Database Develop

Car Charger Question

Ok, so I took my Inc on it's first run yesterday as a full-time GPS. It sat in the Verizon dock, plugged into my Griffin dual-port USB cig. lighter adapter.
It made the entire 3.5 hour trip, but when I got there, and removed the phone from the charger, it was at 9%. It had started at 100%. So, obviously, the 5V .5A that the Griffin outputs is not enough to run the GPS and at least maintain charge.
Does anyone know where to get a 5V 1A car charger? Unfortunately, most manufacturers don't even list the amperage output of their devices either online, or even on the packaging!
Thanks,
Doc

DocTauri said:
Ok, so I took my Inc on it's first run yesterday as a full-time GPS. It sat in the Verizon dock, plugged into my Griffin dual-port USB cig. lighter adapter.
It made the entire 3.5 hour trip, but when I got there, and removed the phone from the charger, it was at 9%. It had started at 100%. So, obviously, the 5V .5A that the Griffin outputs is not enough to run the GPS and at least maintain charge.
Does anyone know where to get a 5V 1A car charger? Unfortunately, most manufacturers don't even list the amperage output of their devices either online, or even on the packaging!
Thanks,
Doc
Click to expand...
Click to collapse
sounds like you might be best off with a power inverter and a wall adapter. or you could buy a car that has a 2 prong outlet in it like mine

Teksu said:
sounds like you might be best off with a power inverter and a wall adapter. or you could buy a car that has a 2 prong outlet in it like mine
Click to expand...
Click to collapse
As an EE that's really inefficient. Belkin USB Micro Charger does 5V @ 1A max. It's marketed as an iPhone/iPod car charger but it does work for the Incredible since it doesn't have any fancy charger lockouts. There is also a 2 output version with a 1A and 500mA plug.

Using HD charger to charge HD2?

Hi,
I just bought a used HD2 without a charger. Seller told me the charger was not working and gave me only the USB cable. I am wondering if I can use my HD charger to charge the HD2. Of course, by swapping the cable.....
Anyone with a HD2 please post the part number/model number of their original HTC HD2 Charger so that I can check whether it is the same thing? Thanks all.....

Oh....Just downloaded a copy of the usual manual for HD2. It stated the original adaptor for HD2 is TC-P300 which is exactly the same as my HD's adaptor. So they are interchangable by swapping the USB cables!

its also the same as my brothers diamond charger
normally, you can use every usb charger.
if it doesnt work with your leo, it won't charge, but nothing should happen to your device.
DN41

Yup, it is exactly the same charger. (5 Volt 1Amp )
Same situation, changed from an HD to a HD2.

That's good! That mean any of those car cigarette lighter plug with USB output can be used with the appropriate USB cable to charge our HTC phone in the car? Don't need to buy the original car charger from HTC?

you can also charge your ipod with your hd2 chargers adapter.just connect the ipods' usb cable to the charger and plug in

applefruit said:
That's good! That mean any of those car cigarette lighter plug with USB output can be used with the appropriate USB cable to charge our HTC phone in the car? Don't need to buy the original car charger from HTC?
Click to expand...
Click to collapse
i would say about 99,9% does it. maybe there are 1 or 2 out there, which dont work. but normally, all of them should work.
DN41

Yup, but check Tbattery. I have this tool in NRG rom and it shows you how much current goes, or comes, from your battery.
From what I believe is that there are 2 states and 2 modes.
The mode is actually the source to where your HD2 is connected to. This is either a standard USB port on your laptop or the other one a charger.
If it is connected to the standard USB port it will draw a max of 500mA which is the max a USB should be able to deliver.
The charger can provide 1 Amp which is 1000mA, which means half the charge time till full.
You have to know that there are actually 4 conductors on the 'big' USB connector. Ground, 5 Volt and D+ and D- (the actual data).
The HD2 knows that it is connected to the charger when D+ and D- are connected to eachother. (no harm done btw)
Now some carchargers can deliver 1 Amp but they don't have the D's shorted and the HD2 only pulls 500mA from it since it doesn't see it as a 'HTC' charger.
The state is determined on the batt's %
If it is below 90% I believe it charges at full Amps (depending on the mode) above it goes in slow charge.

