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Use iPhone charger for Nexus One?

Hi guys,
since the charger of the iPhone has an USB connector, my question is if I can use that charger for the Nexus One too??
Since it supplies actually the same energy level (both can get energy from a PC USB instead), does this mean that also the charger delivers current with good specifications for the N1?
thanx in advance
exelero

How are you going to plug the iPhone 30 pin in to a micro USB? Maybe I'm not understanding you correctly.

to plug the microUSB-to-USB cable of the Nexus One into the USB socket of the iPhone charger.

moto1907 said:
How are you going to plug the iPhone 30 pin in to a micro USB? Maybe I'm not understanding you correctly.
Click to expand...
Click to collapse
I think (s)he means the mains adapter part with the USB socket in it - in which case yes it will work, you just need the right cable - which came with your N1
Looking forward to when all manufacturers standardised on micro usb, for a while I thought that mini usb was micro, so I was surprised to see that the n1 was different then I found out....

ok, now i see. Not enough coffee yet,lol

scote said:
in which case yes it will work
Click to expand...
Click to collapse
yeah, from the connection part, I know it will work. my question was more related if the iPhone charger delivers the appropriate current (tension/amperage) conditions for the N1 and, let's say, it won't burn the N1 due to a too high voltage, or mess up the battery due to an incorrect tension input.

I was just having a conversation on chargers with a friend of mine the other day and googled around on the subject on amperage/current/Ma of chargers..
I stumbled upon these posts (either here on XDA, Androidforums or other forums):
1. "The current rating on a voltage source is the maximum amount that the power
source can deliver without exceeding its saftey rating.
What this means is that if you are using some device that has a power supply
with a current rating of 500mA then its best not to use a different power
supply(at the same votlage rating) with a lower max current rating. i.e.,
anything < 500mA. Now ofcourse you might be able to get away with it but if
it burns down your house then its your fault.
A device will only pull the amount of current that it uses(assuming it is a
voltage controlled device) and this is true regardless of the current
rating(hence the saftey issues I discussed above). If a device
says(sometimes they don't) it uses 500mA then it uses 500mA. Maybe it
doesn't use 500mA all the time but the engineers have put that rating there
for a reason. Using any power supply with the right voltage and a current
rating of anything more than what the device uses is ok because the device
will only pull the current it uses.
Now, about the voltage rating: The voltage rating does not have to be exact
and different devices can tolerate different voltage ratings. The problem
usually is one of current. By increasing the voltage, say, you increase the
current the device uses and then you have changed the parameters that the
device was created with."
2. "And as far plugging your phone into a charger that outputs well over 850mA, don't worry about that either. Unlike voltage, the more amperage the merrier because the device will only take what it needs of the available resources."
3. "Moral of the story. Match the Voltage (5.1Volts) Meet or Exceed the 850mA rating. (which is .850 Amps) and you'll be fine."
4. "amps are not pushed but drawn
amps is the max the charger can provide
before it get pressured and lover the volts
you could use a 5volt 10000MegaAmp charger
and the device would only draw the amps the device
was made to draw all the rest of the amps would stay
at your electricity company
ohms law state Amps == volts / residence"
5. "amps are not pushed but drawn
ohms law state Amps == volts / residence
In other English:
P = VI, where
P = Power of device (watts) and is fixed
V = Voltage used by device (volts) and is fixed
I = Current (amps) and is decided by P/V (a fixed ratio)
So the device cannot draw more current than the fixed ratio. It may draw less current if the charger cannot supply the highest amount, but then as in one of the above posts, it simply takes longer to recharge.
With these devices, milliWatts/miliAmps are the scale, 5V is generally the fixed Potential Difference.
Used in a vehicle, the device is generally both drawing and expending energy (ie. charging and running say, GPS) simultaneously. This in/out situation when prolonged is the cause of the observed overheating with the original X1 battery."
Click to expand...
Click to collapse
Bottom line... Make sure the voltage is 5V, the amperage doesn't really matter.

thanx for your feedback.
both chargers have the same output (5V, 1A) - so I am already successfully using it.

blackberry storm also has micro-usb
hello two chargers and an extra usb-cable

To answer the OP's question...
yes it works fine. I have one in my car and charge my ipod and nexus at the same time without issue. The advanced zune car adapter also works (in case one of the 5 who own a zune are reading this ).

