Slower charge with 2A charger than car charger. - T-Mobile Samsung Galaxy Note II

So for the past 2 days my Note 2 has been charging extremely slow with the factory charger. I get maybe a 5-6% charge per hour when plugged in at home but on my way to school this morning, I plugged it into my car charger and it charged 7% in about 25 minutes. Is it my charger or my phone? When I noticed slow charge I rebooted phone and left it over night without opening anything

eurohomie said:
So for the past 2 days my Note 2 has been charging extremely slow with the factory charger. I get maybe a 5-6% charge per hour when plugged in at home but on my way to school this morning, I plugged it into my car charger and it charged 7% in about 25 minutes. Is it my charger or my phone? When I noticed slow charge I rebooted phone and left it over night without opening anything
Click to expand...
Click to collapse
Well, since I purchased my Note 2, I kept facing this slow charging problem. Now what is slow charging some of you will ask? Well, it's simple. The device is taking more than normal time for charging. Now how do you know the default/should be rate for charging? Simple again. The AC adapter clearly says output rate as 2000 mA or 2.0 A. So with that calculation Note 2's monstrous 3100 mAh should be fully charged with 2 hours. But as we've seen steady 2.0A is not the output case in some/many scenario, so add another 30 mins to it. So whatever it is, from 0-100%, the device shouldn't take more than 2 hours 30 minutes.
And for me, it was taking around 5 hours! Sometimes 4 hours 30 minutes, and if it's very fast then 4 hours. Well I was never gonna wait 4 damn hours before going to my office and irritate myself, and I don't have the habit of charging overnight, unless I absolutely need it.
So I kept calling my retailer, asked for replacement, and they did, well, you won't believe, they replaced three times actually, so I had three different Note 2, with three different charger. Well, each of them acted absolutely fine at first 3-4 charge, then the problem was back again and again. I in fact turned off the device and put it into trash once.
Then I thought let's try some different USB cables, I tried my friend's Galaxy Ace cable. Charging current kept fluctuating between 1000-1200 mA. Which was better than those faulty stock cables, which provided steady 900 mA. Sometimes it even was detecting the AC current as USB, which would provide a mere 460 mA and would take God knows how long! Then I found my piece. I went to my retailer, frustrated and angry, asked them to give me the thickest and shortest possible cable, and they provide me one from a Samsung phone's box, but I can't recall which device was that! And then I sat there for half an hour, kept plugging and unplugging, and the current rate was rock steady at 1800 mA. I took it, paid just 10$ and came back.
Since then I have charged my phone almost 10 times and the current rate never went below 1800 mA / 1.8 A.
This is the cable I am using, do notice that it has 5 pin set up against stock cable's 4 pi, if that matters in any way, and it's about 10% thicker than the stock cable and also about 9" shorter.
And how will you monitor the charging current, three ways are there,
1- Battery Monitor (yet I don't know how to exactly use it)
2- If you are rooted (which is a must anyway), then just go to, /sys/class/power_supply/battery/current_avg
3- Use the app from the link below. It basically reads the current value just exactly as above but it saves the time to go into that file every time. A big thanks to Deadvirus.
Galaxy Charging Current application's apk can be found here:
http://forum.xda-developers.com/show...p?p=36124435)?
Play Store link: (Paid)
https://play.google.com/store/apps/d...Z2N1cnJlbnQiXQ..

Link not working. Thank You
hellDr0id said:
And how will you monitor the charging current, three ways are there,
1- Battery Monitor (yet I don't know how to exactly use it)
2- If you are rooted (which is a must anyway), then just go to, /sys/class/power_supply/battery/current_avg
3- Use the app from the link below. It basically reads the current value just exactly as above but it saves the time to go into that file every time. A big thanks to Deadvirus.
Galaxy Charging Current application's apk can be found here:
http://forum.xda-developers.com/show...p?p=36124435)?
Play Store link: (Paid)
https://play.google.com/store/apps/d...Z2N1cnJlbnQiXQ..
Click to expand...
Click to collapse

Related

[BATT] How long does it take yours to charge?

