Fast cable charging option greyed out while charging? - Samsung Galaxy S8 Questions and Answers

Hi guys I'm not sure it's supposed to be like this... i turned on fast cable charging, then I put it on charge, and even if in the scroll down menu it says fast charging, if i go into the details of the battery the option "fast cable charging" is set to on but greyed out... but if i unplug the cable it turns on. It's just greyed while charging... is it supposed to be like this? Thanks.

When you plug the phone in to charge it will always grey out the option so you can't turn it on or off.
The only way to change the option is to unplug the phone and then set to whether you want to it charge fast or slowly.
Personally I always have fast charge off because it seems to me like the phone battery lasts longer.

Out of curiosity... from 5% how long does it usually take for you guys to charge to 100% with fast charging and slow one? thanks!

It normally takes myself about hour and half to two hours mattering on how much I use phone while fast charging.
Around 2 hours ish with non fast charge.

Related

touch HD battery questions

the first battery charge on the HD is supposed to be a 8 or 10 or 12 hour charge? or on its not necesary
also the time used to charge it to the pc via usb cable is same as if ud plug it in the electric socket?
how long dose it take for u to charge ur phone.....
mine had 4 lines out of 10 and after 3 hours of it beeing conected to my pc and not in use its still got 4 lines....
opinions seem to vary on how long for 1st charge - personally I left mine on (mains) overnight, but that's just because I've had mobiles since year dot, and you used to have to!
But charging via PC doesn't seem to work as well as from the mains charger - depends a lot on the PC and how much juice it kicks out, some are a lot better than others.
Modern phones/batteries do not need "overnight" charging. My Touch HD even came with a little note saying you don't need to charge for 16hrs/overnight. Just charge until it's full...
Better to charge with wall socket because not all USB ports provide enough current. Some can't charge through the USB port while some can.
I can charge through my notebook but it takes a lot longer than the wall socket.
thanks bouth of u for the fast anwsers....
When I set WiFi settings to max performance, my HTC HD will not charge at all, actually it will loose charge during night, display is off, just WiFi, GSM and GPS is active, connected to provided wall charger. Back side of phone is really hot, I measured over 54°C
Problems charging.
guys(and lady's) Just got my HD. been running it for some time to drain the battery, while on my laptop the battery starts charging. I wanted to drain the battery to give it a good charge afterwords so I turnd off the option of charging while unit is active( in batt. menu) but When I got to 5% batt.cap. an tried to charge the unit (batt. option enabled again) it doesn't charge. now my batt. is empty and can't get in the phone. while on power my battery charging led gives a couple of seconds of charge indication then it turns off.
Any suggestions or is my battery dead. (charging unit is oke, and when on power the HD does give sufficient power to the battery (measured with mulitmeter) thx guys edit - Als when on power green and amber lights blink.
Could that be that your battery is too hot ? There is some safety protection that prevent the batyery to charge when it is over a temperature level.
battery not charging properly
My touch hd not charge the battery more then 50% i change the battery but same as before.
any suggestion
Regards
funstuffalex said:
also the time used to charge it to the pc via usb cable is same as if id plug it in the electric socket?
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Click to collapse
Power socket gives about 1amp - USB 500mA (.5 amp)
Touch HD Battery Charging Problem
The rom i am using is Energy 3 Rom
and try to use both sources wall socket and pc usb both are same.
if i charge the battery on usb cradle and put the phone it shoes 100% but after some use of the phone the charging start again and never show's full even left it over night.
Best regards
Not sure what's going on there,but try draining the battery to almost empty each time and then turn your phone off before charging it. Do this a few times and see if it helps. Mine took about a month beforeit came good.
Dear samlives
Thanks for helping
I will try it
Best Regards
HTC Touch Battery Charging Problem
I got a solution its not 100% but for time being its working for me.
Long press the power button and put the device in sleep mode.
All Done now charging 80 to 90% quite better then before.
Thanks a lot