I have been using my old Iphone white plug -> USB adapter for almost a month now and I haven't had any issues.

I tried using the iPhone charger but it charges slow...it does not quick charge. Am I doing something wrong?

uhohhotdog said:
I tried using the iPhone charger but it charges slow...it does not quick charge. Am I doing something wrong?
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Click to collapse
no. If i'm up to date, and i think i am, you'll only get the 'fast charge' if you use the charger that came with your phone. the usb to usb micro chargers all charge slow

Can i use X10 mini charger (5v DC 850mA output) on nexus one by the things i read i understand that i can't but my english is not very good. Thanks

if youre talking about using the iphone usb cable on your n1, HAHAAHHAAHAHAHAH
if you mean using the usb-to-AC adaptor then yea you can use any usb cable to charge anything pretty much..

[Q] Alternative chargers, voltages and mAmps

Hi all,
I have various chargers at home for the various pieces of kit we have.
My Asus Transformer tf101 has a charger which outputs at 15V, 1.2A
We have other chargers for phones & another tablet all with usb sockets on them.
An HTC outputs 5V, 1A
An Alcatel outputs 5V, 350mA
A Lenovo outputs 5V, 1.5A
Can anyone confirm my understanding about which charger to use and when, please?
I believe that if I use a charger with a LOWER voltage & amerage output than that delivered by the dedicated device charger, that it will NOT damage the device I charge with it - but it will probably take longer to charge. Is this correct?
So I shouldn't use my tf101 charger with anything other than my transformer tablet because it is 15v. But would it be OK to mix any of the other chargers around as they are all 5V? EG could I safely use the HTC charger on the Lenovo? Does the output amperage figure matter, or just the voltage?
Presumably I could use the 5V chargers on the tf101 - but it would take 3 times longer to charge? Could I use the Lenovo charger on the tf101 or would the higher amperage damage the transformer, even though the voltage is lower.
Advice please, helpful members

janner43 said:
I believe that if I use a charger with a LOWER voltage & amerage output than that delivered by the dedicated device charger, that it will NOT damage the device I charge with it - but it will probably take longer to charge. Is this correct?
Click to expand...
Click to collapse
This is my understanding: I believe it to be correct, but I may be wrong.
You must match voltages, if you use a charger with too low a voltage, it won't damage the device, but it won't work either. If it's too high, that would potentially damage the device and not work.
You need not match amperages (current) but in order for it to work correctly, you must use a charger greater than or equal to the rated current, eg., if the device wants 3A and you supply 5, this _should_ be OK, as the device only draws 3. But if it's _too_ high and you may exceed cabling tolerances, as the cables are only designed to handle current up to a certain amount, but I won't worry about this unless you're intending to supply currents >10A, say.

You can't charge a 15 volt device with 5 volts you could leave it charging for a million years and it would still only be 5 volts.
You can't charge a 5 volt device with 15 volts or you will cook the electronic components inside.
Another thing to remember the plugs used for different devices will be different sizes. The charging voltage's are usually direct current (DC) with a positive and a negative so you must make sure that the connections are correct.
As for the current rating's of the other chargers my experiance has showed me that isn't quite as important, as the current rating listed on the label is the maximum current that the power supply should have taken out of it.....
If you need to know more about basic electronics there is plenty of sources of information if you search Google.
Sent from my HTC Legend using XDA App

You should always use a charger with same volts of the stock one. The amps is relative, it will determine how fast it "delivers" the current, so the greater it is, the faster it charges...

