Develop Bugs

[Q] Slow Charge

Not sure if this is an issue, or if its standard. But here is what im facing.
A charge off the wall will get my Tmobile SGS2 to a full charge (from around 15%-20%) with the stock plug and cable in about an hour to an hour and a half. However charging from my laptop or from a car charger im only getting a total increase in battery 15% in an hour. I tried to use the stock cable with the laptop and got about 25% in an hour and a half. I tried to use the stock cable in my car and only got 7% in 45 minutes.
Anyone have any ideas?

When charging from the car or from a laptop, the power is limited to what the cable/charger can supply which might not be sufficient for the SGS2. For the car charger, you can try buying one that supplies more amps, but for the laptop, theres really nothing you can do, as it is limited by the USB cable itself.

Do you mean the USB cable or do you mean the actual plug & internal workings of the laptop? because i have tried several cables. And just also remembered that i tried the stock cable as well with crappy results.

you can buy a 2A charger, and it will charge a lot faster, that's what i use in my car
at home or office, i just use the regular charger, as i always carry extra battery packs

When you plug it into the laptop it only gives out a limited amount of amps unlike the regular charger that came with the phone. The one that came with the phone regulates the charge so that it doesn't overcharge your device or anything. The laptop USB plug is supposed to be meant for peripherals like a mouse and stuff so it doesnt give out that much amps, therefore charging slower than a regular charger.

I use the t-mobile rapid car charger, It can charge this beast in about 45 minutes. It also has a 2nd port for a 2nd device.
Deebo took your bike too?

Really?! I've never seen my charging current go over 700 mA, even with a 2 amp charger.
I'd happily give up some long-term lifetime for faster charging.
Sent from my Galaxy S II using Tapatalk.

They have a home charger too that's a home charger plus car charger in 1. I use them in the cars but they're great for trips cause you have a 2 in 1 charger.
With 3 batteries and a external charger though, I never need a home charger and haven't even put this on a charger yet.

Just as most of the others have said here, the charge is going to be limited to what the source can put out. If you get another charger (2A charger) then it will be able to charger faster but you also want to be careful with using after market chargers there are some that can negatively affect your battery by overcharging which is when the phone gets fully charged but the charger does not ever stop with the flow of power to the device.

Ok Thanks all.
Guess i need a new car charger and something for the office.
Also did some crawling through "Mother of all battery life" thread found some good ideas there for making this thing last longer on the charge its got.

Im having the same problem my fone takes forever to charge...im pluged into the wall using the charger in the box n it took me no joke 7 hours to charge my fone!
Im on it rite now as its plugged i to the wall n im losing power instead of charging...i tested the voltage n its fine ...is tgere anythin i can do?
Sent from my SGH-T989 using XDA Premium App

I, myself, actually haven't used the OEM charger that came with the phone. Although I did notice it is quite small and the phone battery is a 1850mAh (larger than normal) that might affect the charging rate. I am currently using the old HTC charger that came with my Sensation and it charges fully in about 2 hours. If you want a charger that charges your phone in an hour and a half, I recommend going into a T-mobile store and grabbing the Wallcharger they sell. It charges 33% faster than OEM chargers and does not harm your device nor kill your batteries.
You can find it by clicking here

Exactly same problem as OP.
OEM wall charger charges phone to full in couple of hours but laptop USB or car USB is doing at 10% / hour assuming you don't do anything on your phone but just leave it there to be charged. Otherwise you'll be losing battery rather than being charged.

513263337 said:
Exactly same problem as OP.
OEM wall charger charges phone to full in couple of hours but laptop USB or car USB is doing at 10% / hour assuming you don't do anything on your phone but just leave it there to be charged. Otherwise you'll be losing battery rather than being charged.
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Click to collapse
As explained in previous post, this is due to limitations in the laptop USB drive and depending on what car charger you have, the phone might suck up more juice than it is able to provide.

so this is nothing a kernel or any other tweak can fix?

mightymike889 said:
so this is nothing a kernel or any other tweak can fix?
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Click to collapse
no a new kernel or any other tweak wont work.

