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I ordered my Nexus One without a charger and was wondering if I could just use my iPhone USB charger with the supplied USB lead?
I'm guessing that's all the charger is right? Just a charger with a USB port or a miniUSB charger?
all nexus one orders come with a charger. They also come with a usb cable, back-slip carrying case, and a headset.
Not when you want it shipped to the UK.
It adds a charger to the basket so I just deleted it
If it is in the box I'm guessing I will still get the US charger and can just use an adaptor to use in the UK..
Actually I have used the apple iphone charger with usb cables to charge a BlackBerry 8900 and a G1. I would guess it would work for this, but its your phone and your money if you burn it out
yeah youll get a US charger then. In any case all USB chargers are the same. if you have any USB charger with a USB port, you can jsut connect your included USB cable to the charger.
Driften said:
Actually I have used the apple iphone charger with usb cables to charge a BlackBerry 8900 and a G1. I would guess it would work for this, but its your phone and your money if you burn it out
Click to expand...
Click to collapse
this has micro usb i believe and the charger's you are talking about are all mini-usb. not compatible.
this is not true. the side that connects to the charger itself is still all regular USB. both mini and micro USB cables have the same pinout and electrical output standard.
i know. i'm saying that the end of the cable that plugs into his G1 will NOT FIT into the nexus one because it's MINI USB and the nexus one is MICRO USB.
thats not wat hes asking. hes asking if an iphone wall charger (which simply has a standard USB port on the other end) will work.
Ohhhhhhhhhhhhhh sorry
melterx12 said:
yeah youll get a US charger then. In any case all USB chargers are the same. if you have any USB charger with a USB port, you can jsut connect your included USB cable to the charger.
Click to expand...
Click to collapse
i think your wrong with the "all usb chargers are the same"
my usb charger (micro usb) for my bluetooth headset will not charge a cliq, it its the same in appearance, but somehow it is actually different
however, the charging cable i had when i had a cliq charged my bluetooth, but I avoided it because it was obvious the 2 chargers where different.
wootroot said:
i think your wrong with the "all usb chargers are the same"
my usb charger (micro usb) for my bluetooth headset will not charge a cliq, it its the same in appearance, but somehow it is actually different
however, the charging cable i had when i had a cliq charged my bluetooth, but I avoided it because it was obvious the 2 chargers where different.
Click to expand...
Click to collapse
correct. Certain chargers have different amp ratings. For example, GPS chargers generally require higher amount of amperage than cell phones, and certainly a lot more than bluetooth headsets
the g1 charger will not work with the nexus one. I have both phones. The behold II charger will work with a nexus one phone. my gf had the behold ii phone.
ShyTownFantasy said:
the g1 charger will not work with the nexus one. I have both phones. The behold II charger will work with a nexus one phone. my gf had the behold ii phone.
Click to expand...
Click to collapse
You mean plug-wise it won't work right? Because I just took my USB charger, took a Mini-USB to Micro-USB converter and used the G1 charger to charge the N1 and it works.
I'm not sure about the Nexus One but I know on the N900 you could have the problem of that charger not supporting the Data pins(D+ & D-) to communicate with the device and establish a power draw rate, in which case the charger won't work with the phone. The solution was either clipping the data lines in the USB cable, or shorting out the pins in the charger. I doubt the Nexus will be that picky about chargers though.
Usb Charger
Hi,
I just have ordered mine from US. I am from Europe and i will definitely have the problem with the originally supplied charger.
As i am aware all usb ports works with the same voltage - 5V., only amp rate is different. We just need the output amp rate of the original charger and have to be careful not to exceed it. The smaller amp rates are OK (just the charging time will be more.
For example in the originaly stated data from Google says:
"Power and battery
Removable 1400 mAH battery
Charges at 480mA from USB, at 980mA from supplied charger"
Just one to confirm is the original charger amp rate 980mA as Google stated?
I think you'd better to buy a new mobile phone charger for your nexus one for safety.
Just tested plugging the N1 in directly to computer using a miniusb cable w/ microusb adapter and works perfectly. It detected the phone and did that Mount SD notification. I mounted, transfered couple GB of files w/ no interruptions. Also, it charges it like normal.
Usb standard is 5V, most chargers with usb output should be 5V. The Amp is determined by the Voltage and (electrical)resistantce, check Ohm's law.
However the chargers are probably limited to a certain amperage(max amp output). All chargers I've seen have inscripted input and output values, as long as output values are within usb standards it should be ok.
