Hello all,
Recently purchased a Galaxy S II coming from the first one, liking it alot.
Just wondering, does anyone know if Samsung modified the charger as they did with the original?
I'm not sure on the specifics of what they did, something along the lines of shorting out the data lines on the USB which would let the phone know it's a official charger and let it charge at full speed.
TL;DR can I use any USB charger to charge at full speed?
Thanks,
Spectre
My other android phone chargers (the one I have from my HTC Hero) charge as fast as the original actually!
Spectre714 said:
Hello all,
Recently purchased a Galaxy S II coming from the first one, liking it alot.
Just wondering, does anyone know if Samsung modified the charger as they did with the original?
I'm not sure on the specifics of what they did, something along the lines of shorting out the data lines on the USB which would let the phone know it's a official charger and let it charge at full speed.
TL;DR can I use any USB charger to charge at full speed?
Thanks,
Spectre
Click to expand...
Click to collapse
You could use ANY Micro USB charger connector. However if you use a USB cable, it won't do at full speed charging.
The stock charger only outputs 700mA so with a stock kernel that lets the phone draw more (Its capped to like 650mA), upto 1A and a 1A charger it will charge a lot faster.
Gets a bit hotter while doing it though, nothing to be to worried about.
YMMV/not my fault if it explodes/etc
Hello guys,
Like most of us Android users I had some previous phones that were Android powered...
So with Motorola Milestone I had a 12v car charger, I used it too much with it, now I have a Galaxy S2, if I use the Motorola's charger to charge my phone there will be any problem?
Thanks in advance!
Sent from my GT-I9100 using XDA
danielmelo said:
Hello guys,
Like most of us Android users I had some previous phones that were Android powered...
So with Motorola Milestone I had a 12v car charger, I used it too much with it, now I have a Galaxy S2, if I use the Motorola's charger to charge my phone there will be any problem?
Thanks in advance!
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
I use my sony charger to charge my HTC evo3d.no problems so far.but iam not sure about Motorola
Sent from my LT15i using xda premium
The important part here is the voltage the car charger outputs. I believe the standard Galaxy S2 outputs 5V (at 700mA [0.7A]). If the mA is lower, it will take a longer time to charge. If its higher, it will only draw from it what it needs.
So, check the output voltage of the charger is not higher than 5V and you should be ok.
Wezi said:
The important part here is the voltage the car charger outputs. I believe the standard Galaxy S2 outputs 5V (at 700mA [0.7A]). If the mA is lower, it will take a longer time to charge. If its higher, it will only draw from it what it needs.
So, check the output voltage of the charger is not higher than 5V and you should be ok.
Click to expand...
Click to collapse
Many thanks!
I'll use it now without any worries so!
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
Sent from my GT-I9300 using Tapatalk 2
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
i brought two chargers yesterday for my galaxy s1 and s2 i forgot which charger to use on both phones can anyone help me.
harry2013 said:
i brought two chargers yesterday for my galaxy s1 and s2 i forgot which charger to use on both phones can anyone help me.
Click to expand...
Click to collapse
i am using a 'Sony xperia x10i' charger with my S2 and there is no problem as such for now
So IMO it doesn't make much of a diff with S1 and s2 chargers for now as long as they are micro usb for u
can anyone please tell charger specifications of s1 and s2
Google.
Output voltage varies
sent from tapatalk
Chargers
corruptionfreeindia said:
Output voltage varies
Click to expand...
Click to collapse
I use the same micro USB charger for many different devices both at home and at work. The handset (kernel) is what determines the load that it pulls and as long as the charger can deliver it no harm is done* (to the charger). I have yet to find a handset, even through custom kernels, that can draw more then the charger can supply (assuming charger is in the wall and not connected to a computers USB port).
* If you are playing with the charging current on a kernel then you can damage / explode batteries and burn out main boards on handsets.
Hello Guys i need help about wireless charging
I am a bit confused which one to use for My s9 plus there are so may with different volts and amperes
So which on is good for s9 plus regarding to Volts and Ampere and also the type of cable.
Thanks
MacAmb77 said:
Hello Guys i need help about wireless charging
I am a bit confused which one to use for My s9 plus there are so may with different volts and amperes
So which on is good for s9 plus regarding to Volts and Ampere and also the type of cable.
Thanks
Click to expand...
Click to collapse
i'm using this one:
https://www.ebay.com/itm/Fast-Qi-Wi...ca884f53b:m:mRgzV9fnHREbKctTqFLKO_Q:rk:1:pf:0
This is the one I am using: https://www.amazon.com/gp/product/B0775TFV7W/ and I get quick wireless charging with a case on with no issue.
Note that it does not come with the AC Adapter, it is just the stand itself. Works great for me though with a Quick Charge 3.0 adapter. I grabbed this one to go with it: https://www.amazon.com/gp/product/B07CVF53HN/
But I am sure pretty much any would work.