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very slow charging from AC adaptor

hey guys, i was wondering if you've noticed that it takes the battery an extremely long time to charge to 100% through the AC adaptor.
i actually don't have a i9000, i'm on the US att variant captivate. i'm trying to figure out if this is a model specific problem (ie. just for us att users) or is it for all of the galaxy s phones.
while the galaxy s does have an extremely large battery, it shouldn't take 6 minutes to charge only 1% of battery. i've noticed that charging my captivate for 2 hours only nets a 40-50% charge, which is far lower than what i had previously experienced on my iphone and sony ericsson phones.
in my opinion, this is the biggest problem of my phone especially since i'm always on the go. i may have to switch phones since i always don't have the luxury of charging for 7-8 hours at a time.
thanks.

Yea the charge speed is very slow while the phone is turned ON.
- However when its turned off it charges really fast, like 30 min for full battery.

Kjeldmis said:
Yea the charge speed is very slow while the phone is turned ON.
- However when its turned off it charges really fast, like 30 min for full battery.
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Click to collapse
I guess I had the same issue, slow charging lateron when the battery fully drained it refused to charge and hence cannot start. I tried via usb cable when I panicked something went wrong so I hard reset my phone to see if it is some software issue. It happened once again phone cannot be switched on since it cannot recharge via adapter, so took it to the service center they tested it and told me that the problem is with the AC adapter.
Now the phone is with me, I am still monitoring it to see and confirm once again that charging via usb cable is not an issue.

[Q] Battery is charging very slowly, but there's no battery drain

Last week I've installed a new usb port for my S4, because the old one broke. I know you will most likely think I've connected it poorly or whatever, but I don't think so, because I've had the slow charging issue before that.
I've got a couple of chargers. A Xiaomi 10.400 mAh charger, the original samsung AC charger, my nexus 7 charger, a Chromecast charger and a generic one from some store. The Xiaomi charger used to charge my phone quite fast. While playing Clash of Clans, on middle-high brightness I would still get about 1% every 2 minutes or so. Same with the nexus 7 one.
Right now however, it's struggling to get charged. It seems like the battery is draining faster than it's charging. But I've recently rooted my phone and installed the 5.0 GPE version rom, and my battery life has never been better. Recently got to 12h with about 2-3h SOT and still 60% left, which made me really happy. But if I charge it and use it, I only get about 1% every 10-15 minutes. Which kinda sucks.. (Right now, my s4 is on 87% and according to the lockscreen prediction thingy, it takes 1h06min to get to 100, while not using the phone)
Has anyone seen this problem before or knows how to fix it?

Do you charge it at your PC/Laptop?
My phone also charged very slowly when connected to the PC.. This was on original firmware.
Now I'm using GPE ROM but I haven't charged it at a PC yet.
There are some options in the Googy Max settings regarding charging.
What if it's the battery?

GDReaper said:
Do you charge it at your PC/Laptop?
My phone also charged very slowly when connected to the PC.. This was on original firmware.
Now I'm using GPE ROM but I haven't charged it at a PC yet.
There are some options in the Googy Max settings regarding charging.
What if it's the battery?
Click to expand...
Click to collapse
Nope, I charge it using a wallplug.
I must say it seems like my Xiaomi battery is charging my phone faster today. This afternoon it did about 30% an hour or something.
Edit: What it seems to be doing is charge fast at lower % battery, and charge slow on higher %. Is this a setting of something, perhaps?

NickS4 said:
Nope, I charge it using a wallplug.
I must say it seems like my Xiaomi battery is charging my phone faster today. This afternoon it did about 30% an hour or something.
Edit: What it seems to be doing is charge fast at lower % battery, and charge slow on higher %. Is this a setting of something, perhaps?
Click to expand...
Click to collapse
I have an app called battery doctor which has 3 charging stages. From X% to 80% theres a fast charge, then from 80% to 100% it (supposedly) reduces the current to ensure a full charge (basically it charges slower from 80 to 100%). I don't know what difference there is in charging time in those 2 stages. But you say it happens on different roms so either you have recently installed an app like battery doctor or it's something else.
Have you tried charging the phone while it's turned off to see if it charges faster or same as before?

