[Q] Battery takes more than 6 hours to charge??? - Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl

I have bought a brand new p-601, since the first installation it takes more than 6 hours in battery charging.
Is it normal or there is something wrong with the battery/tablet.
Is it possible reset the binary counter to 0, cause I have rooted it twice?
Best Regards

skyhigh73 said:
I have bought a brand new p-601, since the first installation it takes more than 6 hours in battery charging.
Is it normal or there is something wrong with the battery/tablet.
Is it possible reset the binary counter to 0, cause I have rooted it twice?
Best Regards
Click to expand...
Click to collapse
Yes its normal, all Exynos Note 10.1 2014 take a long time to charge, My P600 takes 5 hours however others have said it takes them 6-8hours to fully charge.

Same here
Think it's because of USB 2.0
Note 3 with USB 3.0 in roughly 2 hours
Someone could calculate the theoretical time by comparing how much power USB 2.0 can put through vs USB 3.0. Should be roughly 2 times more.
So maybe there will come a Note 10.1 Pro with USB 3.0 and NFC
Sent from my SM-N9005 using XDA Premium HD app

Flyer.michael said:
Think it's because of USB 2.0
Click to expand...
Click to collapse
It's not USB 3.0. Only the Tab/Pro 12.2's have USB 3.0 anyway. Here's how Samsung implements USB 3.0; at least on the N3.
The Galaxy Note 3 ships with USB 3.0, unfortunately at least in its current state it doesn't seem to get any benefit from the interface. Although the internal eMMC is capable of being read from at ~100MB/s, sustained transfers from the device over adb averaged around 30MB/s regardless of whether or not I connected the Note 3 to a USB 2.0 or 3.0 host.
Update: USB 3.0 does work on the Note 3, but only when connected to a Windows PC with USB 3.0. Doing so brings up a new option in the "USB Computer Connection" picker with USB 3.0 as an option. Ticking this alerts you that using USB 3.0 might interfere with calls and data, but then switches over. Connection transfer speed is indeed faster in this mode as well, like you'd expect. It only appears on Windows as well, my earlier attempts were on OS X where this popup option never appears.
Charging is an interesting story on the Note 3, but primarily because of what doesn’t change. The Note 3 continues to use Samsung’s tablet charging specification and charger, which has 2 amps of maximum output. The Note 3 draws 2 amps over a considerable amount of the charging curve, like other Samsung devices (in the linear part of the charge curve). USB 3.0 doesn’t change things up here quite yet with the new supported charge voltages that are coming eventually with the power delivery specification.
http://www.anandtech.com/show/7376/samsung-galaxy-note-3-review/3​
It's because of a Qualcomm dedicated charging circuit that's (optionally) part of S-800...
http://www.qualcomm.com/chipsets/quick-charge

Flyer.michael;4963 765 said:
Same here
Think it's because of USB 2.0
Note 3 with USB 3.0 in roughly 2 hours
Someone could calculate the theoretical time by comparing how much power USB 2.0 can put through vs USB 3.0. Should be roughly 2 times more.
So maybe there will come a Note 10.1 Pro with USB 3.0 and NFC
Sent from my SM-N9005 using XDA Premium HD app
Click to expand...
Click to collapse
The p600 has a battery capacity that is 2.56 times bigger than the note 3 (3,200 vs. 8,220mAh) so its not a fair comparison.
.

My P605 My P600 takes 4 hours.. don't know about the exynos version.

It is obviously slower than any tablet or phone. Very boring and annoying. The question is how to differentiate between motherboard failure and normal slow battery charging?

Try a different cable
I was having this problem a few days back but found a hint on one of the threads I found on the internet. I was using a USB extension cable with the Samsung charger. It was taking 1 hr just to charge 1%. Then I tried not using the extension cable. It's now charging 10-15% every hour. It's likely the calbe you're using is the problem. If it's not the original cable that came with the tablet, try that cable.

I just got mine for xxxmas, and it takes about 6 hours, give or take, to go from ≈5-10% to full charge, maybe less when I don't use it; and I guess I get about the same life most have mentioned (is there a way to track charge/discharge times?).
That said, I just plugged in at 15%, and I just crossed 25% in about 20-25 minutes. I use the stock charger and cable plugged into an extension cord as thick as my arm... okay, my forefinger--hey, I like having a good extension cord that can carry the juice, the precious juice!

sflxn said:
I was having this problem a few days back but found a hint on one of the threads I found on the internet. I was using a USB extension cable with the Samsung charger. It was taking 1 hr just to charge 1%. Then I tried not using the extension cable. It's now charging 10-15% every hour. It's likely the calbe you're using is the problem. If it's not the original cable that came with the tablet, try that cable.
Click to expand...
Click to collapse
Thanks for your feed back. But I have tried this solution before and changed the cable with a good one.

skyhigh73 said:
Thanks for your feed back. But I have tried this solution before and changed the cable with a good one.
Click to expand...
Click to collapse
P605 here, and yes, it's normal, . It takes even longer if you're using it while charging. My philosophy is: "I sleep, he charges". Not perfect though, due to the amount of time I sleep, not much.

