Database Users

USB/AC detection?

Hi,
I saw while using Tbattery 0.56 that when I plug the original AC charger that the S/W (Kaiser) detects it and therefore he pulls more current from the charger.
When I use USB cable, its detects "USB" and takes less current.
now for my question, I have a AC charger from Parrot and when I'm connecting it the device acknowledge it as a "USB" not "AC charger".
Does anyone know if there is an Hardware pin in the mini USB that notify the kaiser wether its USB or AC charger ?
Regards
Nir

Hi Nir
I don't have a Kaiser, but on my prophet I've had quite the same problem.
The USB / AC difference is about the current...
On my USB charger (able to charge any USB device), the current is 0.5A
On my AC charger, provided with my prophet, the current is 1A.
As a result, when my battery is completely drained, i'm unable to charge the device via a simple USB charger. I've got to give a kickstart using the AC charger.
Hope this helps.
David

I have diamond. same 'problem' (or more of a protection from current overdraw) here.
Actually the original ac adaptor shorted the USB data+ and data-
So you'll have to modify your 3rd party USB charger by connecting the center 2 pin of usb jack. you shouldnt do this on pc or laptop as this will render usb connection useless if it doesnt fry your devices.
Do it on your own risk!!

ohms law state
amp == volt / resistence
usb is spc'd volt == 5
max amp == 0.5
AC have a much higher max amp limit then usb
so the internet resistence of the pda set the pace
and it can it seems draw a lot more then usb is spc'd to
so it's not something the device actively does it just
try to draw as many amps as it's spc'd to
resulting in ac charger charging faster then usb

[Q] Charging TAB from a PC USB or USB Hub

I setup a self-powered USB2.0 hub which has a 2.5AMP power adapter. I used a dual male (split) to single female USB cable and plugged the TAB USB cable into that.
This same dual cable & hub works fine to power an external USB hard-drive which won't work with just a single cable for power. I would think with 2+ AMPS it should charge the TAB "normally" (with no "x" on the battery indicator) but it does not, the "x" remains. All other devices have been removed from the hub.
Anyone else been able to get a normal charge off a PC or USB hub with a split cable? It's such a pain to have to put the TAB on the wall charger then switch it back to the PC.

when the screen is off the device charges, despite what the battery display says.

tca120 said:
when the screen is off the device charges, despite what the battery display says.
Click to expand...
Click to collapse
Correction, it trickle charges. Very slowly.

LordLugard said:
Correction, it trickle charges. Very slowly.
Click to expand...
Click to collapse
I understand that but I was under the obviously incorrect impression that if you used a double male USB to single female USB cable you would get a normal charge since there is more power available. Is the charge rate dependent on the TAB seeing power on a specific pin of the cable telling it that a charger is connected and not a cable to the PC? I'm connected to a self-powered hub with a big 2.5amp power supply and nothing else connected to it.

Car Charger?

Does anyone have a confirmed working car charger for this phone?
My motorola car charger that I used for my GNex and GS3 isn't fully compatible with the G2. I get a message saying "slow charging" when I plug it in.
What do you guys use to achieve full charging speeds?
I realize there's a Q&A forum, but since this is directly related to accessories, I wasn't sure if it was better suited for this forum.

Nobody has a working car charger?

Both of these work for me.
http://www.amazon.com/gp/product/B0042B9U8Q/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B006SU0SX0/ref=oh_details_o03_s00_i01?ie=UTF8&psc=1
the powerjolt is much more low profile though

That's just a generic list. The G2 requires a hi power charger
jeff_warner said:
Hi check out this collection of car charger for LG G2...they all are compatible with LG G2 and wont create any issue of slow charging and all...you can avail any of them for free shipping too...
Thanks !!!!
Click to expand...
Click to collapse
Sent from Bad Azz VZW LG G2 Cyan Tapatalk

beddachedda said:
Both of these work for me.
http://www.amazon.com/gp/product/B0042B9U8Q/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B006SU0SX0/ref=oh_details_o03_s00_i01?ie=UTF8&psc=1
the powerjolt is much more low profile though
Click to expand...
Click to collapse
The powergen dual port works great. It has two 2.1amp USB ports, one that works with Android, and the other with Apple products (when using a data cable --> detecting USB vs AC charge mode). I have custom USB cables where I shorted the data pins so I always pull at AC charge rates regardless of the port type. In any event, this charger should provide you with the same capability as the OEM wall charger.

