Database Users

Battery DISCHARGING while Charging!!

Strange Issue!!
when my phone is low on battery and i try to charge it (with the original ac charger or the usb); sometimes (almost half the times) the phone instead of charging .... DISCHARGES!!
i have tried all possible fixes. tried the battery calibration apps also. but it gets ok for a day and then back.
i can only charge my phone while its switched off!
Details:
1. on stock TW4
2. 3 pages on home
3. total widgets= 6 ( advanced task killer; digital clock; 2- circle launcher; quick battery; weather)
4. i kill all tasks always before charging!
WHAT AM I DOING WRONG? BTW I HAVE TRIED TO REMOVE ALL WIDGETS AND CHARGE ALSO! NO LUCK!
HELP!!

It sound like you might have a faulty charger, have you tried charging from your notebook, it`s a bit slower at 400mah compared to 650mah for the mains charger.

Tinderbox (UK) said:
It sound like you might have a faulty charger, have you tried charging from your notebook, it`s a bit slower at 400mah compared to 650mah for the mains charger.
Click to expand...
Click to collapse
Yes, as a matter of fact, right now i am trying to charge through USB with the same drainage.
Switch the phone off for a while!... let the sucker charge.
And the problem is not always!

this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.

RogerPodacter said:
this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.
Click to expand...
Click to collapse
yup! i was having the same problem and did this Roger says and its exactly that... GL

if your phone is hot too it will not charge as well.

RogerPodacter said:
this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.
Click to expand...
Click to collapse
My problem is when I'm not using the phone at all and the screen is off. Tried charging through both wall and usb charger.
The only way right now I can charge my phone is while switched off.
I always kill all apps before charging also... Still!
And if its charging while on, screen off, it gets hot also.
Sent from my GT-I9100 using XDA Premium App

vinaymieux said:
My problem is when I'm not using the phone at all and the screen is off. Tried charging through both wall and usb charger.
The only way right now I can charge my phone is while switched off.
I always kill all apps before charging also... Still!
And if its charging while on, screen off, it gets hot also.
Edit: i also have read in many places that using task killer actually cause more harm than good bcoz it disturbs the proper sequece of how android shuts down an app or process..and cleans up the memory..this will result some of the apps or process to stay awake or come awake again when it sould be sleeping...
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
I once had this problem..after charging for 6 hours battery was only at 60% and phone was hot..found out that although the screen was off..the phone was wide awake all the time. For me the issue was the wifi manager was somehow awake and consuming power..hence phone was hot and battery drain while charging. Check your battery usage graph and see if your phone is awake when it should not be..and pin down the rouge app or process..
Hope this helps..
Sent from my GT-I9100 using Tapatalk

I've got a similar problem, while charging in a car using the SGS2 for navigation. BTW, what is the maximum Amper I can charge the phone without damaging it?

I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App

SkulleD_PT said:
I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I am using HTC's 1000mA charger and still,this happens to some extent,only much less.Try overclocking the hell out of it and then start benchmarking.Charging?Hell no.You may even need to draw power from the house next to yours!

SkulleD_PT said:
I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I read somewhre in this forum that samsung has set a limit of max amperage on this device to below 700 miliamp( cant remember the exact value for ac charging and usb charging) so thts why the charger is rated to 700mah
Sent from my GT-I9100 using Tapatalk

iznee said:
I read somewhre in this forum that samsung has set a limit of max amperage on this device to below 700 miliamp( cant remember the exact value for ac charging and usb charging) so thts why the charger is rated to 700mah
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
That's right,but if the charger was 1000mA like HTC's it would continue to draw those 700mA it needs even while in use.You wouldn't notice any difference at all with it charging while not being used,but when screen is on there is a difference.

They limited charge current to 650 mA in the driver code, so that's why they use a 0.7 A charger. Using a higher output won't help unless someone compiles a new kernel.

