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Is Note charger same as Galaxy S2 charger?

Hi,
Getting an EU version of the Note, so I need to buy a Uk charger, is the charger for the Note and Galaxy S2 compatible? Thinking buying a 3rd party Galaxy S2 charger on ebay.
Many thanks

I suspect any 5v microusb charger delivering over 0.5A will be fine.
Expansys sent me a standard HTC one (5v 1A) with my german note and I am in the UK.

Thanks, I have a couple of generic USB wall chargers at home, so might as will use them with the Note.

I can't answer the question directly, but that big screen, fast processor and larger battery are going to take a bit more juice than your average phone, including the S2. When it comes to mains chargers that may not be a big deal, unless you leave the phone active while charging, but might become an important consideration if trying to use the phone for satnav in the car, for example.
At the moment I'm using an Orange San Francisco. That has a 3.5" OLED screen and a 600MHz single core processor, so hardly an energy guzzler. The supplied charger is rated at .7A. In the car, when using satnav, my generic USB car charger cannot quite keep pace with the energy demands of that little phone and the battery level actually drops slowly while connected to power in the car. I'm definitely going to be looking for something more robust for the Note.

Note charger is 1 amp, Nexus S .7 amp, Note charges fine off the .7 amp charger.

I assume a standard Samsung GS charger would do, the output on it is 0.7A?

tdodd said:
When it comes to mains chargers that may not be a big deal, unless you leave the phone active while charging, but might become an important consideration if trying to use the phone for satnav in the car, for example.
Click to expand...
Click to collapse
Surprise, my car charger was not good enough for the S2 while using nav software, but the Note charges nicely.
Sent from my GT-N7000 using xda premium

So could I use my Samsung Galaxy S charger with my note (that I will order soon) or shall I purchase this
http://www.amazon.co.uk/Adapter-Cha...KQU2/ref=sr_1_1?ie=UTF8&qid=1320872764&sr=8-1
... the above is 1000mA... is that enough?
Or should I just purchase a Euro/Worldwide adapter to UK plug?
http://www.amazon.co.uk/Travel-Adap.../dp/B000P0FIUM/ref=dp_cp_ob_computers_title_0

Gede said:
Surprise, my car charger was not good enough for the S2 while using nav software, but the Note charges nicely.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
You not only need a charger that can deliver more oomph, but also a lead or charger, possibly modified, that will allow the phone to draw that current. I have 1A USB chargers for the car but a regular data/charging lead only permits the phone to charge at the standard USB maximum current of 0.5A. I had to open up one of my chargers and solder the two centre pins together. Shorting those two pins signals to the phone that it can draw the full "mains" current rather than the 0.5A USB maximum.
I haven't yet charged the Note in the car, but on my previous phone the charging status would show "Charging (USB)" prior to the mod and once modded it would show "charging (AC)", which is what you need to keep the phone charged and charging while in use rather than slowly depleting.

jUsT2eXy said:
So could I use my Samsung Galaxy S charger with my note (that I will order soon) or shall I purchase this
http://www.amazon.co.uk/Adapter-Cha...KQU2/ref=sr_1_1?ie=UTF8&qid=1320872764&sr=8-1
... the above is 1000mA... is that enough?
Click to expand...
Click to collapse
Same inquiry as me. Thanks for those links by the way.

I have used the 2 amp charger of my galaxy tab 10.1.
I have the impression this charges my note noticably fatster.

Super Chimp said:
Same inquiry as me. Thanks for those links by the way.
Click to expand...
Click to collapse
1 amp is good..same as the GS2, i believe... so , yes- the GS2 charger should work on the Note

Kibosh3 said:
1 amp is good..same as the GS2, i believe... so , yes- the GS2 charger should work on the Note
Click to expand...
Click to collapse
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.

adapter
Would it work to get an adapter from the European plug that comes with the note to US outlet?

