah with the screen off. It is 1200 mah limited when screen is on.

Sorry to awaken this post.
As most of you, my S5 reported charging at stable 1200 mA with wall charger, probably 1800mA when turned off.
But, I can say a custom rom unleash battery charging in the same conditions as stock rom. I get stable 1800 mA with LineageOS, even screen on, with original charger and usb 2 or usb 3 cable.

Fast Charging?!?

Hello.
Can someone explain me how on earth does fart charging works on this device?
I've tried the included cable and charger, third party chargers and i don't see any fast charging going on?!? or any indication on screen that it's happening.
I've read somewhere that you need a special cable to use with the included charger (?!?!) is this true? where do you get this cable?
Phone is amazing but the charging part is really is really weird if you ask me.
Thanks.
J.

Joao Oliveira said:
Hello.
Can someone explain me how on earth does fart charging works on this device?
I've tried the included cable and charger, third party chargers and i don't see any fast charging going on?!? or any indication on screen that it's happening.
I've read somewhere that you need a special cable to use with the included charger (?!?!) is this true? where do you get this cable?
Phone is amazing but the charging part is really is really weird if you ask me.
Thanks.
J.
Click to expand...
Click to collapse
it sharges in an hour and half with me
it is quite fast

rowihel2012 said:
it sharges in an hour and half with me
it is quite fast
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Click to collapse
do you get any message saying fast charging?

it doesnt show any fast charging message, so i wouldnt rely on such a message to make sure its working. just use the included cable and charger and ull be fine it takes about 2.5 hours to charge from 0-100% via fastcharge
Sent from my Huawei Mate 8 NXT-AL10 using Tapatalk

Joao Oliveira said:
do you get any message saying fast charging?
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Click to collapse
no

rowihel2012 said:
no
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Yeah ...That's why I asked. I plugged a meter to the charger and never saw it go more than 5v 2a.
I think it needs a special cable for the 9v but I can't find any info.
2.5h is not fast charge. My old s6 edge plus used to take around 70-80 m from 5-100% if if you put the remaining 1000mah shouldn't take that long lol

Mean in 30 min 40% recharge . My phone 0 -100% charged in 2:00

trust me, it is fast charge
calculate for yourself: original huawei charger is rated at 9V 2A, thats 18W total. 2A is 2000 mA. mate 8 battery is 4000 mAh.
best case scenario: 4000 mAh / 2000 mA = 2h
now add to that the extra time it needs to charge from 85-100%, because at 85% it automatically slows down charging to prolong the health of the battery and youre at the 2.5h FAST CHARGING time
also, i dont believe for a SECOND that the S6 edge+ charged that fast in your case. check this review: http://www.trustedreviews.com/samsung-galaxy-s6-edge-plus-review-battery-life-and-verdict-page-6
"Fast charging comes as standard with the S6 Edge+ and it works. It charged from 0 to 100% in just 1 hour 45 minutes. Samsung claims wireless charging has also been improved – it’s 27% faster on the Edge+ compared to the normal S6 and S6 Edge."
so thats 105 minutes for 3000 mAh. add to that 33.3% to get to 4000 mAh and u get a total charging time of..... 140 minutes. which is 2 hours and 20 minutes

jbmc83 said:
trust me, it is fast charge
calculate for yourself: original huawei charger is rated at 9V 2A, thats 18W total. 2A is 2000 mA. mate 8 battery is 4000 mAh.
best case scenario: 4000 mAh / 2000 mA = 2h
now add to that the extra time it needs to charge from 85-100%, because at 85% it automatically slows down charging to prolong the health of the battery and youre at the 2.5h FAST CHARGING time
also, i dont believe for a SECOND that the S6 edge+ charged that fast in your case. check this review: http://www.trustedreviews.com/samsung-galaxy-s6-edge-plus-review-battery-life-and-verdict-page-6
"Fast charging comes as standard with the S6 Edge+ and it works. It charged from 0 to 100% in just 1 hour 45 minutes. Samsung claims wireless charging has also been improved – it’s 27% faster on the Edge+ compared to the normal S6 and S6 Edge."
so thats 105 minutes for 3000 mAh. add to that 33.3% to get to 4000 mAh and u get a total charging time of..... 140 minutes. which is 2 hours and 20 minutes
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I will make a full test from 0 to 100. I only charged from 40 to 100 and it took way more than 2 hours... that's why i asked if any special cable was needed. And as i told i mesured the charging rate coming out of the charger and never passed the 5V.
As for non Believing. It's REALLY pisses me off when people write that crap. Why would I lie? what would i gain from it? I sold the phone because i wasn't happy with it.... On the contrary and in case you don't know most sites like the ones you post are PAID to give positive reviews.