I charge the phone until 100%. When unplug, it immediately drops to 85%-90%. On one occassions, it dropped to 40%! What's wrong with it?

iCatchU said:
I charge the phone until 100%. When unplug, it immediately drops to 85%-90%. On one occassions, it dropped to 40%! What's wrong with it?
Click to expand...
Click to collapse
As i posted before...something is always awake on your phone..try looking at your battery graph..and i am sure your device is quiet warm..
Sent from my GT-I9100 using Tapatalk

iznee said:
As i posted before...something is always awake on your phone..try looking at your battery graph..and i am sure your device is quiet warm..
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Thanks. But...i tried charging it whilst it was turned off. The icon showed 100%. I then unplug and switched it on. The same happened. So, it should not be Apps related. Right?

iCatchU said:
Thanks. But...i tried charging it whilst it was turned off. The icon showed 100%. I then unplug and switched it on. The same happened. So, it should not be Apps related. Right?
Click to expand...
Click to collapse
I suggest you do a simple trouble shooting...charge your phone to 100% while it is off.
Than unplug, switch on your phone and just leave it for half hour or an hour without doing anything.
Than swith your display on...and go to settings
Select about phone..
Go to battery use and tap on the graph.
It will show you a few horizontal lines.
Make sure your screen on and awake time bars coincide nicely.
While your screen is off your awake bar should be very very minumum... most of the high battery drain casses will have a very short screen on bar but a solid long line of awake time.
This is normally due to some rougue app or process...and you have to narrow it down.
If your graph looks normal..than you could be having a defective battery or in worst case a defective hardware.
Sent from my GT-I9100 using Tapatalk

The max of 0.7 amps is a partykiller... When in my car, I'd like to have my phone record everything (dailyroads voyager as dashcam), while navigating... Definitely discharging there while on stock carcharger! So I will have to choose when I'm going on holiday (12 hours drive...)
Sent from my GT-I9100 using XDA App

I had a same problem before. But after I reflash 2-3 times (literom 1.5 for now) it's gone, and charging normal on car and wall charger while gaming or navigate.

Battery temperature during charging

What's the normal temp during charging? I notice when on charging mode,I can really feel the heat on the phone. Initially I thought it was cpu until I use an app to verify. Its showing 47celcius. Should I ask for a replacement?
Sent from my GT-N7000 using XDA App

foochuangyeh said:
What's the normal temp during charging? I notice when on charging mode,I can really feel the heat on the phone. Initially I thought it was cpu until I use an app to verify. Its showing 47celcius. Should I ask for a replacement?
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
47 is very high i guess , normal is between 36-42 celcius. Check if many apps are running in the background while charging . Download cpu spy in the market to check if the cpu goes in deep sleep or not.

mine the temperature goes up only in one case
when I am surfing the net while the device is charging
while only charging the temperature is OK. Also if I am surfing and not charging it is OK
I also don't think that 47 has any threat on the device

Mine idle's around 22°C, hits 29°-31°C when charging on a 1A (1000mA) charger, and during usage hits 29°-33°C during high usage with occasional, brief peaks as high as 40°C. If your charger puts out more current, I could see the battery getting hotter, but 47°C seems too hot to me. I'd look into getting it exchanged, unless you have something running full blast while charging on a 2A charger. How's your battery life?

my battery life is ok..deep sleep working well at high percentage...i left wifi own downloading some data for games, not sure if that will make the battery warm up?

How do I test Quick Charge 3.0?

I just got myself a new V20 yesterday. I tried charging it with my own Quick Charge 3.0 wall charger but I'm not too sure about the charge time.
So I'm going to try again. But before I begin, I need some advice.
How do I check if it's really charging with Quick Charge 3.0? Also, the phone now is currently about 66%, how much more do I have to drain before I commence?
Sent from my LG-H990 using Tapatalk

As much as you want. Thing to remember...QC is variable rate, the more charged you are the less fast it is. Also, official posted charge times from OEMs refer to a phone powered off typically.