HTC Magic (Sapphire) battery charging issues

OK, first I admit, the battery is a POS. I usually have enough battery life to make it through a full day, but usually it will die in the evening before I go to bed and put it on charge.
Recently I got a message, "Charging current is not enough for device power consumption. Please connect your AC adapter." Strange thing, though, it WAS connected to my AC charger. I get the same message with both of my chargers.
Battery will not charge, but has just enough power to keep the phone running as long as there is charge already in the battery. So the battery is almost dead, I put it on the charger all night long, get up in the morning and take it off, and then it beeps extra low battery! and then dies shortly after.
The only way I can get it to work is to leave the phone powered off for a long period of time and charge it then. Doesn't always work though. works if I take out the battery and charge it all by itself on a USB phone battery charger.
Sounds like the problem is somewhere in the phone, not with the chargers. Why would both of them do the same thing?
Please help.
does it do the same thing when plugged in and charging via USB??
could be a bad battery...
from old phones i had previous to my magic it sometimes helped to clean the contacts on the battery and charging pins on the phone..
I'll check that...
BTW, if I am plugged into an AC adapter, is it supposed to stay on even if I remove the battery?
NOPE! same message. Been charging all day now and only shows just over half charge on the battery. Most of this is from the hour or so that I had the battery out and charging on its own.

help

so i was using my phone like normal then all of a sudden it turned off. now evey time i try to turn it on it just turns itself off when it gets to the tmbile screen.... what do i do.
check for bent battery pins, if not that, take out the battery, plug in usb cable on wall charger not pc, and then insert the battery. it should try to charge without trying to start the phone. Let it charge for a few hours.
ok got it to turn on. but when i charge it the battery doesnt take a charge. i have the symbol and light but it isnt going up. as soon as i pull the cable it turns off. i think it might be the battery or a crappy charger. it isnt the stock one. also before this happened the charger would take forever to charge. on my buddies charger it would take about an hour for a full charge.... this is frustrating
ah yea, cheap charger, ive read where they seem to cause dodgy batteries. Does the charge light flash orange and green?
no steady orange
In my experience with HTC products, you HAVE to use either the stock charger or one that puts out 1 amp of current. Most 3rd part chargers put out like 500mA which is enough to charge the battery, just terrible slowly which reduces its overall life. Its just like if you exclusively use a USB port on your PC to charge your phone, it takes forever, and it will decrease battery life.

[Q] Recharging time using provided charger

Dear all,
I noticed today that it took 3 hours to recharge from 15% back to 100% using the standard provided charger (it is rated at 1.2 A). The phone was on standby the whole time, all radios except HSPA were turned off (wifi, blue tooth, GPS,... off), no special background apps running. Do you observe something similar? Would it work better with wireless charging?
Best regards.
Well the battery is rather large so longer charge times are expected but my battery charges up relatively quick...usually about an hour to go from 15-30% to 100%
Sounds like it was in USB charging mode for some reason. Plug it into the charger, go to Settings -> Battery and see what is says about charging (AC vs. USB).
Ajfink said:
Sounds like it was in USB charging mode for some reason. Plug it into the charger, go to Settings -> Battery and see what is says about charging (AC vs. USB).
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Click to collapse
Thanks guys for the info, I'll dig further into this.

How do you know fast charging is working?