So my P600 Note 10.1 normally takes 5 hours to charge from 5% to 100% and the last 20% usually trickles and takes 2 hours. I remember someone on xda mentioning to unplug and then plug back when it hits 80%, so that's what I did yesterday and it took a total of 4hrs10mins from 5% to 100%. No idea how it made it charge faster but hey it worked.
P.s I use stock cable and plug.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Mine Note SM-P605 takes 5 Hours to charge and doesnt matter if have it turning off charging. Shouldnt it suppose to be around 3 hours charging time with qualcomms quickcharge 2.0?
0-100% 5-6H
10-100% 5H
How do peoples manage to get around 3H charing time with LTE version?
Im using battery monitor widget to monitor the charging, from start its around 1600mah and from 80-90% it start to drop to 1500mah-1000mah. From 90-100% it tickles down with 100mah for each 1% charge.
Is this normal? Im using Samsungs charger that comes with the box with EU adapter plug, since its HK version I got and if it does matter.

@dt33 i guess the EU adapter plug is the cause of slow charging. P605 should not be taking 5hours.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Geordie Affy said:
@dt33 i guess the EU adapter plug is the cause of slow charging. P605 should not be taking 5hours.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.
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Click to collapse
Id doubt that EU adapter is causing it and also tried with 3 different adapter. Since they just make HK 3 stick plug to EU 2 plug and doesnt convert electricity.
If any have SM-P605 version and can confirm with battery monitor widget.With history stats, how much mA does it charge bewteen 0-100% and is it same as mine does?
With sceen of:
0-80% - 1600-1700mA
80-90% - 1500-1000mA
90-100% - 900-100mA for each 1% it reduce with 100mA.
Does Qualcomm tickels down charging from 80-100% as Exynos version does?

It isn't the charger or the cable, it's something to do with the battery. I've had two different units in the past week or so that have taken over 7 hours and sometimes the charging stops before it is full and the discharge varies so much from 3 hours to 10 hours with the same things open and this happens on different chargers. Samsung agreed that both units were faulty, so enough is enough, I'm going to try something else.

After reading here and elsewhere about the GN 2014 charging time, I checked mine this morning. I wanted to do that before my 15 day return is up at Bestbuy. Yesterday, I ran the GN 2014 until it came with a screen and said to connect to charger. I think it was about 3% left.. This morning I put it on the charger at 7am.. at about 11, it was almost full, I unplugged it, and then plugged it back up again, and at 12 noon it reported 100%..
I have read that at about 80% on charging, it is real slow, and to un plug and re plug at that time helps..Anyway, 5 hours to 100% is normal, so I am okay.

dt33 said:
Id doubt that EU adapter is causing it and also tried with 3 different adapter. Since they just make HK 3 stick plug to EU 2 plug and doesnt convert electricity.
If any have SM-P605 version and can confirm with battery monitor widget.With history stats, how much mA does it charge bewteen 0-100% and is it same as mine does?
With sceen of:
0-80% - 1600-1700mA
80-90% - 1500-1000mA
90-100% - 900-100mA for each 1% it reduce with 100mA.
Does Qualcomm tickels down charging from 80-100% as Exynos version does?
Click to expand...
Click to collapse
what you need to test?
current i got HK version P605,
both au note2 charger and hk p605 charger

lopium said:
P605 here, and yes, it's normal, . It takes even longer if you're using it while charging. My philosophy is: "I sleep, he charges". Not perfect though, due to the amount of time I sleep, not much.
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Click to collapse
Very nice tip. I appreciate your tip: "I sleep, he charges".
Thanks for that.

ilovemeow said:
what you need to test?
current i got HK version P605,
both au note2 charger and hk p605 charger
Click to expand...
Click to collapse
Thanks for u offering, but it doesnt matter now and Im tired of Samsung. Too many buggs and none fixes and theirs customers support is none existens.
Now I also got black screen, waking it up from sleep, touch stopped responding or superlag (whatever its), cant swipe between home screens bla bla and couldnt either click on oki to reboot the device. A long press on power button for reboot is only choice.
Also suddenly battery drain from 100% - 97% just in 3 min for scrolling around home screen, appdrawer, open apps.
This tab just have too many issues and not worth mine time or buy.
Today at work, mine friend told me that his Note 8 LTE that he bought for 2 months ago, have also screen shaking problem as its with Note 2014.WTF is this?
Waiting for 4.4 and see if it resolves any of the problems. Or else, I just sell this **** and forget about Samsung.

Related

[Q] Is 6h Charge time normal?