I have an iphone car charger with usb out. It stays in the car and charges my family's gadgets no mather the manufacturer/type of device, as long as it supports usb charging.
So theoreticaly it should work. To be safe check the output values on the usb charger.
If n1 came with the american charger you can check the output values of that against the iphone charger output values.
Would a simple US 2-pin to UK 3-pin plug adaptor be fine?
The few gadgets I've got with US plugs I would just buy a UK version plug but since you cant just buy these in any shops (yet) will just have to wait and see what they supply first.
Anyone here with the US charger could you post the output values please
Are all of Apple's OEM iPhone wall chargers (the white little square looking one's) rated at 1 amp? They're cheap on eBay and I like their small form factor and want to pick one up for my Captivate. Thx
I use one and they work fine.
^If you have your charger on hand, would you mind checking to see if it outputs 1Amp?
On your phone, go to Settings->About Phone->Status->Battery Status. If it says "Charging (AC)", it is charging at the max amperage the charger can offer (up to 1A). If it says "Charging (USB)", it is only charging at 500mA, the max a PC USB can offer. I'm pretty sure for iPhone/iPod chargers, it will show later case on our phone because it is not wired according to Samsung's AC charging requirement. I knew this because I had a 3rd party Car charger that was designed for iPhone/iPod and it won't let my Captivate to charge in AC charger mode. I have to open the charger and make a few mod myself to let Captivate to recognize this is an AC charger, not PC USB.
On the other hand, my 1A charger from Kodak Zi8 flash cam works w/o problem with Captivate.
foxbat121 said:
On your phone, go to Settings->About Phone->Status->Battery Status. If it says "Charging (AC)", it is charging at the max amperage the charger can offer (up to 1A). If it says "Charging (USB)", it is only charging at 500mA, the max a PC USB can offer. I'm pretty sure for iPhone/iPod chargers, it will show later case on our phone because it is not wired according to Samsung's AC charging requirement.
Click to expand...
Click to collapse
ty for the reply. I modded a usb retractable cable by shorting the middle connectors and when I go into settings it shows it's "Charging AC". This is with a generic 700mA usb wall charger I got with a cheap connector kit for my old iPhone.
Anyway, I recently got my Captivate and I find myself constantly playing with it, but it kills my battery doing so. I just want to charge my phone as quickly as possible so I can continue playing with it some more (in a good way).
I like Apple's wall charger because it's small.
From what I have read they are rated at 650 mv so fox is right that they will show as a usb connection. I have never really paid attention and am making a relatively uneducated, yet randomly tested, through my own purely subjective method of simply plugging my phone into anything that will allow my usb cord access, guess that anything with a female usb connection is fine.
Li-ion batteries are kinda dangerous so I am pretty sure there is some sort of idiot proofing built into the charging circuitry in the phone as well.
I'm pretty sure the Captivate will only draw the amps it needs so there should be no danger whether the wall charger is 1 or 2 Amps or more.
The difference is simply the charge time. The phone needs about 3 to 4 hours to get a full charge on the stock 700mA charger. When using generic USB chargers, it will be limited to 500mA max regardless what the charger is capable of and the full charge time will be proportionally longer. The bigger problem is that when your battery is really really low, 500mA may not be enough to even start the charging. That's why you need always keep the OEM charger handy for emergency.
BTW, for a car charger, 500mA won't keep your bettery from draining if you run navigation app that needs to power GPS chip, keep the screen on and download map from 3G connection at the same time. It requires 700mA or more. That is why it is very critical for a car charger be recognized by the phone as AC charger to draw more juice.
Ok, as I stated in my previous post I modded a USB cable by shorting the two middle data connectors, which tricks the Captivate into thinking it's charging with AC through my generic 700mA wall charger. It also says in settings it's "AC Charging" when I looked.
I just wanted to know if the iPhone's wall charger is rated at 1A or was it 650mA?? as newter55 stated.
thx for everyone's help.
Edit: My mistake, I thought I posted this in the Q&A section.
For some new PC motherboard with USB3.0,
they can output 900mA~1000mA(1A) in one single USB port.
You may check this out http://goo.gl/TUaef
If your PC is already 2 years old or older, the usb will only output 500mA in the max.
And, most Li-ion charger are smart enough.
In fact Li-ion charger circuit need to be well design in current control and over current/charge control.
The circuit will not pump full current to the battery in the beginning,
and it will not draw too much, so no need to worry about burn it up.