It takes mine ages. I can leave it plugged in for hours and it only charges a bit. Right now Battery Monitor widget estimates 8 hours on "AC" and 12 hours on "USB" for a 100% charge - 3/4 hours from 64%. That's slow, no?
I only get +2-400mA (341mA right now, sometimes less, or more) when plugged into my 5v-1A AC charger. How about you guys?
Any one else got charge times from a program like Battery Monitor Widget?
Takes about 4 hours from 1% to 100%
my HOX is charging.. i plug it at 9% 1 hour and 40 minute ago.. its 71% now..
Supaiku said:
It takes mine ages. I can leave it plugged in for hours and it only charges a bit. Right now Battery Monitor widget estimates 8 hours on "AC" and 12 hours on "USB" for a 100% charge - 3/4 hours from 64%. That's slow, no?
I only get +2-400mA (341mA right now, sometimes less, or more) when plugged into my 5v-1A AC charger. How about you guys?
Any one else got charge times from a program like Battery Monitor Widget?
Click to expand...
Click to collapse
That's very very slow. Check your cables, are they frayed? Cos I'm currently using the cable that came with my Desire Z and it's starting to fray pretty bad, and I'm only getting about 300-400mAh charge in. Used to charge at around 750+. I switched USB Cables (same charger, just different cables) and my charge rate jumped back to 750. Do note that charge rate slows down the closer it gets to 100%.
Mine took almost 3hrs for 0 to 100% charge.
3-4 hours from 5% to 100%
On the USB in college I get 20% is 2 hours lol on charger about 3 hours.
Sent from my HTC One X using xda premium
That's weird then. Maybe I should buy a new cable. Do most of you get 700mA+ readings when charging?
The cable is very new, but I did get it from a shady seller - maybe it has a problem. I will get a new USB cable this evening.
It COULD be the problem? That's only from my own testing though. Try it with a friend's cable or something. Nokia and Samsung phones use the same Micro USB to charge.
Mine will go from 2% to 100% in 3 hour 5 min with an USB charger of 1.5A output.
jenglish7 said:
Mine will go from 2% to 100% in 3 hour 5 min with an USB charger of 1.5A output.
Click to expand...
Click to collapse
Unfortunately the HOX is limited to a 1A input charge /:
i'm at my wits end, i bought an HTC one X today, and plugged it to the charger cos it was 7% of energy, it's been off for 3 hours and i turn it on and it says 8%, i'm using the cable and the charger that came with the cellphone, what could i do?, i even got a message while running the setup procedure that the phone consumes more energy than what it receives via AC, what to do? i'm worried
mp3elv said:
i'm at my wits end, i bought an HTC one X today, and plugged it to the charger cos it was 7% of energy, it's been off for 3 hours and i turn it on and it says 8%, i'm using the cable and the charger that came with the cellphone, what could i do?, i even got a message while running the setup procedure that the phone consumes more energy than what it receives via AC, what to do? i'm worried
Click to expand...
Click to collapse
You've got a misbehaving app somewhere. Restart your phone and try again.
with the original charger and cable, it takes me roughly 3 hrs to fully charge my one X from 10%~ to 100%
with the cheap cable I bought and the Iphone charger, it takes me 4 hrs to charge from 9% to 90% ~ about 5 hrs to fully charge ~
I don't use my laptop's usb to charge, and I believe it will take much longer ~
With the official HTC cable that came in the box its taken me 3 hours to charge about 40%. Please someone tell me this is faulty.
Also the battery has never lasted more than 2hours 20 mins on screen with medium/heavy usage. and no more than 1 hour 30 with heavy usage (HD Video/streaming)
ALso when i unplug the charger at 100% it drops down to 90% within 10 minutes and then continues to plummet. I got around 6hours off screen time with music playing before it died.
Anyone have this issue?
mp3elv said:
i'm at my wits end, i bought an HTC one X today, and plugged it to the charger cos it was 7% of energy, it's been off for 3 hours and i turn it on and it says 8%, i'm using the cable and the charger that came with the cellphone, what could i do?, i even got a message while running the setup procedure that the phone consumes more energy than what it receives via AC, what to do? i'm worried
Click to expand...
Click to collapse
The same thing happened to me today. I've noticed charging from a computer's USB gives a higher charge amperage.
I just ordered a 2A USB charger, but I also found that if I power off the phone and charge it, it charges very quickly.
ahmadcentral said:
With the official HTC cable that came in the box its taken me 3 hours to charge about 40%. Please someone tell me this is faulty.
Also the battery has never lasted more than 2hours 20 mins on screen with medium/heavy usage. and no more than 1 hour 30 with heavy usage (HD Video/streaming)
ALso when i unplug the charger at 100% it drops down to 90% within 10 minutes and then continues to plummet. I got around 6hours off screen time with music playing before it died.
Anyone have this issue?
Click to expand...
Click to collapse
That sounds like a serious problem. I would send it back. Although, you should poke around and see what's consuming all the energy.
Charging times without looking at the battery monitoring application reporting where energy is spent does not help much to understand where the problem is.
If the phone is really idle with good GSM coverage, no particular GSM activity and Wifi switched off, then more than 2 or 3 hours either shows that the charger isn't powerful enough (could happen with a car cigarette-lighter->USB charger or any charger that delivers less than 1A/H), or a faulty charger or battery.
If one has good charging times when the phone is switched off, then the problem is more likely related to the software running in the phone, fiddling with the phone while it's charging (keeping the screen on) or because of RF activity (GSM, Wifi).
So first switch the phone off, charge it at 100%, look at the time it took and if it's okay then look at the battery monitoring app to understand where energy is spent when the HOX is turned on...
what apps or widget do u guys use to see how much current(mA) is being charge to the phone?
hi all
mine charges from 25% to full in a little over 2 hrs
thats with the htc charger that came with it an the usb supplied by htc .... i have other leads that i used with my old deisre (non htc) and i gfet a very slow charge time .... i have got from ebay som high quality leads (if 2.99 post free is high quality) and they charge quickly so id say the onex is quite fussy over what leads you use to charge it
mind you im loving the phone have rooted mine and have the leedriod rom which is awsome
tony

Long charging duration. What should I do? Confused! Please advice.

Guys this issue is annoying me. My device is having some charging problems. I have measured the charging time for last two charges, and its taking 3 hours 40 mins for 10% to 100%, and 4 hours from 0% to 100%. Where most people are saying it takes around 3 hours, from a complete drain to full 100%.
So have any of you guys ever measured the actual time of charging? A lots of comments I see say around this or around that, or from 2 hours to 3 hours, well that's not what I need. If anyone has measured the time then please post here. I'm thinking about going to SC, but I don't wanna go there until I'm totally sure that there is a problem.
PS: I'm talking about Stock charger, (2A) plugged in AC power source. And device should be on, not off.
Btw- There should be a technical answer to this, the charging current is 2A and the battery is 3100 mAh, so how could I do the math?
Thanks in advance.
Sent from my GT-N7100
I don't know the math stuff but why don't you try calibrating the battery - worth trying !
Knowing that info is only half the truth. How the phone charges the battery and how much energy your phone uses during the charge matters too.
Sent from my GT-N7100 using Tapatalk 2
The time taken to charge is a pretty simple mathematical formula. But the rest of the calculation is complicated.
If you phone is on, how bright is the screen, is the display on or off, are you on wifi or network data, are you syncing email every 15 minutes or every hour, are you using the phone to send messages during charge, have you got gmail, dropbox, facebook, instagram, whatsapp, etc etc etc all doing a sync at regular intervals during the charge?
All of those things will use up some of the charge as its going in, so the charger is fighting against you.
I've been charging off usb at work and struggled to gain 20% in 8 hours because of my usage pattern.
Theoretical time for charge is about 1:30 hrs. Reality, start and ending charge should slow down (for safety), heat slow downs, plus usage of phone as spoken above I guess it could take up to 3 hrs.
It's not great to do a full charge regularly. I tend to keep mine between 40-90% for maximum life cycle of battery.
Perhaps try resetting battery stats? Try a different 2a charger?
Sent from my GT-N7105 using Tapatalk 2
wisewood said:
The time taken to charge is a pretty simple mathematical formula. But the rest of the calculation is complicated.
If you phone is on, how bright is the screen, is the display on or off, are you on wifi or network data, are you syncing email every 15 minutes or every hour, are you using the phone to send messages during charge, have you got gmail, dropbox, facebook, instagram, whatsapp, etc etc etc all doing a sync at regular intervals during the charge?
All of those things will use up some of the charge as its going in, so the charger is fighting against you.
I've been charging off usb at work and struggled to gain 20% in 8 hours because of my usage pattern.
Click to expand...
Click to collapse
I was testing how long it takes to charge, so I didn't even touch the phone while it was charging.
JLneonhug said:
Theoretical time for charge is about 1:30 hrs. Reality, start and ending charge should slow down (for safety), heat slow downs, plus usage of phone as spoken above I guess it could take up to 3 hrs.
It's not great to do a full charge regularly. I tend to keep mine between 40-90% for maximum life cycle of battery.
Perhaps try resetting battery stats? Try a different 2a charger?
Sent from my GT-N7105 using Tapatalk 2
Click to expand...
Click to collapse
1:30 hours? Could you kindly explain how?
And I've wiped my device fully, also reseted battery stats.
One thing I'd to next is, I'll turn the device off and see how long it takes then.
Sent from my GT-N7100
jujuburi said:
Guys this issue is annoying me. My device is having some charging problems. I have measured the charging time for last two charges, and its taking 3 hours 40 mins for 10% to 100%, and 4 hours from 0% to 100%. Where most people are saying it takes around 3 hours, from a complete drain to full 100%.
So have any of you guys ever measured the actual time of charging? A lots of comments I see say around this or around that, or from 2 hours to 3 hours, well that's not what I need. If anyone has measured the time then please post here. I'm thinking about going to SC, but I don't wanna go there until I'm totally sure that there is a problem.
PS: I'm talking about Stock charger, (2A) plugged in AC power source. And device should be on, not off.
Btw- There should be a technical answer to this, the charging current is 2A and the battery is 3100 mAh, so how could I do the math?
Thanks in advance.
Sent from my GT-N7100
Click to expand...
Click to collapse
Mine takes 2.5 hrs to charge from 10% to 100% with phone on using stock wall charger and cable (when charged continuosly with no activity on phone). It charged from 1% to 96% in 2.5 hrs with phone switched off (switched it on exactly after 2.5 hrs to check). But, usually i avoid charging my phones to full 100% (also always charge it when at 10%).
Dpk1 said:
Mine takes 2.5 hrs to charge from 10% to 100% with phone on using stock wall charger and cable (when charged continuosly with no activity on phone). It charged from 1% to 96% in 2.5 hrs with phone switched off (switched it on exactly after 2.5 hrs to check). But, usually i avoid charging my phones to full 100% (also always charge it when at 10%).
Click to expand...
Click to collapse
Try with another note 2 charger first. The thing with these chargers is they will behave erratically when there is voltage fluctuation or if you use in a train and other cases. So go to SC and tell them its taking almost double time for me to get charged. They will replace the charger as well the cable. My cousin has the same problem with s3. He got it replaced by the SC.
Sent from my GT-N7100 using Tapatalk 2
Thanks Chaitanya. But the SC guys are so stupid here. First thing they do always are to take the phone in their custody and deal with it badly. Still I will ask them to replace the charger and check.
Some of us have noted that if you let the screen time out and not manually shut screen off after connecting the charger. ..The charging is faster. . If you manually shut off the screen. .. The charging is slow.... It is weird but don't know why. .it definitely is happening
handwritten from my note 2 (N7100)
Mine takes about 3 hours to charge fully from 15 %
Sent from my GT-N7100 using xda app-developers app
Op: I said theoretical it will take 1:30.. Realistically it should slow down during stages due to safety reasons.
Mine took probably 3 hours the other day I ran it down, but this was combination of using 1a and 2a charger.
I think on the note 2 it doesn't ramp up power till it gets to 20-30%. Took a while to get there from 2%. If only battery widget was working on the note 2..then I could confirm.
Sent from my GT-N7105 using Tapatalk 2
Are you using the charger that came with Note2 ? I was using my old blackberry charger and it took for ever to charge the phone.
The output of the Note2's charger is more than twice the output of my blackberry charger.
^ Yeah, of course I am using the stock charger that came with Note 2! I'd not create this topic if I had used another charger.
Anyway, after a long week in Service Center now my phone is back, they provided me a new charging adapter (not the cable) and I was very happy because I thought everything will be smooth and like before but guess what? No improvement. It's still taking long! I just measured it for 30 mins exactly, it went from 70 to 83%, i.e 13%, where it should be 24% as stated in this thread,
http://forum.xda-developers.com/showpost.php?p=33585646&postcount=31
Now I am really angry. I will try with another Note 2 USB cable first, if that fails, there is something wrong with the device, I guess?
jujuburi said:
^ Yeah, of course I am using the stock charger that came with Note 2! I'd not create this topic if I had used another charger.
Anyway, after a long week in Service Center now my phone is back, they provided me a new charging adapter (not the cable) and I was very happy because I thought everything will be smooth and like before but guess what? No improvement. It's still taking long! I just measured it for 30 mins exactly, it went from 70 to 83%, i.e 13%, where it should be 24% as stated in this thread,
http://forum.xda-developers.com/showpost.php?p=33585646&postcount=31
Now I am really angry. I will try with another Note 2 USB cable first, if that fails, there is something wrong with the device, I guess?
Click to expand...
Click to collapse
I really don't think it's your device or your battery for that matter. I have a question as well (sorry to hijack...). When you were charging it for 30 mins, were you using it? Was the screen off or the phone totally turned off? I noticed one night that I had an email notification and the phone did not charge because the notification LED was on all night while I slept and it was plugged into my 1A Samsung charger from my original Note. I have yet to check if the charging disconnects itself if the LED comes on. I don't even know if the phone charges at all if the screen is on either. Can anyone confirm? I guess I'll try it out tonight! The battery last forever I got to admit, perhaps most of the time I'm slow charging it at 1A max with the original Note's charger? I guess it does the battery some good
Thanks a bunch!
No pal I am not using the device while charging (because I am testing and measuring the times, that's why I restrain myself from touching it), and it's on, not off.
Anyway, yesterday I went to a friend's home and found he has a Samsung ACE and has same USB port like Note's and I was carrying the charging adapter, so I took that Ace's cable and plugged in to my Note's adapter and let it charge for an hour, and I was amazed and happy to see that it increased 38% in 60 mins. Well this tells me that the USB cable of my Note 2 is gone to heaven.
And oh, if you charge and use the device at the same time it will charge pretty fast even then too. I can confirm this when I first got the device, always was using it and charging, and I was surprised to even then how fast it was charging.
I (and many other users) have similar problems with Galaxy S3. I've made an app that shows the actual charging current: http://forum.xda-developers.com/showthread.php?t=2076078
I'm not sure if it works on the Note 2, but it is worth a try.
Please check if your device is charging at the optimal charging current (I think it is 2000mA for the Note 2 charger, instead of 1000mA as pointed in the SGS3 thread).

[Q] Battery takes long to charge

I just got a t-mobile version of the S4 and I'm loving it, but I noticed it is very very slow to charge.
Aside from light to medium usage i didn't touch it much between last night and today. I had it plugged in and charging via USB, but it maybe charged about 40-45% in 6+ hours. My old phone (LG G2X) never took this long to charge.
More Info;
This was using the Stock T-mobile Rom
I have since rooted and installed CM10 nightly on the phone, It appears to suffer the same issue
Between 9:27 to 10:00 it went from 67% to %74, My LG went from %39 -%56 in about 20 minutes. By those quick number it will take 7 hours to charge the S4 while only 3 to fully charge the g2x
Is this normal? is there anything i can do to fix/test or alleviate this?
icewolf293 said:
I had it plugged in and charging via USB,
Is this normal? is there anything i can do to fix/test or alleviate this?
Click to expand...
Click to collapse
The question for you is the source? If you plugged it into your compy, it will take forever as standard compy USB ports (USB 2.0) provide only about 500 mA. The stock S4 charger is 2 Amps.
The fix, plug the phone into the wall using your stock charger. If it is still slow, it is probably your battery. Good luck.
Make sure to use the charger that it came with. Ever since I started using the stock charger my battery charges fast. Also it could be your plug so test it with another just in case.
Sent from my SGH-M919 using XDA Premium HD app
Yup it was the charger, I have chargers pretty much where ever i go so i just used those. With the stock one it works great but i ran into another issue. I plugged it in and it was taking a really long time to charge with the stock charger, something like 3% in 30 minutes. I had to unplug and plug in the cable again and it charged normally.
Is this something I should worry about?
It could be possible that the cable was not properly seated in the phone, or the charger end was not properly seated in the wall cube. I wouldn't lose sleep over it unless it happens often. Could be a phone problem, but sounds like a one off to me.
Yea my lady like to use my charger with her HTC phone because it "charges faster". The S4 stock charger has the highest amp rating and provides juice at the highest rate to any device. :good:
icewolf293 said:
I just got a t-mobile version of the S4 and I'm loving it, but I noticed it is very very slow to charge.
Aside from light to medium usage i didn't touch it much between last night and today. I had it plugged in and charging via USB, but it maybe charged about 40-45% in 6+ hours. My old phone (LG G2X) never took this long to charge.
More Info;
This was using the Stock T-mobile Rom
I have since rooted and installed CM10 nightly on the phone, It appears to suffer the same issue
Between 9:27 to 10:00 it went from 67% to %74, My LG went from %39 -%56 in about 20 minutes. By those quick number it will take 7 hours to charge the S4 while only 3 to fully charge the g2x
Is this normal? is there anything i can do to fix/test or alleviate this?
Click to expand...
Click to collapse
There are a few factors here.....
1. The charger itself. The original Samsung is a 2A charger. If you use a different one (most are only 1A) it will take twice as long to charge.
2. The USB Cable. Believe it or not, not all cables are the same. With the standard charger and cable you will be able to charge @ 1900mA. Less then 2 hours to fully charge a completely dead battery. But.... plugging some USB cables into the standard charger will limit the charge down to just 600mA.... taking 3x_ longer to charge.
3. The other is the kernel. If you're using a newer custom kernel Samsung has limited to a max of 1200mA with the screen on & full 1900mA with the screen off.
Lastly, you can download an app on the playstore called Galaxy Charging Current. This will show you the charging rate should you want to test your setup.
dannyben said:
There are a few factors here.....
2. The USB Cable. Believe it or not, not all cables are the same. With the standard charger and cable you will be able to charge @ 1900mA. Less then 2 hours to fully charge a completely dead battery. But.... plugging some USB cables into the standard charger will limit the charge down to just 600mA.... taking 3x_ longer to charge..
Lastly, you can download an app on the playstore called Galaxy Charging Current. This will show you the charging rate should you want to test your setup.
Click to expand...
Click to collapse
This man speaks the truth. I use CurrentWidget and set to manual update. Whenever I'm testing cables/chargers, I plug in a known good cable (charges at 1900) to see what the charger is putting out. I do the same with a known good charger (2A - iPad and S4) and test the cables

Slow Charging Issues

For the past few days, I've noticed very slow charging on my Pixel even if it says "Charging Rapidly". However it would say it will take around 3 hours to fully charge. When fast charging works, usually clocks at 1 hour and 30 minutes.
I really don't know what can be causing the issue. It's the original charger, and cable. Normally removing the cable and putting it again would fix the issue but it's becoming a common thing for it to take 3 hours.
I remember a similar issue on my Nexus 9 and cleaning the cache would completely fix the issue, but the Pixel XL is missing the Wipe Cache option in the recovery.
Any similar experiences?
On the OEM included charger?
Nitemare3219 said:
On the OEM included charger?
Click to expand...
Click to collapse
Yup.
Could try a factory reset.. probably the only software related solution. I can't remember, but Chainfire may have said that the cache.img was one of the things that got removed in 7.1 so I don't even know if you could wipe it if you wanted to. You could also hit up Google support... maybe they'll send you a new charger to try. Make sure you're using the OEM cable too, at least for now, until you figure it out.
I had this exact issue with mine, factory reset / charging in safe mode didn't work.
Turned out to be a faulty usb cable but Google insisted on replacing the entire package (handset etc) Replacement works fine
FSOP said:
I had this exact issue with mine, factory reset / charging in safe mode didn't work.
Turned out to be a faulty usb cable but Google insisted on replacing the entire package (handset etc) Replacement works fine
Click to expand...
Click to collapse
Well, thanks for the heads up! What sucks though is that it's type C to type C, I have some Type C to regular USB, I guess I'd have to buy one.
elfrisi said:
Well, thanks for the heads up! What sucks though is that it's type C to type C, I have some Type C to regular USB, I guess I'd have to buy one.
Click to expand...
Click to collapse
If it makes you feel any better, Google exchange process is amazing.
Raised the return on mine about 4pm and the replacement was on my desk 9am the next morning, they also give you 14 days to send your old one back so you're it without a phone.
I use ampere to see what the charging rate is and I don't feel like the fast charge is that fast.... My 6p charged at a faster rate and my pixel charges at a faster rate using my Choetech smart charger. I'm going to have to drain the battery and see how long it takes to fully charge with the stock charger
Smallsmx3 said:
I use ampere to see what the charging rate is and I don't feel like the fast charge is that fast.... My 6p charged at a faster rate and my pixel charges at a faster rate using my Choetech smart charger. I'm going to have to drain the battery and see how long it takes to fully charge with the stock charger
Click to expand...
Click to collapse
When I checked mine it was charging at something like 2600-2800 but i only watched it for a few minutes, might have gone higher
FSOP said:
If it makes you feel any better, Google exchange process is amazing.
Raised the return on mine about 4pm and the replacement was on my desk 9am the next morning, they also give you 14 days to send your old one back so you're it without a phone.
Click to expand...
Click to collapse
Yeah but they will most likely put a $769 hold on my card... :S
Some phones ie lg v10 do not "fast charge" while screen is on (while youre looking at it) to avoid overheating. Ampere cant show max charging rate. I use a usb sleeve (usb doctor) that displays that info or turn on notification display
EDIT: Supposedly Pixel do not fast charge while in use either.
clockcycle said:
Some phones ie lg v10 do not "fast charge" while screen is on (while youre looking at it) to avoid overheating. Ampere cant show max charging rate. I use a usb sleeve (usb doctor) that displays that info or turn on notification display
EDIT: Supposedly Pixel do not fast charge while in use either.
Click to expand...
Click to collapse
I think I can confirm this. Last night mine showed 27 minutes to charge from about 50% but after keeping the screen awake for about 30 seconds, it went up to 51 minutes.
I also find my Pixel charges very slow as well even though it says Charging Rapidly (OEM charger, cable). The GSM Arena review said they went from 0% to 46% in 30 minutes, I get more like half of that at most. I used Ampere and it said i was only charging at 710 mA.....
trace1er said:
I also find my Pixel charges very slow as well even though it says Charging Rapidly (OEM charger, cable). The GSM Arena review said they went from 0% to 46% in 30 minutes, I get more like half of that at most. I used Ampere and it said i was only charging at 710 mA.....
Click to expand...
Click to collapse
If you charge it from almost empty it charges very quick, but slows down once it gets nearer to full
FSOP said:
If you charge it from almost empty it charges very quick, but slows down once it gets nearer to full
Click to expand...
Click to collapse
Yes i started charging my phone when it was 4%, and when i looked at it about 20 minutes later it was only at 16%. I think it took about 3 hours to fully charge. The only modification I've made to the phone is unlock the Verizon bootloader and flash the P software (which was subsequently updated to V). I'm seriously wondering if the charger or cable is defective.
trace1er said:
Yes i started charging my phone when it was 4%, and when i looked at it about 20 minutes later it was only at 16%. I think it took about 3 hours to fully charge. The only modification I've made to the phone is unlock the Verizon bootloader and flash the P software (which was subsequently updated to V). I'm seriously wondering if the charger or cable is defective.
Click to expand...
Click to collapse
Potentially, mine was and I had to get the whole thing replaced

