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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.
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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
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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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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..

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.

[Q] Will charging from usb on 3 amp cause and damage?

Im looking to put a couple usb ports in my car, ive found these on ebay and the price seems right.
http://www.ebay.com.au/itm/Car-Led-...Electrical_Test_Equipment&hash=item33772bf4ec
Most other chargers ive seen are either 1.1a or 2.1a, will going up to 3a cause any damage to the device or battery?

A device will only draw as much current as it needs. Current is measured in Amperes, abbreviated A. So if you plug a device that needs 1A into a charger capable of delivering 3A, it will only draw 1A.
Problems occur when you do the opposite, like plug a device that draws 2A (a tablet) into a charger that can only supply 0.5A (500mA, an old phone charger). Then the device won't be able to charge at full rate, or maybe not at all.
As with anything sold on eBay, be wary of claims for chargers. They may not actually deliver the advertised current.

ron917 said:
A device will only draw as much current as it needs. Current is measured in Amperes, abbreviated A. So if you plug a device that needs 1A into a charger capable of delivering 3A, it will only draw 1A.
Problems occur when you do the opposite, like plug a device that draws 2A (a tablet) into a charger that can only supply 0.5A (500mA, an old phone charger). Then the device won't be able to charge at full rate, or maybe not at all.
As with anything sold on eBay, be wary of claims for chargers. They may not actually deliver the advertised current.
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Thanks for the reply, yeah i hate ebay claims when it comes to stuff mainly from china, batterys, memory cards etc.
Hopefully it works well, even if it's only 1/3 of the claimed output ill be happy for the price.

[Q] Charger Question

So, I've been wondering this for a while and thought I just ask. I've read about stories where people bought 3rd party chargers and had their phone malfunction. Because of this I have been worried about using any other type of charger and stick with the stock. Would it be fine to charge my Nexus 5 which a more powerful charger. For example the Nexus 7 charger? There's also a few other 3rd party chargers which seem to be much more powerful, but I was just worried that it would cause problems for the phone. Thanks in advance!

I've got a ton of Chargers laying around and they all work just fine. As long as the charger output is 5 volts you should be okay.
Sent from my Nexus 5 using Tapatalk

0dBu said:
I've got a ton of Chargers laying around and they all work just fine. As long as the charger output is 5 volts you should be okay.
Sent from my Nexus 5 using Tapatalk
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Exactly 5 volts? The Nexus 7 charger is 5.2

PsychDrummer said:
Exactly 5 volts? The Nexus 7 charger is 5.2
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It should probably be fine. I used my Mom's Nook charger at her house the other day with no issues.
Sent from my Nexus 5 using Tapatalk

0dBu said:
It should probably be fine. I used my Mom's Nook charger at her house the other day with no issues.
Sent from my Nexus 5 using Tapatalk
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http://www.amazon.com/Anker-Dual-Po...5839252&sr=8-1&keywords=anker+usb+car+charger
So this one is apparently 18V...says should work though. Weird.

PsychDrummer said:
http://www.amazon.com/Anker-Dual-Po...5839252&sr=8-1&keywords=anker+usb+car+charger
So this one is apparently 18V...says should work though. Weird.
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Click to collapse
the charger that you linked to is 18 W (aka Watts), but it is still 5V. it has a max output of 3.6A (amp). Watts = Volts x Amps.
As long as it's 5V, you should be fine. using a charger with a higher max A rating won't change anything, how much current that is actually drawn (amps) depends on the device.

jss2 said:
the charger that you linked to is 18 W (aka Watts), but it is still 5V. it has a max output of 3.6A (amp). Watts = Volts x Amps.
As long as it's 5V, you should be fine. using a charger with a higher max A rating won't change anything, how much current that is actually drawn (amps) depends on the device.
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Oh I see. Thanks!

Okay, quick electrical lesson.
Volts: This one is relatively fixed at 5 for all "USB-Powered" devices. However, virtually all electrical devices have a 10% allowable variance. So... anything from 4.5V to 5.5V should work just fine, and be considered "safe." Of course, this can be tricky since some less-than-trustworthy manufacturers (*cough*China*cough*) will include the 10% variance in the specs. So... a charger rated for 5.5V charger may actually be running at 5.8V, which is within the 10% variance for a 5.5V device, and since 5.5V is within the variance for the 5V spec, they'll just double-down, and stamp it with 5V, which is bad. Confused? Yeah, me too. Just stay away from those cheap eBay chargers, to avoid such shenanigans.
Amps (aka Current): The thing to remember here is that the draw is king. What I mean here is that the device drawing power is what's important. If your device draws 1A, then it will ALWAYS draw 1A, no matter if it's plugged into a 1A, 5A, or 1000A charger. However, it will also attempt to draw 1A if it's plugged into a 0.2A charger, which would obviously be very bad (well, unless you're TRYING to start a fire). USB devices are designed to draw 0.5A, since that's what USB 2.0 (on a computer) provides. However, many devices can draw more if plugged into a wall charger. So... you're almost always safe plugging into a computer, but your wall charger needs to be rated AT LEAST what the device expects. That can be hard to determine, so the rule of thumb is that whatever Amperage charger the device came with is the MINIMUM amperage charger you should use. However, there is no maximum, since draw is king, so go nuts in the other direction.
Watts (aka Power): Power = Voltage x Current, so Watts is nothing more than Voltage times Amperage. Thus, a 5V charger charging at 2A is 10W (5x2=10). Now that you know this, you can ignore it. Nobody but the electric company cares how many Watts your wall charger is pushing. The only, and I mean only, thing this is good for is determining the Amperage if the manufacturer doesn't provide it. So... if the only spec listed for your micro-USB charger is 12W, then you can figure out the amperage by dividing that by 5 (since all USB devices are 5V). Your 12W charger, therefore, is pushing 2.2A. See the section on Amps, since that's what's really important.