Looks like nowaday, we just need an adaptor with a USB output and various USB cables to charge different phones. Not too long ago, we need to carry one charger for each phone. haha....
Thanks for all those who replied!

I use a Nokia N97 car charger and it works very well. I'm guessing a normal N97 power adapter could work as well to charge your HD2.

info & caution.
Any USB port should be able to charge your HD2 & micro USB is the new standard charging specification, so it should become really common over time.
However, be careful what else you plug in! I bought a 3.2mm to micro USB adapter. It was fine on a standard Nokia charger (which delivered about 4.5 volts), but another one which put out about 7 volts, blew my poor HD2 up :-(
I got it repaired though. They replaced the main board = new IMEI etc, which would have been expensive out of warranty! Lucky me, but being without my HD2 was kinda hell!

I have checked the voltage out of that car charger. A friend of mine tested it before too on his HD2. N97 has a bigger voltage battery (1500 mA). He had problems finding a decent car charger for his HD2. He eventually bought 2 non-original chargers for an N97 and HD2. He took the connector from the non-original HD2 car charger, he cut off the connector for the N97 and he put the HD2 connector (he is an electrician, do not try this if you don't know what you are doing). He advised me to buy an original N97 charger that should work. I did buy one original car charger and I am satisfied with it. My HD2 is still in one piece without any service calls. I am saying that a N97 car charger should work just fine on an HD2.

Sam2k said:
Any USB port should be able to charge your HD2 & micro USB is the new standard charging specification, so it should become really common over time.
However, be careful what else you plug in! I bought a 3.2mm to micro USB adapter. It was fine on a standard Nokia charger (which delivered about 4.5 volts), but another one which put out about 7 volts, blew my poor HD2 up :-(
I got it repaired though. They replaced the main board = new IMEI etc, which would have been expensive out of warranty! Lucky me, but being without my HD2 was kinda hell!
Click to expand...
Click to collapse
This might have happened to me? It would not charge with my 500 ma USB supplies (computer nor the AC USB power adapter. Nor would it charge with my AC USB power adapter of 1 amp.
So I used my HTC HD2 car charger, plugged into my AC-12 volt car charger outlet, and it charged ok.
Two weeks later, nothing. So waiting for an external HTC HD2 battery charger from an eBay supplier. Tried different HTC HD2 batteries & HTC HD2 USB cables. No luck yet.

[Q] Car charger 1000mah

Hi everybody, I am looking for a car charger for my HD2. I would like to ask if you think that a 1000mah one would damage the phone?
I have found some on eBay and I was considering buying it.
Please let me know what you think.

The standard mains power adaptor that comes with the phone is 1000mA so no it won't damage it.
Even a 5000mA won't, the phone will draw as much current as it needs.

Thanks for the reply, I was thinking of buying the charger and a car mount, so that I have my GPS needs for this years vacation, but I already had bad experience with a car charger that was not able to charge my wife's HTC Diamond when using GPS, that is why I want to buy a good one.

Try these: They work perfectly for me. The charger is a Motorola original charger.
http://forum.xda-developers.com/showthread.php?t=1130487

I use an original Nokia N97 car charger and I never had any problems. I suggest you do the same, they are a little more expensive than the other ones, but a car charger has to be able to give enough juice to the phone while running. A friend of mine uses a similar charger for his HD2, he even tried a charger with several normal USB ports and they can't supply enough power for the phone.

Thank you all for the replies. I have seen both chargers, and the Nokia N97 one is even cheaper on Amazon. I will probably go with the Motorola one, as it seems to have enough power for the HD2. I was able to find out that its maximum output is 950mah, which is not bad for a cell phone charger.
Looks also like a more durable one, and if the manufacturers won't change the port soon, might be able to get it to charge my future phones as well.
Now for a car mount, I will probably go with the Exomount, as I have read some very nice things about it, plus it is universal, so I'll be able to have it hold much more than this phone.
Hope this thread helps someone with the same questions as I had.