Super Chimp said:
Same inquiry as me. Thanks for those links by the way.
Click to expand...
Click to collapse
Thing is would the USB cable that comes with the note (designed for computers) be suitable in carrying 1000mAh?
I heard that USB cables that come with phones are 0.5mAh so it won't make use of the 1000mAh...
Can anyone confirm this? If so then it's better to buy an out and out 1000mAh plus wall charger or a worldwide travel adapter.
---------- Post added at 12:53 AM ---------- Previous post was at 12:51 AM ----------
dennishhh said:
Would it work to get an adapter from the European plug that comes with the note to US outlet?
Click to expand...
Click to collapse
That's also what I want to know.
There is no reason why it wouldn't work. It's just like going on holiday... US plugs to Euro/UK etc
So that's the route I will end up taking. But I may purchase an out and out 1000mAh wall plug anyway... even a 2000mAh...

jUsT2eXy said:
Thing is would the USB cable that comes with the note (designed for computers) be suitable in carrying 1000mAh?
I heard that USB cables that come with phones are 0.5mAh so it won't make use of the 1000mAh...
Can anyone confirm this? If so then it's better to buy an out and out 1000mAh plus wall charger or a worldwide travel adapter.
Click to expand...
Click to collapse
I am 20000000% sure it can such a low current.
( Just think , would samsung bundle a cable that does not support the charger )

drgopoos said:
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.
Click to expand...
Click to collapse
strange... my SGS2 came with a 1 amp ... i'm not complaining

drgopoos said:
I can confirm that SGS2 charger works on note. However charging is slow ( its 0.7 A )
However the note charger ( 1.0 A) charges faster
dont have a 2 A charger to test but I would say that it would be the same speed as 1 A charger.
If we want faster charging, we will need the kernel to modified.
The downside would be shorter battery life.
Click to expand...
Click to collapse
Sounds like it might be worth getting an EU to UK plug adaptor then.

dennishhh said:
Would it work to get an adapter from the European plug that comes with the note to US outlet?
Click to expand...
Click to collapse
yes it will work fine, because the charger accepts 100-220vac 50/60Hz

The Samsung power adaptor that comes with the Note is a Universal one (110 Volts - 240 Volts) and is rated at 5 Volts 1 Amp output.
If you need an alternative for some reason (or a spare).........
Personally, I am using a generic iPad mains adaptor with dual USB sockets. The device was made in China and has a total current output of up to 2 Amps. It is a also a worldwide model. I think it charges faster than the Samsung charger.
It also charges the Note when using the MHL>HDMI output. I have read some postings that the Note very slowly loses charge when the MHL>HDMI adaptor (which has to be externally powered) is in use. With this 2A adaptor, it continues to charge.
You could also try the Genuine iPad adaptor that also works worldwide and delivers a genuine 1 Amp rather than some of the cheapie models that struggle to supply that current.

Car chargers, please recommend !

I'm going on a looooong trip next week, and will be away from home for about two weeks... Most of the driving will be of about 6 hours between hotel stops or whatever, and unless I'll be sleepy, I'll surely abuse my Note, haha. Will reach a hotel where I'll stay for 10 days, but the rest of the time will be wasted on the road...
So... a car charger is needed .
What would you guys recommend? In terms of brand, first... because I know some manufacturers write 1A on them, when they give not even half...
I've seen MOMAX chargers that give 1A @ 5V x 2 (had two USB outs) at about 15 bucks, for example.
I've also seen an orange-branded charger at 5 EUR (but it was almost double in lenght than the MOMAX one), with an included microUSB cable, that outputs 2A or 2.1A @ 5V. Would THAT one be safe to use? Or any charger that outputs >1.5A, for example...?
Also, will the phone charge faster if using a charger that gives 2A? I know it won't draw 1900mA out of it, lol, but still...

Formhault said:
What would you guys recommend? In terms of brand, first... because I know some manufacturers write 1A on them, when they give not even half...
Click to expand...
Click to collapse
Formhault, last week I have purchased for my Note a Samsung car holder with 1A charger from this shop in Bucharest: http://www.alliselectronics.ro/inca...-ecsk1e1-pentru-galaxy-note-incarcatoare-auto
Unfortunately I did not test it yet on the car on a long drive and with the Note running empty; also due to the small form of the microusb plug I cannot perform any electric measurement.
I can confirm that measuring other car chargers of 0.5A and 0.7A I have found out that the o/p voltage is dropping a lot during the charging process, thus explaining the resulting low current and long charging time.
At he same shop you also can find a stand alone Samsung car charger, also of 1A at http://www.alliselectronics.ro/incarcatoare/auto/incarcator-auto-samsung-ecau16c-accesorii-tablete
Formhault said:
I've also seen an orange-branded charger at 5 EUR (but it was almost double in lenght than the MOMAX one), with an included microUSB cable, that outputs 2A or 2.1A @ 5V. Would THAT one be safe to use? Or any charger that outputs >1.5A, for example...?
Also, will the phone charge faster if using a charger that gives 2A? I know it won't draw 1900mA out of it, lol, but still...
Click to expand...
Click to collapse
The output current capability of a charger has nothing to do with how much curent the phone will draw while charging (of course the maximum rating of the charger must not be exceeded), on the condition that the 5V output voltage is not going too high at the lowest current consumption (when the battery is almost full).
Good luck in finding the suitable charger for your needs!

