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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.

Can this phone support or charge with a 5v 3.5 amp charger? Is it faster? ZeroLemon

Next week getting a new Note 4 - and zerolemon 10,000mah battery!
I need to deep cycle battery 6-8 times to get phone to display the current vbbatt % correctly. The manufacturer for zerolemon says turn off fast charge and charge 12hrs each time.
That being said, with fast charge off, can I use a 5v 3.5 amp charger I see on amazon and possibly charge the phone faster than 12 hrs like normal is using a 2.1 amp charger?
Anyone tried this with let's say even the stock battery does the battery actually charge faster due to the increased amps or would it be a waste and still charges at the slower 2.1 amps?

I never deep cycled the battery and the longest discharge I got was 1 week with 16 hours on screen time...you just need to make sure you use an updated kernel with the zL fix.

The amperage rating is the max the charger can put out. The Note will draw the same amperage on either charger because they are both 5V.

ackliph said:
The amperage rating is the max the charger can put out. The Note will draw the same amperage on either charger because they are both 5V.
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But will the phone charge faster on 3.5 amps at 5v vs the 1.5 amp or 2.1 amp the stock charger puts out? I am getting ZeroLemon and need to deep cycle the battery a few times and am trying to have it fully charged in less than the standard 12 hrs - was hoping a charger with more amps would cut down on the 12 hrs lol
http://www.amazon.com/gp/product/B00WN86VYQ/ref=ox_sc_act_title_8?ie=UTF8&psc=1&smid=A3RPN0HBLXDN8Z

i just used the stock fast charger on my zerolemmon with fast charge on and i never let it go the full 1 hours. Ive had insane battery life with it so i dont think it matters

drtechnology said:
But will the phone charge faster on 3.5 amps at 5v vs the 1.5 amp or 2.1 amp the stock charger puts out? I am getting ZeroLemon and need to deep cycle the battery a few times and am trying to have it fully charged in less than the standard 12 hrs - was hoping a charger with more amps would cut down on the 12 hrs lol
http://www.amazon.com/gp/product/B00WN86VYQ/ref=ox_sc_act_title_8?ie=UTF8&psc=1&smid=A3RPN0HBLXDN8Z
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Your Note 4 will draw a maximum of 1.9A on a 5V standard charger and a maximum of 1.66A on a 9V Quickcharger. If you multiply these values, you will get your "charging speed" in Watts: The maximum is 9.5W on normal charger and 15W on a quick charger.
Using a higher rated normal charger (eg 5V/3A) will NOT INCREASE charging speed. The Note 4 will never draw more than 1.9A on 5V.
Using a lower rated normal charger (eg 5V/1A) WILL DECREASE the charging speed. The Note 4 will notice that it cannot get 1.9A from the charger and drop the current. Bad and/or long cables can also influence the charging speed negatively.
Also noteworthy: Quick charging will only work when screen is off. As soon as you turn your screen on, the charging speed when connected to a quick charger will drop from 15W to an extremely slow 5W. The only fix for this horrible Samsung joke is a custom ROM like CyanogenMod.
You can charge your Zerolemon battery nicely with the original Quickcharger that came with the phone. That will do 15W and is as fast as you can possibly charge.

joeuser said:
Your Note 4 will draw a maximum of 1.9A on a 5V standard charger and a maximum of 1.66A on a 9V Quickcharger. If you multiply these values, you will get your "charging speed" in Watts: The maximum is 9.5W on normal charger and 15W on a quick charger.
Using a higher rated normal charger (eg 5V/3A) will NOT INCREASE charging speed. The Note 4 will never draw more than 1.9A on 5V.
Using a lower rated normal charger (eg 5V/1A) WILL DECREASE the charging speed. The Note 4 will notice that it cannot get 1.9A from the charger and drop the current. Bad and/or long cables can also influence the charging speed negatively.
Also noteworthy: Quick charging will only work when screen is off. As soon as you turn your screen on, the charging speed when connected to a quick charger will drop from 15W to an extremely slow 5W. The only fix for this horrible Samsung joke is a custom ROM like CyanogenMod.
You can charge your Zerolemon battery nicely with the original Quickcharger that came with the phone. That will do 15W and is as fast as you can possibly charge.
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Wow. Good info. Thx. Now a ton with a hack to draw more amps lol. Hmmmm lolol

No Quick Charge

I think it's a bit deceiving to give the impression this phone charges fast. It states 5V/2a fast charging. That's not considered fast charging if you ask me. It doesn't support quick charge I can tell you that much for certain. I guess they get away with it by saying fast charging instead of quick charging. Kind of a bummer not to be able to quick charge with such a large battery.

I was surprised too.

Yeah I noticed that on my L24.. but it does seem faster than my kiwi?

It is however pretty quick... About 2 hours to full.

tre717 said:
Yeah I noticed that on my L24.. but it does seem faster than my kiwi?
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Yes because it was 1A charger for Kiwi and this time is 5V/2A charger.
---------- Post added at 04:26 PM ---------- Previous post was at 04:22 PM ----------
pacattack81 said:
I think it's a bit deceiving to give the impression this phone charges fast. It states 5V/2a fast charging. That's not considered fast charging if you ask me.
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Yup.
Do not expect the fast charging to charge the phone in 30 minutes or 60 minutes because its 5V/2A charger and not 9V/2A charger, it may charge the phone bit faster than the traditional charger but nothing out of the box here. If you use, 9v/2a cahrger, you may see little difference not much. but once the full 3340 mAh is charged here, you may get a better standby time.

they state 100 minutes for 100 percent.. its good, no big issue for me. tho I'm living with the honor 5x with 2 and a half h needed for a full charge,
it's definitely an upgrade, considering honor 5x

Well having this cheap phone and asking for premium features such as quick charge is a bit too much, don't you think so?

You can't expect Dash Charging at this price point.

That is strange as vmall states that the Honor 6X has quick charge technology.

DarkGuyver said:
That is strange as vmall states that the Honor 6X has quick charge technology.
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Is it? It was advertising as 2A fast charge. But not quick charge.

vsriram92 said:
Is it? It was advertising as 2A fast charge. But not quick charge.
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Ah!

as per Honor India official page on facebook this phone supports upto 9V/2A (18W) input. that makes it 8W more than the standard 10W (5V/2A) supplied charger. that should lessen the charging time.

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.
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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
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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?
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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
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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?
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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
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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+?
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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
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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?
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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 ?

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.
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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
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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.
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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.
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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
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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
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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.
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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
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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%?
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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
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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.