Micro usb is the agreed standard amongst most mobile phone manufacturers to reduce wastage in having to produce umpteen different power adaptors, plus it reduces manufacturing costs.

xaccers said:
Micro usb is the agreed standard amongst most mobile phone manufacturers to reduce wastage in having to produce umpteen different power adaptors, plus it reduces manufacturing costs.
Click to expand...
Click to collapse
amen to that , I was tiered of having so many different charges at home. At least at that time Nokia ruled the world (mobile world I mean), and most of them were Nokia chargers, hehe
But I prefer the micro usb norm. I just hope they will not invent a mini micro usb in the new devices. My xperia x1 and touch pro use a mini usb, which was the standard at that time

What is the max that the HD2 can get from the car charger?
I have a 500ma car charger, but when using the GPS it doesn't really charge, it seems that it only gives the same amount as the drain. (few days ago when I had 64% I connected the charger and drove for another hour or so, GPS always active, upon arrival battery was 63%)
will a 1000ma charger "charge" the battery during long drives?

I have a Brodit Active holder it works very well.
With GPS and Navigon on still charging.
I cannot put a link Serch for Brodit active holder HD2

mcbyte_it said:
What is the max that the HD2 can get from the car charger?
I have a 500ma car charger, but when using the GPS it doesn't really charge, it seems that it only gives the same amount as the drain. (few days ago when I had 64% I connected the charger and drove for another hour or so, GPS always active, upon arrival battery was 63%)
will a 1000ma charger "charge" the battery during long drives?
Click to expand...
Click to collapse
yes that will do the job,
if it does not, solder the 2 inner terminals together and that will make your phone think it plugged into the mains charger
i bought a cheap 1amp usb charger from deal extreme and did the above

Be careful with the soldering. If the charger can't supply 1A, it might damage the phone /car/charger.
Sent from my HD2 using XDA Premium App

I also need this for GPS in car,
Anyone recommend a good car charger? I have 2 cheap ones that don't charge
Sent from my Nexus One impersonator using xda premium

I bought this one for 8€ at a retailer. It is well manufactured and does what it should. http://www.hama.de/portal/articleId*179294/action*2563
Product number: hama 00093584
Charging current of 1000 mA for fast charging
12/24 V charger for practical charging in cars and trucks
space-saving coiled cable for avoiding cable clutter
Direct power supply and battery charging via the car cigarette lighter socket
IC controlled, intelligent charging (switch-over to trickle charge, overcharge protection)
LED function indicator
e approved

Fast charge hack

I bought what i thought were a couple higher quality universal chargers. They charge my razr fast but won't charge my nexus 7 at all. I have one of the chargers pulled apart but before I do any soldering I want to make sure -- if I cross the 2 data points will it work?

Well I couldn't wait 10 minutes so I tried. Answer: no. Wtf?

Can anyone tell me how to hack these chargers to make them work? Is there a resistor I need to remove?

Isn't it more likely to be a software thing?
With my samsung Tab 7.7 i couldn't charge it using my ipad charger until a Dev modded the software on the tablet.

are they 2Amp chargers? most universal chargers are only 1Amp

Well whatever the problem is, I want to charge my tablet in more than one place, I want to charge it faster than the 16 hours generic chargers are taking, and I don't want to pay $30 for OEM chargers.

If your tablet is taking 16 hours to fully charge, return it. I can drain mine after heavy use of the day and its still fully charged in under 6 hours.
Sent from my Nexus 7 using xda app-developers app

@soldeus: There's nothing wrong with my tablet. The OEM charger works fine and some of my generic chargers work, they just don't have the current. (See below)
@vivan: They are 1A chargers, but they should still work. They don't charge at all. The 500ma Blackberry charger I'm using here at work will charge it in about 8 hours.
Ironically the move to almost-universal micro usb chargers has made the market for them even worse. Now, instead of having to buy a new charger every time you buy a new phone, you have to buy a dozen different chargers till you find one that actually works. Like I said, I didn't try to cheap out. I got a high quality charger.

qoncept said:
@soldeus: There's nothing wrong with my tablet. The OEM charger works fine and some of my generic chargers work, they just don't have the current. (See below)
@vivan: They are 1A chargers, but they should still work. They don't charge at all. The 500ma Blackberry charger I'm using here at work will charge it in about 8 hours.
Ironically the move to almost-universal micro usb chargers has made the market for them even worse. Now, instead of having to buy a new charger every time you buy a new phone, you have to buy a dozen different chargers till you find one that actually works. Like I said, I didn't try to cheap out. I got a high quality charger.
Click to expand...
Click to collapse
The OEM charger is 2A for a reason. Because the tablet uses more power, it needs more current to charge at a fast pace.
Your generic 1A chargers are probably just enough to keep the tablet powered on, without draining (or charging) the battery.
If you can find a 2A universal charger, it should work just like the OEM one.