Yeah, like topic.
6h is the charge time for my HOX, my 3gs was so much faster at charging so this just feels a bit retarded.
PoopTossnApe said:
Yeah, like topic.
6h is the charge time for my HOX, my 3gs was so much faster at charging so this just feels a bit retarded.
Click to expand...
Click to collapse
Mine went from 10% to 80% in 3 hours. Thats while playing music all the time and doing other stuff, basically never going to sleep, but screen mostly off.
Depends what you do with your phone really... if you use it actively with screen on, then very little juice is left to charge battery.
If it's first time charging then it also takes a bit longer.
mine went from 10% to 100% in 2hrs and a half
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It has now charged for exactly 5 h and is only at 78%
I have had it and used it for a week now, charge it daily.
Don't use it for anything when it is charging, because I want it to charge as fast as possible. The only thing I may do is start it sometime and make a note or something like that.
Guess I will exchange this phone for a new one.
Maybe it's the charger, not the phone? It's might not deliver standard 1 amper. For example PC/Laptop USB ports only supply half of that, so charge time will double.
If you don't have any app/service on the phone that keeps it busy AND the charger is working fine, then such a long time would be unusual.
Charging via what means?
The AC adaptor? i charge from that in a couple of hours
pc-USB? this can take longer since the pc-usb port will push out lower current plus you are more often than not doing other stuff while using the usb for data as well
schriss said:
Maybe it's the charger, not the phone? It's might not deliver standard 1 amper. For example PC/Laptop USB ports only supply half of that, so charge time will double.
If you don't have any app/service on the phone that keeps it busy AND the charger is working fine, then such a long time would be unusual.
Click to expand...
Click to collapse
eeyrjmr said:
Charging via what means?
The AC adaptor? i charge from that in a couple of hours
pc-USB? this can take longer since the pc-usb port will push out lower current plus you are more often than not doing other stuff while using the usb for data as well
Click to expand...
Click to collapse
I made sure to charge it in the wall, and not in a computer or anything other like that. Now that I think about it I have bin using a wallcharger/adapter from apple, that is made for the iphone (could also be from an Ipad, nut sure) but it says that the output is the same as on the HTC charger.
The only thing that has been running o the phone is wifi hotspot to my computer, could this bring it down?
Yes, WiFi on and actively used can slow charging down. Especially if you have enabled advanced wifi option for more performance.
For a piece of mind, do a test next time, disable WiFi and let the phone go to sleep as normal and see how quickly it charges then.
Any charger should work as long as it outputs 5V at more or less 1 amp
PoopTossnApe said:
I made sure to charge it in the wall, and not in a computer or anything other like that. Now that I think about it I have bin using a wallcharger/adapter from apple, that is made for the iphone (could also be from an Ipad, nut sure) but it says that the output is the same as on the HTC charger.
The only thing that has been running o the phone is wifi hotspot to my computer, could this bring it down?
Click to expand...
Click to collapse
You should at least try to charge it with the one x charger before assuming it's the phones fault.
PoopTossnApe said:
I made sure to charge it in the wall, and not in a computer or anything other like that. Now that I think about it I have bin using a wallcharger/adapter from apple, that is made for the iphone (could also be from an Ipad, nut sure) but it says that the output is the same as on the HTC charger.
The only thing that has been running o the phone is wifi hotspot to my computer, could this bring it down?
Click to expand...
Click to collapse
An iPad wall adapter doesn't charge my galaxy nexus or i9100 either. Use a different adapter.
Sent from my GT-I9100 using xda premium
wardh said:
You should at least try to charge it with the one x charger before assuming it's the phones fault.
Click to expand...
Click to collapse
Yes I agree, but did not think about this before, but charging it again now
So I think it did the trick to turn of wifi hotspot, now it looks like it wil charge in 2.5-3.5 h.

[Q] Power and charging

Hello, I read a youtube review that the charging for this device is 2A. She mentioned that it will take an entire night to charge the device. Moreover, while using the device during charging, it is possible that usage is faster than charging and the device runs out of power. Is this really true? Is there any better charger to charge the device quickly?
I have a PM-600 in the USA and mine charges within 3-4 hours and NEVER does it charge slower than drain! I've owned mine since October and have at least 50 downloaded apps, watch vids and use A LOT of Email (3 accounts) and social networking (5 accounts and apps syncing)! The reviewer Was probably using a defective unit or has a bad app!
Sent from my SM-P600 using XDA Premium HD app
I had the same concerns about charging when I first got this tablet. Over several nights and days I could not get the tablet to charge fully.
I googled a bit and someone online suggested unplugging the usb cable from the wall transformer and reconnecting firmly. While a simple fix, this worked completely. Seems to be a common problem across Samsung devices.
With the stock charger it takes mine at least 6 hours to charge. I havent tried with my other 2.1 amp chargers...
Sent from my SCH-I925 using xda app-developers app
grmcrkrs said:
With the stock charger it takes mine at least 6 hours to charge. I havent tried with my other 2.1 amp chargers...
Sent from my SCH-I925 using xda app-developers app
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Click to collapse
Should not take that long to charge. Charging time should be around 4 to 5 hours from 0%
Sent by my Note 10.1 2014
benni2903 said:
Should not take that long to charge. Charging time should be around 4 to 5 hours from 0%
Sent by my Note 10.1 2014
Click to expand...
Click to collapse
I found the problem. Fixed it with the original cord only, no extension cables.
(and, I mistakenly had bought the 2012 version, but I just returned it)