However if the current is too high let's say 10A.... it may possibly burn the circuit.
Maybe it is a bit difficult to measure current, you need to cut the wire and plug it to ampmeter....
Here is some reference.
500mA - full charge need over 3hrs
700mA - around 2hrs
1A - ~1.5 hr
johan8 said:
For some new PC motherboard with USB3.0,
they can output 900mA~1000mA(1A) in one single USB port.
You may check this out http://goo.gl/TUaef
If your PC is already 2 years old or older, the usb will only output 500mA in the max.
Click to expand...
Click to collapse
It is not about USB port side. The phone itself also detects and determines how much current it will draw. If it detects it is a PC USB, it will only draw 500mA max as Captivate is designed following USB 2.0 spec.
Ok, thanks for everyone's help. I was able to find out on my own after scouring the internet and talking to someone who has the Apple wall charger and it is indeed 1Amps. I believe all wall chargers that come with the iPhone 3g and all iPhone models after are 1Amps. Not sure about the original iPhone 2g.
Also, for curiosities sake, the iPad USB wall charger is 2Amps.
foxbat121 said:
It is not about USB port side. The phone itself also detects and determines how much current it will draw. If it detects it is a PC USB, it will only draw 500mA max as Captivate is designed following USB 2.0 spec.
Click to expand...
Click to collapse
Maybe.
I don't know the control circuit inside GalaxyS.
But USB2.0 doesn't means it is just 500mA.
iphone is just usb2.0, but it is the only thing can draw 1A from USB ?
http://goo.gl/GVqKl
(with designated m/b)
johan8 said:
Maybe.
I don't know the control circuit inside GalaxyS.
But USB2.0 doesn't means it is just 500mA.
iphone is just usb2.0, but it is the only thing can draw 1A from USB ?
http://goo.gl/GVqKl
(with designated m/b)
Click to expand...
Click to collapse
You're missing the point. The charge port on the phone can draw more than 500mA but only if it detects it is connected to a AC charger. Like mentioned above, you have to short the data PINs on the USB port or cable to let the Captivate think it is connected to AC charger. For iPhone, the data pins need to be connected to certain specific voltages in order to let iPhone know it is connected to an Apple AC charger.
When the phone can not detect AC charger characteristics, it falls back to PC USB 2.0 spec which is 500mA max.
I use one to charge my Zune. Haven't had a problem.
foxbat121 said:
You're missing the point. The charge port on the phone can draw more than 500mA but only if it detects it is connected to a AC charger. Like mentioned above, you have to short the data PINs on the USB port or cable to let the Captivate think it is connected to AC charger. For iPhone, the data pins need to be connected to certain specific voltages in order to let iPhone know it is connected to an Apple AC charger.
When the phone can not detect AC charger characteristics, it falls back to PC USB 2.0 spec which is 500mA max.
Click to expand...
Click to collapse
I fully understand what you're saying.
In iphone3, it can only draw 700mA from USB,
IP4 can draw nearly 1A from "computer" USB.
While iphone are just USB2.0 !
GalaxyS can draw 1A in max.
But does it like iphone4 can draw 1A from PC USB ? I don't know.
Or just like IP3 can draw only 500~700mA ?
I don't have new m/b and ampmeter so can't testing on it.
I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
i've heard it has to be turned off for the USB charging to work....
Like off as in screen off or off as in complete off ?
It will not charge in your computer. You have to charge it in the wall.
Sent from my Desire HD using XDA Premium App
One of the pamphlets that came with it said the screen has to be off in order to charge it using a computer's USB port, cause the screen uses too much power and a USB port doesn't output as much, its best just to charge with the ac adapter. Nothing is wrong with your unit, thats just how it works.
Dark lord me said:
I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
Click to expand...
Click to collapse
Turn off the screen and it will charge. (you don't need to turn it off; you just need a black screen) It is very, very slow though.
My wall charger never charged my tablet so I am awaiting a replacement. The USB charge is MUCH slower than the wall charge. We are talking about maybe 4-5% an hour -- max with the USB cable alone.
Connecting this thing to a computer will NOT charge it. Even a normal 5V 1.2A-2A charger won't charge it fast enough. I used a 2A charger and it trickle-charged for over half a day and managed to clock in @ 50pc. I think the unit uses hardware info from the ASUS charger to detect the charger. Any other charger wont do.
Isn't the cable and charger USB 3 and charging is at non USB 2 values (voltage and current).