I checked with including charger and cable and the app Ampére and it charged with 2800mah. So, in ideaal situation it means a charging time of a proximity 1h and 26min. That means "fast charging". At least in my opinion. ?

Joao Oliveira said:
I will make a full test from 0 to 100. I only charged from 40 to 100 and it took way more than 2 hours... that's why i asked if any special cable was needed. And as i told i mesured the charging rate coming out of the charger and never passed the 5V.
As for non Believing. It's REALLY pisses me off when people write that crap. Why would I lie? what would i gain from it? I sold the phone because i wasn't happy with it.... On the contrary and in case you don't know most sites like the ones you post are PAID to give positive reviews.
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that doesnt make sense what ure saying because in this case the site actually stated a HIGHER amount of minutes that it would take the s6 edge plus to fully charge from 0-100% so what now, theyre getting paid to write negative reviews as well?
also, no, ure not "gaining" anything from that, but people tend to exaggerate a lot, do a quick "drive by" in a thread and post random statements based on non-correctly remembered experiences and this is exactly how false statements are converted into "truths / facts". read my post and tell me where exactly i listed anything wrong. check various reviews on the mate 8, they all stare the same thing: about 2.5h for a full charge, give or take 10-20 min. it also compares perfectly with the charging time of the s6 edge+ in terms of mAh/min, and in fact these two phones are indeed VERY close, mate 8 being at 49mAh/min and the s6 series at around 50-52, so just marginally faster... which, again, is also represented by the numbers i listed in my post before
and again: there is NO extra message or notification stating ure in fast charge mode on the mate 8, it just does its job, thats it!
if ure getting slower charging rates / voltages, make sure to use the original charger and original cable and both with a proper high voltage power outlet.
Sent from my Huawei Mate 8 NXT-AL10 using Tapatalk

I noticed the fast charging only really kicks in if you leave your phone alone. But if you keep using it while it's charging, it just charges at regular speed. But the moment I put the phone down and screen of for 5 minutes, it quick charges like crazy

nighthawk626 said:
I noticed the fast charging only really kicks in if you leave your phone alone. But if you keep using it while it's charging, it just charges at regular speed. But the moment I put the phone down and screen of for 5 minutes, it quick charges like crazy
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Yes im checked It is true
Sent from my HUAWEI NXT-L29 using Tapatalk

lucky then that i always leave my phone alone when its charging
Sent from my Huawei Mate 8 NXT-AL10 using Tapatalk

nighthawk626 said:
I noticed the fast charging only really kicks in if you leave your phone alone. But if you keep using it while it's charging, it just charges at regular speed. But the moment I put the phone down and screen of for 5 minutes, it quick charges like crazy
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I hadn't tested this. After i turn off my phone, a few minutes later it jumps to 9V 2A on my meter. If you turn it back on it goes down to 5V 1A. Must be a phone security thing, which is kinda cool in a way if you ask me.
Btw Apparently quick charge works with non original chargers too. I have a Cheotech 60W 6 port usb with 2 Quick charge ports (which supports 9V 2A/ 12V 1.5A) and it works Using the original cable though.

Don't use fast charging unless you really need it.
Always fast charging overnite (when you're not actually using the phone for many hours) can only shorten your battery longevity more quickly then with normal charging.