[Q] Note 10.1 2014 charges very slowly

I just bought a new Note 10.1 2014 edition, everything works fine, except the battery takes 30 hours to charge to 100%!
The screen was off the entire time it was charging, but the device was still on, in airplane mode, with power saving mode on and the gps was off.
I'm using the stock samsung charger I got with it, but with a american-european converter, although I don't think that should matter, because on the box it said it could take over 10A, and the stock samsung charger is 2.0A.
The device doenst register the charger as a USB or anything, it realizes that it's charging via AC.
Is my cable, samsung charger or converter just dirty/broken? or is there something wrong with the device?
ps, I have Cleanrom 2.0 installed, and use some Gravity Box tweaks
Thanks
RuteNL said:
I just bought a new Note 10.1 2014 edition, everything works fine, except the battery takes 30 hours to charge to 100%!
The screen was off the entire time it was charging, but the device was still on, in airplane mode, with power saving mode on and the gps was off.
I'm using the stock samsung charger I got with it, but with a american-european converter, although I don't think that should matter, because on the box it said it could take over 10A, and the stock samsung charger is 2.0A.
The device doenst register the charger as a USB or anything, it realizes that it's charging via AC.
Is my cable, samsung charger or converter just dirty/broken? or is there something wrong with the device?
ps, I have Cleanrom 2.0 installed, and use some Gravity Box tweaks
Thanks
Click to expand...
Click to collapse
If you have the Snapdragon P605 , then this should take around 3-4 hours for full charge from 0%, while Exynos processors P600/601 normally takes 5-6 hours charge time.
So probably you have a defected or malfunctioning charger or cable , try charging without the converter & see if the case is still the same , then that will be either a faulty cable or charger.
RuteNL said:
I just bought a new Note 10.1 2014 edition, everything works fine, except the battery takes 30 hours to charge to 100%!
The screen was off the entire time it was charging, but the device was still on, in airplane mode, with power saving mode on and the gps was off.
I'm using the stock samsung charger I got with it, but with a american-european converter, although I don't think that should matter, because on the box it said it could take over 10A, and the stock samsung charger is 2.0A.
The device doenst register the charger as a USB or anything, it realizes that it's charging via AC.
Is my cable, samsung charger or converter just dirty/broken? or is there something wrong with the device?
ps, I have Cleanrom 2.0 installed, and use some Gravity Box tweaks
Thanks
Click to expand...
Click to collapse
I have the 600 and it takes 3 to 4 hours.
lsherif said:
If you have the Snapdragon P605 , then this should take around 3-4 hours for full charge from 0%, while Exynos processors P600/601 normally takes 5-6 hours charge time.
So probably you have a defected or malfunctioning charger or cable , try charging without the converter & see if the case is still the same , then that will be either a faulty cable or charger.
Click to expand...
Click to collapse
I'm using the stock cable. I usually cut my device off to charge.
Sent from my SM-P600 using XDA Premium 4 mobile app
Must be the converter mate because 10hrs is too long.
Geordie Affy said:
Must be the converter mate because 10hrs is too long.
Click to expand...
Click to collapse
It`s 30 hours as he mentioned not 10 hours
lsherif said:
If you have the Snapdragon P605 , then this should take around 3-4 hours for full charge from 0%, while Exynos processors P600/601 normally takes 5-6 hours charge time.
So probably you have a defected or malfunctioning charger or cable , try charging without the converter & see if the case is still the same , then that will be either a faulty cable or charger.
Click to expand...
Click to collapse
I have p600 and the charge from 5/6 to 100% is about 4 hours
lsherif said:
It`s 30 hours as he mentioned not 10 hours
Click to expand...
Click to collapse
Oh I misread that lol....blimey 30hrs!!!

			
				