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
ChristoA1 said:
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
Click to expand...
Click to collapse
Tried a 2.1A 5V charger. Took about 8 hours to charge @ 50pc. The ASUS charger is rated at 1.2A.
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
makaveli25 said:
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
Click to expand...
Click to collapse
No, one end of the charging cable is regular USB and the other end (tablet-end) is proprietary. You can transfer files over by connecting to your computer's USB.
awesome, thanks.
do you think that if you get a male/female USB converter, you could plug in a USB memory stick device or a mini hard drive device and have it work fine in the charging cable just like you would if you were to plug in a mini hard drive into one of the usb ports on the dock?
Currently using BuoyAOSPsy v131 ROM
I have noticed that my battery still drains while I am plugged in and the phone indicates it is plugged in. Have not tested this while plugged into a wall jack, only in my car or via USB to computer.
When this occurs I am using GPS/Navigation software, active data connection (ofc), and playing music.
Does USB or car adapter not supply enough "juice" for this phone to run multiple applications/features? Is there anything I can do to remedy this, such as try a different car adapter? What specs do I need to look for to ensure appropriate power transfer?
Thanks!
**@ Moderators: Hopefully I placed this in the correct forum. Since it is not necessarily directly related to the ROM I thought it should be kept out of the ROM's thread.
Yes you can easily draw more power then its supplying when using computer or car charger. Most of the time its only charging 500 ma when charging that method. Wall charger's I believe are 1000 ma. Navagation is a HUGE draw on battery.
u921333 said:
Yes you can easily draw more power then its supplying when using computer or car charger. Most of the time its only charging 500 ma when charging that method. Wall charger's I believe are 1000 ma. Navagation is a HUGE draw on battery.
Click to expand...
Click to collapse
Thank you for the info. Guess I'll just have to find a higher quality car adapter.
Actually ive read when using a data cable ie stock or regular micro usb cable on a usb port on your pc or a regular charger the max it will get is 500ma. one of the oem wall chargers (block with usb port) is able to supply 1000ma and the phone is only able to sense this the data pin + and - are shorted together. this tells the phone its charging ac plugged vs usb. now check the output of your car charger and if its able to supply more than 500ma then you can either short pins 2-3 on your cable or on your charger and you will get maximum current draw. Research it you ill there was an article posted on xda somwhere.
I'm getting 1000ma from both my ccar charger and AC adapter. u don't want to pin short a cable and charge from usb. drawing that much power will damage the port, it wasn't designed for that (1.0,2.0). USB 3.0, on the other hand :-D
Anyone wanting to know how to fast charge using the usb port on your pc/laptop?
This usually takes ages compared to charging via mains lead, the hack itself is quite simple and involves modifying the usb cable
my results are as follows (these can vary depending on what you are using your phone for, what background apps running, etc.
charging with mains lead :
4.2v
998mah
mains ac
charging with STANDARD usb lead:
422mah
3.999v
standard usb
and finally the MODIFIED usb lead hack:
4.161v
782mah
usb hack
as you can see it is a 53% increase in charging compared to standard usb charging mah, and slightly under mains ac charging mah,
as my phone is always plugged in at my work pc or home pc or laptop or whatever this works out good
TUT:
use at your own risk this is for information purposes only and I hold no responsibility to any damage that may arise
using a micro usb cable (charging cable for htc phones)
cut it using a pliers half way through the cable
using pliers again cut away the thick black wiring, the red and black small wiring, and white and green wiring
from the usb port end to the microusb connect the black and red cables together so they join
from the microusb end short out the white and green cables together
from the usb port end leave the white and green cables, do not touch these
use insulation tape/solder to clean it up and then your cable is ready
I will make a mod for car chargers also soon
see attached image showing which wires to cut and which to join up and which to leave alone, if this helped you in anyway (it should help you ) then please hit the thanks button
this mod will trick your pc/laptop/htc into thinking that it is not a pc usb cable and will allow higher currents and voltage to your phone
you can check this with current widget from market place
once this mod is done, you cannot use the same cable again for pc/usb tethering or usb disk drive, only cable can be used for charging
Care to explain how you did it? I got a spare Micro USB cable willing to try and make a tutorial with pictures.
So you forgot to put the directions for the mod...
Sent from my Sensation 4g using XDA App
directions are up with a picture
Seems awesome, but I'd be way too scared to try that on my own. >.<
First of all im not against this mod. Just want to share my experience just this morning.