Joao Oliveira said:
I hadn't tested this. After i turn off my phone, a few minutes later it jumps to 9V 2A on my meter. If you turn it back on it goes down to 5V 1A. Must be a phone security thing, which is kinda cool in a way if you ask me.
Btw Apparently quick charge works with non original chargers too. I have a Cheotech 60W 6 port usb with 2 Quick charge ports (which supports 9V 2A/ 12V 1.5A) and it works Using the original cable though.
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is there option somewhere to turn it off? plz
themissionimpossible said:
Don't use fast charging unless you really need it.
Always fast charging overnite (when you're not actually using the phone for many hours) can only shorten your battery longevity more quickly then with normal charging.
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Click to collapse
Sent from my HUAWEI NXT-AL10 using Tapatalk

stesteste said:
is there option somewhere to turn it off?
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When I'm going to recharge for many hours overnite I use a 1A travel charger.

i guess thats the best way to restrict charging amperage although it shouldnt hurt the battery so much, considering that the amperage drops off sharply once level reaches 85% and above...
Sent from my Huawei Mate 8 NXT-AL10 using Tapatalk

Charging a phone with a lower rated current, will cause the charger to "try and match" the current requested.
Amps work in that manner, the device determines the draw. For example, using a 5v 5a (theoretical device) on a 5v 1a device will likely melt your adapter / screw up your phone from improper voltages.
In that case, an adapter may heat up, or if its smart enough (unlikely), it will turn off periodically. Most of the time, it will have an unstable voltage (undervolting) which is how some phones are able to detect an improper charger is used. This is bad for your battery.
I do not recommend charging with a charger that isn't rated for it. This is widely documented.

How to measure charging rate even when the screen is off on S8 plus ?

Hi, I got the S8 plus verizon version.
I suspect I have fast charging issue. The phone doesn't seem to do fast charge all the time even when the screen is off.
I want to know if there is an app that can measure the "overall" charging rate from start to finish when the screen is off. I tried Ampere, it is good app, but it only shows the "current" rate, which very often is around 500mA to 700mA on average on Samsung original charger. Yes, it does occusionally go up to 900mA or 1020 mA. But never over, on samsung original charger. It is normal? I remember I used the Anker charger with QC, it shows it went up to 1680 mA ... However, when I do it now, it does not. It caps on 1020 mA.
Sometime even worst if I a QC car charger, at around 300mA .
When the screen is off, there is no way for me to see the charging rate. If QC is not working, is the phone has some minor defect? I should sent it for repair ?
Please let me know if I have other ways to measure it.
(Thanks in advance.)
Note:. Yes, I also experience some screen shut off or no powering on issue like some members here.

xin008 said:
Hi, I got the S8 plus verizon version.
I suspect I have fast charging issue. The phone doesn't seem to do fast charge all the time even when the screen is off.
I want to know if there is an app that can measure the "overall" charging rate from start to finish when the screen is off. I tried Ampere, it is good app, but it only shows the "current" rate, which very often is around 500mA to 700mA on average on Samsung original charger. Yes, it does occusionally go up to 900mA or 1020 mA. But never over, on samsung original charger. It is normal? I remember I used the Anker charger with QC, it shows it went up to 1680 mA ... However, when I do it now, it does not. It caps on 1020 mA.
Sometime even worst if I a QC car charger, at around 300mA .
When the screen is off, there is no way for me to see the charging rate. If QC is not working, is the phone has some minor defect? I should sent it for repair ?
Please let me know if I have other ways to measure it.
(Thanks in advance.)
Note:. Yes, I also experience some screen shut off or no powering on issue like some members here.
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=com.digibites.accubattery