So i gotta buy a new charger!?!
Sent from my SGH-T989 using XDA Premium App

Yes, or if you have like an old microUSB charger from HTC or another Samsung phone (Samsung Vibrant) you can try using those.

the 2A chargers from BlackBerry are the best

So, you guys are seeing the phone draw over 700 mA (when the charger is capable)?
If I use my iPad charger (2A), I still top out at 700 mA, and the ~4 hours that go with it. :/
Even my 1A car charger tops out at 700 mA, that's why I thought it was a hardware issue.
Sent from my Galaxy S II using Tapatalk.

Battery draining while plugged in to charger

I was watching the Mavericks vs Thunder game using the watch ESPN app and my nexus battery was at about 93%
I watch since halftime to the end of the game and I was plugged in to a car charger the whole time and when the game ended about 1 1/2 hrs later the battery had dropped to 53%. Can't understand it. Hope someone here can explain this to me.
Phone is galaxy nexus, obviously, the battery is the 2100 OEM battery from Verizon store, charger is a belkin dual outlet 1amp micro car charger with the cable that came with a Droid charge.
Thanks in advance ladies and gentlemen, I did look and search, didn't fins anything covering this specific issue.
Sent from my Galaxy Nexus using xda premium

i am 99% sure its the car charger. but cant give u a reason

rfvreynoso said:
Phone is galaxy nexus, obviously, the battery is the 2100 OEM battery from Verizon store, charger is a belkin dual outlet 1amp micro car charger with the cable that came with a Droid charge.
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5V right? that's not a huge draw at all on your battery, i'm assuming your car was either running or started right up afterwards...you can be certain your phone was getting that full 1A especially if your car was running. if your phone showed charging and your phone will normally charge from your car like that then you shouldve been in good shape. despite what you may think, i actually am trying to present relevant info lol but ummm other than that? i would definitely try a multimeter (.....if you have one.....) cuz that would show you exactly what you're getting in/out. usb pinouts should be somewhere on the internet. other than that, try doing the same thing (except for maybe a shorter time period if preferred) on a wall charger which should be more reliable and compare results. i've had devices that burn power faster than they receive them....but the good ole gnex? im not so sure. (engineer here).

I just recently join big red and coming from sprint with an evo 4g and didnt have this issue with that phone and same charger. I'm definitely going to try it with home charger to see if its the charger.
Extra info, the vehicle was powered on before I plugged in the charger, in case it matters any.
Thanks to all the reply thus far.
Sent from my Galaxy Nexus using xda premium

I find that under heavy usage, only the plug in wall charger gives enough juice to keep it increasing... and even that can go flat or decrease if you are really pushing it... also the way the battery stats are displayed can be flaky too... jumps in the level of charge and quick drops... hard to tell how accurate the reading is.

I hear you. That's crazy, basically the phone draws more power that the charger can provide. I would think the charger should be fine since its 1 amp just like the home charger.
Sent from my Galaxy Nexus using xda premium

Check in settings - status if it says charging (ac) or charging (usb) when plugged in you car.
If it says charging (usb) the charge amps are limited to 500mA.
Sent from my Galaxy Nexus using Tapatalk

The phone can use more power than a car charger can supply. This is commonly posted all over. Check your car charger, its likely a 0.5 amp. Buy a 1 amp or higher.

rfvreynoso said:
Phone is galaxy nexus, obviously, the battery is the 2100 OEM battery from Verizon store, charger is a belkin dual outlet 1amp micro car charger with the cable that came with a Droid charge.
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Click to collapse
Your problem is the charger, 1 amp is the sum of the two outlets, hence you're only giving your phone 500mA max. When charging at that low of a rate, you'll drain the battery when doing anything power intensive on the phone. Your only remedies for this is to get a car charger that's capable of putting out 1 amp or more on a single line. What I personally did was get the Griffin Powerjolt dual charger for $8 on Amazon, opened it up, and soldered the center data pins on each port together.

najaboy said:
Your problem is the charger, 1 amp is the sum of the two outlets, hence you're only giving your phone 500mA max. When charging at that low of a rate, you'll drain the battery when doing anything power intensive on the phone. Your only remedies for this is to get a car charger that's capable of putting out 1 amp or more on a single line. What I personally did was get the Griffin Powerjolt dual charger for $8 on Amazon, opened it up, and soldered the center data pins on each port together.
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I though that the griffin powerjolt dual outlet charger would dish out 1amp on a single port if the 2nd port was not being used. Interesting, I can see your point. Would you happen to have a picture of, or remember which are the two that need to be bridge inside to make it a full 1amp output?
Thanks in advance.
Sent from my PC36100 using xda premium