I charge my phone via the stock usb cable to my pc and leave until morning approx 7hrs. What happen now my phone Menu button become unresponsive tried different method, shake google for answer , but nothing work. Worst come to worse i may return the phone to HTC for repair. So for anyone want to try this be careful, this could be a problem with HTC as it could result more problem.
HTH
Sounds dangerous and a bit risky. Why not just use a USB y cable and a micro USB adapter?
http://item.mobileweb.ebay.com.au/viewitem?itemId=370586078337
Its not dangerous nor risky in my opinion...
I am using this trick since I owned HTC TYTN2 and I`m using it now.
Hmmm...
I always thought the different voltages came from the charging adaptor..
The phone adaptors have normal charging voltages so thats why charge normal speed... however PCs have lesser voltage due to USB ports. I think the PC voltage varies on the device that's plugged in.
Thus, we can use the same cable for charging with an adaptor and also for data transfer and the phone knows what its plugged into.
Pardon me if i'm wrong... could be a misconception i had
Why go to that bother when you can just plug in the adaptor!
Sent from my Sensation using Tapatalk
thunderskain said:
Hmmm...
I always thought the different voltages came from the charging adaptor..
The phone adaptors have normal charging voltages so thats why charge normal speed... however PCs have lesser voltage due to USB ports. I think the PC voltage varies on the device that's plugged in.
Thus, we can use the same cable for charging with an adaptor and also for data transfer and the phone knows what its plugged into.
Pardon me if i'm wrong... could be a misconception i had
Click to expand...
Click to collapse
It's got nothing to do with the voltages, they are the same. The phone senses that the data wires are not connected together (open) and presumes that it is plugged into a pc / laptop usb port. Because of this the phone then restricts the current it draws from it's source so that it doesn't cause damage to the pc / laptop usb power supply.
Inside the phone charger the data connections will be shorted out so the phone knows it's the charger and can draw full current.
There is a chance that it could damage the pc / laptop if the usb port supply is not rated high enough
Just to update the thread, I've been using this for the last year and a half on all the HTC's I own and no issue at all,
I can connect my phone to my laptop if i dont have access to mains
I can use the cable in the car to a usb charger (which charge slow for some reason)
there are many reasons i.e. in work where I can only use a usb port and no extra plugs for a/c, it means I don't have to carry a plug around with me just a usb cable,
A good post, the issues around drawing to much power could effect older laptops
If I understand correctlly USB3 has the ability to supply more power than USB 2
Anyone any idea if this would reduce charge times without the mod?
battery will die soon enough...
you should place a 220 Ohm resistor between the data lines (green and white) if you do that, you will be able to use the where it was intended for, data
with the 200~220 Ohm resistor the phone recognizes the connection as AC-charger. i dit this with a DealExtreme carcharger
source: http://www.ifixit.com/Guide/Upgradi...-current-to-HTC-Hero-and-other-devices/5172/1
If you can get to the ID-pin of the USB-connector (pin4) and connect the following resistors to GND, you get interesting USB modes
Dock-mode = 44-49 kOhms
Car-dock = 5-16 kOhms
source: http://forum.xda-developers.com/showthread.php?t=1185431
I've done this, and soldered all the cables in the right positions, now I'm testing the charge times between this and a normal usb cable on my HTC G1.
First thing I noticed was that my phone says charging via AC, instead of usb.
Will edit this with the results.
Edit : Been a while, forgot about this, so I forget the exact numbers, but my phone charged around 1 and half hours faster with this mod, and yes, it was on USB 3.0 so its quite good.
Worthless to try if you don't have USB 3.0.
Sent from my GT-I9100 using xda premium
Does this mod increase charge with main AC lead that output 2A e.g. Ipad charger head???
usb3 provides up to 900ma
so usb3 should work without any problems
this is usb specification
http://www.usr.com/education/peripherals0.asp
by default usb2 provides 500ma unless it is asked for more by the device, this is where the mod of the cable comes into play, it provides up to 1000ma with this mod
johnerz said:
If I understand correctlly USB3 has the ability to supply more power than USB 2
Anyone any idea if this would reduce charge times without the mod?
Click to expand...
Click to collapse
I have an Notebook with USB3.0 and also Power-USB. (Power usb only works with a dockingstation).
The charging is also bad. Takes about ~4 hours from 2% - 100%.
I thought about power reducement by phone, when dataconnection is available. Now I know it for sure :-/