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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.
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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
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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%).
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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?
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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).
I noticed something really odd with charge times on the couple of roms I've been on since getting this phone.
Starting off, I got the phone and immediately flashed Carbon rom. I've noticed extremely poor charge times. This was using the stock AC adapter and usb cable. Surely it shouldn't take that long to charge. The night I noticed I had charging issues, I went to bed when the phone was @ 60% charge. Woke up 7 hours later, phone was at 80%. Ended up playing some games / using the phone and while plugged in charging, the battery was draining down.
The 2nd night. same thing happened. So I decided to watch the phone charge while doing nothing. It would literally climb 1% after 5-10 minutes at best. So further investigating, I was looking around on xda and there were quite a few threads about people having very slow charge times on the Note 2 and some that can fully charge from 0-100 in ~ 2-3 hours. I ended up installing battery monitoring widgets (Elixir Widgets to show charge mA values and Battery Monitor Pro. So apparently even though it shows my phone is receiving 1600-1800 mA, it still charges extremely slow.
The odd thing was, the rate it was charging off the wall was slower than plugging into my comp to charge (and when plugged into my comp, it showed it intaking 500-900 mA).
Now the really odd thing is, I decided to flash a different rom (LiquidSmooth) because of the annoying mdm_hsic_pm0 wake locks carbon was having. I used the phone to about 80% configuring it and I plugged it into the wall charger. Walked away for 5-10 min, and came back and saw it was at 85%. Before, 5% would have taken me a good 20 minutes of charging. After a while, I looked back at Battery Monitor Pro and according to the history, it charged from 80%-100% within 30 minutes. This charging issue is ridiculous. Fixed by swapping roms. Perhaps there are some coding issues somewhere affecting charge rates.
You should post this on the carbon wall and let them know what version u were using.
Sent from my SGH-T889 using XDA Premium HD app
I have made a lot of comments in this thread regarding charging time issue. Most of the charging widget apps you find in the Playstore are useless. The only app that correctly display your REAL charging current is here: (look for the op's comments and mine, I have provided a lot analysis for everyone's benefit)
http://forum.xda-developers.com/showthread.php?t=2076078&page=1
I noticed the same thing when I went from stock to tweaked 1.5
What fixed it for me was moving the charger from a strip directly to a wall plug. Kind of a pain since now I have to charge it in another room.
Sent from my SGH-T889 using xda premium
I had to switch roms to get it to charge normally. Now my phone charges about 1%/min. Before on Carbon, it was charging 1% every 7-10 min. I been using the stock 2A charger adapter + stock cable that came w/ the note 2 in the wall. Can't possibly be adapter issue as rom swap fixed it for me.
Aria807 said:
I had to switch roms to get it to charge normally. Now my phone charges about 1%/min. Before on Carbon, it was charging 1% every 7-10 min. I been using the stock 2A charger adapter + stock cable that came w/ the note 2 in the wall. Can't possibly be adapter issue as rom swap fixed it for me.
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Click to collapse
I don't have the issue and I use Carbon so it's not the ROM.
I installed the app mentioned in the thread and my charge voltage is normal.
Carbon Nightly | Kroz Hue Theme | Crack Flasher
When plugged in, my Note II will LOSE juice while I use it but will charge normally while the screen is off. This is the case even with the brightness set to auto or even manually set to it's lowest level while using an app with a black theme (like Reddit Is Fun). Checking out the battery usage still says the screen uses the most power. This happened while stock and with the Jedi 12 ROM.
My 12.2 Tab Pro loses about 10% charge for every hour in use: about right, I think. It takes about an hour to charge about 10% when not in use: rather slow in my opinion.
When I am using my Tab while connected to the mains, it will not charge. In fact, it loses about the same amount as when it is not being charged.
Using in this context is reading books (Kindle), reading newspapers (PresReader) and web browsing.
I have tried USB 3 and USB 2 plugged into a mains plug, and USB 2 directly connected to a mains plug. I have tried different cables and plugs. They all behave similarly.
Should it not charge when in use?
Are you using the Samsung charger and cable that came with your tablet?
Sent from my SM-P900 using Tapatalk
Amongst others, yes.
I have same problem with mine. Battery can die super quick from 100%, then a restart shows it with 60% (as example) battery. Are you rooted? I've seen others with similar problems, but no answers. Thinking of sending back to get fixed
NineToTheSky said:
My 12.2 Tab Pro loses about 10% charge for every hour in use: about right, I think. It takes about an hour to charge about 10% when not in use: rather slow in my opinion.
When I am using my Tab while connected to the mains, it will not charge. In fact, it loses about the same amount as when it is not being charged.
Using in this context is reading books (Kindle), reading newspapers (PresReader) and web browsing.
