Hello,
I was looking at getting a USB adapter for mains so i could charge my S2 using the USB cable provided. The original charger outputs 5V=0.7A.
I've seen a car USB adapter that outputs 5V=0.8A. Does the 0.1A increase affect the charge? Or will it be ok to use on my S2?
Furthermore, I've seen 2 mains USB adapters which output 5V=0.5A and the other is 5V=1A. Which of these would be better to get?
i'm curious about this as well. but if you look at other threads,
quite a number of people says that higher current rate doesn charge the phone faster or damage it. the S2 will capped the charging current to 650mA.
so no worries mate.
I occasionlly charge my sgs2 with my ipad-charger, which got 5V=2A.
Haven't got any problems with that, but it doesn't feel faster.. probably not recommdable. :-/
Sent from my GT-I9100 using XDA App
SGS2 capped to 650mA via Mains charger and 400mA via USB.
Can only be changed by using a custom kernel.
Using a charger with a higher mA wont hurt the phone, it just wont take advantage of it.
I think this is related Electrical knowledge.
for example, 5V x 1A = 5W (power). That means the transfer max. output power is 5W. If your transfer power is larger than your phone demand, that's OK. Will not damage the phone.
But i dont' know the phone charging demand
Anyone know if there is any advantage of the charger that comes with the phone compared to a generic micro USB charger?
Sent from my HTC_Amaze_4G using XDA App
They all seem to charge the phone slowly (even the included one). The stock charger is a 1 amp charger, as long as you're using a 1+ amp charger, you'll be fine. Some aftermarket chargers may be lower, they will also work but charge even more slowly. Worth mentioning is that a higher amperage charger will work, but will only charge at the same speed as the included charger.
Same..........
Just bought a new charger cause I left my other in another state, it's the dual usb 3.1 amp charger and it took me from 0 - 90% in 45 minutes. Picked it up at tmo
jre1981 said:
Just bought a new charger cause I left my other in another state, it's the dual usb 3.1 amp charger and it took me from 0 - 90% in 45 minutes. Picked it up at tmo
Click to expand...
Click to collapse
Which charger is this exactly?
Is this the 'Universal Micro USB 2-in-1 Charger' listed on TMobile's website?
I also got a cheap micro USB charger off of amazon.com and its a trickle charge and it also makes the screen unusable as in it doesn't take touch input at all it came with a data cable for the computer as well and it actually drained my battery instead of charged it.
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.
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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
Can the charger bundled with the Galaxy S4 'fast charge' other phones, or is it something to do with the phones/batteries themselves that allow the quick charging? I heard that the charger charges at 2amp as opposed to 1amp like most chargers. I dont want to explode someones phone battery because it cant handle being charged that fast, lol
shanimal92 said:
Can the charger bundled with the Galaxy S4 'fast charge' other phones, or is it something to do with the phones/batteries themselves that allow the quick charging? I heard that the charger charges at 2amp as opposed to 1amp like most chargers. I dont want to explode someones phone battery because it cant handle being charged that fast, lol
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Click to collapse
im using an aftermarket car charger with a random micro usb and it charges just as fast...i think its the phone/battery that allows fast charging
Using a 2A charger on an older phone won't hurt the phone. The phone will only draw 1A or however much current it's setup for, even if the charger is capable of delivering more.
Other devices will pull the full 2A from the charger if they can detect that the charger is of the right type to deliver it. Different chargers tell the device that in different ways. Apparently, Apple tablet chargers put a certain voltage across the data pins. Samsung high current chargers supposedly put a different voltage across the data pins. That is how the phone or tablet can tell what kind of charger it's connected to, so they will know whether to pull 2A, 1A, or 500mA (or whatever).
Hi.
The charger we use to charge our s2 gives 0.7 A to charge the battery. But Note2 has a charger of 2 Ampere output.
Will it damage the phone if I use branded chargers capable of giving higher output ???
It won't charge your phone any faster, limited by hardware. But you should be able to use the charger safely.
No it will not work ... I have original samsung charger with 0.7A and with a multimeter i testet it and real output its 1A but while it is connected to phone it charges 0.650(5)A and it cluses touch problems but only while charging
2A will make screen unresponsibile and inacurate and could damage battery
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You definitely shouldn't charge with any other charger then chargers made specifically for your phone, it can do nothing or it can make your phone trash, seriously don't take that risk.
vaibhav1515 said:
Hi.
The charger we use to charge our s2 gives 0.7 A to charge the battery. But Note2 has a charger of 2 Ampere output.
Will it damage the phone if I use branded chargers capable of giving higher output ???
Click to expand...
Click to collapse
As long as the charger is original and not cheap Chinese crap, you are perfectly fine. It is not the Amperage that matters, the phone will take as much as it needs, even if the charger gives less/more. For example :if you use a charger that gives 5v 300mA the phone will charge at 300mA.
If you use a charger that gives 5v 700mA (which I believe is the max the phone can take) the phone will charge at 700mA.
If you use a charger that gives 5v 9000mA the phone will charge at 700mA.
If you use a charger that gives 220v 300mA the phone will blow up.
This to say that Amperage affects just how fast the phone will charge, up to a max regulated by the phone itself. If you give more, you waste the exceeding. If the voltage is wrong, then you will surely have lots of troubles.
Inviato dal mio GT-I9100
Yep. Well explained