reiji said:
The OEM charger is 2A for a reason. Because the tablet uses more power, it needs more current to charge at a fast pace.
Your generic 1A chargers are probably just enough to keep the tablet powered on, without draining (or charging) the battery.
If you can find a 2A universal charger, it should work just like the OEM one.
Click to expand...
Click to collapse
No, my 1A chargers are doing NOTHING at all. I plug it in and the charging icon doesn't come on. Reviews have tested these chargers at about 950ma and as I said, my 500ma Blackberry charger isn't too bad.. It's not lack of power, it's something else.
My guess is it has whatever resistor it needs to make it an "ipad" charger. And the vast majority of 2A chargers will, too.
So.. back to my original question: what do I need to do to make this charger charge my tablet? I KNOW it's possible. I just need to find the guy who can tell me how.

I also need a charger for my car, my usb power adapter in the car does not work, need to know what car charger will work as this tablet is supposed to be my car stereo replacement, sucks having to bring your stereo in to charge it and hope it lasts till you get done work

I bought the Scosche dual 10 Watt car charger, isn't here yet though. It does say it wont charge the Samsung tablets, maybe due to the proprietary cord because apparently there is a cord that works with them. It's not a specific ipad charger and does say it works with Android devices and tablets.
On a side note, what's the best way to determine what your N7 is actually charging at?

Both of my generic chargers won't work either, a 2.1A generic iPad charger, and a 1A standard USB charger. Considering it WILL charge off a 500ma USB port, it's not a current/amperage issue, it's a software/proprietary hardware issue.

b22ri22an said:
I also need a charger for my car, my usb power adapter in the car does not work, need to know what car charger will work as this tablet is supposed to be my car stereo replacement, sucks having to bring your stereo in to charge it and hope it lasts till you get done work
Click to expand...
Click to collapse
I use a verizon branded car charger to charge my N7 but I think they charge $30 for it at the vzw store.

I suggest you read this page as it may have some info to help you modify your charger:
http://www.ladyada.net/make/mintyboost/icharge.html

neilrl79 said:
I use a verizon branded car charger to charge my N7 but I think they charge $30 for it at the vzw store.
Click to expand...
Click to collapse
the cost isn't so much the issue, its the actually working part. do they have one with an angled micro usb so i can mount the tablet in the car properly or preferably a usb adapter one where i can use my own cord

For $30 you could order a handful of different ones on ebay or monoprice and find something that works. But I want a dual charger.

grim82 said:
I suggest you read this page as it may have some info to help you modify your charger:
http://www.ladyada.net/make/mintyboost/icharge.html
Click to expand...
Click to collapse
does that mean a usb adapter that is certified to work with an ipad will work for my n7

b22ri22an said:
does that mean a usb adapter that is certified to work with an ipad will work for my n7
Click to expand...
Click to collapse
I won't say 100% but I would bet the probability is very high. For the 1A charging they all seemed to play the same game with the voltage on the data lines. Not sure you'll get 2A but you'll at least get 1A.
Edit... maybe not, see this thread:
http://forum.xda-developers.com/showthread.php?t=1781680

I have a philips as351 audio dock that pushes 2A out of the micro-usb charger and the usb port on the back and neither will charge the N7. Bummer because it looks so nice on the dock to

Charger recommendation thread

Hey Everyone,
It's become kinda obvious now that i really need to change out all my old 1A chargers for 2A chargers now.
The one that comes with the phone is nice - if I didn't need the adapter to go with it. Now it's huge and chunk.
I'd like a pretty small charger, like the wonderful 1A TC U260 I got with my mytouch 4g.
I'm considering the following:
PowerGen Dual USB 2A 10W Car charger:
http://www.amzn.com/gp/product/B006...=1789&creative=390957&creativeASIN=B006SU0SX0
PowerGen Dual Port Travel Wall Charger
http://www.amazon.com/PowerGen-Travel-Charger-Samsung-included/dp/B0073FE1F0/ref=cm_cr_dp_asin_lnk
Griffin GC23139 PowerJolt Dual car charger
http://www.amazon.com/Griffin-GC231...e=UTF8&qid=1349479987&sr=1-1&keywords=GC23139
(I really liked their dual mini which I used for a long time)
Any recommendations?