Right. Powered off. Good point.
And I supposed using an app like "Ampere" is not going to work because of QC3.0's variable voltage and amps, am I correct?
Sent from my LG-H990 using Tapatalk

Okay. Just did a little test.
Started at 5pm with 25% battery left and using my own QC3 wall charger.
Ended at 5.50pm with 91%.
That's pretty fast! And the best part, the battery stays cool despite Quick Charge.
I'm going to try charging from 0% tonight.
Edit - Oh and my phone was turned off while charging.
Sent from my LG-H990 using Tapatalk

BozQ said:
Okay. Just did a little test.
Started at 5pm with 25% battery left and using my own QC3 wall charger.
Ended at 5.50pm with 91%.
That's pretty fast! And the best part, the battery stays cool despite Quick Charge.
I'm going to try charging from 0% tonight.
Edit - Oh and my phone was turned off while charging.
Sent from my LG-H990 using Tapatalk
Click to expand...
Click to collapse
Just an FYI, it's not good to drain your battery to zero. It'll shorten it's life. Keeping it between 40-80% is optimal from what I've read.
Sent from my SM-T810 using Tapatalk

Ampere app on Play Store, check it's charge current values specially when screen is off. I think it should be like between 2400 mA to 3200 mA. When screen is on , the charge current values decreases. Also with the app, you can compare the current values of QC 2.0 versus QC 3.0. Cable should't be faulty.

Pick_A_Name said:
Just an FYI, it's not good to drain your battery to zero. It'll shorten it's life. Keeping it between 40-80% is optimal from what I've read.
Sent from my SM-T810 using Tapatalk
Click to expand...
Click to collapse
Thanks for your advice. I am aware of this. But I want to experiment just this one time. So it shouldn't hurt too much.
And the results are good! 30 minutes and it reaches 51%. 60 minutes with 89%. 70 minutes 95%. And 83 minutes to hit 100%.
Very pleased with the results.
Ali Mirza said:
Ampere app on Play Store, check it's charge current values specially when screen is off. I think it should be like between 2400 mA to 3200 mA. When screen is on , the charge current values decreases. Also with the app, you can compare the current values of QC 2.0 versus QC 3.0. Cable should't be faulty.
Click to expand...
Click to collapse
Ampere might not be the best way to measure current values because of the way Quick Charge 3.0 charges with variable voltage.
The few times I measured all fall below 1000mAh.
Sent from my LG-H990 using Tapatalk

Will the Samsung charger for the note 7 quick charge the v20?
Sent from my LG-H918 using XDA-Developers mobile app

jjr3211 said:
Will the Samsung charger for the note 7 quick charge the v20?
Sent from my LG-H918 using XDA-Developers mobile app
Click to expand...
Click to collapse
Yes it does. I have been using it.

Great thank you
Sent from my LG-H918 using XDA-Developers mobile app

Just not as fast because Samsung uses quick charge 2 and LG has version 3.
Sent from my SM-T810 using Tapatalk

So the LG charger is not Version 3?

Drey070 said:
So the LG charger is not Version 3?
Click to expand...
Click to collapse
Doh.

Hey fellas, not to take over the subject matter but feel like you all know batteries well. What if a 1am charger is used overnight for charging. Going with the idea that a slower charge charges the battery better and maintains a better charge all day, or is that not the case. Also is any harm done with charging with a slower charger. Thanks

I never use quick charge at work or at home, slow charging will prolong the battery life. I always start to charge at about 8-15% where possible, and disconnect the charger around 90-95%, this is the proper way to prolong litium battery.
The only time I use QC is when i'm traveling.
---------- Post added at 03:01 PM ---------- Previous post was at 02:58 PM ----------
Beandip-Javier said:
Hey fellas, not to take over the subject matter but feel like you all know batteries well. What if a 1am charger is used overnight for charging. Going with the idea that a slower charge charges the battery better and maintains a better charge all day, or is that not the case. Also is any harm done with charging with a slower charger. Thanks
Click to expand...
Click to collapse
I use my old samsung 2A charger, all my QC are still in the box, about 5 of them.:victory:

Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.

