Hi,
I've read some threads here about charging the S3, but not all is clear to me. I would appreciate some explanation:
1) I've read that the stock chargers output 1A. However, on the charger I got with my S3 it's written "output: 5V 0.7A". So do you think I somehow got a wrong charger?
2) I want to buy a car charger for the S3. There are many generic car chargers in ebay, some of then output 2A current. What is the maximum current allowed for the S3? I couldn't find this number in my S3 manual or on the phone itself. Will a charger of 2A cause harm to my phone? or to the battery? or to both?
Thanks in advance!
bump... does anyone know?
My charger output states .05v=1.0a.
As for what aftermarket charger to buy, I would stay away from chargers with more output than the official for 'peace of mind that my charger's specifications are the same as the official charger that came with the phone' reasons.
Cheers
Generally wall chargers output 1000mA (1A) and USB ports 500mA (0.5A)
You do not want to purchase anything that goes above 1000mA
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I attach a picture of the adapter I got with my S3.
It says 0.7A on it, while it appears that other have one with 1A.
Did they con me with this adapter?
And regarding the maximum current allowed: do you think an adapter of 1.2A might harm the S3?
Do not know where your S3 come from but this charger is not made For S3 but for S2!
I just checked the model number:
S3 charger: ETAOU81EBE
S2 charger: ETAOU10EBE (like yours)
And there is no cable on the S3 charger, it use the USB cable
Thank you for this!
I don't get it. The charger was inside the S3 box and looked original. Damn!
I think the store I bought from import their S3 from Germany, since it came with Vodafone German stock ROM. Is it possible that this is the charger they sell on German vodafon? Or perhaps the store switched it for some reason?
Mine also come from my carrier: french vodafone
Was your S3 box sealed?
Those words, "teg listrik" and "frekuensi" is written in Indonesian
Sent from my GT-P1000 using xda app-developers app
Hi,
Background - I am an electronic engineer and have designed power supplies.
The Amp rating on a power supply is it's maximum capability to deliver power. The Voltage is the 'force' that it can push electrons through the device, this is the important one to have correct. So a 5V 300A Power supply will not charge your S3 any quicker than a 5V 1A power supply.
Get yourself a 1A car charger and you'll be fine. Depending on how the data pins on that charger are configured it'll be recognised as either a fast or slow charger but it will be fine in any case.
So, according to what you say, there should be not problem to use a 5V 2A charger on the S3?
The charger cannot accidentally push too much current to the device?
No. The phone limits the Amp the battery can get.
It simply won't go above 0.5 or 1Amp depending on what resistor is coded between the data pins (the 2 middle pins on the normal USB-plug)
(Note that this does not extend to all devices. E.g. cheap chinese toys and their batteries may not have any current limter, connecting them to "too powerful" chargers will result in damages or potential blow-up of the battery. The same applies to batteries without any electronic such as car batteries which can overheat and "cook")
I bought S3 in Germany 1.0A, there is a date on the charger:18.05.2012
Matching charger to phone
burmo said:
Hi,
Background - I am an electronic engineer and have designed power supplies.
The Amp rating on a power supply is it's maximum capability to deliver power. The Voltage is the 'force' that it can push electrons through the device, this is the important one to have correct. So a 5V 300A Power supply will not charge your S3 any quicker than a 5V 1A power supply.
Get yourself a 1A car charger and you'll be fine. Depending on how the data pins on that charger are configured it'll be recognised as either a fast or slow charger but it will be fine in any case.
Click to expand...
Click to collapse
Hi burmo,
An interesting concept. I have no clue in these things but what you say is not clear to me "all the way".
Charging my i93100 phone with 5.0V 3.1A will do no harm because it won't "push" more than 1A anyway?
And who is "responsible" for controlling this "push" the charger/battery/phone?
Does it work the same for Car chargers?
Thanks a lot,
Izik
multimeter check on .7amp charger
Animor said:
I attach a picture of the adapter I got with my S3.
It says 0.7A on it, while it appears that other have one with 1A.
Did they con me with this adapter?
And regarding the maximum current allowed: do you think an adapter of 1.2A might harm the S3?
Click to expand...
Click to collapse
so i have been wondering about this as well because i am currently building a custom charger for my s3 that charges the battery without having to plug into the charging port. i have redirected wires from the wireless charging port to metal tabs i have place on the back of my phone. it is a "drop in charger".
Anyway i have tested the charger that came with my phone. I also have the samsung stock charger that say the output is .7amp but after testing it with mutimeter, i have found that the output is actually 1.2 amps. As for max charging amps, I am not sure. I have tested several chargers. The new S4 charger puts out 2.34amps and i have not found any problem charging my s3 with it.
TrollTollKarl said:
so i have been wondering about this as well because i am currently building a custom charger for my s3 that charges the battery without having to plug into the charging port. i have redirected wires from the wireless charging port to metal tabs i have place on the back of my phone. it is a "drop in charger".
Anyway i have tested the charger that came with my phone. I also have the samsung stock charger that say the output is .7amp but after testing it with mutimeter, i have found that the output is actually 1.2 amps. As for max charging amps, I am not sure. I have tested several chargers. The new S4 charger puts out 2.34amps and i have not found any problem charging my s3 with it.