Question about chargers

I have an HTC Explorer, which came with a USB cable and an adapter to allow me to charge via mains as well. (Something like this: http://i.expansys.com/i/g/g232723.jpg - that's not the exact same one, but you get the idea). This charger says on it that it has an output of 5V and 1A. I also have a Blackberry Playbook, which came with a charger with a micro USB connector. However, this charger says on it that it has an output of 5V and 2A.
I have tested the HTC charger with my playbook, and it worked, but the question I want to ask is this: would it be dangerous to try the playbook charger on my HTC phone? (2A output from Playbook charger versus the presumably expected 1A input on the phone) I would like to be able to only carry one charger when travelling and the playbook charger has interchangeable adapters for international plugs, so it would be better to take, but obviously I don't want to overload the phone and have it burst into flames or whatever.
Any advice on the matter would be great, thanks.

It's not recommended by the manufacturer. It can void your warranty, though I don't know how they'd ever find out you were doing so. There can also be issues when using the cable to transfer data and such.

I did watch a video about that Blackberry charger.
Supposedly because of that 2A output, it charges your phone twice as a fast.
Sent from my Ainol Novo7 Elf using xda premium

I don't think there would be considerable damages but..I'd just use them both, even if it's less comfortable

I looked around and I think it should be safe. From what I've read online, the phone will only take a certain amount of current, regardless of the current being made available by the charger. Because the voltage is the same (5V), and the resistance of the phone circuitry is constant, by Ohm's law, I = V/R, so I will always be the same as long as V is the same. Presumably it'll drop with a lower input current, but the max I will always be the same, and that'll be limited to a safe level.
It might take a slightly higher current (say if the max the phone can take is 1.2A or something, the 1A charger can only give 1A but the 2A would give the full 1.2A), but no higher than the circuits in the phone will allow. After reading this, I realised that it made a lot of sense, and I think it's right. I also read that if it does charge the phone faster (which it will if the phone is taking a higher current e.g. 1.2A) it'll reduce the number of charging cycles that you get out of the battery. But the consensus seems to be that doing it every now and again when travelling etc. should be fine.
Thanks for all your responses.
EDIT: I think at worst, I might damage the battery, and they're not overly expensive to replace I don't think.

I agree, the rating on the charger is what it's MAX output, not that it will push that much current to your device. If you have an extra USB cable (that you dont mind cutting apart) and a mulit-meter, you can check to see how much current your phone is pulling from the BB Playbook charger. connect your mult-meter in-line with the red wire in the usb cable (just connect all others together)
Just make sure your mult-meter is rated for at least 2A.
Hope this helps.

Devices with lithium batteries usually have a charger circuit that limit the peak current that is sent to the battery. They also utilize temperature compensation so if you are charging the battery too fast, it starts limiting the charge current.
Where you might have a problem is when it's plugged in and you are using it, especially if the battery is low. You get high charge currents, combined with the operating current.

Car Charger

I was wondering if this car charger was safe to use on my Blaze (a Scosche 2 USB port charger). The info on it says:
input: 12-24vdc, 1.5a
output: 5v, 2a RoHS
(made in chine etc).
I have heard conflicting opinions about the use of third party devices for charging. Most notably, the T-mobile chat reps say they
"do not recommend" using them, but the ones on their very own website are mostly third party ones (at least they appear to be to me).
I have also heard that as long is the plug fits on the phone correctly it is safe.
Could someone clear this up for me? Will the scosch work and be safe? Or, could you recommend one that is safe to use on my blaze?
Thank you so much!

That will work perfectly fine. 5v and any amperage will be acceptable. The stock charger is good for 1A, so charging on a lower amperage charger will only increase the charging time.
I believe the Blaze will only pull around 1A max when charging, although a kernel tweak should be able to unlock fast charging in the future, if it already hasn't.

namaui said:
That will work perfectly fine. 5v and any amperage will be acceptable. The stock charger is good for 1A, so charging on a lower amperage charger will only increase the charging time.
I believe the Blaze will only pull around 1A max when charging, although a kernel tweak should be able to unlock fast charging in the future, if it already hasn't.
Click to expand...
Click to collapse
Thank you for your reply. Yes, it was the 2A output that concerned me after doing some reading. Can anyone confirm what the max amperage the Blaze will allow? I just want to be sure that 2A will not be a problem.
NOTE: It charged my old Iphone 3GS fine.