Beandip-Javier said:
Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.
Click to expand...
Click to collapse
I have a samsung 2A and a SE 1.5A using them at work, they are not QC, but they do charge my phone pretty quick especially my xperia XP.

Beandip-Javier said:
Thank you @kms108 , I use 1am charger for my overnight charging at home overnight. I tend to also stay away from fast charge but wasn't sure if I was doing more harm then good. I do have a quick charge at work that I use for about 10 min before I leave the office.
Click to expand...
Click to collapse
It is better to use a slower to prolong the longevity of the battery. You won't get more 'charge' from using a slower charge. I try to use slower chargers when I can. I usually use my Samsung 2A chargers and use my adaptive fast charging when I need quickness. The LG QC 3.0 does pretty well though. Battery doesn't get that hot but I'm quite sure it still isn't good for the longevity. Nonetheless, we have swappable batteries so I can use my AFC and LG QC 3 more often lime I do my note 4. My HTC m8 and moto x pure usually were used with 1A chargers most of the time unless I needed a super fast charge. Also, LG makes quality batteries. Probably why Samsung is switching to them until they figure out what the hell they did. Also, notice apple doesn't use quick charging technology. iPhone's battery tend to hold charges better until a out 18 Mo th period before user starts noticing appreciable decline. The peeps that put iPad chargers on iPhone's will see less longevity from their battery.

So I thought that QC3.0 was supposed to get you closer to 80% in 35 minutes, vs the 50-55 from qc2.0. So I also read that the factory charger that LG sent is a QC2.0 and not 3. So I bought a 3.0 brick and also a new usb c that is certified compliant with QC3.0. Still only got to about 40% in 30 minutes. Not sure what's going on with that. I understand longevity and all of that. However I got this phone because once my battery is shot I can just swap it. So I don't mind getting that faster time and buying a newer battery a bit early.

Best quick charge cable
Skripka said:
As much as you want. Thing to remember...QC is variable rate, the more charged you are the less fast it is. Also, official posted charge times from OEMs refer to a phone powered off typically.
Click to expand...
Click to collapse
Any recommendations on the best usb c cable for my LG V20. Some I have purchased do not quick charge as described.

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.
Click to expand...
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.
Click to expand...
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.
Click to expand...
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
Click to expand...
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
Click to expand...
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.

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Samsung Galaxy Z Fold 2 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

My phone arrived with 54% charge. It took about 40min to charge to full. Will do some more complete testing over the next few days.

The charge speed is something im a bit concerned about. I've noticed charging while the phone is on significantly slows down the charging process. To the point where 10 minutes went by on "super fast charging" and the phone only increased 1% in charge. The minute I laid the phone down screen off and the charging went significantly faster.
Sent from my SM-F916U1 using Tapatalk

Yes because if your using the phone or the phone screen is on your consuming battery life while your charging so it's going to be slower charging than if the screen was off.

seanbwoi said:
Yes because if your using the phone or the phone screen is on your consuming battery life while your charging so it's going to be slower charging than if the screen was off.
Click to expand...
Click to collapse
The issue i have is my note 10+ didn't have this issue nor any phone I've ever used. I could be gaming on my note and it would charge normally.
Sent from my SM-F916U1 using Tapatalk

Didn't the note 10+ have a 45 watt charging right? If you had the charger you probably wouldn't notice it

8% to a full charge took 1hr 15min. Haven’t tried charging while using the device at the same time yet.