Mobile Inverter is the solution.
Formhault said:
I'm going on a looooong trip next week, and will be away from home for about two weeks... Most of the driving will be of about 6 hours between hotel stops or whatever, and unless I'll be sleepy, I'll surely abuse my Note, haha. Will reach a hotel where I'll stay for 10 days, but the rest of the time will be wasted on the road...
So... a car charger is needed .
Click to expand...
Click to collapse
Try a mobile inverter and use your prefered wall charger. in 400W range you can charger all your devices. Try here:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias=lawngarden&field-keywords=Mobile+Inverter
I use a chinese one here, one with two outlets and 2 usbs 1A each. It's big but it's the perfect solution. Otherwise i have a powerjolt from griffin ,5A for the phone during car navigation. http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q It's really small and stealth.
Cya.
Tech

axelTP2 said:
Formhault, last week I have purchased for my Note a Samsung car holder with 1A charger from this shop in Bucharest: http://www.alliselectronics.ro/inca...-ecsk1e1-pentru-galaxy-note-incarcatoare-auto
Unfortunately I did not test it yet on the car on a long drive and with the Note running empty; also due to the small form of the microusb plug I cannot perform any electric measurement.
I can confirm that measuring other car chargers of 0.5A and 0.7A I have found out that the o/p voltage is dropping a lot during the charging process, thus explaining the resulting low current and long charging time.
At he same shop you also can find a stand alone Samsung car charger, also of 1A at http://www.alliselectronics.ro/incarcatoare/auto/incarcator-auto-samsung-ecau16c-accesorii-tablete
Click to expand...
Click to collapse
Erm... the first one looks expensive. I don't need a holder. No-go.
The second one is expensive, too, but I think I'd rather pay that money for THAT instead of the Momax one. GOSH, they don't state the lenght of the cable. Any idea how long that is?
axelTP2 said:
The output current capability of a charger has nothing to do with how much curent the phone will draw while charging (of course the maximum rating of the charger must not be exceeded), on the condition that the 5V output voltage is not going too high at the lowest current consumption (when the battery is almost full).
Good luck in finding the suitable charger for your needs!
Click to expand...
Click to collapse
Yeah... I kind of noticed that. The Note draws even 1200mA at times, and I tried with the original charger and a HTC wall brick charger (both giving 1A @ 5V). So yeah... guess the phone can draw more than the charger can provide, if that makes sense, lol.
So you're saying that even a 700mA @ 5V charger can give 1A to the phone? Or I got it all wrong?

TekNiTe said:
Try a mobile inverter and use your prefered wall charger. in 400W range you can charger all your devices. Try here:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias=lawngarden&field-keywords=Mobile+Inverter
Click to expand...
Click to collapse
WHAT?! LOL!
That makes me think... why not use a car battery rectifier and give it 50 amps to eat . Sorry, but that's the first thing that popped in my head when I heard "inverter".
Still not sure what that thing is, so let's proceed to the second part.
TekNiTe said:
I use a chinese one here, one with two outlets and 2 usbs 1A each. It's big but it's the perfect solution. Otherwise i have a powerjolt from griffin ,5A for the phone during car navigation. http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q It's really small and stealth.
Click to expand...
Click to collapse
Heard Griffin are good!
You mean that Griffin Powerjolt (which is stated to give 1A) outputs 5 AMPS TO YOUR PHONE?!?!?!
Although that thing is cheap on Amazon... it's about 20 EUR here, in Romania . At least that's the smallest price I can find for it... so, not sure I'll go for that one .