The charger does not "push" 2A to the phone, the phone draws as many amps from the charger as it can provide. The 2A rating just means that it will be able to quickly charge a device that needs that amount of power, like an iPad. Most phones will draw between 500ma (.5A) and 1A.

Uncle_Woody said:
Thank you for your reply. Yes, it was the 2A output that concerned me after doing some reading. Can anyone confirm what the max amperage the Blaze will allow? I just want to be sure that 2A will not be a problem.
NOTE: It charged my old Iphone 3GS fine.
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Click to collapse
its kinda like bandwidth... the charger doesnt push 2A, the charger's bottleneck is 2A. If the phone charges at 1A, only 1A will be going through the charger regardless of the charger's 2A limitation.
At least that's how i think it is... its been a long time since my Electrical Engineering portion of Intro to Industrial Maintenance in highschool....

Faster charging?

i recently bought the P900 (wifi version).
full charge will take around 5 hours, which in practice translates to 4 hours (i never get to 0% and charging from 90%\95% and on will be slowed down by the device anyway).
is there any way to speed up the charging?
like buying a 5.3V 3A charger. will the OEM cable be able to transfer the additional current?
could the device even take advantage from a 3A charger?
if so, can you recommend on any?
its important to me because i always use 100% brightness.

No. In the past mobile devices (mostly phones) shipped with cheap 500ma chargers and bumping up to higher amperage chargers would have an affect on charge time. Those days are gone as charging efficiency of chargers and cost to produce have lead to included chargers being optimized for charging times. Charging circuitry in the devices is going to take what it's rated to take and no more, so once a charger is plugged into it that's rated the same as the device is designed to take there's little else that can be done to speed up charging.
Bottom line - the charger that came with the tablet if it's the official one (i.e. if you bought new, not used and someone included the wrong one) is optimized to charge the tablet at the fastest rate. Based upon the numbers you noted your charge times are not excessive, the tablet is designed to take around 2A and it won't take 3A even if the charger is rated for it.
If you want faster charging you need to sell your tablet and get a Snapdragon variant instead (LTE tablets from various carriers) or start practicing better battery management to reduce how depleted your tablet gets. For me that means not running at highest brightness unless I really need it and topping off the battery whenever I can. When I get really low and I have a reasonably long period that I can charge I'll sometimes shut the tablet completely down rather than put it to sleep so that charging is accomplished with near zero load on the battery.

oh, bummer.
well, i guess i would have to learn how to live with that.
TY for your reply.

im planning on buying a 2 port charger so i wont have to carry so many stuff with me,
how much slower the device will charge with a 5.0V charger?
should i look for a 2 port 5.3v charger? a normal device wont have troubles with that?

It's not the voltage it's the amps. If you want to charge two devices simultaneously as quickly as possible the power supply needs to be rated to output the wattage necessary to provide the amperage the devices will draw for maximum charge rate.
My recommendation is to find something capable of over 20 watts (2A x 5V = 20watts). I'd buy this for future Qualcomm quick charge use.
https://www.anker.com/products/A2031111
Sent from my SM-P900 using Tapatalk

my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.

Yonany said:
my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.
Click to expand...
Click to collapse
Yes but you also noted that you want to buy a 2 port version and I'm saying that the voltage is only part of the equation. Unless you are already aware that you need one rated at 2A simultaneously (you didn't specify). I honestly never measured between the two, I do not worry about 5V vs 5.3V since the charging voltage of the lithium ion cells is under 5V anyway. AFAIK the current is more critical. Maybe someone else more knowledgeable in electrical engineering can chime in since I'm unsure how the charging circuit within the phone will step down the voltage from the charger to the battery. All I know is if one tops off regularly or charges overnight there's no night and day difference between the stock 5.3V charger and a 5V one so long as the aftermarket one is rated 2A or more.
Sent from my SM-P900 using Tapatalk