I know different chargers have different amps, but what i dont know is how much the phone (battery) can take at a time, even if the charger is 10 amp it doesnt been the phone get fully charge in 10 min.
Look for how much the charger gives out is not hard cause its label, but how much does the phone take?
cant seem to edit my thread (TYPO) nor find it on my profile, maybe its my browser.
Samsung phones charge at about 800mA. Samsung chargers have the two middle pins (data pins) soldered. Any regular charger, even with 2Amps will only max at about 330mA charging. The phone needs to detect that the two data pins are soldered. So higher Amps is not equal to faster charging unless you are using a Samsung charger or you have the data pins soldered( pretend to be Samsung charger)
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No. The phone will regulated the charging on the device as lipoly batteries have a specific charging method. It is possible (for example) that the device may charge at 500mA maximum current draw, but a charger is rated at 1A. This would meen that the charger could output 1A without the voltage falling so in theory the usb output could be split between two devices. If the charger was rated at 300mA but the device needed 500mA then the output voltage may be very unstable and damage either the phone or the charger.
Choosing a higher rated charger will not charge the phone faster. Any attempt to do so with Lipoly chemistry could result in explosion.
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This is were i got my info from:
http://forum.xda-developers.com/showthread.php?t=1384253
Were did you get yours from?
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Alright, so I have a mini USB car charger that is rated at 2.0A (got with GPS) and I just want to make sure the extra amperage is not going to charge my battery too quickly and then kill it in the process. All I have to go on is that my wall charger is capable of only 1.0A and the computer USB is on the level of mA. Does anybody have a car charger or know the maximum amperage possible that these phones can take?
Thanks in advance.
Its to Strong ! I have Crash a PDA with 1.5A
I've used a 2.0a charger but noticed that the battery didn't charge right.
On that note, also noticed that a .5a or 500mA charger after about 6 months killed my battery. (burned out and won't take a full charge anymore)
Recommendation is to stick to 1.0A charging as much as possible as the Wizard's charge circuit is designed at 1.0A charging and monitoring.
DOESN'T MATTER ..if u know the basic Ohms Law..its the max capacity of the charger.(or any source) the current regulating circuits will take care of the real charging current fed to the battery
I charge my phone on my computers USB connection all the time, all computers have a maximum of 500mA USB current.
Amps are pulled from the charger, not pushed to the phone.
Voltages are pushed to the phone, not pulled from the charger.
If the phone draws too much current from the charger, the voltage drops to a point where the maximum power (P (Watt) = U (Voltage) * I (Amps)) of the charger isn't exceeded.
According to the USB specification you need at least 200mA with 500mA recommended +5VDC.
More is never a problem, you could even use a 50A power supply without breaking your phone. Practically spoken: I wouldn't do that.
huh?
I have messed up a few devices before by putting the wrong charger on the device (2.0 amp charger on a droid eris and 1amp charger on the MOTOACTV) Is this a problem with the device's charging circuit? In general it should only pull up what it needs to charge but my devices were messed up?
I returned the first MOTOACTV after it wouldn't leave the boot screen and the second one I got acted funny on 1 amps as well. It charged fine on .75amp charger that came with the device but when I put it on my HTC Dinc charger it shot up from 10% to 20 to 30 etc. all within minutes. Hope I didn't mess this one up too.
Just trying to figure out what the deal is. My phone for sure charges faster when connected to 1amp vs .5amp (computer). This makes sense I understand because the device is able to handle 1amp, but I wonder if it would mess up with a 2amp charger.
Thanks!
The last two posts of 2008 are correct. Your phone is capable of drawing more than 500 mA but less than 1000 mA. If the charger is 1A, 1.5A, 2A, or 50A, it won't make a difference to the phone's charging time or life.
Wrong voltage can be bad, but phones are designed to support USB charging, as a minimum, and 1A to 2A is always safe. As was said in 2008, the charger pushes voltage to the battery, but the battery pulls current from the charger.
That's a really good way of describing it
Pushing and pulling current and voltage is a really good way of describing it.. Given that I am theoretically well within the charging parameters, how comes my phone (Galaxy mini/pop) becomes unusable when its charging (touch screen doesnt touch and screen jumps to new screen without touching?) Am I wrecking my phone?
No, your charger is to blame. Maybe it isn't properly grounded. Phones with capacitive touch screens (not the Wizard! but maybe your phone) can get really weird on some chargers. I have a Nexus One with an aftermarket charger that always makes the touch screen go haywire. When I use an HTC charger, the phone has no problem. As far as I know, the damage isn't permanent, it's just that the sensors get confused. When I disconnect from the charger, turn the phone off, then turn it on, all is well.
My wizards were never bothered by chargers, no matter what kind, as long as they were mini-USB, they were the right voltage. The wizard doesn't take as much current as more modern phones, either.
Hmm. Not properly grounded sounds very plausible. Viva mediterranean circuits. Thanks
Usb chargers will be rated at 5v, which is exactly the correct voltage to charge your device. What you want to make sure is you buy the correct "rated" amperage. Not because it will damage your phone. Amperage only exists as a sum of the power used by the device. You want to find a decent 1amp (1000mA) or higher if you wish, rated usb charger. The the mains charger for your phone is only rated at 1amp, so a 1amp charger is adequate. Avoid 500ma chargers as it will take twice as long to charge and gps / satnav applications will drain the battery even when charging at that rate.
Also if you have a new pc, most of the decent boards will specify 1amp charge even when off if it has on/off charge stated on manufacture details.
Newer phones will charge fine with higher amperage
The myth that charging your device at a faster rate will reduce the life of your device’s battery is false!
If you want quicker charging, look for a wall or car charger that delivers 2100 mA of current at 5 volts higher won't matter.... These lithium ion batteries can handle it... It was just back then if you were to try to put a faster charger in an older battery it (in any cases) just won't charge.
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. :-/
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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
I notice that the standard AC/Charger is 0.7A output. Possible to use another AC/Charger rated at 1.0A output? What is the USB output anyways? Thanks in advance for any help or suggestions.
PS Still considering rooting or not (will it void my warranty?) *WUSS*
I am using my Galaxy Tab 2.5A charger to charge the S2. It still takes about the same amt of time to charge up full.
I believe the charger current rating is the max current it can supply. The S2 will still draw current at it's own max...maybe 0.7A.
Doesn't matter what charger you use on it, if it's greater than 0.7A The S2 will limit itself to 0.7A.
if you want raise charging amperage, you can help me looking for someone, who will change(raise) it in kernel...
http://forum.xda-developers.com/showthread.php?t=1132649
Given the same voltage (i.e 5V for USB), it's the resistance of the phone that determines how much current is drawn from the charger. Therefore anything above the rated 0.7A would work fine and dandy.
Thanks to all the fellas that responded! More than enough information provided.
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The standard for usb is 500mA/5v and this is what you get out of most computers, usb hubs and so on. AC to usb chargers will also run at that more often than not. AC chargers on the other hand usually run hotter, up to 1A and more. I have a 1A and a 1.5 amp and both charge this phone at exactly the same rate. It was not so with my N1 where the 1.5 was quite a bit faster, certainly appears like there is throttling going on as others stated. I would be curious why they did this when some other ODMs are selling phones with 1A and higher rated chargers.
look in the source code, wall charging is capped at 650 mA and USB is capped at 450 mA. and this makes sense why samsung included a 0.7 Amp charger.
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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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