BarryH_GEG said:
Click to expand...
Click to collapse
You lie.... Mine takes 4 - 5 hours tops...
ultramag69 said:
You lie.... Mine takes 4 - 5 hours tops...
Click to expand...
Click to collapse
It does if you have a P-605 with Qualcomm's QuickCharge feature. See the pretty little stylized "A" in the upper left corner of the graphic I posted? It's the AnandTech logo. They don't lie and have been performing objective standardized tests on mobile devices longer than you've been an XDA member (2007). If my choice is believing their 7 hours and your "4-5 hours tops" guess who I and most people here are going to believe? And my P-601 does take about 7 hours to charge which is a hella long time especially when you're traveling.
BarryH_GEG said:
It does if you have a P-605 with Qualcomm's QuickCharge feature. See the pretty little stylized "A" in the upper left corner of the graphic I posted? It's the AnandTech logo. They don't lie and have been performing objective standardized tests on mobile devices longer than you've been an XDA member (2007). If my choice is believing their 7 hours and your "4-5 hours tops" guess who I and most people here are going to believe? And my P-601 does take about 7 hours to charge which is a hella long time especially when you're traveling.
Click to expand...
Click to collapse
LOL, I'm literally timing mine as I type this - I will report back the exact time it takes from 5% to 100% - Using the standard wire and socket Samsung provided. Curios if people timed their devices if they would all be the same time frame - I know my first tablet took something around 6hrs to fully charge will see what this one is like.
mine charges at 21-24% per hour up until 80% where the trickling starts. at that point it constantly takes 90 minutes to top it off. i doubt that anand lies, but he's only testing one sample and he's reporting what he gets from it. mine takes 4-5hrs depending on how frisky the tablet feels in taking some juice.
i don't have any logs so bmw pro but if i ever remember to let it drop down so i can get a long charge logged i try and post it.
it's not like any of us are gaining any internet fame by reporting a 5hr charge or getting any pay.
cables do affect the charge rate a lot. so if you get less than 5hrs then check another cable. this this is very pick on the cable for some reason.
mine takes 3-4 hours....its a p605 probably you have a defective piece or try another power outlet
Po678 said:
mine takes 3-4 hours....its a p605 probably you have a defective piece or try another power outlet
Click to expand...
Click to collapse
Holy crap. Just like the Exynos/S-800 N3, the Exynos/S-800 N10.1-14's use different charging circuitry and get very different results. AnandTech tested an Exynos P-600. Like my Exynos P-601 it takes 7 hours to charge from 0-100%. People with S-800 N10.1-14's have been reporting getting a full charge in 5ish hours which is about the percentage difference between the two different N3's. You'll also notice the second runner up in longest charging time is the Exynos-based N10 which, like the N10.1-14, uses a microUSB port to charge. If you adjust for the smaller battery, the Exynos N10.1-12 with a 30pin connector charges about 20% faster than the N10.1-14 with a USB charging port. N10 owners that bought the optional pogo pin charging module have been able to shave about 30ish% off their charging time which means it's not the battery or SoC causing prolonged charging times via USB on the N10.1-14 and N10.
Conclusion?
The P-605 is one of the fastest (if not the fastest) large format tablets.
The P-600/1 are slugs which is probably as much due to microUSB as a charging port rather than what the battery/SoC can handle as evidenced by the N10's improved performance when using pogo pins.
P.S. - Here's the N10's charging graph (via USB) and it's pretty linear. So Samsung (who builds the N10) may have done something in terms of faster charging mid-charge for the N10.1-14 but if they have that power they certainly didn't apply it on the N10.
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P.S.S. - P605 owners go away. "Slow charging" has nothing to do with you and you're just muddling the thread which admittedly should (re)titled "Exynos N10.1-14 Takes Forever to Charge."
BarryH_GEG said:
P.S.S. - P605 owners go away. "Slow charging" has nothing to do with you and you're just muddling the thread which admittedly should (re)titled "Exynos N10.1-14 Takes Forever to Charge."
Click to expand...
Click to collapse
That's a bit harsh and funny at the same time :laugh:
Geordie Affy said:
That's a bit harsh and funny at the same time :laugh:
Click to expand...
Click to collapse
Their belligerently calling people liars and making it seem that people posting different result are daft. If you can dish it out you should be able to take it. But seriously, this thread's very poorly named as it doesn't identify that only the P-600/1 are slow charging. I knew that from other discussions already had on this forum. So, while maybe a tad belligerent in their approach, people that didn't know there were differences between the Exynos and S-800 versions of the N10.1-14, could have assumed they were the same.
Here's the difference between a device using Qualcomm's P4981 dedicated charging module (QuickCharge) and a device using standard charging circuitry. Pretty impressive. Numbers below are for a 3,300mAh battery. And the dedicated charging circuit is what makes charging via USB mute on S-800 devices.
Okay here are my charging results which I have timed.
Started charging 16:20 @ 5% - https://www.dropbox.com/s/yeoup9hafrmw93q/Screenshot_2014-01-13-16-17-41.png
Finished charging @ 21:25 @ 100% - https://www.dropbox.com/s/gxmcpp0aq9od5l2/Screenshot_2014-01-13-21-24-28.png?m=