Herman76 said:
Check in settings - status if it says charging (ac) or charging (usb) when plugged in you car.
If it says charging (usb) the charge amps are limited to 500mA.
Sent from my Galaxy Nexus using Tapatalk
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Click to collapse
Okay, I tried what you said and I got weird results. I used the awkward griffin powerjolt dual outlet car charger. I tried using two different cables, one was from my girl's Droid charge and when I plugged it in and check the status it said usb charging, then I plugged in a cable that came with a i go green adapter that I had purchased at an airport and the phone said ac charging. Unless the cable that came with the Droid charge can only pass 500mamp, I'm puzzle.
Both were plugged in at same time and also both cables were tried by themselves in each outlet of the griffin charger by themselves.
Interesting huh. I will keep testing and see what gives, last resort I get a more powerful car charger. Will keep you guys posted, thanks to everyone that contributed and pitch in thus far.
Sent from my PC36100 using xda premium

Got an update on this issue. I streamed another 45 mins to 1 hr of ESPN using watch ESPN app and the results are even more interesting. I was using the wall charger that came with the Droid charge and the USB cable that came with the I go green wall adapter that I have purchased at an airport a while back. Here is what happened, when I started streaming the battery was at 94% and I plugged in phone to charger and under settings/about/status it showed AC charging. After 45 mins to 1 hr of streaming the phone was extremely Hot towards the center of the back and below the cam lenses and led light. Also the battery had dropped to 93% and the phone status showed not charging, even though the battery icon on home screen next to clock shows the lightning symbol inside the battery like is charging.
I don't understand what is happening. Grrrrrr. This is using a wall a charger for a droid charge. Now of to trying it with the OEM charger and cable.

rfvreynoso said:
Got an update on this issue. I streamed another 45 mins to 1 hr of ESPN using watch ESPN app and the results are even more interesting. I was using the wall charger that came with the Droid charge and the USB cable that came with the I go green wall adapter that I have purchased at an airport a while back. Here is what happened, when I started streaming the battery was at 94% and I plugged in phone to charger and under settings/about/status it showed AC charging. After 45 mins to 1 hr of streaming the phone was extremely Hot towards the center of the back and below the cam lenses and led light. Also the battery had dropped to 93% and the phone status showed not charging, even though the battery icon on home screen next to clock shows the lightning symbol inside the battery like is charging.
I don't understand what is happening. Grrrrrr. This is using a wall a charger for a droid charge. Now of to trying it with the OEM charger and cable.
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The battery can stop charging if it gets too hot (safety measure).
Sent from my Galaxy Nexus using Tapatalk

Herman76 said:
The battery can stop charging if it gets too hot (safety measure).
Sent from my Galaxy Nexus using Tapatalk
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Click to collapse
Exactly, in the driver i think the overheat is set to 140F. Also when your charger showed as usb it only gets 509mA and when showing ac it gets the full 1 amp. So just pay attention next time and see if it drains when showing ac.
My car charger is a 1.3 amp and always shows as ac and never drains while charging.

Herman76 said:
The battery can stop charging if it gets too hot (safety measure).
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I though about that but then I was wondering, shouldn't the wall charger provide enough power to run everything in there while charging the battery or even without the battery in the phone. Like shouldn't the battery hold the charge that it already has when I started streaming as long as the charger is 1amp?
I would not care if when I stream the phone battery would just hold its charge at what it has at the moment even if it does not charge while streaming. Hopefully that is clear to understand.
To all the fellow galaxy nexus owners out there, maybe you all can test on your phones and see if you get same results as me. Download watch espn and stream the channel for 30 mins, notice what is your battery level before you start streaming, of course plug the phone to a car charger or wall charger and see if battery remains the same, drops charge, or gain charge at the end of 30 mins, or maybe an hour. I am not asking you to watch it for the 30 mins or 1 hour, just let it run and see what happen, if you can of course. only reason why I ask for watch espn is because it is the app that I have been using to stream nba games for the last few days.
Another thing since I am already here with this streaming issue, I have an original SlingBox, the cheapest of the cheapest when they first came out, just coax and that is it. I would like to know if I pay the $29.99 for the app from the market when i switch roms on my galaxy nexus would I lose the app? I have already unlocked and rooted my galaxy nexus and lets say I buy the app and I am running cm9 when I purchase it, if I change to gummy rom or back to a stock rom while still rooted would I have to re-buy the app ?
Thanks in advance for all the input.

