I already have a brodit active car dock for the Note 1. I modified it one year ago to start the car dock mode using a 619k resistor between pin 4 and 5. (http://forum.xda-developers.com/showthread.php?t=820275)
Now I tried the Note 2 but nothing happend. No car dock-mode and no charging!
When I removed the 619k resistor the Note 2 is charging, but of course no car dock mode.
Okay, a solution with NFC is possible, but I want to try it with a resistor first. Any ideas?
Does your charger support 2A output? My theory is that with the resistor the note tries to load at full speed requesting a high charging current. Your charger can not keep up and voltage drops below 5 V which will stop the charging.
Yes, my charger has 2A. And I tried it with the original Note2-charger (230V).
Frank2 said:
Yes, my charger has 2A. And I tried it with the original Note2-charger (230V).
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Car Dock mode may be broken in Jelly Bean with the note2, as it in the galaxy s3 official jelly bean releases..
Related
http://www.expansys-usa.com/d.aspx?i=148251
Charges both at same time.
Sweet. I may get one of these.
Do you know how much amps it's delivering? The Athena needs at least 2A to show any sign of being charged!!! I'm suspecting it's only delivering 500mA which is the max amount of amps a Jabra headset can take without frying itself. 500mA is just enough to light up the amber charging light on the Athena and nothing else.
sumtingwong said:
Do you know how much amps it's delivering? The Athena needs at least 2A to show any sign of being charged!!! I'm suspecting it's only delivering 500mA which is the max amount of amps a Jabra headset can take without frying itself. 500mA is just enough to light up the amber charging light on the Athena and nothing else.
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I always thought that a regular HTC charger provided 1A. Do you use a 2A charger?
According to Expansys and PP Techs this should at least give more than 500mA:
The majority of new devices are equipped with two different charging modes: a sync-n-charge mode through a computer USB port (slow charge) and a regular charge mode through an AC/DC adapter or any other charging accessory (fast charge). Those two charge settings require two completely different pinouts and are not compatible with each other.
In select devices, this incompatibility would mean that a sync-and-charge cable for your device, when connected to an AC/DC adapter or similarcharging accessories, will not be properly configured to charge your device.
Our new Lil Sync® Duo Adapter is the convenient solution to this common charging problem. Using our adapter will forces your Sprint PPC-6700 to use the most effective, “fast-charge” mode when plugged into AC/DC power. Additionally, there is a Jabra 8 pin companion port tailed onto the adapter. This allows you to conveniently charge a second accessory such as a Jabra headset simultaneously.
In some cases, your Sprint PPC-6700 will not charge from an AC/DC adapter or other charging accessory when the battery life is below 30 percent. Our Lil Sync® Duo Adapter will charge your Sprint PPC-6700 from a completely drained battery.
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Looks like an interesting little accessory.
Yes. I am using a 2A charger both at home and in my car. The one I'm using is the TomTom USB Charger for Go/One/OneXL/XL. Attached are the pictures of the car charger. The home charger provides the same amp. If you're in the US, the car charger is sold at Target for $19.99. The car charger is bent at an angle but the home charger is not. If your car doesn't have bluetooth and you have to use the audio jack on your athena, then you'll need a mini USB angle adapter to reposition the cable upward. The mini USB angle adapter comes standard with the old Motorola Razr V3 so if you already have one of those phones, you don't have to buy a new adapter. Otherwise, the Motorola mini USB angle adapter is sold for a few bucks where Motorola phones are sold.
What are the specifications of the official HTC chargers ?
I mean not the voltage/amp, but the way the phone identifies that it is its genuine charger and it can draw max power (ie. up to 1A).
Since normally with a real dumb charger via usb it should not draw more than 100mA (or maybe 500mA but even that would not be USB specification compliant without a proper USB negociation).
I guess this is something like 2 pins shorted on the charger cable ? (or some phones use a specific resistance between 2 plugs as identification)
If I want to charge at max current with a usb car charger, what can I do (short pins) ? And what will be the max current it will try to draw ?
The charger and usb cable provided with my Magic both have standard shaped mini usb plug. Though my collegue's HTC Dream came with HTC shaped mini usb plug. Is there any difference exept in the shape of the plug ?
Current drain
Hi
I have charged my sapphire with a power statin and it indicates about 800 mA of maximum current drain.
I made the charging wire myself from a broken charger so i think you can use any car charger.
The htc shaped mini usb is only to indicate it has charging wires and audio wires.
sportster said:
I made the charging wire myself from a broken charger so i think you can use any car charger.
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Yes you should ba able to, I'm using a Blackberry charge for mine.
Clinton
I have an old usb cigarette charger - output is 5.5V 500mA. Will this be okay to use with X1 or should I buy an official one?
My 650mAmp charger does it well enough, yours will probably too.
it is the same voltage as usb port so it should work
5.5V or 5.0V?
I use the blackberry lighter charger, 5.0 v 1A
Is it OK ???
I think I got the answer http://forum.xda-developers.com/archive/index.php/t-505222.html
volts is the only thing that matters amps are drawn and a device will draw as much as it's made to be able to the more it can draw the faster it can charge
usb is spc'd to be 5volts but would think that 5.5volt would not cause problems but
once I gave my ext usb hub 12volts and it killed it and many of the devices connected to it
So, using a 5V 500mA just to keep my X1 alive while navigating should be no problem, right? I hardly believe it'll need more.
I use the car charger from my navigation pocket loox by Fujitsu Siemens.
This works great with output 5 V 1 A.