Formhault said:
The Note draws even 1200mA at times, and I tried with the original charger and a HTC wall brick charger (both giving 1A @ 5V).
Click to expand...
Click to collapse
How did you measure that 1.2A charging current, please?
Formhault said:
So you're saying that even a 700mA @ 5V charger can give 1A to the phone? Or I got it all wrong?
Click to expand...
Click to collapse
No, I did not say that, on the contrary.
Here are some measured values:
0.7A car charger:
Open circuit voltage (disconnected phone):5.34V
Voltage under charging: 4.52V
Charging current: 0.6A measured on a resistor load
0.5A car charger:
Open circuit voltage (disconnected phone):5.31V
Voltage under charging: 3.16V
Charging current: 0.42A measured on a resistor load
Both chargers are doing the job, but very, very slow (2 to 3 hours from empty to full battery charge) and IF not many services are running on the phone.
Hope that helps......

axelTP2 said:
How did you measure that 1.2A charging current, please?
Click to expand...
Click to collapse
Battery Monitor Widget - set the logging to every 60 seconds.
I attached the .txt logs to this post. Each log was done during charging, with Wi-Fi, Data and GPS off. Alarms were set to go off sometime in the morning (7 AM or 8, whatever), it is visible in the logs.
Even 2 and 1.6 amps were drawn at some point .
I used two chargers, because I wanted to see whether the HTC one can charge faster... if it can give more than 1A more often. It seems not, so I won't spend 10 bucks on a HTC one; will stick to the provided Samsung charger.
axelTP2 said:
No, I did not say that, on the contrary.
Here are some measured values:
0.7A car charger:
Open circuit voltage (disconnected phone):5.34V
Voltage under charging: 4.52V
Charging current: 0.6A measured on a resistor load
0.5A car charger:
Open circuit voltage (disconnected phone):5.31V
Voltage under charging: 3.16V
Charging current: 0.42A measured on a resistor load
Both chargers are doing the job, but very, very slow (2 to 3 hours from empty to full battery charge) and IF not many services are running on the phone.
Hope that helps......
Click to expand...
Click to collapse
It is said that charging at lower currents/voltages is healthier for the battery. But no thank you... I'll buy a car charger that gives 1A, lol. Still haven't decided which one I'll go for, but anyway...
Thank you

pls keep ur n10 charger in safe place.

Last nite, I played dead trigger until battery warning indicated 4%.
But I still keep playing and suddenly the screen went black.
I think the battery is totally dried out at that time. So I used the following
charger but failed to charge even after 10min. Here's the charger:
1. 3rd party 5V 3A charger,liteon brand.
2. old nokia 0.5A charger.
3. original samsung note2 charger.
all those 3 charger works normall on my n10 before last nite.
and suddenly i think maybe i can try out the original charger of n10.
And it works!
So i wonder if samsung or google put special charger on the adapter?
Before we know anything furthur.pls put ur n10 charger in safe place.

I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.

xxKamikazexx said:
I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.
Click to expand...
Click to collapse
I've confirm the voltage of my n10 adapter. Which printed "5V 2A".

It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.

wptski said:
It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.
Click to expand...
Click to collapse
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.

matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
Click to expand...
Click to collapse
Yeah, that is very strange indeed. It does draw in the 1800mA range from the battery during boot up. Are you using the same micro-USB cord all the time? It was reported that there are big differences in charging rate with different brands of cords.

This was covered in another thread recently.
Basicially the Samsung chargers have 2 pins shorted together to get full charging power of around 1.5A with the n10. Using other chargers will get you around 500ma output.
My guess is if you left your tablet on the "other" chargers overnight it would come on just fine. They simply don't output enough juice to power the tablet when the battery is that low.

matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
Click to expand...
Click to collapse
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).

swany6mm said:
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).
Click to expand...
Click to collapse
My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.

wptski said:
My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.
Click to expand...
Click to collapse
Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties

Not sure if it's been mentioned, but depending on the usage of the tablet, you might not be able to charge it quicker than the power usage. For me, if I'm playing a demanding game at 1.7Ghz and max brightness, neither USB or Pogo can charge the tablet, and battery still drops (slower, but still drops).

swany6mm said:
Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties
Click to expand...
Click to collapse
Never seen anything burn up because of low amperage., power or watts generate heat and power(watts)=voltage x current.
Did you ever see a PS(charger is inside the N10) with a USB port that supplies anything but 5V? I haven't.