Have u tried underclocking cpu with setcpu app?
Sent from my PG06100 using XDA App

King Jeriamas said:
Have u tried underclocking cpu with setcpu app?
Sent from my PG06100 using XDA App
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Click to collapse
No I haven't try that. I am currently testing out roms like a mad man trying to find the best for my liking. Question for ya, As far as I know that is kernel dependent right? Like the kernel has to support it, if so which kernels do support it and what would be good underclocking settings ?

I get similar results while using navigation and pandora at the same time, the phone uses more juice than the car charger can provide.

Ironically I plugged in the oem charger and oem cable from the galaxy nexus box and open it (didn't really wanyed to do that) and streamed 30 mins of espn on watch espn and battery was at 70% when I started after 30 mins streaming it had actually climb to 78%. Confused yet everyone? What gives?
Sent from my PC36100 using xda premium

Not all that odd. Using my Fascinate charger (0.7 amp) I get noticeably slower charge times than the OEM charger (1 amp). I don't use my phone much while I'm charging so I can't provide any feedback for that.
What is the Droid Charge charger rated at?

problems charging the note 2 in the car - any ideas?

here is my setup in the car and i can't get the note to charge - well, it does say its charging but at best it will maintain my charge level it never actually charges
dedicated charger into my fuse box
note hooked up with mhl to my pioneer appradio 2
gps running, mhl running, bluetooth running. i use a screen off app to totally black out the screen.
now, this setup with my gs3 worked perfectly it would charge the gs3 like crazy as fast as a wall charger it seemed. with the note it will never increase in charge but at best maintain or slowly use charge. the power it is getting cannot keep up with all the tasks its doing.
now, i know this phone is a beast...but can anyone think of anything for me to try or buy to get this charging no matter what? i figure it may take custom kernals or something like that to finally get it done.
that being said - if you are using an android phone you absolutely must check out the pioneer appradio 2 with the appradio liberator app. you hook the phone up via mhl and with the app have full touchscreen control and mirroring of your phone on the 7inch touchscrreen radio display its pretty awesome.

I know the wall charger is a 2A rated charger....which is built for tablets. Perhaps attempt to locate a travel charger rated as such. I'm no scientist, or electritian so I cannot attest this will work, but just thought I would throw it out there
Sent from my SPH-D710 using xda app-developers app

Jcossack88 said:
I know the wall charger is a 2A rated charger....which is built for tablets. Perhaps attempt to locate a travel charger rated as such. I'm no scientist, or electritian so I cannot attest this will work, but just thought I would throw it out there
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
my chargers i the car claim to be 2a but doesn't seem to make a difference. hell, the one charger would chage an ipad in the past

most samsung tablets need an adapter to "trick" fast charging mode on non-samsumg chargers. otherwise it'll just trickle charge. i've not tried any yet but seems i may have to since the gnote2 is gonna need the same juice as my gn101. kinda what i expected since they're pretty much the same specs.
here's a thread to make your own adapter:
http://forum.xda-developers.com/showthread.php?t=845844
page 9 has a few links buy your own. just put .com in place of .co.uk on the ebay links.
here one for $3. ships from china so it may take a few weeks.

the stock AC charger supplied with the note 2 is 2A. I also have a 2A car charger. I cannot get the note to charge at any rate higher than 1A. Yes, i do know the trick to get the phone to go into fast charge mode. I have a feeling that 1A is the most we are going to get. Yes, if you have a ton of stuff running all at once you are going to use more than 1A and end up with a dead battery after a while. It does suck. My previous phone (Epic) would not charge beyond .5A. It died while on my car charger ALL the time. Hopefully this one wont die quite as often.
JD