I have tried USB 3 and USB 2 plugged into a mains plug, and USB 2 directly connected to a mains plug. I have tried different cables and plugs. They all behave similarly.
Should it not charge when in use?
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Click to collapse
Are you charging it from the computer?
Mine doesn't take an hour to charge 10%. You probably have a defective unit.
If it takes an hour to charge 10% using the stock cable and charger, there's a hardware fault somewhere, be it your cable, charger or the tablet itself.
Sent from my SM-P900 using Tapatalk
USB ports do not provide enough current to charge these devices. I understand that, when on, the power drain exceeds input from USB sources. I use AC with adapters rated at 2 A. I also have a car charger with that current rating that plugs into the car lighter. USB ports, whether in computers, cars, or airport lobbies are useless.
If you are using wall plug rated at 2A and are not charging, then one of the 3 components is bad (charger, cable, or phone).
Sent telepathically to my Galaxy S4
I'm also having the same issue . I have left it plugged in ( wall outlet ) and off for an entire day and it still wasn't charged 100% . I am rooted .
slow charging
gtrplyr67 said:
I'm also having the same issue . I have left it plugged in ( wall outlet ) and off for an entire day and it still wasn't charged 100% . I am rooted .
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I bought my Tab pro 8.4 in June 2014. I use it about an hour each day and charge it when the charge drops below 30 percent.
Recently I have noticed, it takes all night to charge. This should not happen. my Ipod touch charges in less than 1 hour and its an old version 3, (6 years old or more)..
I am using the wall plug that came with the unit, to charge it. It should not be taking 12 hours.
This seems to be a problem with these 8.4's.
there are a number of possible causes: bad battery, port, charger, power source, too many apps .... you might want to read this guide on how to fix an Android phone that doesn’t charge (or discharges) when connected to a power source to help you identify the cause and fix it
Galaxy Note Pro Battery Issues
Brendo said:
I have same problem with mine. Battery can die super quick from 100%, then a restart shows it with 60% (as example) battery. Are you rooted? I've seen others with similar problems, but no answers. Thinking of sending back to get fixed
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Click to collapse
I have the exact same issue with My Galaxy Note Pro. It will not charge while in use and the battery drains extremely fast even with most all settings turned off and screen brightness turned down. I turn the tablet off every night to charge and the charging speed is extremely slow. I am using all Samsung OEM cables and chargers. Ive tried USB 2 & 3 cables with no noticeable difference. I am going to do a factory wipe and then closely monitor the power useage. Im starting to think that there is an issue with the Note Pro based on the sheer amount of users reporting the same or similar problems.
If anyone has figured out the culprit behind this issue, please pass it along!
Battery indication issues
I have the same problem with charging the Note Pro 8.4.
After some investigation and multiple tries it seems very much that the reported battery level is not in line with "reality".
It happened numerous times that while the tablet was on and charging, the battery level did not go up or only 1% every hour or so. After reboot the reported battery level was much higher.
I decided to throw some apps from the tablet which vastly improved the battery level indication and more or less seem to work as expected. I know from previous experiences with my Note 2 that some apps/widgets can wreak havoc on very basic functionality like charging. For example the stock picture frame widget on the old Note 2 had the effect the charging icon did not update. After reboot of the phone it was much better. Removing the widget solved the problem.
All in all carefully check installed apps/widgets on the Note Pro (8.4) because the firmware does not seem to cope well with certain apps/widget combination whatever that may be...
Hi XDA users,
I'm having some more issues with my N7 2013 I use my tablet mostly for watching youtube in the evening but my battery is like 20% most of the time so I plug it in and start watching youtube. But I've noticed that after half an hour the battery was 10%, the battery seems to be draining whilst plugged in! It happens every now and then sometimes it charges just fine, I've tried different chargers and cables but it doesn't affect it. The battery seems to be dropping 1 to 2% every 5 minutes and it'll eventually turn off and turn back on right after when it turns back on the loop continues, it works for another 10 minutes then it shuts off again! Of course if I leave it alone it will charge just fine but it's still weird that it discharges even though it's plugged in while in use. Even listening to music causes it to drain. I'm using a 5v @ 2amp charger so I assume that's not the problem. (I've also tried a bunch of 1 amp chargers but it has the same effect) I'm running screw'd android (5.0.2) and the only things that seem to be draining the battery are Youtube(22%) and the screen(18%) the rest is all 1 or 2%! Yes I've tried flashing ROM's and the issue does go away but it comes back after like a week or so.
Does anyone know what the problem is?
thanks,
noahvt
You're likely drawing more power than you're putting in. I believe the stock charger charges at 1500 or 1700 mAh, which should work to charge it while you're using it.