having same issue
Am having same issue using the iphone 8

xin008 said:
Hi, I got the S8 plus verizon version.
I suspect I have fast charging issue. The phone doesn't seem to do fast charge all the time even when the screen is off.
I want to know if there is an app that can measure the "overall" charging rate from start to finish when the screen is off. I tried Ampere, it is good app, but it only shows the "current" rate, which very often is around 500mA to 700mA on average on Samsung original charger. Yes, it does occusionally go up to 900mA or 1020 mA. But never over, on samsung original charger. It is normal? I remember I used the Anker charger with QC, it shows it went up to 1680 mA ... However, when I do it now, it does not. It caps on 1020 mA.
Sometime even worst if I a QC car charger, at around 300mA .
When the screen is off, there is no way for me to see the charging rate. If QC is not working, is the phone has some minor defect? I should sent it for repair ?
Please let me know if I have other ways to measure it.
(Thanks in advance.)
Note:. Yes, I also experience some screen shut off or no powering on issue like some members here.
Click to expand...
Click to collapse
Although not an app, this works great as it shows the charging voltage as well as the current.
https://www.amazon.com/Kurrent-Type-C-Monitor-Macbook-Chargers/dp/B06XGJ6K8Z
Sent from my SM-G955U using Tapatalk

+1 for AccuBattery.

Xealot42 said:
+1 for AccuBattery.
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gdeangel said:
Although not an app, this works great as it shows the charging voltage as well as the current.
https://www.amazon.com/Kurrent-Type-C-Monitor-Macbook-Chargers/dp/B06XGJ6K8Z
Sent from my SM-G955U using Tapatalk
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any ways to remove battery percentage on the status bar?

Near_07 said:
any ways to remove battery percentage on the status bar?
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AccuBattery Settings > Notification Priority > Minimum. It will still show in the pull down notification list but the battery % status bar indicator will be removed.
You could probably also disable it entirely via phone settings > notifications.

What is the default charging rate of galaxy s8 plus?

Don't know but this is screen on and near full charge

TheMadScientist said:
Don't know but this is screen on and near full charge
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Does it per amp or ma base?
amps

mrjoy said:
Does it per amp or ma base?
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Amps
I wish it did both but this only shows what drawing through the cable into the device obviously nothing plugged in registers 4.95 volts but 0 amps
My note 2 usb was flakey and i noticed it was only drawin .01 .02 amps then in the right spot 1.25

TheMadScientist said:
Amps
I wish it did both but this only shows what drawing through the cable into the device obviously nothing plugged in registers 4.95 volts but 0 amps
My note 2 usb was flakey and i noticed it was only drawin .01 .02 amps then in the right spot 1.25
Click to expand...
Click to collapse
I think you are measuring with usb meter but im measuring with Galaxy Current Charge app & it shows MA per rate current. Can you tell why I'm not getti g stable MA rate, it constantly chaging.

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 Samsung Galaxy S8 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

I got problems with it...
Sometimes it charges really quick, like Quick Charge does. But then sometimes it says it needs about 8 hours to charge fully.
Thats why i voted Average 3* and charging speeds sometimes even differs if i plug it out and in again.
EDIT:
With the original charger which came in the box it works fine and needs about 1h and 40m to fully charge.

1 hour 45 mins normal charge with original cable and adapter S8 rocking stock AQF7 not rooted

ShiRaZ1988 said:
With the original charger about 1h and 40m to fully charge.
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Click to collapse
OK, the original charger, what is the Voltage & Amperage Output?
Also.....
From 25% to full charge using a QI Wireless Charger and the Original Charger that came with it, how long to full charge?
From 25% to full charge using the USB out on a laptop (.5Amp), how long to full charge?

ShiRaZ1988 said:
I got problems with it...
Sometimes it charges really quick, like Quick Charge does. But then sometimes it says it needs about 8 hours to charge fully.
Thats why i voted Average 3* and charging speeds sometimes even differs if i plug it out and in again.
EDIT:
With the original charger which came in the box it works fine and needs about 1h and 40m to fully charge.
Click to expand...
Click to collapse
Hi are you Iranian?
If you doesn't use official Charger of S8 that it's available in Phone Box it's probably correct that your device will not be charged very fast and you have to use the Official and trusted charger of Galaxy s8 that Samsung electronics have confirmed it.