JudasD said:
the stock AC charger supplied with the note 2 is 2A. I also have a 2A car charger. I cannot get the note to charge at any rate higher than 1A. Yes, i do know the trick to get the phone to go into fast charge mode. I have a feeling that 1A is the most we are going to get. Yes, if you have a ton of stuff running all at once you are going to use more than 1A and end up with a dead battery after a while. It does suck. My previous phone (Epic) would not charge beyond .5A. It died while on my car charger ALL the time. Hopefully this one wont die quite as often.
JD
Click to expand...
Click to collapse
have you actually tried the trick or the item in the link posted above? if so no use in me ordering it

knives of ice said:
have you actually tried the trick or the item in the link posted above? if so no use in me ordering it
Click to expand...
Click to collapse
I've just ordered 3 of the $3 ones from deal extreme. it'll be a while before I can test it on a gn2. I'll try them on my gn10.1 as soon as they come in.

madsquabbles said:
I've just ordered 3 of the $3 ones from deal extreme. it'll be a while before I can test it on a gn2. I'll try them on my gn10.1 as soon as they come in.
Click to expand...
Click to collapse
I ordered one from a usa seller on eBay hopefully I'll have it next week

This seems like it'd be very easy to do yourself with an old mUSB cable.

ffolkes said:
This seems like it'd be very easy to do yourself with an old mUSB cable.
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Click to collapse
yeah maybe but the part is a couple dollars alot less time and frustration to buy

ffolkes said:
This seems like it'd be very easy to do yourself with an old mUSB cable.
Click to expand...
Click to collapse
yep, looks really easy. i just wont' be able to make it as pretty

knives of ice said:
have you actually tried the trick or the item in the link posted above? if so no use in me ordering it
Click to expand...
Click to collapse
Yes, the trick i use is to short the two data lines going to the phone NOT towards the charging source. If you do not do this the phone will be in USB mode which will only allow a charging rate of .38A. This seems to be an android/usb standard across almost all vendors. once i short the data lines that is when the phone will go into full charging mode. The highest i can get the phone to go is 1A and this is even with the supplied Samsung 2A charger. I have also tried an iPad charger and it still only produced 1A to the Note II.
The Note II also seems to vary the input current based on how much battery is left. If the Note is very low (i.e. 50%) it will go into 1A. If the battery is high (i.e.95%), the current will bounce around. I have seen it start at .5A, jump to .8A, then to 1A, then right back down to .5A and it will continue there until it reaches 100%.
Bottom line i have not seen anything above 1A
JD

at least one of the adapters on the other thread claims 2A, but i don't think i've seen anyone with those results.

this is a pretty ridiculous problem for samsung to do nothing about is it not? the notion that you can't even charge your note in the car is a bit ridiculous. i wonder if someone makes a kernal with fast charging enabled if we'll be able to get around this

knives of ice said:
this is a pretty ridiculous problem for samsung to do nothing about is it not? the notion that you can't even charge your note in the car is a bit ridiculous. i wonder if someone makes a kernal with fast charging enabled if we'll be able to get around this
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Click to collapse
you can charge, just ridiculous slow. i occasionally charge my galaxy note 10.1 on my computer's usb when i'm too lazy to whoop out the charger. i do it a work where i know i won't use it for 8 hours.

madsquabbles said:
you can charge, just ridiculous slow. iccasionally charge my galaxy note 10.1 on my computer's usb when i'm too lazy to whoop out the charger. i do it a work where i know i won't use it for 8 hours.
Click to expand...
Click to collapse
You can't charge if you are intensively using the phone though. it loses charge.

Is there a specific car charger yet for the Note 2? I imagine this issue will be resolved with that charger.
People with the HTC Flyer/Evo View had similar issues. Unless we use HTC proprietary car charger, you lose power while plugged in. Standard usb chargers, charge it very slowly.
Sent from my shooter using xda premium

I am using the PowerGen Dual USB 3.1A 15w High Output Car Charger since it claims to be a 3.1A charger. What I thought was a fast charge was in reality not. Using the Current Widget app (which shows you the mAh) it registers 9882 mA for one of the usb slots and 10005 mAh for the other using the Galaxy Note 1.
TS

twospirits said:
I am using the PowerGen Dual USB 3.1A 15w High Output Car Charger since it claims to be a 3.1A charger. What I thought was a fast charge was in reality not. Using the Current Widget app (which shows you the mAh) it registers 9882 mA for one of the usb slots and 10005 mAh for the other using the Galaxy Note 1.
TS
Click to expand...
Click to collapse
so does that charger actually charge your phone then ?