So charge time of 5 Hrs - like its been said, it charged very fast till 85% then slowed right right down!
Mind you I did not use the tablet at any point apart from lifting the book cover to see progress. Personally I think the charge times is alright.
Here's a little food for thought from the SGS4 forum. It doesn't matter if the device being tested is Exynos or Qualcomm since QuickCharge was introduced with S-800.
spark001uk said:
With the advent of the S4, and its higher capacity battery, one could understand a higher charging current. However, I seem to have uncovered some findings that the charging system on the S4 is a bit more complex than first thought!
This is a bit techy, and assumes you have a basic amount of electrical knowledge, ie voltages, currents, resistance etc., but I'll try and keep it as simple as possible for anyone who may not!
To explain: The mains charger supplied with the S4 is a model number ETA-U90UWE, rated 5V @ 2A. However, the phone will ONLY charge at full current (which as I have measured so far, depending on what the phone regulates it to, typically sits in the region of 1.2 - 1.5A), when using the supplied charger (or possibly one of equal or higher current rating, depending on how it's configured internally), AND the supplied usb cable, OR any other usb cable, provided its shielding (the metal outer surface of the connectors) is connected at BOTH ends of the cable. Use a cable that doesn't have this shielding, and the charge current drops, regardless of whether there is plenty of current available or not. Use a different charger with an unshielded cable and the current drops even more, again regardless of whether it can supply plenty more current.
My assumption on this, is possibly an effort by Samsung to avoid the scenario of sticking 1.5 amps down a flimsy cheapo cable, the wires of which will likely be too thin to carry it.
After doing some probing around with a meter, I have managed to find a slight difference with the charger itself, compared to a generic one. In a generic one, the two data pins are usually just shorted together, which tells most phones that it's a mains charger rather than a USB port. On the Samsung one on the other hand, the pins appear to be shorted together, and also connected via resistors across the supply line (known as a potential divider), which holds these shorted data pins at a certain voltage. This is what tells the phone what sort of charger it's connected to.
Attached are a couple of diagrams to show the difference between the two chargers. There are in fact various setups of resistors that different manufacturers use to set the charging current, so it's quite easy to run into compatibility issues!
To make this a little less confusing I have done some preliminary experimenting, and I set out my results here.
For the test, I used combinations of 4 different usb style mains chargers: an apple iPhone one rated at 1A, an iPad one rated 2.4A, an HTC 1A one, and the genuine S4 one. With these I used two cables - the supplied Samsung S4 one (which is shielded), and a cheap generic one (which isn't). I started by measured the charging current directly with a meter, by using a very short usb breakout lead I've made, enabling me to interrupt the 5V line. However, I soon noticed that the use of any extension cables, even shielded, can lessen the chance of maintaining a good shielding connection, so I continued the exercise relying on the "galaxy charging current" app to get a reading.
Charger.................... Cable................ Current (A)
=====================================
HTC 1A.................Generic..................... 0.5
HTC 1A.................Samsung S4..............1.0
Apple 1A...............Generic......................0.5
Apple 1A...............Samsung S4..............1.0
Apple 2.4A............Generic......................0.6
Apple 2.4A............Samsung S4..............1.3
Samsung S4.........Generic...................... 0.8
Samsung S4.........Samsung S4...............1.3
So as you can see from these results, the original charger makes a difference, and the supplied cable (or a good quality shielded one) makes a further difference. If you have any further findings please feel free to add them here.
I can see that this is going to confuse some people, as it has me, as I'm sure some will inevitably try charging up their phone on generic chargers/leads at some point, with potentially long charging times resulting!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2274321
that's been my experience. i've gotta make sure that i have the right cable AND charger to get the full blast - using p600. the fastest charge comes from the stock charger and a car charger i have (powergen 2.1A). no charger has ever reached 2A and the highest i've ever seen is 1.6A.
regardless of the fact that one's tablet may charge a few hours faster than someone else's - five+ hours for a charge is waaaaaaayyyyy to freaking long! my samsung ativ 500t has about the same battery capacity but charges in 90min. the 700t charges in 2hrs. of course using 12V 3.3A charger is giving a lot more juice than a 2.3A 5V charger is, lol.
one thing i noticed is that occasionally, the trickle ( charging past 80%) would sometimes drop to 300MAh instead of the normal 600 to 900. if i catch it, i just unplug it and replug it and it's back to normal. dunno what causes this though.
madsquabbles said:
one thing i noticed is that occasionally, the trickle ( charging past 80%) would sometimes drop to 300MAh instead of the normal 600 to 900. if i catch it, i just unplug it and replug it and it's back to normal. dunno what causes this though.
Click to expand...
Click to collapse
Oh! Didn't even think of that - will give it a try next time and see if it speeds things up.