That first wall charger looks like something I'd buy. The charger and adapter I got from handtec is just so huge and ugly
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2

How about the old HP touchpad chargers. IIRC those are 2a chargers. And they are cheap
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

I bought this one. Have not recieved it yet but looks good on paper.
http://pages.ebay.com/link/?nav=item.view&id=170905466556
Sent from my GT-N7100 using xda app-developers app

This is kinda related to this thread
Can I use another USB cable with the original note 2 charger and still get 2A from it? I feel like the USB cables for my sgs2 fit better in my note 2 than the one that comes with it.

none of those car chargers will work if you plan on using the phone
ChodTheWacko said:
Hey Everyone,
It's become kinda obvious now that i really need to change out all my old 1A chargers for 2A chargers now.
The one that comes with the phone is nice - if I didn't need the adapter to go with it. Now it's huge and chunk.
I'd like a pretty small charger, like the wonderful 1A TC U260 I got with my mytouch 4g.
I'm considering the following:
PowerGen Dual USB 2A 10W Car charger:
PowerGen Dual Port Travel Wall Charger
Griffin GC23139 PowerJolt Dual car charger
(I really liked their dual mini which I used for a long time)
Any recommendations?
Click to expand...
Click to collapse
I have done a lot of research on this. If it is compatible with ANY apple products then it will not charge with your cable due to the USB standard not being the same. You will have to either mod the product or the cable to get the full 2a charge. Plus I believe the Powergen and the griffin are only 2a total output so if you are charging 2 devices it will only be 1a and 1a ports. You need to look for a 4a total output. I have yet to find any that work. If anyone can find one please let me know. Charging with a 1a charge and using a GPS you will lose power as it does not charge fast enough. You need a full 2a. p.s. had to remove the outside links because I havent posted 10x yet.

yankees177 said:
If it is compatible with ANY apple products then it will not charge with your cable due to the USB standard not being the same.
Click to expand...
Click to collapse
This is not quite true.
I believe Apple only has high speed charging if you don't use an 'apple' USB port, similar to how you don't get high speed charging if you use a USB data cable versus a charging cable.
To be 100% I don't understand how it works exactly.
I can tell you, however, the following:
1) My Griffin charger happily charged my galaxy note even going full blast (GPS/bluetooth/screen on), and I bought some iphone chargers to help my friends out, and they charged their phones (slowly) with my charger too.
2) The powergen 10W charger I put above also happily (and quickly) charges my Note II going full blast.
It actually has a different 'Apple' vs 'non apple' USB port. Non-apple stuff may not charge in the apple slot, but that's not a big deal to me. I have only one phone. My iphone friends are usually the ones running out of power anyway, so it's kind of nice one side is applely.
- Frank

to the OP, try this:
http://www.amzn.com/Mediabridge-Hig...&qid=1351550361&sr=1-12&keywords=powergen+3.1
then get a charging cable:
http://www.amzn.com/Naztech-Micro-U...1351550441&sr=1-2&keywords=usb+charging+cable
or if you have an extra cable lying around, mod it. See this post to get a better idea:
http://forum.xda-developers.com/showpost.php?p=22546114&postcount=1
Thread linked for reference:
http://forum.xda-developers.com/showthread.php?t=1686971

I have many 2a carchargers that worked great with a gs3 even an iPad that won't provide enough juice to the note to actually charge it while doing intensive tasks like mhl out in the car.
if anyone finds a car charger that actually works post it out we need a fast charge custom kernel.
I have a thread in the general note Sprint forum thatwe are discussing this as well and it seems no charger will work but an adapter I'm waiting on May

what about this?
http://www.amazon.com/gp/product/B00845NI8E/ref=oh_details_o00_s00_i00
dual 2A port car charger and comes with a Free MicroUSB cable that can handle faster charging. I ordered on so we'll see

peekeesh said:
to the OP, try this:
http://www.amzn.com/Mediabridge-Hig...&qid=1351550361&sr=1-12&keywords=powergen+3.1
This appears, from the reviews, to be an "apple"ish charger and doesn't work well with android devices.
Click to expand...
Click to collapse