Yes, just like a regular 1mA wall charger, but not like the 2mA one that comes with the Note 2.
TS

Extremely slow charging with micro USB 2.0

This weekend I manged to leave my included Note III Micro USB B 3.0 charger at a friends. I didn't think it was a big deal because I knew I had plenty of micro USB 2.0 Cables I could use in the meantime as they are supposedly backwards compatible.
I was home watching football for most of the day yesterday. The phone charged all day yesterday but I don't remember it ever getting as high as 45%. I didn't get worried until last night when I looked closely and realized the percentage was declining as I used and charged it.
When I went to sleep at about 12:30am I was at 9%. My WiFi and 4Glte were both off and I wok up at 5:30 am to find my phone at 63% only after 5 hours. This is the same charger I used with my Samsung Galaxy S3 just over a week ago til I got this. Why isn't it charging. I'm afraid I'm harming my battery somehow. That's why I'm writing this at 5:45 am instead of sleeping. Any help would be appreciated. Thanks.
P.S. In the 10 minutes it's taken me to write out this thread my battery has declined to 62. (Still on charger)
Sent from my SM-N900T using xda app-developers app

ThattOneKiddMichael said:
This weekend I manged to leave my included Note III Micro USB B 3.0 charger at a friends. I didn't think it was a big deal because I knew I had plenty of micro USB 2.0 Cables I could use in the meantime as they are supposedly backwards compatible.
I was home watching football for most of the day yesterday. The phone charged all day yesterday but I don't remember it ever getting as high as 45%. I didn't get worried until last night when I looked closely and realized the percentage was declining as I used and charged it.
When I went to sleep at about 12:30am I was at 9%. My WiFi and 4Glte were both off and I wok up at 5:30 am to find my phone at 63% only after 5 hours. This is the same charger I used with my Samsung Galaxy S3 just over a week ago til I got this. Why isn't it charging. I'm afraid I'm harming my battery somehow. That's why I'm writing this at 5:45 am instead of sleeping. Any help would be appreciated. Thanks.
P.S. In the 10 minutes it's taken me to write out this thread my battery has declined to 62. (Still on charger)
Sent from my SM-N900T using xda app-developers app
Click to expand...
Click to collapse
I had a usb2.0 cable plugged in in my car and I went skiing and streamed music and did the same while plugged in on the way home. I don't know if the cable just slowed battery usage or not but it was plugged in for 2 hours on the way home and I still lost like 5% while plugged in. I bought a USB3.0 cable off Amazon and it works well in my car, not as fast as plugged in to the wall charger but much better than 2.0

ThattOneKiddMichael said:
This weekend I manged to leave my included Note III Micro USB B 3.0 charger at a friends. I didn't think it was a big deal because I knew I had plenty of micro USB 2.0 Cables I could use in the meantime as they are supposedly backwards compatible.
I was home watching football for most of the day yesterday. The phone charged all day yesterday but I don't remember it ever getting as high as 45%. I didn't get worried until last night when I looked closely and realized the percentage was declining as I used and charged it.
When I went to sleep at about 12:30am I was at 9%. My WiFi and 4Glte were both off and I wok up at 5:30 am to find my phone at 63% only after 5 hours. This is the same charger I used with my Samsung Galaxy S3 just over a week ago til I got this. Why isn't it charging. I'm afraid I'm harming my battery somehow. That's why I'm writing this at 5:45 am instead of sleeping. Any help would be appreciated. Thanks.
P.S. In the 10 minutes it's taken me to write out this thread my battery has declined to 62. (Still on charger)
Sent from my SM-N900T using xda app-developers app
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Click to collapse
I understand that 3.0 will be faster but this is horrendous. It's now 8 hours since I plugged it in and I'm at 74%. And it's plugged in to a wall adapter not a computer or car. Haven't even had this phone for two weeks. Samsung you're killing me here.
Sent from my SM-N900T using xda app-developers app