[Q] N900T Extremely Slow to Charge- Tips?

Hello,
I bought a gently used N900T a few days ago. The device is awesome and works perfectly, except for one thing. Charging the phone with the Samsung charging cable+ac adapter takes longer than forever. It charges at a rate of approximately 8-9% per hour.
A few notes:
Device on, device off, it doesn't matter. It charges at the same slow rate.
The battery itself, once it charges, holds that charge very well.
The slow charging happened both when I was on the stock rom and on my current Slim Rom.
I have ordered a new charger and a new battery. If the slow charging persists with these new accessories, am I doomed? Is the slow charging a known issue for the Note 3? Besides the new equipment, does anyone have any advice on how to solve this?
Thanks so much!
JJ2525 said:
Hello,
I bought a gently used N900T a few days ago. The device is awesome and works perfectly, except for one thing. Charging the phone with the Samsung charging cable+ac adapter takes longer than forever. It charges at a rate of approximately 8-9% per hour.
A few notes:
Device on, device off, it doesn't matter. It charges at the same slow rate.
The battery itself, once it charges, holds that charge very well.
The slow charging happened both when I was on the stock rom and on my current Slim Rom.
I have ordered a new charger and a new battery. If the slow charging persists with these new accessories, am I doomed? Is the slow charging a known issue for the Note 3? Besides the new equipment, does anyone have any advice on how to solve this?
Thanks so much!
Click to expand...
Click to collapse
Rooted? What kernel? Is fast charge supported?
TWEAKED N3
BACARDILIMON said:
Rooted? What kernel? Is fast charge supported?
Click to expand...
Click to collapse
Rooted running Slim Rom v8 and LeanKernel 1.2. I'm unsure if a fast charge feature is supported.
Dude this phone charges pretty fast without any roms or mods. ..it charges fast out of the box. .. Are you using the charger that comes with...correct me if I'm wrong but I think the charger that Came with this is usb 3.0....not your regular usb charger. ..
Sent from my SM-N900T using xda app-developers app
mlock420 said:
Dude this phone charges pretty fast without any roms or mods. ..it charges fast out of the box. .. Are you using the charger that comes with...correct me if I'm wrong but I think the charger that Came with this is usb 3.0....not your regular usb charger. ..
Sent from my SM-N900T using xda app-developers app
Click to expand...
Click to collapse
I am using a genuine Samsung Note 3 charger. The replacement coming is another genuine Samsung Note 3 charger. I'm sincerely hoping the one I have now has a cable problem or something. I really, really like the phone but I'm wondering if anyone else has seen a similar story or knows of a possible solution in the case that the new charger+battery do not work.
JJ2525 said:
I am using a genuine Samsung Note 3 charger. The replacement coming is another genuine Samsung Note 3 charger. I'm sincerely hoping the one I have now has a cable problem or something. I really, really like the phone but I'm wondering if anyone else has seen a similar story or knows of a possible solution in the case that the new charger+battery do not work.
Click to expand...
Click to collapse
Swap to any other kernel and test it out.
TWEAKED N3
BACARDILIMON said:
Swap to any other kernel and test it out.
Click to expand...
Click to collapse
As I noted, the slow charging happened on both stock rom+kernel as well as custom roms.
JJ2525 said:
As I noted, the slow charging happened on both stock rom+kernel as well as custom roms.
Click to expand...
Click to collapse
So this has been doing it from day one. On your white wall charger how many amps does it say.
TWEAKED N3
It is a genuine Note 3 2 amp charger.
Lol damn 8% an hour? Sounds like mine kinda except it charges like 20% an hour it used to charge so slow. The ROM I'm running took some stabilising
chuko303 said:
Lol damn 8% an hour? Sounds like mine kinda except it charges like 20% an hour it used to charge so slow. The ROM I'm running took some stabilising
Click to expand...
Click to collapse
Well I have to be honest from dead it takes about 2.5hrs to get back to 100. On stock.using the wall charger with 2amps. When he gets his new charger he should be good or a good kernel swap. Either way it should come back to normal
TWEAKED N3
I got a new charger and it's still charging at the same slow pace. What could possibly be wrong with my phone? The battery holds a charge, the phone works near flawlessly. I'm dumbfounded.
JJ2525 said:
I got a new charger and it's still charging at the same slow pace. What could possibly be wrong with my phone? The battery holds a charge, the phone works near flawlessly. I'm dumbfounded.
Click to expand...
Click to collapse
You gonna have to do testing or replace phone. Me I would change kernel just cause it takes 2 seconds. Let it ride a day if no change then a factory refresh. You have checked that no app is killing phone as fast as it charges right?
TWEAKED N3
Edit. I was just on his thread and a few guys having issues with either bad batter. UV/ oc .try a different ROM and kernel. Fresh install meaning Odin back to stock and start all over. Sorry good luck
As weird as this sounds, I tried the charger in a different outlet in my home and it works a lot better. The battery charges quite fast from any level to about 96%, then starts crawling again to 97, 98 and stops at 98. I opened battery calibration, which shows the battery at 96% and 4337mv, which is the same mv level as 100% normally if memory serves me correctly. So I'm thinking the battery is "full", but for some reason won't go to 100% without a fight. Perhaps if I clear my cache+dalvik cache? Any other suggestions?
JJ2525 said:
As weird as this sounds, I tried the charger in a different outlet in my home and it works a lot better. The battery charges quite fast from any level to about 96%, then starts crawling again to 97, 98 and stops at 98. I opened battery calibration, which shows the battery at 96% and 4337mv, which is the same mv level as 100% normally if memory serves me correctly. So I'm thinking the battery is "full", but for some reason won't go to 100% without a fight. Perhaps if I clear my cache+dalvik cache? Any other suggestions?
Click to expand...
Click to collapse
ROM toolbox Pro has a script to reset battery stats.
Sent from my rooted Note 3 (N900T) using XDA Premium
Can someone give me link to odin back to stock please
Sent from my SM-N900T using XDA Premium HD app
What was wrong with mine it was the charger. The usb wasn't connected all the way in the AC therefore was only charging like it would through computer as soon as I fixed it with a blow of air and a gentle push it right away started charging AC phone charged in 2 hours
I could be wrong but I noticed my charging is slower when I stick my charger into a surge protector power bar as opposed to a standard wall outlet.
Mine was the charging cable I used a regular USB charger cable and it charge fast
Sent from my SM-N900T using xda app-developers app

Any issue with your new Note 7? Read this...