Current (amps) does the charging.
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..

ongre12 said:
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..
Click to expand...
Click to collapse
You don't need more current to charge a bigger battery, it's all about how long it will take to charge to full.
Some have stated that they've seen a 3A battery drain with certain games. The 9Ah battery would last approx. 3 hours which exceeds the max rate of the charging circuit and the PS. Even on a fully charged battery at that rate doesn't last that long.

AFAIK for any tablet to be able to draw 2A from any 5V charger (that can supply the needed amperage) the data pins (middle two pins from the use cable) have to be at 2.5V. Otherwise even if the charger is with correct specifications 5V/2A the tablet might not charge at all, or charge at a lower rate.
Sent from my Nexus 10 using Tapatalk HD

I forget the actual brand/model of the actual charging chip but if you poke around in the N10 files you can find it but it's specs are list as 2.5A max but N10's code limits it to 2.1A. This isn't the PS wall wart commonly called the "charger".

The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A

MartiniGM said:
The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A
Click to expand...
Click to collapse
Sure the charging rate is way under what it should be but as they use larger and larger capacity cells the only solution is a removable cell to charge by other means.

[Q] How much can the phone get charged maximum? can it handle 2A?

Hi,
I've got my phone with samsung's charger of 1A (bought it from an open store locally - it was the cheapest), so I ordered a Sony Ericsson charger of 1.5A which charges up much faster..
My question is, could it goes even faster?
I've seen some Galaxy Note 2 and S 4 charger of 2A like these:
http://www.ebay.com/itm/2A-USB-Wall...S_Cell_Phone_PDA_Chargers&hash=item5658d7a0bd
http://www.ebay.com/itm/OEM-2A-USB-...l_Phone_PDA_Chargers&var=&hash=item51aabf953a
Could our phone handle it and charge it with the whole 2A power? could it ruin the battery with that high Ampere?
I'm asking this because I've ordered a docking station like this:
http://www.ebay.com/itm/261247762140?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Which says 1.6A, so I was thinking perhaps theres stronger chargers out there for it..
Thanks!

im not sure about this but i believe the charger that comes with the phone is a 2 amp charger

It can handle 2A through USB port.
Via the charging dock, it can take 1.8A. Is that dock you are linking to an original part?
I have two DK26 docks and both say 1.8A, not 1.6A. Although if you connect a 2A charger to the dock, it'll be fine, it just won't be using the whole 2A input.

skinsfanbdh said:
im not sure about this but i believe the charger that comes with the phone is a 2 amp charger
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I've never seen a Sony's charger with 2Amp, do you mind to picture the detailed information in the back of your charger please?
DrKrFfXx said:
It can handle 2A through USB port.
Via the charging dock, it can take 1.8A. Is that dock you are linking to an original part?
I have two DK26 docks and both say 1.8A, not 1.6A,
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The Dock I've linked is a chinese copy, not the original, the one says 1.6A on description on Ebay, Does your original DK26 dock comes with charger too? What input and output is it says on each one? (picture could help much)
Also, how do you know it can handle 2A through USB? is that for sure?
Thanks for both!

The docks come barebone. No chargers included.
The charger included on the box of the phone is rated at 1.5A.
I have a Nexus 7 2A charger and an old Nokia 1.2A charger aside from the included 1.5A charger. All work fine either via USB or via the dock.
I can't notice any mayor difference on charging times, though. 1.2A charges almost as if not as fast as the 2A one. Iphone's 1A chargers do seem to take like 4 hours to charge the phone compared to the standard 2.5h I get from other higher rated wall chargers.
There are no 2A Sony chargers as of now.