GDReaper said:
I have an app called battery doctor which has 3 charging stages. From X% to 80% theres a fast charge, then from 80% to 100% it (supposedly) reduces the current to ensure a full charge (basically it charges slower from 80 to 100%). I don't know what difference there is in charging time in those 2 stages. But you say it happens on different roms so either you have recently installed an app like battery doctor or it's something else.
Have you tried charging the phone while it's turned off to see if it charges faster or same as before?
Click to expand...
Click to collapse
The only apps with root acces I have are system tuner, titanium backup and adaway. I uninstalled System Tuner, will see if that helps. And the only other thing that could do it is Googy-Max Stweaks.
I just turned the setting Charge Control Switch from disabled to Substitute AC to USB and got 7 % in 14 min. I feel it's quite a bit faster now. Gonna check it out while having Clash of Clans running. If it's still charging at 1% every 5 minutes, ill be happy

Just tested it for a bit, and went from 45 to 60% in 22 minutes. So I'm happy again

Why is my Galaxy S7 charging so slowly

Today I bought a Galaxy S7 Edge from T-Mobile and it is taking forever to charge and discharges if your using it while it's charging. To charge it, I need to turn off the screen and it rises by 1% every 45 mins. When I run Ampere, it says 50mA. Is this normal? I though fast charging isn't supposed to take 40 hours with the screen off...
How much do people normally get when they run the Ampere app?

kirill2485 said:
Today I bought a Galaxy S7 Edge from T-Mobile and it is taking forever to charge and discharges if your using it while it's charging. To charge it, I need to turn off the screen and it rises by 1% every 45 mins. When I run Ampere, it says 50mA. Is this normal? I though fast charging isn't supposed to take 40 hours with the screen off...
How much do people normally get when they run the Ampere app?
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Click to collapse
Well, something is definitely wrong with your phone if it takes 40 hours to charge. I've would had it sent back.
But first, make sure you enabled fast charge
# Settings
# Battery
# fast charge
Second
Make sure your charger isn't broken.
See if you can test on another phone
If the charger is OK, and fast charge enabled
Deliver back phone and get a new one.
But most likely it's the charger I quess

Are you using the original cable/charger?

peachpuff said:
Are you using the original cable/charger?
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Click to collapse
Yes, the white one that came with the phone, and charging it directly from the wall

There is definitely something wrong if it's taking that long. Try another charger. That way you will know if it's the phone or the charger. If it's the phone, I would get a replacement.
Sent from my SM-G935T using Tapatalk

Yea it shouldnt take that long. Get a new one or maybe your wall plug is jacked up��.
Mine charges superfast.

ssgunner20 said:
Yea it shouldnt take that long. Get a new one or maybe your wall plug is jacked up��.
Mine charges superfast.
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Click to collapse
What's your mA on Ampere?

Im looking for The same answer. Mine do not pass The 1000 mark. Not sure if this is ok or not. My Nexus 6p is doing 1,700.

Be aware that QC fast charging is disabled when the screen is on.

How long does your s8 take to charge full from around 5%?

I have the feeling my s8 doesnt really fast recharge even if it's enabled (i'm on 2nd charge now)... how long does it usually take you guys to charge it full when its very low, around 5%? And how long does it say it takes on the notification? Thanks!

About 1h50 or something with normal charge, not fast charge.

Duskfall89 said:
About 1h50 or something with normal charge, not fast charge.
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Click to collapse
Mine definately took longer to charge than that the 2nd time (the first one i was asleep so i dont know) and with fast charge. Does it matter which side you plug in the cable or it's the same? I'm getting worried.

The side of the cable does not matter. I normally charge my phone when it's about 15% and with normal charge it takes around 1h40. Next time I charge it around 5% I will check but I think it's about 1h50 to 2h. My S7 was definitely faster in charging.

Takes about 90 minutes with fast charge

Around an hour and 20-30 minutes, a bit slower when I'm using wireless fast charging.

Did you notice a substantial difference between normal charge and fast charge? Lat time I checked it was about 10 minutes difference until full charge. I expected more, it was much better on the S7.

I think that fast charging got capped by samsung after all the note 7 exploding battery horror stories. And it got capped at 2.45amp fast wired charging and around 1.35 with fast wireless charging since the nougat update on the galaxy s7. when it was around 2.8 fast wired and 1.8 fast wireless charging on MM
Beside the charging rate cap, the fone is much cooler while fast charging now as it used to get crazy hot reaching temps above 42c while now it never gets over 36.smthing.
So while its slower i guess its a much better bet for the battery health and your safety.
Normal wired charging didnt change between MM and nougat and its around 1.7~1.8amp
These are my findings using the s7 and s8 exynos international versions and the statments above are purely my own opinion and experience which could be different for everyone.

I noticed that mine never goes over 1060ma while charging using Ampere. It takes about 1 hour 40 minutes to "fast charge" but it is cooler than any other phone I've ever had while charging.
The sad thing is that it REALLY takes longer if you are using the phone, like barely increasing its %. I even tried changing cables, chargers and places but now I know I'm not alone and this is how it works.
I have an Exynos.

pakitos said:
I noticed that mine never goes over 1060ma while charging using Ampere. It takes about 1 hour 40 minutes to "fast charge" but it is cooler than any other phone I've ever had while charging.
The sad thing is that it REALLY takes longer if you are using the phone, like barely increasing its %. I even tried changing cables, chargers and places but now I know I'm not alone and this is how it works.
I have an Exynos.
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Click to collapse
IMO ampere is crap and slow to report, you need an app that can report as fast as cpufloat. As once you turn on the screen the charging rate will default to ~1amp regardless of the charging mode your using and thats when ampere starts to measure.
Use cpu float for info at glance
Or
Use accubattery to even help you distnguish which charging cables your using gives you the best charging rate.
Hope this helps

Vcaddy said:
IMO ampere is crap and slow to report, you need an app that can report as fast as cpufloat. As once you turn on the screen the charging rate will default to ~1amp regardless of the charging mode your using and thats when ampere starts to measure.
Use cpu float for info at glance
Or
Use accubattery to even help you distnguish which charging cables your using gives you the best charging rate.
Hope this helps
Click to expand...
Click to collapse
Back when I had my Galaxy S4 I used "CurrentWidget: Battery" which was really nice but is not working anymore so I installed Ampere.
I just tried both apps you mentioned and both gave me the 1050am right away. I'll try later on since I was at 90% and if I remember thats the point where it starts to throttle down the current.
I like the AccuBattery 80% cycle though, not sure I can really use it since I prefer to go with a full battery for the entire day.
Thank you!

Mine takes around 1hr 30 mins , The other night i turned fast charge off as i was going to leave it charge throughout the night but i actually forgot i had turned it off and had been charging for a few days with fast charge off..... surprisingly i noticed no difference! It still took around the same time to charge haha

Vcaddy said:
I think that fast charging got capped by samsung after all the note 7 exploding battery horror stories. And it got capped at 2.45amp fast wired charging and around 1.35 with fast wireless charging since the nougat update on the galaxy s7. when it was around 2.8 fast wired and 1.8 fast wireless charging on MM
Beside the charging rate cap, the fone is much cooler while fast charging now as it used to get crazy hot reaching temps above 42c while now it never gets over 36.smthing.
So while its slower i guess its a much better bet for the battery health and your safety.
Normal wired charging didnt change between MM and nougat and its around 1.7~1.8amp
These are my findings using the s7 and s8 exynos international versions and the statments above are purely my own opinion and experience which could be different for everyone.
Click to expand...
Click to collapse
You hit it on the nose. They slowed it to avoid the whole exploding battery problems just to play it safe. Also why they didn't cram a bigger battery inside it to keep heat down.
They lost a lot of money because of that. The only thing that really saved them was that some iPhones were blowing up too
Sent from my Samsung SM-G950U using XDA Labs

Hi all!
Takes around 1 h 40 mins for a full charge. This is using the Fast Charger that comes in the box.

Duskfall89 said:
About 1h50 or something with normal charge, not fast charge.
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Click to collapse
Don't you fast charge?
Sent from my SM-G955F using Tapatalk

thahim said:
Don't you fast charge?
Sent from my SM-G955F using Tapatalk
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Click to collapse
I don't see a big difference between fast and normal charging. I only fast charge when I'm in a hurry.
Gesendet von meinem SM-G950F mit Tapatalk

pakitos said:
Back when I had my Galaxy S4 I used "CurrentWidget: Battery" which was really nice but is not working anymore so I installed Ampere.
I just tried both apps you mentioned and both gave me the 1050am right away. I'll try later on since I was at 90% and if I remember thats the point where it starts to throttle down the current.
I like the AccuBattery 80% cycle though, not sure I can really use it since I prefer to go with a full battery for the entire day.
Thank you!
Click to expand...
Click to collapse
Bear in mind that the charging rate will default to 1050ma whenever the screen is turned on no matter what charging mode your using.
To use my method in cpufloat app, open the app n keep it floating on your screen. Turn of the screen for awhile ( lets say 5 seconds) and n turn the screen back on. You will have a split second to read the current before it updates to the 1050ma. ( you can slow the update rate in the app settings btw.
Accubattery will have 2 readings, charging rate when screen on, charging rate with screen off.

Vcaddy said:
Bear in mind that the charging rate will default to 1050ma whenever the screen is turned on no matter what charging mode your using.
To use my method in cpufloat app, open the app n keep it floating on your screen. Turn of the screen for awhile ( lets say 5 seconds) and n turn the screen back on. You will have a split second to read the current before it updates to the 1050ma. ( you can slow the update rate in the app settings btw.
Accubattery will have 2 readings, charging rate when screen on, charging rate with screen off.
Click to expand...
Click to collapse
Yup, I noticed that, thanks!
Accbattery showed me a maximum of 1156ma obviously it was charging with the screen off. From there my test starts since this charge was done using a multi-usb charger and had something else charging and wasn't using the original cable. We will see
Thanks once again!

Duskfall89 said:
I don't see a big difference between fast and normal charging. I only fast charge when I'm in a hurry.
Gesendet von meinem SM-G950F mit Tapatalk
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Click to collapse
What other difference you want?

The charging issues on the Galaxy S8 seem to be widespread. I was hoping the most recent software update would help resolve these issues but it hasn't. Extremely slow charging (71% charged, 3 hrs 17 mins to 100%) and random connectivity (wireless charging paused) with Samsung's OEM wireless charger. What I've found with respect to the wireless issue, if I leave the phone on the charging pad after a few minutes it will eventually engage to a slow charge mode. Direct charging with the Samsung 2.0 Adaptive makes no difference, still a very slow charge. The normal Fast Charge Notification which should appear at the bottom of the display has never appeared and the tab remains grey in the Advanced Battery Settings even when enabled. Prior to purchasing the phone I had read and was advised by a Samsung tech the phone was suited to accept Qualcomm's 4+ Quick Charge. That seems unlikely at this point. Just got off a live chat with Samsung Support, not surprising the tech offered no solutions which I hadn't already experimented with. Booting up in Safe Mode to see if the app(s) were the problem, clearing system cache, app cache, using a variety of adaptives and cables, updating software, checking the C jack for connectivity. The S7 Edge I had previous to the S8+ was a great phone, no problems whatsoever. I honestly feel that Samsung is dragging their feet and haven't yet gotten their hands around these issues. Seriously, do they really want to experience another wide ranging battery concern? I think not. I can get a refund or replace the S8+ (SM-G955FD) but I'm wondering if the problems may be so widespread it could easily be an issue with the replacement phone. From the research I've done these issues are popping up on all models, regardless of the manufactures location.

Oneplus Wireless Charger Speed

Hi guys, I was lucky enough to get a free wireless charger with my phone from Oneplus.
Since then I have been testing the speeds and I am pretty surprised about how slow it is.
Now I realize that this might be faster than most wireless chargers, but I was wondering if you guys could post your times, ballpark, from either 50% to 100% or near dead to 100%. Something measurable.
My phone is at 4%, I put it on the charger and it says 1 hour and 43 minutes to full. Is that expected? Do yours show similar?

xgerryx said:
Hi guys, I was lucky enough to get a free wireless charger with my phone from Oneplus.
Since then I have been testing the speeds and I am pretty surprised about how slow it is.
Now I realize that this might be faster than most wireless chargers, but I was wondering if you guys could post your times, ballpark, from either 50% to 100% or near dead to 100%. Something measurable.
My phone is at 4%, I put it on the charger and it says 1 hour and 43 minutes to full. Is that expected? Do yours show similar?
Click to expand...
Click to collapse
That doesn't seem right. Did you check your settings on the phone? My S20 Ultra with a bigger battery and much slower wireless charging takes less time to fully charge.
Sent from my SM-G988U1 using Tapatalk

xgerryx said:
Hi guys, I was lucky enough to get a free wireless charger with my phone from Oneplus.
Since then I have been testing the speeds and I am pretty surprised about how slow it is.
Now I realize that this might be faster than most wireless chargers, but I was wondering if you guys could post your times, ballpark, from either 50% to 100% or near dead to 100%. Something measurable.
My phone is at 4%, I put it on the charger and it says 1 hour and 43 minutes to full. Is that expected? Do yours show similar?
Click to expand...
Click to collapse
First from gsam after letting it sit for ~30 seconds to establish a good connection, and 2nd from ACCA. This is the charging current it states for me.

skinnytoo2 said:
That doesn't seem right. Did you check your settings on the phone? My S20 Ultra with a bigger battery and much slower wireless charging takes less time to fully charge.
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Click to collapse
Unless there is a setting to turn on on the phone to enable fast wireless charging, and I don't think there is, it doesn't seem to be working correctly. I could try to plug the charger in another outlet. Not sure what other variables there are.

My charging speeds are also slower. Even slower then on my 15W Samsung wireless charger. Any ideas why?

I get fast charge with my Samsung fast wireless chargers. I going to return their Warp charger.
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