I have fast charging enabled. I forgot to charge my phone last night and put it on the adaptive fast charger this morning at 0809. It was at 3% when it started. It's 0958, and it's at 22%. The phone has been power on during this time, but it should be faster than this. The setting for fast charging is checked.
Is there an indicator letting you know fast charging is engaged? I thought he gave a notification when fast charging is on. I know it worked once, and I saw one.
That strange
It only take 30 mins to charge 50 percent
Make sure you turn off all service and turn on power saving or shut down your phone
When I plug my note 4 in to charge a notification shows saying fast charge mode enabled (or something along those lines)
And it appears to charge really quick, I can't be exact on time, but my fine was down to 15% last night before I put it on charge, must have been about 15 mins and it was about 35%
Once I think it charged 20% to full in about 50 mins
martytarty said:
When I plug my note 4 in to charge a notification shows saying fast charge mode enabled (or something along those lines)
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Click to collapse
That's what I thought. I thought I was imagining things when it didn't appear or maybe it only appears upon first use. I even thought maybe using Nova was some how suppressing the message.
Given you response, I thought maybe there is something wrong with the power in the computer room, so I took it to the kitchen. Then, the status message showed saying fast charging is on. Weird. So, I went back to the computer room and plugged it in. Now the message is starting to appear.
I guess the adapter glitched and was stuck in lower power mode. Not sure. Any way. Thanks for confirming the status message. It seems to be working now.
While my charger seems to work fine. I have noticed it wont pull more than 1000 ma at any given time. I was under the impression that when my battery is below 50% i should see fast charging at a rate over 1000 ma? I get 1000 ma off any decent tablet type charger, including over 50%. Yes fast charging is enabled and detected when the phone is connected to the fast charger.
Anyone else seeing this? Using "Galaxy Charging Rate lite" from the app store. Is there a better app that you guys like?
UPDATE: on a 2A 5v charger I will pull down average 1800ma when the screen is off, then it drops down as the screen is off. So, more testing is needed on the fast charger, I think I need a application that will log the ma draw at intervals to see what it pulls during "fast charge mode" with battery < 50% on the samsung charger.
Fast charging mode only works with screen off!
Charging at 9 Volt and around 1000ma
With screen on the fast charging mode goes off an charging goes to normal mode at 5 Volt and up to 1800ma.
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I'm sure I read somewhere on XDA it also only works from 0 - 50%.
Going from my own experience, when I plug it in, I definitely see the "fast charging enabled" message appear in my notification bar.
However it's anything but fast. Mine has never charged faster than average speed that I have noticed, but then I rarely dip below 50% if I can help it, so that might be why.
Last night I put it on charge at 1am (at 59%), came back at 01:48 and it was on %93. Is that good? You tell me. It doesn't seem it. Perhaps my expectations are too high.
One thing I was always curious about is would it matter if you use an extension lead as opposed to plugging it directly into the mains. Not sure how much voltage it is able to draw though an extersion lead, but as must of them are supposed to be up to 240 volts, I'm guessing that wouldn't make a difference.
kamiller42 said:
I have fast charging enabled. I forgot to charge my phone last night and put it on the adaptive fast charger this morning at 0809. It was at 3% when it started. It's 0958, and it's at 22%. The phone has been power on during this time, but it should be faster than this. The setting for fast charging is checked.
Is there an indicator letting you know fast charging is engaged? I thought he gave a notification when fast charging is on. I know it worked once, and I saw one.
Click to expand...
Click to collapse
It says fast charging and there is this little lighting bolt indicating fast charging yes it works better with screen off
buell47 said:
Fast charging mode only works with screen off!
Charging at 9 Volt and around 1000ma
With screen on the fast charging mode goes off an charging goes to normal mode at 5 Volt and up to 1800ma.
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Are you sure, I go from 5% to full in around 80 minutes with device on, is yours faster switched off?
On my Verizon Note 4 phone running Android 5.0.1, if I go to settings/battery, there is a setting for Fast Charging which you can enable if it is not already. Just below that, there is a status message that when the phone is plugged in will tell you what kind of charging you are doing. I just plugged it in with an Adaptive Charging unit and the status said "97% Adaptive Charging" indicating my phone was 97% charged and was charging using the adaptive (fast) charging. When I unplugged it and plugged it back in with a non-adaptive charger, the status changed to say "97% - Charging (AC)" indicating it was charging but not "fast" charging.
prophet42 said:
I'm sure I read somewhere on XDA it also only works from 0 - 50%.
Going from my own experience, when I plug it in, I definitely see the "fast charging enabled" message appear in my notification bar.
However it's anything but fast. Mine has never charged faster than average speed that I have noticed, but then I rarely dip below 50% if I can help it, so that might be why.
Last night I put it on charge at 1am (at 59%), came back at 01:48 and it was on %93. Is that good? You tell me. It doesn't seem it. Perhaps my expectations are too high.
One thing I was always curious about is would it matter if you use an extension lead as opposed to plugging it directly into the mains. Not sure how much voltage it is able to draw though an extersion lead, but as must of them are supposed to be up to 240 volts, I'm guessing that wouldn't make a difference.
Click to expand...
Click to collapse
If your USB adapter is plugged into an AC outlet or a long AC extension cord that is plugged into the AC outlet it makes no difference. However if you were talking about a USB extension that plugs into the adapter and extend the length of the DC USB cord that will make a major difference.

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