Not sure. My phone charges the same on both 2 and 3. I know data transfer is faster on 3. I don't think charging is.
Sent from my SM-N900T using Tapatalk

patrao_n said:
Not sure. My phone charges the same on both 2 and 3. I know data transfer is faster on 3. I don't think charging is.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
It's not, at least, not from a wall charger that follows the specs. USB3 will charge faster from a computer with the drivers set up properly, but the stock wall plug is 2A (max), all the time. If you get better charging from a USB3 cable, your USB2 cable is probably using really thin wires or just is wearing out.
Some generic chargers are all over the place. Some don't short the data lines so the phone doesn't know if it should be able to fast-charge. Some don't actually put out the current they are rated for.
IF you use the charger the phone came with, and a GOOD USB2/3 cable, it will charge properly. If its not, you have something wrong in your setup. I use the charger that came with the N3 (and the N2), and a Nook or a Monoprice.com USB2 cable. Nice fast charging. I have never used the USB3 cable as I prefer to be able to charge other devices from the same cable and I don't own any USB3 computers.
I also get good charge speed from an older HTC 1A charger. Not as fast, but faster than I expected to get. Note that's a charger that came with a G2 and G2x, not some ebay crap. That's not to say that generic ebay chargers can't be good chargers, just that many of them aren't. If in doubt, use all OEM stuff, at least for testing.
What's probably happening for most people having slow charging on older and/or generic charging setups is one of these...
1) The charger doesn't short the data pins so the phone thinks it's connected to a computer USB and limits charge current to 500mA.
2) The charger doesn't output what the writing on the side claims, and the phone detects this, so it limits itself to charging as best it can.
3) The USB cable uses small, cheap wires and creates too much voltage drop, causing the phone to limit its charge rate.
4) Connector wear is causing voltage drops due to a bad connection. Try a new cable. Not a different cable, a NEW cable.
5) Your Note3 is defective and needs to be replaced. This isn't real likely, but damage to the USB port could cause it.
The Note wants a lot more current than older devices. It also has a system to detect issues that older phones didn't have. I think the first I saw with it was the N2. The phone detects voltage fluctuations under load and adjusts its current draw to keep the voltage as steady as it can. This makes the device more picky about having a good charger and cable. That can be a pain, but it also prevents overloading the charger, which could be something expensive like a computer, which prevents damage. Note that this doesn't harm the battery, it just won't charge as fast as you might like. At 500mA, it's actually possible for the phone to use more than that, so your charge will go down while plugged in. That's not going to hurt anything, it's just how it is.
For the OP: Try a decent wall charger. If you don't have anything better, you'll have to turn the Note OFF while charging. That should at least get your battery charged overnight. If it's a long cable, try a shorter one, that can make a difference. Or try to find a thicker cable, but that's not always a guarantee the wires inside are any thicker.

Magnetic Dock with Quick Charger?

Hey everybody.
I just got my Z3 Compact yesterday and it came with sony's quick charger. That was nice of Sony... Now charging is so quick that it's awesome. <3
However, I plan to get a magnetic charging dock. Perhaps Sony's one or the one by Kosee (search for it on Amazon. I can't post links). I wish to know if there would be any problems if I used the quick charger with the dock? Anybody here with the Kosee dock and using the quick charger with it? I don't want to buy the dock only to get it overheat or something and then become a paperweight in the future. That would be very sad.
Btw, I'm from Canada. Bought the phone right after launch day. My very first, proper, flagship Android phone (I used a Blackberry Curve before). It feels awesome and scary at the same time.

Alayer said:
Hey everybody.
I just got my Z3 Compact yesterday and it came with sony's quick charger. That was nice of Sony... Now charging is so quick that it's awesome. <3
However, I plan to get a magnetic charging dock. Perhaps Sony's one or the one by Kosee (search for it on Amazon. I can't post links). I wish to know if there would be any problems if I used the quick charger with the dock? Anybody here with the Kosee dock and using the quick charger with it? I don't want to buy the dock only to get it overheat or something and then become a paperweight in the future. That would be very sad.
Btw, I'm from Canada. Bought the phone right after launch day. My very first, proper, flagship Android phone (I used a Blackberry Curve before). It feels awesome and scary at the same time.
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Click to collapse
I don't see why there would using it with the dock. Essentially the dock is the same as a normal charger, it only allows your phone to sit in a certain position.