Click to expand...
Click to collapse
As far as I know the phone limits it so as you've found yes you will be fine
My original S3 charger is 5v 1.0amp
My original S3 charger is 5v 1.0amp. It was bought in Thailand with the phone.
I agree with burmo an advanced phone will have a current limiter as part of its circuit, however I prefer not to rely on it and not to exceed the manufacturer volt/amp recommendation.
The phone controls the current. In custom kernels (Boeffla and so on) you can change the target current. The phone has a protection built in, if the voltage is unstable (drops to much) it lowers the current untill the voltage is stable.
A HTC One charger I sometimes use (0,7A rated) only delivers 0,8A. A aftermarket charger I own (1,0A rated) is fine delivering 1,2A (modified target current, not stock). These charging currents can be read by various apps.
Get yourself a 1,0A rated charger and speed up your charging time.
Benjamin
burmo said:
Hi,
Background - I am an electronic engineer and have designed power supplies.
The Amp rating on a power supply is it's maximum capability to deliver power. The Voltage is the 'force' that it can push electrons through the device, this is the important one to have correct. So a 5V 300A Power supply will not charge your S3 any quicker than a 5V 1A power supply.
Get yourself a 1A car charger and you'll be fine. Depending on how the data pins on that charger are configured it'll be recognised as either a fast or slow charger but it will be fine in any case.
Click to expand...
Click to collapse
Seconded the post above being an electronic engineer as wel.
Voltage should be exactly the same as you need, but this will always be the case for a USB charger.
Current should just be enough or more.
The charging current is dictated my your phone and not - and I repeat - NOT by your charger!
mine rates at 1A
Hello
I have a Galaxy S2 and I want to buy a charger for S4 to win in terms of time.
A charger S2:
OUTPUT: 5V / 0.7 A (Less amperage More Time)
A charger S4:
OUTPUT: 5V / 2A (more amperage Less time)
Does it have an impact on the life of the battery?
S4 charger won't work the way you think with S2. The S2 will only draw a maximum amount of current, you can't force it to charge at 2A.
I need a spare charger for Galaxy S4 while being at work. Does an original charger from Galaxy S3 will work with Galaxy S4? Considering my bunch of extra batteries including a mpj extended battery and OEM batteries, and my friend have a spare S3 charger. I'm not so sure it will work or not…Anyone out there have tried charging your S4 with different charger?
It will be fine
Sent from my SCH-I545 using Tapatalk 2
aramchaos said:
I need a spare charger for Galaxy S4 while being at work. Does an original charger from Galaxy S3 will work with Galaxy S4? Considering my bunch of extra batteries including a mpj extended battery and OEM batteries, and my friend have a spare S3 charger. I'm not so sure it will work or not…Anyone out there have tried charging your S4 with different charger?
Click to expand...
Click to collapse
Shouldn't be a problem at all
Sent from my SCH-I545 using Tapatalk
aramchaos said:
I need a spare charger for Galaxy S4 while being at work. Does an original charger from Galaxy S3 will work with Galaxy S4? Considering my bunch of extra batteries including a mpj extended battery and OEM batteries, and my friend have a spare S3 charger. I'm not so sure it will work or not…Anyone out there have tried charging your S4 with different charger?
Click to expand...
Click to collapse
The S3 charger outputs 1 Amp whereas the S4 charger outputs 2 Amps. While it will work, it will charge slower.
You can use the Galaxy Charging Current app to determine how many watts your S4 is receiving and you will notice a difference.
I am using the stock charger for my galaxy s6 and on my charger it shows a rating of 5v at 2.0A but when i test it with "Ampere" app, it shows 1020mA maximum. Is it supposed to charge at this speed? I am using a good quality cable with gold plated connectors and 24awg core. I also tried two different wall outlets
Hey there,
It's a little quirk I have noticed with my phone too... it DOES charge faster... but only when the screen is off... when the screen is on its limited to around 1amp charging...
Am I correct to state that nor the 25 watt charger that comes with the note 10+, neither the 45 charger that I bought separately speed up the charging when used on the tab s6?
Well, if you do have a 45W charger that's for you to tell us! Usually a charge with the provided charger last something like 4 hours for me.
First of all it's a 25w charger that came with the note 10+, it's a 15w that came with the tab s6 and yes from all I see and read the tab only has a 15w charging system in it. Using the note 10+ charger(which I do use) doesn't make any significant difference. I do want to try the old 25w charger I have from my galaxy book, but I doubt that combination of A/V will improve it either.
And, that's what I thought. That's a pity they didn't put the hardware to charge with a 25W when they released the Note 10+ with it at the same time! So sad...
Thanks for your feedback anyway!
gottahavit said:
First of all it's a 25w charger that came with the note 10+, it's a 15w that came with the tab s6 and yes from all I see and read the tab only has a 15w charging system in it. Using the note 10+ charger(which I do use) doesn't make any significant difference. I do want to try the old 25w charger I have from my galaxy book, but I doubt that combination of A/V will improve it either.
Click to expand...
Click to collapse
My mistake.25 of course..