If you are using charger from another device charges more slowly like 500mAh or even 1000mAh, it may not be able to keep up.
I'm using a 2000mAh asus charger from my old TF300T and if I'm pulling more current than that charger can supply I don't know what the thing is doing
noahvt said:
I'm using a 2000mAh asus charger from my old TF300T and if I'm pulling more current than that charger can supply I don't know what the thing is doing
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I think your device has some issues with battery.If you are still in warranty period,get it back to stock condition & contact the support
My wife has the same problem.. She has to turn her screen off, in order for the battery to charge.. If she doesn't, it keeps running the battery down.. Try turning the screen off, and check it after 15 minutes. You may be pleasantly surprised.. Hope this helps you out..
Hi, I just got an LG G4 yesterday. Charging using stock charger, or any other charger I had no problems with S3 before, is really slow. As in obviously slow. The unit is estimating 3-4 hours to charge 30%-40% of battery. Once it took around 20-30 minutes to just charge 5% of battery.
Using Ampere app it is showing on average just 270mah charge. Sometimes it registers 1660mah, then it drops down significantly and settles with 270mah.
Using the dual sim model if that's any help.
Is this a new battery thing? Should I insist to have the unit (or the battery) replaced? Is this a hardware or a software issue? Even if i insist to have this replaced I want to be able to explain that this is a factory defect.
Same problem here..
Really annoying.
gideon200 said:
Same problem here..
Really annoying.
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Same here, I think it charges at full speed when the screen is off...
I got myself a QC2.0 charger and its doing exactly the same.
It does appear to charge faster with it while the screen is off but I'm wondering if there is an update to the device that needs to be done to fully support QC2.0
i've buy an Aukey Turbo Charger Adapter.
Then my G4 has fast charging more about 75%
I've seen the same thing happen on mine. Highest current I've seen was 1650 mah. And that's with the screen off. Leaving the screen on it reduces to 270 mah
Sent from my SHIELD Tablet using XDA Free mobile app
I had the same problem but it stopped after about week. Now it charges quite quickly and that's not with the fastcharge that isn't too impressive.
Same issue. Charging went from 2% to 46% in about 3.5 hours and it says it's still another 4 hours before it completes charging. Totally annoying.
i using the Aukey Turbo Charger and get around 1%-1.5% every min i have done 30%-70% in like 40min
I have a HTC quick charger that I used with my M8. It works well with the G4. With the screen off I have had nearly 2 A charging. It is much less when the screen is on.
Just got my G4 and it's doing the same thing.
Sent from my Nexus 6 using XDA Free mobile app
Bogega said:
Same issue. Charging went from 2% to 46% in about 3.5 hours and it says it's still another 4 hours before it completes charging. Totally annoying.
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Click to collapse
are you using the screen while its charging tho? how many times have you charged it already since you got it?
Phurkus said:
are you using the screen while its charging tho? how many times have you charged it already since you got it?
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my post was made during 2nd ever charging. i did turn on screen occasionally, but not like it was on all the time.
last night charge was shorter - around 5.5 hours.
This is really annoying trying to stream music and navigation sometimes losses a charge. With nexus 5 I usually gained 30 plus percent on my way to work on 40 ish minutes with car charger.
It "might" be a software limitation, to avoid pushing the battery too hard in its early cycles. Same as a brand new car, they usually tell you not to drive too fast for the motor to actually run with optimal parameters.
[2cents]
I am also experiencing the same. I am getting 640mA. It is really frustrating. Yesterday I connected the phone with the provided cable with G4 with my laptop. And i was using the phone, not heavy using. And actually the battery was draining, rather than charging. I got so frustrated. I found the phone actually charges better while staying idle & screen off, but not very promising.
Yep, add me to that list too. T-Mobile G4 with screen off and no use because I'm driving almost all day just to see a 5-10% more charge after driving almost 2 hours. The original charger behaves the same way too. The only fix I've found is to turn the phone off and charge it. It charges really fast that way only.
Sent from my LG-H811 using Tapatalk
Charged mine from 2 to 100% in under 2 hours with my note 4 charger
@fatboypup does this also work with screen on? Imagine using gmaps in the car, screen and gps active - it would be a pity if the g4 lost power in such a situation when on the car charger
pen² said:
@fatboypup does this also work with screen on? Imagine using gmaps in the car, screen and gps active - it would be a pity if the g4 lost power in such a situation when on the car charger
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As I noted above it is an issue with cars too. I'm lucky to gain 5 to 10 percent with navigation and streaming music in 45 mins. The same situation with nexus was over 30%.
Does this behavior stay or is it only for the first charges? Is there anyone who has no slow charging with screen on? Is the g4 gaining at least some percent when navigating with gmaps?