The original charger for home has only just output 5 V and 700 mA.
i never use my sony charger because its not charging properly
i always use motorola charging because its micro usb charger the same as X1. no problem so far
So this is my first motorola and I had heard of the issues they have with non motorola chargers. Now I am experiencing it first hand. With the same ac charger I have charged many phones with and is capable of 1 amp output (D4 charger is only rated at 850 mA) my D4 struggles. With the device off it charged painfully slowly. While on it cannot even charge. It discharges while plugged in despite the charging indicator and reporting "charging (AC)" in status.
How does it know it is not a moto charger? Is it just about the resistance between the data pins? For most other phones shorting the data pins on the charger indicates to the phone that it is a high current charger and not a computer USB port. Is there a similar trick for motorola phones? I would rather not have to purchase an overpriced moto oem car charger. I have a perfectly fine 1.2 amp car charger soldered directly into my car's 12v system behind the dash. Can I make it work?
Thanks!
On a regular basis I successfully charge my D4 using both a charger from a Samsung Reality feature phone and from a B&N Nook Simple Touch, in addition to the one that came with it. I've also used a variety of car chargers.
Sent from my DROID4 using XDA
Actually, so far I have only one charger that had any trouble charging the phone (it was a $3 charger with 2 USB ports), but the $3 charger with ONE USB port works fine, as does the Nook Color charger, Blackberry charger, and Samsung charger I have tried it with, as well as both my old car charger and Lenovo's always-on charging port on their laptops.
JKingDev said:
So this is my first motorola and I had heard of the issues they have with non motorola chargers. Now I am experiencing it first hand. With the same ac charger I have charged many phones with and is capable of 1 amp output (D4 charger is only rated at 850 mA) my D4 struggles. With the device off it charged painfully slowly. While on it cannot even charge. It discharges while plugged in despite the charging indicator and reporting "charging (AC)" in status.
How does it know it is not a moto charger? Is it just about the resistance between the data pins? For most other phones shorting the data pins on the charger indicates to the phone that it is a high current charger and not a computer USB port. Is there a similar trick for motorola phones? I would rather not have to purchase an overpriced moto oem car charger. I have a perfectly fine 1.2 amp car charger soldered directly into my car's 12v system behind the dash. Can I make it work?
Thanks!
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Click to collapse
Not sure how it knows one way or the other. I've successfully used a few LG chargers to charge my D4. The only really hickup I've ran into is the usb cables from those lg chargers won't sync data to the phones when plugged into a computer, they'll still charge off the usb port but won't read as a usb connection to the computer.
Heh, captcha is trynply.
Every charger I've used, including an old charger for an EN-V, kindle, supplied, and various other phone chargers works just fine with this phone. Probably have a bad charger, guy.
Thanks for the replies. I guess I was wrong. My modded car charger works just fine. I guess its just time to retire the old charger that I have been using. I think it might be my old nexus one charger.
A more important question would be does the thing charge over computer-bound USB ports?
When you're without a charger, but there's a USB cable that fits your phone, sometimes a regular USB data port is the only that is around... even though it might take a really long time.
Try a computer bound USB port, then try your actual charger, again. Or do the hard reset (vol down plus power, hold until it actually does it), which is just like pulling the battery.
See how that goes.
Chris
RueTheDayTrebek said:
A more important question would be does the thing charge over computer-bound USB ports?
When you're without a charger, but there's a USB cable that fits your phone, sometimes a regular USB data port is the only that is around... even though it might take a really long time.
Try a computer bound USB port, then try your actual charger, again. Or do the hard reset (vol down plus power, hold until it actually does it), which is just like pulling the battery.
See how that goes.
Chris
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It does in fact charge via USB port. In fact, it has a 'charge only' mode. Depending on how much juice your port puts out, and what you are doing with the phone, it will charge slowly/not at all, though.
from my experiences, the droid 4 will not accept lg microusb cables, the charging bricks work tho. i use a blackberry microusb on mine along with a Logitech and the stock moto ones. 1.2 amps is a bit high but not crazy sounding. personally, I charge at 1 amp.
I am using the Waze app when driving and I always notice that the battery level starts to decrease over time even though the phone is connected to a 2.1A car charger.
Therefore, I decided to connect an amp meter to the charger and measure the current draw:
2.1A car charger - USB input - current draw: 0.8A to 1A with the screen on and Waze running with GPS on
1.5A Sony mains charger - USB input - current draw same as above
This means that the phone does not draw enough current to keep the battery charged. OS problem ?
I tested even the dock charger and I got a very different result:
1.8A dock charger - Dock charger side pads - current draw 1.4A with the screen on.
Why the sudden increase in current when using the dock charger ? Is there a fast charge mode for the Xperia Z ?
Nobody knows nothing ?
screamer2703 said:
I am using the Waze app when driving and I always notice that the battery level starts to decrease over time even though the phone is connected to a 2.1A car charger.
Therefore, I decided to connect an amp meter to the charger and measure the current draw:
2.1A car charger - USB input - current draw: 0.8A to 1A with the screen on and Waze running with GPS on
1.5A Sony mains charger - USB input - current draw same as above
This means that the phone does not draw enough current to keep the battery charged. OS problem ?
I tested even the dock charger and I got a very different result:
1.8A dock charger - Dock charger side pads - current draw 1.4A with the screen on.
Why the sudden increase in current when using the dock charger ? Is there a fast charge mode for the Xperia Z ?
Click to expand...
Click to collapse
I think its more of a hardware issue.
Some connector pin on pcb might be acting up.
Hit thanks if helped :good: