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Portable/External Battery Fast Charging Question

I just recently purchased a external battery charger on amazon, I'm pretty sure i wont get fast charging out of it, but my question for you guys is that if I'm NOT getting fast charging to my note 4, is it better to turn off fast charging in my battery settings on my note? Or can I leave the fast charging settings on the way it is and the phone will still charge from my external with no problem?
To be more clear, if I'm using a charger with no fast charging capabilities, do I have to turn the fast charging settings off in order for it to get a good charge still? Or is it ok to leave the fast charging settings on?

I was under the assumption that fast charging was for charging on a USB port on a PC and it would turn off MTP capabilities and use it for power only. I could be wrong though.
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TylerHarrison21 said:
I was under the assumption that fast charging was for charging on a USB port on a PC and it would turn off MTP capabilities and use it for power only. I could be wrong though.
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Fast charging is exactly what it sounds like. Charging the phone through the factory charging adapter and plug that came in the box, but you have to go to the phone's battery settings and turn on fast charging, this allows your phone to charge faster than normal, a feature that the Note 4 has.
Fast charging can be achieved with some other brand name chargers as well, but I never heard of it being possible when connected to a USB port on a PC before...

Silly question I know, so don't hammer me, Do we have to actually use the bundled USB cable? or any cable will do the job, given its connected to the rapid/adaptive charger.

Willy318is said:
Silly question I know, so don't hammer me, Do we have to actually use the bundled USB cable? or any cable will do the job, given its connected to the rapid/adaptive charger.
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Good question, so I tried the Samsung power block with a different USB cable and the Fast Charger Connected indicator popped up on the screen. So I would say that you do not have to use the bundled cable.

Fast Charging?

I'm not sure if I'm being stupid or not, but when I charge my S6 (using the cable that came with it) and the phone is off, I do not get the fast charging symbol/text. However, as soon as my wife plugged hers in to charge it for the 1st time and it was off, it had the fast charging text. Am I doing something wrong? Thanks in advance.

I get the fast charge symbol and it says "fast charging" Not sure what you are doing wrong.

jpolidori11 said:
I'm not sure if I'm being stupid or not, but when I charge my S6 (using the cable that came with it) and the phone is off, I do not get the fast charging symbol/text. However, as soon as my wife plugged hers in to charge it for the 1st time and it was off, it had the fast charging text. Am I doing something wrong? Thanks in advance.
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Just to make sure, you said you were using the cable, are you also using the white 110 adapter that you plug the cable into on the wall side? I always get the fast charging message, both using the equipment supplied with the phone, as well as using a "Qualcomm 2.0" fast charge car cigarette lighter style adapter I bought from Amazon.
Good luck

Can we control when it fast charges vs slow charges? What's the difference (besides the obvious)?

sd0070 said:
Can we control when it fast charges vs slow charges? What's the difference (besides the obvious)?
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Assuming you use the included charger, or another charger with Qualcomm 2.0 Quick Charge capability, it will always take advantage of the technology. None of the wireless charging, as far as I know, is equipped with the fast charge technology, so that will always be at conventional speed.
As an aside, I have plugged my phone into the "quick charger" and then set it on the wireless charging pad, and the pad shows it "charging". I haven't really checked to see if that adds anything to the speed of the charge.

sd0070 said:
Can we control when it fast charges vs slow charges? What's the difference (besides the obvious)?
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I believe there is a setting in the battery stats menu where you can turn off fast charging well it was on my note 4 anyway.

Fast Charging Not Always Fast

I just picked up a wireless fast charger for use in my car, and found out (via one of those USB power meters) that the S7 isn't actually fast charging even though it says it is. When the screen is off and the device is fully idle, it will charge at 7-12W (power input to the wireless fast charger) but when the screen is on, it drops down to 3-5W which is not even enough to maintain state of charge if I'm doing something like a phone call or GPS navigation. Any ideas why this is? Seems like it might be thermal related. I've got root and various tweaking apps, is there a way to force it to do full 10W charging whenever possible and throttle CPU instead if needed for thermals?

Found the answer to part of my question here: http://androidforums.com/threads/galaxy-s7-wont-fast-charge-if-the-screen-is-on.1002329/
It's by design that if the temperature is too high or the screen is on fast charging is disabled. Question remains if this can be bypassed by root commands/tweaks or not.

jkenny23 said:
Found the answer to part of my question here: http://androidforums.com/threads/galaxy-s7-wont-fast-charge-if-the-screen-is-on.1002329/
It's by design that if the temperature is too high or the screen is on fast charging is disabled. Question remains if this can be bypassed by root commands/tweaks or not.
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It also depends on charger

As long fast charging is switched ON on your phone and the wireless charger does support fast charging, it will say that its fast charging.
However, if your phone while charging got hot or you are charging in a hot ambient temperature, the phone will charge at normal rates even less as the temps of the phone goes up. Thus the fan in the wireless charger
Btw am referring to the official samsung fast charger stand with a gs7, havent tried other brands.
Hope this helps

USB "Adaptive Fast Charging" not working?

Hi.
I read about problems with "wireless recharging", but what about the usb one?
I enabled / disabled the fast charge and the difference it's about 20 minutes.
Fast charging (enabled): i.imgur.com/VMFTRtL.jpg
Cable charging (disabled): i.imgur.com/mylrOBo.jpg
I'm using the Samsung charger and cable. "Ampere" shows about 1000ma during recharging, for both.
I can't understand if it's only for my phone, or even worse, it's a "Samsung Feature"

schizzo_ita said:
Hi.
I read about problems with "wireless recharging", but what about the usb one?
I enabled / disabled the fast charge and the difference it's about 20 minutes.
Fast charging (enabled): i.imgur.com/VMFTRtL.jpg
Cable charging (disabled): i.imgur.com/mylrOBo.jpg
I'm using the Samsung charger and cable. "Ampere" shows about 1000ma during recharging, for both.
I can't understand if it's only for my phone, or even worse, it's a "Samsung Feature"
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My first question is where is the option? Because the only option i have on my device (AT&T) is for fast wireless charging. I remember on my old S7 that there was an option for adaptive fast charging but i dont see it here. What i find odd is that i show the same time til charged whether im on my fast charging pad or over USB, and i am using a true USB 3.1 card in my PC. Thats also using either the OEM cable or my Aukey USB C to C cable. I always thought even the fast wireless wasnt supposed to be as fast as cable charging. Also, to me, charging from 30% to full shouldnt take 2 hours and 20 minutes, that doesnt seem too "fast" IMO.

cloudraker said:
My first question is where is the option? Because the only option i have on my device (AT&T) is for fast wireless charging. I remember on my old S7 that there was an option for adaptive fast charging but i dont see it here. What i find odd is that i show the same time til charged whether im on my fast charging pad or over USB, and i am using a true USB 3.1 card in my PC. Thats also using either the OEM cable or my Aukey USB C to C cable. I always thought even the fast wireless wasnt supposed to be as fast as cable charging. Also, to me, charging from 30% to full shouldnt take 2 hours and 20 minutes, that doesnt seem too "fast" IMO.
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To find where options for Fast Wireless and Fast battery charging ,
see screenshot attached
Phone/Device Maintenance/Battery /3 dot menu ( right top )Advance Settings ......

cloudraker said:
My first question is where is the option? Because the only option i have on my device (AT&T) is for fast wireless charging. I remember on my old S7 that there was an option for adaptive fast charging but i dont see it here. What i find odd is that i show the same time til charged whether im on my fast charging pad or over USB, and i am using a true USB 3.1 card in my PC. Thats also using either the OEM cable or my Aukey USB C to C cable. I always thought even the fast wireless wasnt supposed to be as fast as cable charging. Also, to me, charging from 30% to full shouldnt take 2 hours and 20 minutes, that doesnt seem too "fast" IMO.
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Can You do some tests with wireless fast recharging? Just use "Ampere" for see how quickly the battery is charging. Like I said before, on cable is about 1000mA for me.

Yeah 1000mA is as good as it gets I'm afraid, its pretty slow compared to VOOC. I've really struggled getting used to the slow charging coming from a Oneplus 3. That being said the rate of charge appears to be constant even with the screen on, so its not all bad.

Question Phone no longer fast charge and usb c headphones dont work

After using for 7 months the usb c headphones no longer work, also phone charges slowly. Anybody with similar problem?

amakuramio said:
After using for 7 months the usb c headphones no longer work, also phone charges slowly. Anybody with similar problem?
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Did you change anything in your battery settings? Battery and Device Care --> Battery --> More Battery Settings then make sure Fast Charging and Super Fast Charging are turned on. Not sure what to suggest on the phones.

Paul_Deemer said:
Did you change anything in your battery settings? Battery and Device Care --> Battery --> More Battery Settings then make sure Fast Charging and Super Fast Charging are turned on. Not sure what to suggest on the phones.
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I found the culprit, seems like water damage...

Hi, I'm curious, how did you find it?

Just throw the phone out of the window you will feel happy and sad at the same time.