Some complaints about the replaced Note 7 which have safe batteries, in South Korea.
http://www.androidheadlines.com/201...ery-issues-noted-by-galaxy-note-7-owners.html
What's your take on this? Anyone experiencing the same issues?
Updated:
Started a Poll on the subject. Please participate!
http://forum.xda-developers.com/poll.php?do=showresults&pollid=23806
Tnx!
Battery-gate has everyone paranoid.
This sounds like BS. When Samsung investigated 90+ cases of exploding batteries, it found that 26 reported cases were fraudulent scams - this was in the news today.
It sounds like the same ****.
andyahs said:
Battery-gate has everyone paranoid.
Click to expand...
Click to collapse
^^^^^
This.
I would believe the below from the article before I'd believe Samsung's stupid enough to make the same or similar mistake twice. I was worried about QC on the replacements considering how fast they're racing down the production line. Mine's perfect BTW. Any articles about Samsung because of what's happened is guaranteed click-bait. A Note 2 overheating on a plane made front page news with whatever (still to be determined) happened to it being tied back to the Note7 issue.
"The issues being reported in South Korea are related to minor errors with the mass production of the new units."​
I m not seeing anything near this. in fact my SD820 device runs better than the original did
cordell12 said:
I m not seeing anything near this. in fact my SD820 device runs better than the original did
Click to expand...
Click to collapse
Mine seems too also but I thought it was all in my head. It seems smoother and snappier for want of better words. My old phone would occasionally get choppy and stutter as if it was struggling with something in the background. The new one doesn't. It's on AT&T and the new phone's shipping s/w was the same as the old phone's updated s/w. Curious.
My s7 edge and note 7 (both exploding and non-exploding versions) have always had times where they charge slower than they discharge. (Waze + Pandora when it is super sunny, so 100% brightness. Even on QC2.0.)
The new note7 (and/or new firmware) pops up a warning to say as much. The S7E had an overheat warning that came up occasionally in similar conditions (even air-conditioned, DC summer is warm..)
I think the only difference is the notification that its happening, which is nicer than discovering after a drive that you have been losing power the whole time.
I'm experiencing the very slow charging issue. In fact when I was watching a movie while fast charging it was losing charge!?
Sent from my SM-N930V using Tapatalk
I have experimented the same thing, actually ending with less batt while using and charging with other devices, so, this happening with the note 7 indicates nothing wrong with the batt
Customers in South Korea who received a replacement device have reportedly complained the phone's battery is overheating and drains too quickly after use, according to a report by YTN, a TV network in the country.
nomailx said:
Some complaints about the replaced Note 7 which have safe batteries, in South Korea.
http://www.androidheadlines.com/201...ery-issues-noted-by-galaxy-note-7-owners.html
What's your take on this? Anyone experiencing the same issues?
Click to expand...
Click to collapse
Fast charging does not seem to want to work on my new one, with stock charger brick and cable. I am hoping I don't have to go BACK to TMo and get another new phone.
my replacement seems identical to my original, same charge speed, same discharge speed.
as for the people saying about watching movies and such and the battery ending up lower, that is normal, if you are running the screen and charging not only does the battery get warm, so does the CPU so the phone will start to throttle the charging. I've had phones in the past that refused to charge once the CPU got above a certain temperature. this is just people being paranoid or looking for a way to get money as mentioned above with the fake tales of exploding batteries.
Disconn3ct said:
My s7 edge and note 7 have always had times where they charge slower than they discharge.
Click to expand...
Click to collapse
Odd. I use my Note7 (pre and post replacement) with Android Auto via USB. Android Auto really puts a load on the phone. Even off the wimpy output from my car's USB port the phone never loses charge and frequently gains it. My previous Note5 was the opposite. It would stay even most of the time but would lose charge on occasion. The only difference between the two scenarios is I got a Orange-E 12" Type C USB cable to use with my Note7. So my experience is different than yours.
I suspect the screen is the big drain. 100% brightness is vicious. Isn't the screen off for android auto?
Things it's usually doing when it drains (starting from 70% or so) :
Overheating (direct sun, no ac pointed at dash or top/doors off)
BT music streaming + wear
GPS
100% brightness
QC2 (aukey car charger)
Even without overheating that combo usually only gains me about 5% over 30 minutes.
Unrelated, but without getting too far off topic is AA worth the jump? (~900USD if I want my steering wheel controls and stuff)
Sent from my SM-N930T using Tapatalk
Disconn3ct said:
I suspect the screen is the big drain. 100% brightness is vicious. Isn't the screen off for android auto?
Click to expand...
Click to collapse
Yep. When in use and the display is on its black with the Android Auto logo. But the phone's still using all its radios and if navigating pushing data to an 8" display so the phone's definitely under load. I have a Samsung Fast Charge car adapter but the problem with Android Auto is it doesn't let you connect by BT so the car's USB power output is all you get. But as a comparison under the exact same conditions the Note7 definitely either drains less or gets more power than my previous Note5 and both phones are/were configured identically.
BarryH_GEG said:
Yep. When in use and the display is on its black with the Android Auto logo. But the phone's still using all its radios and if navigating pushing data to an 8" display so the phone's definitely under load. I have a Samsung Fast Charge car adapter but the problem with Android Auto is it doesn't let you connect by BT so the car's USB power output is all you get. But as a comparison under the exact same conditions the Note7 definitely either drains less or gets more power than my previous Note5 and both phones are/were configured identically.
Click to expand...
Click to collapse
A black screen with amoled means the only pixels lighting up are the ones in use. The screen itself is a massive drain so the more pixels are lit up, the more the juice is drained from the battery. That's why AOD doesn't kill the battery fast.
Sent from my SM-G935T using Tapatalk
Ive used a USB multimeter on both my old and new note7.
No matter what, old or new note7, the charging rate gets cut exactly in half when charging with the screen on. This happens when using a quickcharger or a normal 2.4a 5v charger.
So if you want full speed charging the screen needs to be OFF.
Sent from my SM-N930T using Tapatalk
On my replacement Note 7 I noticed that if you are doing allot with the phone, it still gets hot, the battery does take a little longer to charge with both the Samsung charger that came with the phone and an Anker IQ 2.0 / 3.0 charger. The phone does seem a little snappier/faster though.
I just want a removable battery to end all this bull * and I will pick the battery I want to power my phone.
Snowleopard1900 said:
On my replacement Note 7 I noticed that if you are doing allot with the phone, it still gets hot, the battery does take a little longer to charge with both the Samsung charger that came with the phone and an Anker IQ 2.0 / 3.0 charger. The phone does seem a little snappier/faster though.
I just want a removable battery to end all this bull * and I will pick the battery I want to power my phone.
Click to expand...
Click to collapse
The biggest advantage for the integrated battery is that the unit is completely sealed from water.
Sent from my SM-G935T using Tapatalk
pyraxiate said:
The biggest advantage for the integrated battery is that the unit is completely sealed from water.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
I beg to differ, because they have that wireless backpac battery that is completely sealed from water for the Note 7. The purpose of the permanently installed battery is for the NSA to track people since the battery cannot be removed from the phone.

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