DrKrFfXx said:
The docks come barebone. No chargers included.
The charger included on the box of the phone is rated at 1.5A.
I have a Nexus 7 2A charger and an old Nokia 1.2A charger aside from the included 1.5A charger. All work fine either via USB or via the dock.
I can't notice any mayor difference on charging times, though. 1.2A charges almost as if not as fast as the 2A one. Iphone's 1A chargers do seem to take like 4 hours to charge the phone compared to the standard 2.5h I get from other higher rated wall chargers.
There are no 2A Sony chargers as of now.
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I see, I think I've cleared my doubts and I shell buy this 2A samsungs charger..
Thanks!

mcjordan92 said:
I see, I think I've cleared my doubts and I shell buy this 2A samsungs charger..
Thanks!
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I'm using a 2A as my car charger works perfect.
Sent from my C6603 using Tapatalk 2

It should handel 2.A but I won't remand it. I don't think it's good for battery. But one thing is pretty sure. The phone will heat more up as the charging circuit have to dissipate more excess power. Can not affirm it as I don't exactly know it's made but I'm just saying...
"I know that my English isn't perfect, but I still hope it's comprehensible." Send over the cool Xperia Z

The downside would be possibly shortening the usable life of your battery, because the higher amp charging will likely heat the battery to a higher temp.
There's no free lunch.
To me, waiting a bit longer for charging is worth it to ensure the longest charge cycle life, particularly since the battery is sealed into the device. If it was a cheap and easy replaceable battery, maybe.

Amps don't matter unless it is lower than the specification
Think about your car battery having 700amps but your car stereo is fused for 20amps. Your car stereo gets its power from the battery directly. There is no power regulation. Your device will take only what it needs. It won't effect the life of your battery. Think about the charger you plugged into the wall socket. A wall socket can generate enough current to melt metal. Lower power draw is cooler but really just make sure the voltage rating matches and the amp rating isn't too low. USB should be 5 volts anyways. The big issue with amperage, can the charger handle the draw? Example would be a 3000watt car amp drawing power from a 18 gauge speaker wire. It might work but the wire will heat up since it isn't designed to carry that much current.
In short for USB the charger amperage can be higher than the device needs but probably no less than 1/2 the rated amps for the device.

As above, you could plug in a 200A charger and the phone will still only draw the same current as from a 2A charger.
The amount of current drawn by the device is firmware controlled to protect the battery from heat damage.
The stock charger is 1.5A so the phone must draw no more than that.

It's all about cables too. I have a 2 amp TomTom charger hooked up to a 3 metre long USB cable but it charges slower than the standard 'in the box' charger Sony supply at 1.5 amp.
More cable and wrong core rating = more energy lost or wasted. I actually had to ask a sparky about this one, but it's true. Cable length, rating and core make all the difference.
For instance.
If you hooked up a 3 amp charger (I had one for an old phone) to a cable that can only handle 1 amp then you will only get 1 amp into the device, probably melt your cable too over time.
Honestly, the best bet is to use as near as dammit to the original rating on the included in the box charger. Electricity is a funny thing, it can screw your phone up in ways only time and noting the battery life will show.
Sent from my C6603 using xda app-developers app

Aukey Quick Charge 2.0

Hi! I bought a wall charger from Aukey that allow to charge up to 3 devices at the same time, what is great since I'll be able to charge the phone and the tablet at the same time! According to the manufacturer the charger is able to adapt the output to the needs of the devices! So my question is, can I use this charger to charge the GWR without damage the watch, since the output of the original charger is only 0.85A!

I think it should be fine. I have used my charger a couple of times without issue for my GWR and now my Huawei
Sent from my Nexus 6 using Tapatalk

I've been using an Aukey quick charger for a month now and no problems whatsoever. Normal charging times obviously (blisteringly fast on S6 however)

zemblance said:
I've been using an Aukey quick charger for a month now and no problems whatsoever. Normal charging times obviously (blisteringly fast on S6 however)
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So I don't need to hurry about the output current, or in other words, get the watch too much warm and reducing the battery life?

Obiwanhug said:
So I don't need to hurry about the output current, or in other words, get the watch too much warm and reducing the battery life?
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It is completely fine. The charging circuits of these devices (watches, phones, tablets etc) takes only what it is allowed by the limitations set to the charging IC circuit when supplied with 5v power over USB. I have an USB amp meter and the GWR barely uses half of the original chargers 0.85a capability. I've used my OnePlus One charger (a high quality 2A charger) to charge my watch as well occasionally, which also charges my Nexus 7 2013 regularly and that never takes more than 1A~ from this as well.

I've been using a Aukey Charger for a couple of months and no problem so far. The current regulation is supposed to be made by the device, not by the charger anyway ...
For those who wonder, I also checked if our G Watch R has QC 2.0, but it doesn't. It still charges at 5V on a QC 2.0 slot.