Would this work?
http://pages.ebay.com/link/?nav=item.view&id=150928933202

yankees177 said:
I have done a lot of research on this. If it is compatible with ANY apple products then it will not charge with your cable due to the USB standard not being the same. You will have to either mod the product or the cable to get the full 2a charge. Plus I believe the Powergen and the griffin are only 2a total output so if you are charging 2 devices it will only be 1a and 1a ports. You need to look for a 4a total output. I have yet to find any that work. If anyone can find one please let me know. Charging with a 1a charge and using a GPS you will lose power as it does not charge fast enough. You need a full 2a. p.s. had to remove the outside links because I havent posted 10x yet.
Click to expand...
Click to collapse
Im looking for 2A on each port too wall charger and only finds these.
Car charger:
http://www.amazon.com/Qmadix-QM-DMCH4-2-AP-WH-Twin-Tablet-Charging/dp/B008AGMO7S/ref=pd_cp_e_1
Wall charger, but thinks it divides 4A on each port?
http://www.alibaba.com/product-gs/650723185/UL_Approval_4A_USB_Charger_For.html
Wall charger:
http://www.thinkgeek.com/product/efbe/#tabs
Why the heck are all for ipads, iphone and no EU plug.

I got an amazon branded 2A single usb charger about 6 months ago for another phone. It charges my Note2 quick. Sorry no links...
Sent from my SGH-T889 using Tapatalk 2

What about this please? Need input.
i.Sound Portable Charger
Has 16,000 mah
Input: 12V 1A
Output: ''5V 2.1A on each connector 2.5 A together''
I charge a number of things on here...
A friend has me a bit confused saying this could damage the charging mechanisms of the phone cause it has too much voltage?
Any input please?
Thanks

One Car Charger that works
Hello,
Whether a charger works or not depends on what DCP (Direct Charge Port) modes it supports.
I suspect the GN2 uses Shorted DCP, where the USB data lines (D+ and D-) are shorted. Apple chargers sense 2.4Vdc on these lines to allow the charger to ramp to full current. Asus and some Sammy TABs use 1.2Vdc to enable full current. This is to distinguish real USB ports from chargers, and to "encourage" you to use the manufacturer's provided charger.
It would be nice if someone can confirm what DCP mode the GN2 actually uses. Not that the charger manufacturer's publish what modes they support.... However, the charger IC manufacturer's (TI, Maxim) are beginning to get good at DCP autodetection which is going to make it much easier for us consumers.
As far as finding chargers that work,
I bought a 2.1A dual car charger at Walmart, model "i-xt" that works well with the GN2 and is listed as "on AC" when connected. Implying full current.
Cheers,
-Plaz
---------- Post added at 12:43 PM ---------- Previous post was at 12:31 PM ----------
rockky said:
i.Sound Portable Charger
Has 16,000 mah
Input: 12V 1A
Output: ''5V 2.1A on each connector 2.5 A together''
I charge a number of things on here...
A friend has me a bit confused saying this could damage the charging mechanisms of the phone cause it has too much voltage?
Any input please?
Thanks
Click to expand...
Click to collapse
You don't have to worry about your phone being damaged. Phones have built-in protection for over-voltage and over current. 5Vdc is proper voltage for USB devices anyway (Output 5V, as listed in the specs). The catch is if the phone allows full current charging. That depends on the DCP mode of the charger. I'm not positive what mode the GN2 truly supports. If you already have the charger, you can determine if full current is being used by checking under settings -> battery while connected to the charger. If you see the "On AC" verbiage, the phone is in full current mode. If not, the charger is limiting to 500ma and acts like a standard USB port. You phone will still charge, but it will take longer.
Clear as mud?
Cheers,
-Plaz

http://www.amazon.co.uk/dp/B0044E7MNG/ref=cm_sw_r_an_am_ap_am_gb?ie=UTF8
Would this work?
Sent from my GT-N7105 using Tapatalk 2