Been using the s8+ for two weeks
Not sure what to say. When i check with Ampere app, it only shows it charges for 1000 maH
I have Xiaomi mi5 which charges for 2000-3000 maH with the same charger
How could samsung lose to Xiaomi?

After the August security patch the fast wireless charging is broken. I have the European version S8 and a choetech wireless fast charger. Does anyone has this problem after the last OTA update?
Just to point out, the fast wireless charging option is activated in the settings but the wireless fast charging is not working, only normal wireless charging.

BRK666 said:
After the August security patch the fast wireless charging is broken. I have the European version S8 and a choetech wireless fast charger. Does anyone has this problem after the last OTA update?
Just to point out, the fast wireless charging option is activated in the settings but the wireless fast charging is not working, only normal wireless charging.
Click to expand...
Click to collapse
I was wondering if it was my wireless charger faulty... did you have any source on this bug or it's just your (and mine) experience?

you cant check charging current with ampere app, because Samsung changed charging method a lot after explosive s7.
basically if screen is on charging current drop to ~ 1000mah. and phone use 9v or 12v only if screen is off.
also if you phone charge longer than 2h something is wrong with your charger\wire or phone can't go to sleep properly due to "cancer" apps who prevent full sleep.
But iam here to ask owners of 25watt chargers, is it worth it? how long it takes to charge it with it?
i not sure if link are allowed here but here it is https://www.samsung.com/us/mobile/m...apter-for-galaxy-tabpro-s-25w-ep-ta300cweguj/

XDA_RealLifeReview said:
To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Samsung Galaxy S8 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
1 and half hour and 1 t0 11

Mine charged from 0-100 in around 1:45

Here, Im using Alexis ROM and I hace adaptive fast charge original. Chargimg time: 1-100 in 1.51 hr Its Okay?

Fast Charging Using Nexus 5X Charger

Hey guys, just to let you all know on my findings. I have Nexus 5X charger (rated 5v 3A) and decided to try on my A1.
It goes from 63% (I think, I forgot to write down the actual %) to 100% in 45 minutes. Considering usually after 80% it will charge slowly, I think this is pretty quick time.
I'll test it again some more when the battery level is much lower and report back.
I'm on latest Oreo stable
OPR1.170623.026.7.12.29

are you measuring the charging amperage after 80%?
37% in 45 minutes isn't all that fast, imo.
I'll measure charge time tomorrow, stating start percentage and I'll look for what happens after 80%, to see how much it drops in charging amperage.

goofball2k said:
are you measuring the charging amperage after 80%?
37% in 45 minutes isn't all that fast, imo.
I'll measure charge time tomorrow, stating start percentage and I'll look for what happens after 80%, to see how much it drops in charging amperage.
Click to expand...
Click to collapse
I didn't measure it's amperage, just check the time till it fully charged.
If do the math from this charge means from 0% can be fully charge in 82 minutes. That should be faster than stock charger. One caveat though, if it's really 63% and not 73% when I start charging it.
Now my phone already 2 hours SOT and almost an hour hotspot, but still left 74%. Not easy to deplete it's battery.
One more thing I forgot to mention in first post, I'm on latest Oreo stable.

xb360 said:
Hey guys, just to let you all know on my findings. I have Nexus 5X charger (rated 5v 3A) and decided to try on my A1.
It goes from 63% (I think, I forgot to write down the actual %) to 100% in 45 minutes. Considering usually after 80% it will charge slowly, I think this is pretty quick time.
I'll test it again some more when the battery level is much lower and report back.
I'm on latest Oreo stable
OPR1.170623.026.7.12.29
Click to expand...
Click to collapse
From what I read, Quick Charge would use dynamic voltage (5v-20v) instead of utilizing higher amps to attain higher wattage charging.

Use ampere app to measure current.
For better results try charging it while its off from 0 to 100.
And try while its on.

cr0ssx21 said:
From what I read, Quick Charge would use dynamic voltage (5v-20v) instead of utilizing higher amps to attain higher wattage charging.
Click to expand...
Click to collapse
I'm not sure if Nexus 5X charger is QC, it doesn't stated anywhere. But the amperage is higher than A1 stock charger.
alkesh95 said:
Use ampere app to measure current.
For better results try charging it while its off from 0 to 100.
And try while its on.
Click to expand...
Click to collapse
Ok I'll try it when I charge later. Now the battery still left 50%. I'll drain it another 10% at least before charging.

its still same as before.
only below 2A
Sent from my Mi A1 using Tapatalk

Alright so my battery was at 42% when I plug in the charger. Using ampere it stated Max USB Curr is 2000mA. And the reading max is 1930mA while average is about 1800mA.
After 20 minutes it have gone up to 65%. Reached 90% after 43 minutes. At exactly one hour it reached 97%, which I checked ampere reading is 440mA. 100% reached at 64 minutes.
During charging I received a call which lasted about 3 minutes, which I use loud speaker for the call, so here might have added few minutes to it's charging time.
So I guess the speed is around the same when Oreo beta is?

Start time: 0805h
Battery: 38%
Check in time: 0905h
Battery: 87%
Did see that the amperage has lowered to around 1A after the battery reached past 80%. It definitely decreases after 90%, I'll check this the next time I charge.
I can run the test again with a different usb measuring tool. This first one seems to indicate a lower voltage than my other tool by about 0.2v (and amperage by about 0.2-0.3A. Although it should just be a passthrough for the power, it may be inhibiting the power sent to the phone.
The measured amount of power sent was ~1600mAh to get the phone to 90%. That seems about right for 52%, give or take.

i try with Honor 8 Pro QC charger (9v 2a) and it goes from 0 to 78% in 60 minutes, phone was off. I don't know the total time to 100%, sry

Stayed around 1400 mA for me above 80%

goofball2k said:
Start time: 0805h
Battery: 38%
Check in time: 0905h
Battery: 87%
Did see that the amperage has lowered to around 1A after the battery reached past 80%. It definitely decreases after 90%, I'll check this the next time I charge.
I can run the test again with a different usb measuring tool. This first one seems to indicate a lower voltage than my other tool by about 0.2v (and amperage by about 0.2-0.3A. Although it should just be a passthrough for the power, it may be inhibiting the power sent to the phone.
The measured amount of power sent was ~1600mAh to get the phone to 90%. That seems about right for 52%, give or take.
Click to expand...
Click to collapse
Using Nexus 5X charger?
I got around 1800 average
Trusconi said:
i try with Honor 8 Pro QC charger (9v 2a) and it goes from 0 to 78% in 60 minutes, phone was off. I don't know the total time to 100%, sry
Click to expand...
Click to collapse
That seems faster. I got a Huawei 9v 2a charger too, I'll test it after my battery dropped below 50%.
alkesh95 said:
Stayed around 1400 mA for me above 80%
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Click to collapse
Stayed 1400 until full?
Using Nexus 5X charger?

xb360 said:
Using Nexus 5X charger?
I got around 1800 average
Click to expand...
Click to collapse
1600mAh is the amount of power that was sent to the phone, as measured by my USB measuring tool. If you're talking about amperage during charging, I get around 1.9A on average. It fluctuates between 1.85 and 1.95A, and the voltage fluctuates between 4.95 and 5.20.
This is using a Tutuo charger which is capable of QC 3.0, and also 5v/2.4A.
I've tested using the regular 2.4A port and the QC port.
Basically, this phone does not request more than 2A at most, so even a 3A charger isn't going to make a difference.

I am using stock charger only. Don't have fast charger won't buy it unless phone supports it

goofball2k said:
1600mAh is the amount of power that was sent to the phone, as measured by my USB measuring tool. If you're talking about amperage during charging, I get around 1.9A on average. It fluctuates between 1.85 and 1.95A, and the voltage fluctuates between 4.95 and 5.20.
This is using a Tutuo charger which is capable of QC 3.0, and also 5v/2.4A.
I've tested using the regular 2.4A port and the QC port.
Basically, this phone does not request more than 2A at most, so even a 3A charger isn't going to make a difference.
Click to expand...
Click to collapse
Looks like it, it won't accept above 2A. I want to try with 9v 2A charger, but after 24 hours and 2.5 hours SOT, the phone still have 75% battery.
alkesh95 said:
I am using stock charger only. Don't have fast charger won't buy it unless phone supports it
Click to expand...
Click to collapse
Looks like surely no point to buy fast charger for now.
How much mA you get from ampere when using the stock charger and batter is less than 80%?

xb360 said:
Looks like it, it won't accept above 2A. I want to try with 9v 2A charger, but after 24 hours and 2.5 hours SOT, the phone still have 75% battery.
Looks like surely no point to buy fast charger for now.
How much mA you get from ampere when using the stock charger and batter is less than 80%?
Click to expand...
Click to collapse
1700 mA -1900 mA +-50mA
Edit: since you are trying so hard.
From what i have read few years back when i had xperia zl
Incase of zl max current was capped at 1.5 A
QC 1 is 5V 2A our charger 10W
I bought Samsung 5v 2a charger for my zl. I still have it. Works fine. (Just adding history to context :laugh
QC 2 was designed to give 18W(average)
5v 2a QC1 compatibility
9v 2a QC2 18W output
12v 1.67a (from Wikipedia)
QC3 went with higher amps and dynamic voltage
Don't know anything about QC4
So give 9v 2a a try while measuring current take screenshots multiple times to track voltage since i don't know any other way to measure voltage except what ampere already shows.
PS: i know commands to read from proc and all but since i haven't rooted my device i won't ask you to go through that way.

I used lenovo charger which support 5v-2A, 7v-2A, 9v-2A and 12v-2A
Started charging 12:54 AM, battery at 4%, airplane mode activated
and these are the results

alkesh95 said:
1700 mA -1900 mA +-50mA
Edit: since you are trying so hard.
From what i have read few years back when i had xperia zl
Incase of zl max current was capped at 1.5 A
QC 1 is 5V 2A our charger 10W
I bought Samsung 5v 2a charger for my zl. I still have it. Works fine. (Just adding history to context :laugh
QC 2 was designed to give 18W(average)
5v 2a QC1 compatibility
9v 2a QC2 18W output
12v 1.67a (from Wikipedia)
QC3 went with higher amps and dynamic voltage
Don't know anything about QC4
So give 9v 2a a try while measuring current take screenshots multiple times to track voltage since i don't know any other way to measure voltage except what ampere already shows.
PS: i know commands to read from proc and all but since i haven't rooted my device i won't ask you to go through that way.
Click to expand...
Click to collapse
I tried with 9v 2A charger, still capped at 5v and almost 2000mA.
One interesting finding is using the 9v and Dash charger plus their cable give consistently almost 2000mA, whereas if using Mi charger and cable; or Dash charger and Mi cable; or Mi charger and Dash cable; all give around 1700 to 1800mA averagely. I think Mi charger and cable is of lower quality and unable to max out 2A.
The conclusion that I found is if want a slightly faster charging then use other better quality charger and cable.
FSLRMH said:
I used lenovo charger which support 5v-2A, 7v-2A, 9v-2A and 12v-2A
Started charging 12:54 AM, battery at 4%, airplane mode activated
and these are the results
Click to expand...
Click to collapse
That's as fast as when Oreo beta is. Like I suspected Mi original charger and cable unable to max out the ampere.

Thanks for all the hardwork???
This thread should be locked now and made into sticky.
Cause this is nothing short of a research on fast charging in Mi A1.

Hi There,
I just read that Mi has not opted for Quick Charge by paying royalty to Qualcomm. So they have disabled QC functions from software side, though chip is definitely capable.
By Mistake, they let Beta have QC functionality. But now that has been fixed.
We now have to find way to enable it ... If possible.