Sony Quick charger? do you have a pic & model number, I wasn't aware that Sony have yet bought out a quick charger.

techguyone said:
Sony Quick charger? do you have a pic & model number, I wasn't aware that Sony have yet bought out a quick charger.
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http://www.sonymobile.com/gb/products/accessories/quick-charger-ep881/

hmm its the same as the ep880, one is seperate sale, one is included in the retail box. I was hoping it was something along the lines of the new moto fast charger.

techguyone said:
hmm its the same as the ep880, one is seperate sale, one is included in the retail box. I was hoping it was something along the lines of the new moto fast charger.
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What's the Moto fast charger like?
Btw, when the battery level gets higher, the charging slows down. That's normal, right? I never owned a fast charging device, so I wouldn't know.

Is there any long lasting issues using a Quick Charger as opposed to the normal charger?
also 0-100% how log does it take with the quick charger?

I checked Samsung charger 5V/2A. From 0% to 10% - 10 min, 50% after 1 hour, full after 2,5 hours. I'm going to buy HTC fast charger witch is compatible with Qualcomm's fast charging 2.0 and will try it.

[email protected] said:
I checked Samsung charger 5V/2A. From 0% to 10% - 10 min, 50% after 1 hour, full after 2,5 hours. I'm going to buy HTC fast charger witch is compatible with Qualcomm's fast charging 2.0 and will try it.
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Click to collapse
Interesting, the standard Sony charger that comes with the phone only takes around 3 hrs to full charge, saving 30 mins isn't that great, wonder if it can be improved on.

Sony's recommendation is to use the magnetic dock with a wall charger aka EP880/EP881 "quick charger." I regularly charge using a magnetic cable plugged into either a wall charger or USB 3.0 port, and I have not had any issues.

Just a heads up: I've noticed that the lower your battery level is, the faster it charges. As the level gets higher, the charge rate slows down. I've seen my phone go up 1% in 10 seconds (from 4% to 5%). However, when my phone was at 98% it took well over a minute to get to 99%. Maybe the fast charger isn't meant to make your battery fly from 0 to 100% as fast as possible, but to provide a fast (but short) boost when you're close to running out.
I wish I had done proper scientific tests, with apps and timers and stuff. But, I was lazy and chatting on my phone at that time. I can assure you that my above statements are true and not made up to impress people.
Another thing I've learnt: Even the Motorola turbo charger does the same thing. It's even mentioned in their website that the battery level has to be substantially depleted for fast charging. The rate will slow down as battery level goes up.

Yes that's correct, presumably a battery protecting measure, reasoning behind it will be that you may be in a hurry and want to get as much as possible in a short time on a very empty battery, hence the very fast charging at low battery levels.

Sony magnetic
Dsteppa said:
I don't see why there would using it with the dock. Essentially the dock is the same as a normal charger, it only allows your phone to sit in a certain position.
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The dock dont use the microUSB port

You only get the benefit of quick charge 2.0 when plugged in to the usb port on the phone. It has to negotiate the connection through data. Using a quick charger in conjunction with the dock will be exactly as fast as a 2 amp non-qc charger.

Wrong. Dk48 and presumably some magnetic cables ARE qc2.0 compatible. Tested on dk48 - negotiated 9v/1A

Quick charge 2.0 is 9v/1a?
So if I buy the original dock with cable i should have fast charging?
Can you please share charging speeds?
I'm struggling to decide if to buy regular wall charger or buy magnetic. Charging cable
Sent from my D5803 using Tapatalk

DeaDruiD said:
Wrong. Dk48 and presumably some magnetic cables ARE qc2.0 compatible. Tested on dk48 - negotiated 9v/1A
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We would gladly enjoy some demo.
There is no way it can negotiate.

I'd like to know too, I've ordered the UCH10 & I use the DK48 dock, hopefully it will

Sorry Think i posted in the wrong thread

nonyhaha said:
We would gladly enjoy some demo.
There is no way it can negotiate.
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Seems like they say it should:
https://talk.sonymobile.com/t5/Xper...K48-compatible-with-the-Sony-Fast/td-p/967700