jt3 said:
Okay, quick electrical lesson.
Volts: This one is relatively fixed at 5 for all "USB-Powered" devices. However, virtually all electrical devices have a 10% allowable variance. So... anything from 4.5V to 5.5V should work just fine, and be considered "safe." Of course, this can be tricky since some less-than-trustworthy manufacturers (*cough*China*cough*) will include the 10% variance in the specs. So... a charger rated for 5.5V charger may actually be running at 5.8V, which is within the 10% variance for a 5.5V device, and since 5.5V is within the variance for the 5V spec, they'll just double-down, and stamp it with 5V, which is bad. Confused? Yeah, me too. Just stay away from those cheap eBay chargers, to avoid such shenanigans.
Amps (aka Current): The thing to remember here is that the draw is king. What I mean here is that the device drawing power is what's important. If your device draws 1A, then it will ALWAYS draw 1A, no matter if it's plugged into a 1A, 5A, or 1000A charger. However, it will also attempt to draw 1A if it's plugged into a 0.2A charger, which would obviously be very bad (well, unless you're TRYING to start a fire). USB devices are designed to draw 0.5A, since that's what USB 2.0 (on a computer) provides. However, many devices can draw more if plugged into a wall charger. So... you're almost always safe plugging into a computer, but your wall charger needs to be rated AT LEAST what the device expects. That can be hard to determine, so the rule of thumb is that whatever Amperage charger the device came with is the MINIMUM amperage charger you should use. However, there is no maximum, since draw is king, so go nuts in the other direction.
Watts (aka Power): Power = Voltage x Current, so Watts is nothing more than Voltage times Amperage. Thus, a 5V charger charging at 2A is 10W (5x2=10). Now that you know this, you can ignore it. Nobody but the electric company cares how many Watts your wall charger is pushing. The only, and I mean only, thing this is good for is determining the Amperage if the manufacturer doesn't provide it. So... if the only spec listed for your micro-USB charger is 12W, then you can figure out the amperage by dividing that by 5 (since all USB devices are 5V). Your 12W charger, therefore, is pushing 2.2A. See the section on Amps, since that's what's really important.
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I've plugged my device into chargers before that have rated outputs of .5A-1A when the device "expects" more... so, why didn't it start a fire?

Nitemare3219 said:
I've plugged my device into chargers before that have rated outputs of .5A-1A when the device "expects" more... so, why didn't it start a fire?
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How much "more" are you talking about?

طوني تبولة said:
How much "more" are you talking about?
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The stock charger is 1.2A, correct? So given that much... a charger I have used a few times on my Nexus 4 and 5 at a friend's place only outputs .5A... so at least .7A from what our phones should be able to draw.

Nitemare3219 said:
The stock charger is 1.2A, correct? So given that much... a charger I have used a few times on my Nexus 4 and 5 at a friend's place only outputs .5A... so at least .7A from what our phones should be able to draw.
Click to expand...
Click to collapse
An Android device knows that it's plugged into a wall charger, and thus can use more than 0.5A, only if the data pins are shorted together. Otherwise, it will assume it's plugged into a computer and only use 0.5A. Chargers made for android devices are usually so equipped. Apple chargers and some cheap-o chargers aren't. That's one reason why you'll see chargers with nothing more than a USB slot (no cable) specify that they're only compatible with Apple devices. Technically, they're compatible with any USB device, but not at the high charge rate.
Having said that, manufacturers can build in some safeguards. Quality chargers simply won't output more current than they're designed for. How they go about this varies. They may limit the output to their rated specs, they may blow an external breaker, or they may blow an internal fuse (usually killing the charger forever). Cheap chargers may not have such safeguards. Plus, many (if not most) phones/tablets will recognize when they're hooked up to a low-current source, and automatically switch to the low charge rate mode (0.5A).
In short, quality equipment is usually designed to be safe, with safeguards to protect against common scenarios. It's the cheap chargers that you have to worry about, because they tend to cut corners to keep the cost down. Safety provisions aren't technically necessary, and are usually the first to go.

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.
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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