Question S21 FE, very slow charging both wired and wireless

Hi all!
I have a 2 weeks old S21 FE, and a brand new Samsung original 25W PD adapter + original USB-C to USB-C cable. I am very disappointed with the charging speed, both for wired and wireless charging. I have obviously enabled fast charge & fast wireless charge in settings. The cable, socket and so on is 100% fine. The phone's diagnosis tool reports that all is OK.
WIRED: At 27% battery, estimated 62 minutes left to fully charged. At 55% battery, estimated 45 minutes left to fully charged. At 87% battery, estimated 26 minutes left to fully charged.
WIRELESS, with a 15 W charger+same adapter/cable as above: At 13% battery, estimated 3 hours and 50 minutes(!!) left to fully charged. At 55% battery, estimated 2 hours left to fully charged. At 72% battery, estimated 73 minutes left to fully charged.
Is this really normal?
The Samsung chat person suggested:
1. Charge/discharge the phone 2-3 times after it's new, to "stabilize the battery". I guess I haven't fully charged/discharged (100%/0%) 2-3 times. However, I do not really believe it's gonna work.
2. Reset all settings. I'd rather not - as I will lose some hours of customizing-work. I do not believe this will do it, anyway.
3. "We have a fast charge adapter on the website, it's supposed to work very well". Obviously, and not surprisingly, the ***** haven't read what I wrote.
4. Activate Secure Mode and test again. Did it, doesn't have any effect.
5. And here it comes, the suggestion they really like you to try, but the one that you don't wanna try after customizing and downloading and getting stuff just as you want it: reset to factory settings!!! The favorite customer service way to "help". Obviously, I'd rather not.
So.... Any owners of this phone (or similar)? What's your charging experience? Does it "stabilize" after som charge/discharge?
Thank you so much, I appreciate it. Great phone, apart from charging speed....
Can confirm minutes for wired, same here. Samsung is not the best in case of charging speed
Put in airplane mode or turn off for better speed. Once phone is hot it stops charging completely, they have huge battery protection I guess. It may also limit the charging speed by default
Thank you. It seems strange though, because I have a Samsung A52 phone for work. It is a quite basic phone, but charges incredibly fast. I have tried the A52 supplied charger on the S21 FE, but still the same slow speed... The A52 charges 0-100 in much less than an hour, if I remember correctly.
Disappointed!
Not sure, if that helps, but you might check the app called AMPERE.
I will put the Google Play link below.
Every time I am troubleshooting the charging on any Android device I use this app.
It will basically tell you with what current is consumed by the device in real time.
My S21FE (SD888) can take max 3000 mAh (3 amps).
I would say it's not bad.
It gets anyways too hot to my opinion with the 3 amps , so I am charging only with max 1300 mAh ...
So install the Ampere app on the A52 and also on the S21 FE and let's see if the numbers will be the same with the same power-brick and cable or not ...
AMPERE Google Play Link
epssen said:
Hi all!
I have a 2 weeks old S21 FE, and a brand new Samsung original 25W PD adapter + original USB-C to USB-C cable. I am very disappointed with the charging speed, both for wired and wireless charging. I have obviously enabled fast charge & fast wireless charge in settings. The cable, socket and so on is 100% fine. The phone's diagnosis tool reports that all is OK.
WIRED: At 27% battery, estimated 62 minutes left to fully charged. At 55% battery, estimated 45 minutes left to fully charged. At 87% battery, estimated 26 minutes left to fully charged.
WIRELESS, with a 15 W charger+same adapter/cable as above: At 13% battery, estimated 3 hours and 50 minutes(!!) left to fully charged. At 55% battery, estimated 2 hours left to fully charged. At 72% battery, estimated 73 minutes left to fully charged.
Is this really normal?
The Samsung chat person suggested:
1. Charge/discharge the phone 2-3 times after it's new, to "stabilize the battery". I guess I haven't fully charged/discharged (100%/0%) 2-3 times. However, I do not really believe it's gonna work.
2. Reset all settings. I'd rather not - as I will lose some hours of customizing-work. I do not believe this will do it, anyway.
3. "We have a fast charge adapter on the website, it's supposed to work very well". Obviously, and not surprisingly, the ***** haven't read what I wrote.
4. Activate Secure Mode and test again. Did it, doesn't have any effect.
5. And here it comes, the suggestion they really like you to try, but the one that you don't wanna try after customizing and downloading and getting stuff just as you want it: reset to factory settings!!! The favorite customer service way to "help". Obviously, I'd rather not.
So.... Any owners of this phone (or similar)? What's your charging experience? Does it "stabilize" after som charge/discharge?
Thank you so much, I appreciate it. Great phone, apart from charging speed....
Click to expand...
Click to collapse
So I had a similiar problem here.. My issue was I got a 'moisture is detected in my port' message. Therefore my phone would stop charging.. when the error finally went away Fast/Super fast charging also stopped working.. I took my phone to a Samsung authorised service centre near me ( Closest Samsung was about 2 hrs away) They fixed my phone within 3 days. Replaced my port and the cable between the motherboard and charging block.
Now my phone works 100%
It might be the same issue maybe not. But maybe try different cables and chargers as well.
Otherwise take your phone in for repairs. It should be still under warranty and would cost you nothing.
It seems like the s21fe has a lot of dud phones it looks like
androiduser12345678 said:
Not sure, if that helps, but you might check the app called AMPERE.
I will put the Google Play link below.
Every time I am troubleshooting the charging on any Android device I use this app.
It will basically tell you with what current is consumed by the device in real time.
My S21FE (SD888) can take max 3000 mAh (3 amps).
I would say it's not bad.
It gets anyways too hot to my opinion with the 3 amps , so I am charging only with max 1300 mAh ...
So install the Ampere app on the A52 and also on the S21 FE and let's see if the numbers will be the same with the same power-brick and cable or not ...
AMPERE Google Play Link
Click to expand...
Click to collapse
Can confirm this. However after my repair I got over 3000mAh charge.
Before the repair it only did 800mAh
Mine is also faulty. Battery life is terrible and charging became very slow.
Using samsung 25w sfc charger.
Sending it to repair tomorrow.
But i must note that in all cases you must try a factory reset. It can fix a lot of user issues as well as glitches. But in my case the problem is hardware based.
ish4d0w123 said:
Mine is also faulty. Battery life is terrible and charging became very slow.
Using samsung 25w sfc charger.
Sending it to repair tomorrow.
But i must note that in all cases you must try a factory reset. It can fix a lot of user issues as well as glitches. But in my case the problem is hardware based.
Click to expand...
Click to collapse
Seems like we get a lot of dud phones. I had same issue.. formatted my phone etc. I ended up taking it to samsung for repairs got it back and its fixed.. but phone isn't 100% as it was.. gets very laggy after a while..
Billabomb75 said:
Seems like we get a lot of dud phones. I had same issue.. formatted my phone etc. I ended up taking it to samsung for repairs got it back and its fixed.. but phone isn't 100% as it was.. gets very laggy after a while..
Click to expand...
Click to collapse
Yes, there is something wrong with this phone. Mine has severe overheating issues.
Try taking it out of the case, in case you use a case. Helps a lot with heat dissipation and this phone needs all the help you can give it during the summer.

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