Thanks
QUOTE=Plazmid;33523324]Hello,
Whether a charger works or not depends on what DCP (Direct Charge Port) modes it supports.
I suspect the GN2 uses Shorted DCP, where the USB data lines (D+ and D-) are shorted. Apple chargers sense 2.4Vdc on these lines to allow the charger to ramp to full current. Asus and some Sammy TABs use 1.2Vdc to enable full current. This is to distinguish real USB ports from chargers, and to "encourage" you to use the manufacturer's provided charger.
It would be nice if someone can confirm what DCP mode the GN2 actually uses. Not that the charger manufacturer's publish what modes they support.... However, the charger IC manufacturer's (TI, Maxim) are beginning to get good at DCP autodetection which is going to make it much easier for us consumers.
As far as finding chargers that work,
I bought a 2.1A dual car charger at Walmart, model "i-xt" that works well with the GN2 and is listed as "on AC" when connected. Implying full current.
Cheers,
-Plaz
---------- Post added at 12:43 PM ---------- Previous post was at 12:31 PM ----------
You don't have to worry about your phone being damaged. Phones have built-in protection for over-voltage and over current. 5Vdc is proper voltage for USB devices anyway (Output 5V, as listed in the specs). The catch is if the phone allows full current charging. That depends on the DCP mode of the charger. I'm not positive what mode the GN2 truly supports. If you already have the charger, you can determine if full current is being used by checking under settings -> battery while connected to the charger. If you see the "On AC" verbiage, the phone is in full current mode. If not, the charger is limiting to 500ma and acts like a standard USB port. You phone will still charge, but it will take longer.
Clear as mud?
Cheers,
-Plaz[/QUOTE]

I bought this:
http://www.amazon.com/gp/product/B005AWO8V0/
It's 2A and works great. I like that the cord is attached, so no losing a USB cable or anything. Also has an integrated USB for other devices.

Plazmid said:
Hello,
Whether a charger works or not depends on what DCP (Direct Charge Port) modes it supports.
I suspect the GN2 uses Shorted DCP, where the USB data lines (D+ and D-) are shorted. Apple chargers sense 2.4Vdc on these lines to allow the charger to ramp to full current. Asus and some Sammy TABs use 1.2Vdc to enable full current. This is to distinguish real USB ports from chargers, and to "encourage" you to use the manufacturer's provided charger.
It would be nice if someone can confirm what DCP mode the GN2 actually uses. Not that the charger manufacturer's publish what modes they support.... However, the charger IC manufacturer's (TI, Maxim) are beginning to get good at DCP autodetection which is going to make it much easier for us consumers.
As far as finding chargers that work,
I bought a 2.1A dual car charger at Walmart, model "i-xt" that works well with the GN2 and is listed as "on AC" when connected. Implying full current.
Cheers,
-Plaz
---------- Post added at 12:43 PM ---------- Previous post was at 12:31 PM ----------
You don't have to worry about your phone being damaged. Phones have built-in protection for over-voltage and over current. 5Vdc is proper voltage for USB devices anyway (Output 5V, as listed in the specs). The catch is if the phone allows full current charging. That depends on the DCP mode of the charger. I'm not positive what mode the GN2 truly supports. If you already have the charger, you can determine if full current is being used by checking under settings -> battery while connected to the charger. If you see the "On AC" verbiage, the phone is in full current mode. If not, the charger is limiting to 500ma and acts like a standard USB port. You phone will still charge, but it will take longer.
Clear as mud?
Cheers,
-Plaz
Click to expand...
Click to collapse
So I understand the shorting D+/D- internally or via charging cable to enable "AC" charging. I understand that Apple and apparently Sammy/Asus use voltage on those lines to signal the requirement for full current. Here's my question: if my Note2 is connected to brand X charger and it says AC charging in the settings under battery, does that mean I am theoretically pulling the max current of that brand X charger. This of course assumes the battery is empty enough, temperatures of the battery and charger are low enough, etc...
What I'm getting at is does having a shorted charger or cable with an android on an iCharger give us full iPower? Gawd that sounds horrible doesn't it! :silly: Or, if you're getting "AC" from the iCharger is it really only 1.1A or 1.6A (just tossing those numbers out there) vice the 2.1A it would be charging an iPad at?