I have a 2amp car charger and it works fine, no message about slow charging.

the issue im runnin into is find a usb cable that enables fast charging
i have a dual usb car charger that put out 2amps per usb but cant.find an aftermarket usb to micro that can support more amps (fast chargin)
the oem lg g2 cable works...as well as the nexus 7 cable
i got this cable but doesnt charge more than 1amp
http://www.amazon.com/gp/aw/d/B004G...c=1&redirect=true&ref_=oh_details_o01_s00_i02
---------- Post added at 10:01 AM ---------- Previous post was at 09:54 AM ----------
kyler13 said:
The powergen dual port works great. It has two 2.1amp USB ports, one that works with Android, and the other with Apple products (when using a data cable --> detecting USB vs AC charge mode). I have custom USB cables where I shorted the data pins so I always pull at AC charge rates regardless of the port type. In any event, this charger should provide you with the same capability as the OEM wall charger.
Click to expand...
Click to collapse
how do u short the data pins?

nitric13 said:
the issue im runnin into is find a usb cable that enables fast charging
i have a dual usb car charger that put out 2amps per usb but cant.find an aftermarket usb to micro that can support more amps (fast chargin)
the oem lg g2 cable works...as well as the nexus 7 cable
i got this cable but doesnt charge more than 1amp
http://www.amazon.com/gp/aw/d/B004G...c=1&redirect=true&ref_=oh_details_o01_s00_i02
---------- Post added at 10:01 AM ---------- Previous post was at 09:54 AM ----------
how do u short the data pins?
Click to expand...
Click to collapse
To short the data pins, I actually cut a USB cable, stripped back the insulator, re-soldered the +5V and ground wires, soldered together the data pins on the microUSB side of the cable, and stagger cut the data wires on the other side. Prior to the re-soldering, I slipped some shrink tubing on one end of the cable to re-insulate everything. Not for the faint of heart.
Background for those that don't know... Typically, Android phones look for little to no resistance on the data pins to detect a high current charger. Any other load triggers USB mode since most PC's are only designed to supply 500mA via USB. I assume this is a safety issue to prevent overdrawing a PC's port. Apple operates differently. They look for some nominal resistance as USB and switch to fast charge under open or some higher resistance. Most chargers >500mA are designed for the iPhone market unless they explicitly state other compatibility. Therefore, the data pins are floating. Any charger can be used at its max rating if you trick the Android phone with the homemade cable described above. Of course, then it becomes a power-only cable, useless for data. Clearly, OEM chargers for Android phones short the data pins internally so your OEM cable can be used with a wall charger (fast) or with your PC for data connections and nominal (slow) charging.
So the powergen mentioned above has two 2.1A ports, one labeled NA (non-apple) and A (apple) so you don't need to worry about mix-n-match devices and cables. Any USB cable will fast charge on the appropriate port. With my homemade cable above, my Galaxy Nexus will fast charge on either port.
Fast forward to the G2... Just got it yesterday and while in the car, I noticed my homemade cable only permitted SLOW charge on either port. Huh. Kinda a head scratcher. I ran in the house and got the OEM LG cable and both ports worked with FAST charge. So I tried one more thing, I grabbed a regular USB cable and observed the following: the phone went into FAST charge on the apple port and SLOW charge on the non-apple port. I can only assume that LG is detecting fast charge in a different way. The fact that a standard USB cable doesn't work with the data pins shorted at the charger but the OEM cable does makes me think there is something about LG's cable that allows it to pull max power from the charger. FYI, I plugged the OEM LG cable into a 850mA Motorola AC charger and it registered as SLOW charge.

kyler13 said:
To short the data pins, I actually cut a USB cable, stripped back the insulator, re-soldered the +5V and ground wires, soldered together the data pins on the microUSB side of the cable, and stagger cut the data wires on the other side. Prior to the re-soldering, I slipped some shrink tubing on one end of the cable to re-insulate everything. Not for the faint of heart.
Background for those that don't know... Typically, Android phones look for little to no resistance on the data pins to detect a high current charger. Any other load triggers USB mode since most PC's are only designed to supply 500mA via USB. I assume this is a safety issue to prevent overdrawing a PC's port. Apple operates differently. They look for some nominal resistance as USB and switch to fast charge under open or some higher resistance. Most chargers >500mA are designed for the iPhone market unless they explicitly state other compatibility. Therefore, the data pins are floating. Any charger can be used at its max rating if you trick the Android phone with the homemade cable described above. Of course, then it becomes a power-only cable, useless for data. Clearly, OEM chargers for Android phones short the data pins internally so your OEM cable can be used with a wall charger (fast) or with your PC for data connections and nominal (slow) charging.
So the powergen mentioned above has two 2.1A ports, one labeled NA (non-apple) and A (apple) so you don't need to worry about mix-n-match devices and cables. Any USB cable will fast charge on the appropriate port. With my homemade cable above, my Galaxy Nexus will fast charge on either port.
Fast forward to the G2... Just got it yesterday and while in the car, I noticed my homemade cable only permitted SLOW charge on either port. Huh. Kinda a head scratcher. I ran in the house and got the OEM LG cable and both ports worked with FAST charge. So I tried one more thing, I grabbed a regular USB cable and observed the following: the phone went into FAST charge on the apple port and SLOW charge on the non-apple port. I can only assume that LG is detecting fast charge in a different way. The fact that a standard USB cable doesn't work with the data pins shorted at the charger but the OEM cable does makes me think there is something about LG's cable that allows it to pull max power from the charger. FYI, I plugged the OEM LG cable into a 850mA Motorola AC charger and it registered as SLOW charge.
Click to expand...
Click to collapse
I have pretty much the same thing, had a cable that would only do slow charge, so I stripped the wires back, and on the micro usb side I cut the green and white(data) and twisted them together. Now its fast charge no matter what charger I plug this cable into.... not sure why urs isn't....

My AT&T branded charger doesn't give me the slow charge notification.
Sent from my LG-D800 using Tapatalk 4

droidiac13 said:
My AT&T branded charger doesn't give me the slow charge notification.
Sent from my LG-D800 using Tapatalk 4
Click to expand...
Click to collapse
Yes, but its not a 2 amp charger. We want a bigger fast charge vehicle charger...

I tried the USB plug in my car (Scion 2012) and two different Belkin cigarette/USB chargers today. The USB and one of the Belkins gave slow charging. The other Belkin did not -- worked fine. They were supposed to be identical, but I had suspected one was a fake. Guess I was right.

I just use the usb cable that came with their phone and plug it into my auto usb or the car's 110 outlet.
Sent from my VS980 4G using Tapatalk 4

Tylt. Flat ribbon charger works.
Sent from Bad Azz VZW LG G2 Cyan Tapatalk

USB 3.0 Charging

The Note 3 is the first phone to come with USB 3.0 support, the cable and connector are up to spec.
What I'm wondering if this helps with the charging speed, as the wall charger doesn't seem to be with a USB 3.0 connector.
Does anyone have any insight to this?
Sent from my SM-N9005 using Tapatalk

The wall charger has a 2Ah power output while a pc usb 3.0 port has a maximum output of 900mAh. If you use an USB 2.0 port it's only 500mAh.
The best way to recharge the Note 3 is to use the wall charger.

s1m4an said:
The Note 3 is the first phone to come with USB 3.0 support, the cable and connector are up to spec.
What I'm wondering if this helps with the charging speed, as the wall charger doesn't seem to be with a USB 3.0 connector.
Does anyone have any insight to this?
Click to expand...
Click to collapse
From a dedicated charger the final charging current is normally determined by the PHONE + CHARGER based on how the phone "recognizes" the charger as good/bad (and what battery level you already have + how warm the battery is) and how much power the charger can provide. I believe the max that I have seen on my Note 3 was 1800 mA (which worked with both USB3 cables but also with some good USB2 cables).
From a PC the charging current is the result of a more complex negotiation, the phone can still have "the last word" but it can not go over 500 mA on USB2 or 900 mA on USB3.
Somehow related - please note that on USB3 DATA you STILL need to MANUALLY enable USB3 mode EVERY TIME YOU PLUG TO THE PC. Even if enabled the mode will be reset to USB2 in 10 minutes and lost if you remove and plug-in again. That being said on my Thinkpad I have not seen it charging over 450 mA even when on USB3 under Win7 (but the speed difference exists, so USB3 is correctly triggered).
Also please note that the life of the battery can be heavily influenced by the charging current - the smaller the charging current the more cycles the battery will last on the very long term. Also high temperatures are pretty bad for the battery. So if you are in no hurry it is always better to charge with a small USB2 current that is guaranteed to not go over 500 mA.

Maybe I wasn't clear enough, I'm wondering if the wall charger is utilizing the USB 3.0 capability, and if there's any advantage of using the USB 3 cable over a regular micro USB cable.
Sent from my SM-N9005 using Tapatalk

No, there is not. The Note 3 has a USB 3.0 port, but it is only faster for data transfer. Charging is done at 2.0 speed, not 3.0. Regardless of what you attach it to, it charges just as fast as a 2.0 device.

TheBeast1981 said:
The wall charger has a 2Ah power output while a pc usb 3.0 port has a maximum output of 900mAh. If you use an USB 2.0 port it's only 500mAh.
The best way to recharge the Note 3 is to use the wall charger.
Click to expand...
Click to collapse
What if you used a USB 2.0 cable with the 2Ah AC adapter? Would it still charge in "USB 3.0" mode and not give you a message to use a USB 3.0 cable?
I have my old 1Ah car charger and when I use a USB 2.0 cable, the phone says to use the USB 3.0 cable for faster charging.
But, looking at this pinout:
http://commons.wikimedia.org/wiki/File:USB_3.0_Micro_B_plug.PNG
It seems like only the USB 2.0 section is providing the power?
It's utterly confusing. Would be nice if someone who really knows this stuff explain how it works?
---------- Post added at 09:58 AM ---------- Previous post was at 09:56 AM ----------
ShadowLea said:
No, there is not. The Note 3 has a USB 3.0 port, but it is only faster for data transfer. Charging is done at 2.0 speed, not 3.0. Regardless of what you attach it to, it charges just as fast as a 2.0 device.
Click to expand...
Click to collapse
What's strange is that I have a car charger that is 1.0Ah. When I use a USB 2.0 cable, the phone tells me to use a USB 3.0 cable for faster charging.
When I use a USB 3.0 cable, the message does not appear.
But I'm thinking that the car charger can only put out 1.0Ah regardless of the cable that is used?

Dash Charge Cable

How does USB cable influences charge of speed? Why DASH speed charging works with the red USB cable provided by manufacturer, but not my other USB3 cables?
Does the cable have to be some some special kind, i.e. sort of certification or whatever? I would really like to use longer (i.e. 1.5 - 2 metres) cable from my charger, but all the cables I have and tried, plugged into official charger, does not support fast charge.
Thanks for answers!

vector88 said:
How does USB cable influences charge of speed? Why DASH speed charging works with the red USB cable provided by manufacturer, but not my other USB3 cables?
Does the cable have to be some some special kind, i.e. sort of certification or whatever? I would really like to use longer (i.e. 1.5 - 2 metres) cable from my charger, but all the cables I have and tried, plugged into official charger, does not support fast charge.
Thanks for answers!
Click to expand...
Click to collapse
That is mostly cause of a resistance between the wires which voltage drop indicates its a cable that meets the requirements. That is the common practice for such proprietary accessories.
Maybe someone has time to measure this and/or cut his original cable and find the resistor, I need mine
I'm sure it's that method.

vector88 said:
How does USB cable influences charge of speed? Why DASH speed charging works with the red USB cable provided by manufacturer, but not my other USB3 cables?
Does the cable have to be some some special kind, i.e. sort of certification or whatever? I would really like to use longer (i.e. 1.5 - 2 metres) cable from my charger, but all the cables I have and tried, plugged into official charger, does not support fast charge.
Thanks for answers!
Click to expand...
Click to collapse
You can buy a third party one cheaply from ali express. They work like the proprietary ones and there's also a 1.5m option. I personally haven't found any drops in charging speed at all.

Look in the USB-A side of the cable, there is an extra pin above the 4 normal USB pins which signals dash charging.

skanadian said:
Look in the USB-A side of the cable, there is an extra pin above the 4 normal USB pins which signals dash charging.
Click to expand...
Click to collapse
Yeah, that can be the reason!