JSK0703 said:
8% to a full charge took 1hr 15min. Haven’t tried charging while using the device at the same time yet.
Click to expand...
Click to collapse
If you end up trying it, post your results here please, I'm quite curious. Thanks!
Sent from my SM-F916U1 using Tapatalk

desantim said:
If you end up trying it, post your results here please, I'm quite curious. Thanks!
Sent from my SM-F916U1 using Tapatalk
Click to expand...
Click to collapse
I tried a quick test by running the battery down to 90% and then launching a game on the big screen. (Clash Royale) Plugged in the charger while playing and it topped off in just a few minutes. Going to run it down to 50% tonight and repeat the test.
Sent from my SM-F916U using Tapatalk

Repeated the test, this time I had the battery at 55%. Played WGT Golf while charging. Default settings which had screen brightness are 30%. Battery topped off in 46 min.
Sent from my SM-F916U using Tapatalk

JSK0703 said:
Repeated the test, this time I had the battery at 55%. Played WGT Golf while charging. Default settings which had screen brightness are 30%. Battery topped off in 46 min.
Sent from my SM-F916U using Tapatalk
Click to expand...
Click to collapse
Thank you for the tests, I'll have to take a look and see if it's just me, the charger or the phone.
Sent from my SM-F916U1 using Tapatalk

Charging is not that fast and im using the 40w samsumg charger

xavierxxx2p said:
Charging is not that fast and im using the 40w samsumg charger
Click to expand...
Click to collapse
The phone only charges at 25 watts max

For some reason my phone is taking 6hrs to fully charge from zero on the Samsung fast charging dual pad. What is going on?

I hooked up my USB c gizmo.... only saw max 18w charging using a variety of cables and chargers with fold 2. I'm coming from a note 10+ where I saw 45w max. What gives?

lynseyw said:
For some reason my phone is taking 6hrs to fully charge from zero on the Samsung fast charging dual pad. What is going on?
Click to expand...
Click to collapse
Has the charging pad been used to charge other devices and worked as it should? Is the pads own plug and cable being used as they could determine the charge speed too.
On the Fold 2, is fast wireless charging enabled? If you go to the Battery settings in Device Care at the bottom there's Charging. Make sure both Fast Charging and Fast Wireless Charging are on. You can schedule the fast wireless charging to turn off at night so it charges more slowly and, if the charger is compatible, the charging light dims and the cooling fan doesn't turn on.
I only charge wirelessly using the Samsung 15w wireless charging stand and have the Fold 2 scheduled to turn off Fast charge at night. This turns off the chargers fan and dims the light.

All of that is checked. My note 10+ was fine. This is slow as ****. Not the pad. Watch does fine etc. It charges at 12w. Oh well. I guess if I want it fast I'll just have to plug it in.
Sent from my SM-F916U using Tapatalk

lynseyw said:
All of that is checked. My note 10+ was fine. This is slow as ****. Not the pad. Watch does fine etc. It charges at 12w. Oh well. I guess if I want it fast I'll just have to plug it in.
Sent from my SM-F916U using Tapatalk
Click to expand...
Click to collapse
I have the same issue. Wireless charging has been abysmal at best.
Sent from my SM-F916U1 using Tapatalk

Glad it's not just me. Still love the phone. I usually charge it when I'm sleeping so it's fine. Might have to give it a refresh cable charge before bed so it's not at zero when I go to bed.
Sent from my SM-F916U using Tapatalk

lynseyw said:
Glad it's not just me. Still love the phone. I usually charge it when I'm sleeping so it's fine. Might have to give it a refresh cable charge before bed so it's not at zero when I go to bed.
Sent from my SM-F916U using Tapatalk
Click to expand...
Click to collapse
It's definitely a new experience for me with the charging. I came from a oneplus 7 pro to the note 10+ to this and those could go from dead to full in under 40 minutes. This phone is much slower charging overall. I Def. Don't regret buying it, i just wish it came with a cheap case to get me by until good ones were out and the charging was on point.
Sent from my SM-F916U1 using Tapatalk