yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Accessories] Mike Fitz:
I think it's the cables more than anything that determine if it's gonna work or not, at least in my experience so far. I have chargers (both travel and car) that will not work with a regular USB micro cable, including OEM, but will work with a certain retractable cable w/ interchangeable tips.

I've been using a Griffin PowerJolt Plus with integrated cable to charge my EVO for a good while. I can plug my N7 in and it goes to "Charging (AC)"

Bought a Scosche Dual 10 Watt plug and it arrived today. With two different straight cables, including OEM, it just stays on "Discharging". Using that retractable cable with interchangeable tips, it goes to "Charging (AC)".

Same with a New Trent IMP1000 and an i.Trek High Power Slim AC Wall Plug, neither go to "Charging" with the regular cables but both work with the retractable.

Amazon is showing a couple chargers specifically for the N7, I bought both and am waiting on them. Hoping they work...

CrazyOnDigital Dual Car Charger DC Adapter with dual USB Cable fits Google Nexus 7 (Black)

CrazyOnDigital Home Wall Charger For Google Nexus 7 (Black)
[Nexus 7 Accessories] nevertheless:
I don't think the Charging A/C or USB indicator really works with the N7. You can have it go to AC Charging. but it can be really slooow, even on AC. I think you need something over 1.0a to get charging rates at least comparable to the oem charger. Although my 1.2a Nokia is adequate.
[Nexus 7 Accessories] vidanay:
I can confirm this adapter works unmodified and my N7 recognizes it as an AC adapter. I don't recall if I bought it from Amazon or not, but they have it available.

http://www.amazon.com/JustWireless-U...wireless+03104
[Nexus 7 Accessories] youareme7:
Do you know where you got the retractable cable? I have a new trent battery and would really like to be able to use it with my nexus 7 but the regular usb cables don't work with it.
[Nexus 7 Accessories] blahblahyoutoo:
it looks phallic.

i don't want something that looks like a penis sticking into my power adapter.
[Nexus 7 Accessories] RedWingsFan:
Same here.
[Nexus 7 Accessories] youareme7:
I ordered one of these, seems like the Galaxy Nexus has this problem too; I'll update when I get it to confirm if it works with my other chargers (including new trent battery) that the Nexus 7 doesn't charge with right now.

http://www.amazon.com/Naztech-Micro-USB-Charging-Cable/dp/B003VYBCAY
[Nexus 7 Accessories] vidanay:
The MediaBridge adapter does NOT work out of the box. I tried it this morning. I have not had a chance to open it up and see if it can be modified.
[Nexus 7 Accessories] Mike Fitz:
I wish I did cause I'd order a few more since it works with every charger I have unlike the straight cables. I searched Amazon including my previous orders and there's nothing that matches the one I have. Almost think it came with the New Trent IMP1000 when I bought it a year or more ago since I had it in the bag with it.

Here's a picture of the cable:
[Nexus 7 Accessories] compact_bijou:
Those are all over eBay

I take the springy bit out of the middle of them, soak the cables (not the ends) in boiled water and

they straighten right out to make slimline, flexible, lightweight and unobtrusive charging/data cables.

Mine have a micro USB on the end.

I got three for £3.58 ($5) on the Bay inc P&P
[Nexus 7 Accessories] Mike Fitz:
Thing is, the retractable ones with a fixed Micro USB don't work, I have 2 of them and neither will show "Charging" except with the OEM charger. This particular one with the interchangeable tips works with the stock charger, New Trent battery pack, 2.1A dual port travel charger, and Scosche 2,1A dual port car charger. None of the other cables I have, including the OEM cable will work with any of those except the OEM charger.
[Nexus 7 Accessories] compact_bijou:
Hmmm.

/doublechecks

I have one here which does work on both data and charging.

If only my Nexus 7 would take a charge!
[Nexus 7 Accessories] Mike Fitz:
Does it work with any of the 2.1A aftermarket chargers or just with the stock charger? Mine all work with the stock charger, just not any aftermarket chargers or battery packs I've tried.
[Nexus 7 Accessories] compact_bijou:
No idea with my Nexus as it loses about 1% per minute when it's switched on and when plugged in the supplied PSU only maintains the power level.

Duff PSU I think.

Replacement Nexus ought to have arrived today but will be here tomorrow.

Sent from my Nexus 7
[Nexus 7 Accessories] Troute:
I've tried the Griffin 2.1amp powerblock (don't think you can buy them any more), this charges everything else I have but the N7 doesn't even see it as plugged in.
[Nexus 7 Accessories] compact_bijou:
I've got a Griffin 12V adapter for the car, dual 1A - charges OK, probably slowly.

If the Nexus I get tomorrow takes a charge and isn't otherwise duff I'll buy the 2.1A version then hunt down a couple of meaty wall warts.

Sent from my Nexus 7
[Nexus 7 Accessories] kalipedia:
Noooo... it just arrived today! I haven't had a chance to try it myself yet, but please let me know if you figure out a mod that gets it working.
[Nexus 7 Accessories] Quidam03:
Does Not Work

I tried the mediabridge charger....it does not work with the N7
[Nexus 7 Accessories] Semantics:
I ordered this one from Boxwave, for 10 bucks. Claims to be designed for the N7 and will rapidly charge it. I will report back when I get this charger.

http://www.boxwave.com/google-nexus...-nexus-7-car-charger/bwpdd/gtt-zvwf/#features
[Nexus 7 Accessories] DandroidT:
I used the tmobile dual usb charger with stock galaxy S2 cable and it charged the N7 from 25% to 100% in 2.5 hours. Next time I will try the cable that come with the charger. I got the charger from all4cellular (no link allow yet:o)
[Nexus 7 Accessories] DJFriar:
CyberPower Dual Car Charger 2.1A

I can state that the Griffith Dual Micro 1A does not work, the N7 doesn't even know its plugged in.

So I bought the CyberPower Dual Car Charger 2.1A today from Best Buy ($18), and it doesn't work either. The N7 doesn't think its plugged in at all.

I confirmed both car chargers work with my iPhone 4S, and I confirmed the tablet and cord work on the standard Nexus wall wart.

I called Google and they do not have a car charger on their roadmap. We are essentially on our own. So mine is likely going to go back as in car GPS is the primary reason I purchased mine.
[Nexus 7 Accessories] Mike Fitz:
This one works:

http://www.amazon.com/gp/product/B00846Z2TQ/ref=oh_details_o04_s00_i00

Has an extra 2A and 1A port as well as the micro and mini charger on the main coiled cord which is the one that works with the N7.
[Nexus 7 Accessories] RedWingsFan:
I tried the car charger from the Griffin PowerDuo 2 Amp Charger with the stock cable and it showed as NOT charging. I tried it with an old blackberry cable and again, NOT charging. I then tried the cable that came with my Anker External Battery Pack and it showed as AC Charging.

http://www.amazon.com/Griffin-Technology-PowerDuo-Charger-iPhone/dp/B003GAEW6Y

I also tried my "Motorola Vehicle Power Adapter micro-USB Rapid Rate Charger" and it said AC Charging. But it is only rated at 950 mA so I'm not sure how fast it would charge the N7.

http://www.amazon.com/Motorola-Vehi...le+Power+Adapter+micro-USB+Rapid+Rate+Charger
[Nexus 7 Accessories] vita10gy:
Are you confirming it works, or just going off what it says?
[Nexus 7 Accessories] Mike Fitz:
I can confirm it works, got it today and tested it. Goes to "Charging (AC)" when plugged in.
[Nexus 7 Accessories] RedWingsFan:
How long is the supplied cord?

Did you try it with the stock cable too?
[Nexus 7 Accessories] player911:
Eh my Griffin 2 port 2A (1A each) doesn't work. I modded the charger to do AC. My galaxy Nexus charges fine. N7 doesn't even see it. Wtf?

I need a dual USB charger for my iPod and Phone/Tablet.
[Nexus 7 Accessories] crxtasi:
The rocketfish I got for free from bestbuy works. Charges both my nexus and my kids ipad at the same time.

Link
[Nexus 7 Accessories] Mike Fitz:
It's a coiled cord with a splitter at the end for the micro and mini USB connectors. Fully stretched it's 4 feet long. I tried a regular retractable USB cable in the 2A port and it did not go to "Charging (AC)" but I'd be using the built in cable for the N7 which does work and the other 2 ports for phones anyway.
[Nexus 7 Accessories] RedWingsFan:
Thanks for the update.
[Nexus 7 Accessories] clockcycle:
That is one strange looking penis.. So would you say the 12V power adapter / cigarette lighter inlet-outlet looks like a veejayjay?

IMO neither resemble, unless you're doing the circle finger gesture as to insinuate some other action.

On Topic: In looking for the proper image to use here I found this at J&R http://www.jr.com/travelon/pe/TLN_12655/
[Nexus 7 Accessories] Prey521:
I have this one:

http://www.amazon.com/gp/product/B00809LJAI/ref=oh_details_o02_s00_i00

And it charges my N7 and my HTC Evo V 4G without a problem at the same time. I'm using micro usb right angle adapters on them to lessen the risk of any damage.

http://www.amazon.com/gp/product/B001EJHH20/ref=oh_details_o03_s00_i00
[Nexus 7 Accessories] ehidle:
Were you certain to solder the data pins together on both sides of the PCB? You have to do the data pins on each USB connecter individually.
[Nexus 7 Accessories] RedWingsFan:
Are you using the stock N7 Cable with this charger?
[Nexus 7 Accessories] Prey521:
Yes, but I can try it with a diff cable if you like to test it out.
[Nexus 7 Accessories] RedWingsFan:
That is up to you. I just want to make sure we know your exact combo that works. I'm going to order one of these.
[Nexus 7 Accessories] Mike Fitz:
Just curious, does it still go to "Charging (AC)" without the right angle adapter?

I know the one cable I have that seems to work with any charger uses adapters and it would be interesting to see if that has any effect.
[Nexus 7 Accessories] No4all:
hxxp://dealextreme.com/p/car-cigarette-powered-dual-usb-adapter-charger-for-ipad-iphone-black-silver-dc-12-24v-145018?item=36

This should work right?

I might buy it once I get my Nexus 7.
[Nexus 7 Accessories] RedWingsFan:
It is hit and miss at this point as to what will and will not work.
[Nexus 7 Accessories] jup007:
Satechi 2412ST works with provided converter (which, assumingly, does just connect pins) - says Charging (AC). Although the converter makes it a bit unwieldy.

Doesn't work at all without converter (unlike gnex which at least recognizes it as USB charger).
[Nexus 7 Accessories] Prey521:
Just tried it on a long drive and it didn't actually charge, just slow down the drain, so don't bother with it. If I leave the phone unplugged, it charges the N7 fine. I'm going to go for the Travelon one to see how it works. I need a dual port model since I have my N7 and my phone mounted on my dash.
[Nexus 7 Accessories] yeahmon:
Confirmed working - I ordered 4 of these for all of my cars. They work great.

http://www.amazon.com/gp/product/B000S5Q9CA/ref=oh_details_o00_s00_i00
[Nexus 7 Accessories] RedWingsFan:
I have one of these but it is rated at 1A. Have you tested how well it charges? How long it takes?
[Nexus 7 Accessories] yeahmon:
@^#$. You're right. When I bought these, it was listed at 2A. That's the ONLY reason I bought 4 of them. I just got them yesterday, so I didn't even think to look at the specs yet. I just plugged it in and it lit up the charging icon on my N7.

Please disperse. There is nothing to see here.
[Nexus 7 Accessories] kalipedia:
Can confirm this one's working (with caveat as follows): http://www.kmart.com/wireless-gear-...110001P?sLevel=0&redirectType=SKIP_LEVEL#desc

My caveat - I bought this at my local Kmart in person and the box for mine says: "for use with: Motorola, Blackberry, Samsung, LG, Nokia, Sanyo, Kyocera, iPhone/iPod/iPad, HTC, Droid, Kindle & Nook & Most E-Readers & Tablets", whereas the pic in the online Kmart image for the same model (Model #4RC877) says: "for all LG & Samsung".

I'm sure it's the same item but they probably updated the list to show it works for more than just LG & Samsung.

Now to return the Mediabridge one I got (sadly can confirm that does not work)...
[Nexus 7 Accessories] krelvinaz:
http://www.amazon.com/gp/product/B004Q8YHO2

This arrived today. It doesn't have a rating, but I had heard it worked on the Nexus as an AC charger so I got one.

I plugged it into the AUX plug in my truck (not the cigarrete lighter plug which has a lower amp rating).

Plugging it into the Nexus 7 it showed up as an AC charge (Not USB)

While it said AC charge quickly in the system battery info screen, the Battery Monitor Widget which also showed AC didn't actually say Charging right away. I've seen this with the OEM power charger from time to time, like it needs (the app) to refresh and doesn't do that right away.

This also showed AC on my HTC Rezound which is very picky about chargers as well. Many chargers show up as USB instead of AC.

If I have a con on the charger, it would be the cable. It is a coiled cable and it is not very long. So it would be hard to hold the Nexus while sitting in the driver or passenger seat with it plugged in.

Using the OEM AC charger, the unit charges at 2500+, Using this charger the unit is charging at 800-900+ Slower, but not at a discharge rate. So if you started with a charged unit for a long trip, and had it plugged in, it would keep the unit fully charged.
[Nexus 7 Accessories] nevertheless:
When charging tablets, it's not enough for the unit to reflect that it is using A/C charging. The unit may show that it is charging A/C even when plugged into a 1a car charger. But at that amperage, the N7 will charge painfully slow, especially because one may be using it to navigate or play music or video while you are charging. 1a is not really enough juice for the N7 in this situation. For charging in the car. the N7 really needs a 2a charger, or at least something over 1a.

For anybody who still wants to get a 1a charger for around $5 (I would avoid at this point), I would still go with the tried and true Motorola or HTC mytouch. One shouldn't buy a charger unless the rating is a known value.
[Nexus 7 Accessories] player911:
That would be perfect for me if it would work.
[Nexus 7 Accessories] dct3416:
I just received the Verizon Dual USB Vehicle Charger and it's working great with the Nexus 7. I had both my Galaxy Nexus and Nexus 7 plugged into it (at the same time) for a short 20 minute drive with the Nexus 7 using Navigation. I started out with 88% battery and by the time I got back home it had a full 100% charge. Looks like I don't need to buy the PowerJolt after all! I also tried three different USB cables (Monoprice gold plated and the stock cables that came with both devices) and they all worked just fine.
[Nexus 7 Accessories] kmandel:
App that measures amperage from Charger?

Is there an app that can actually report how many amps are being pulled from the charger?
[Nexus 7 Accessories] bennor3814:
The Verizon Wireless car charger, model 580394A001, for a Verizon Wireless Cosmos phone does appear to charge the N7 tablet. Unknown if fast or slow charge. Strangely the USB port on that particular phone charger

does not

charge the tablet when using the N7 USB cord.

The Belkin DC adapter, model USB-CLA, not sure where I got it from maybe a Belkin 7 port USB hub, also will not charge the N7 with the N7 USB cord. The Belin USB-CLA device indicates an input of 12~24dc, output of 5.5Vdc;700mA.

A Radio Shack 12VDC to 120VAC Power Inverter (Cat.No. 22-151) will charge the N7 using the N7's AC charger/USB cable. The Radio Shack inverter indicates input of 12VDC nominal, 11.0-15VDC range. Output of 120V/150W continuous. Peak power of 300W.

Also the LG AC travel adapter model STA-U12WS will charge the N7 both with the LG USB cable and with the N7 USB cable. This adapter indicates an input of 100-240V-50/60Hz 0.2A with an output of 5.1V-0.7A.
[Nexus 7 Accessories] tlr1000:
I have a number of different car chargers and none of them work when I use it with the oem cable. However, all my chargers work when I use them with a generic mini usb cable + a mini to micro adapter.
[Nexus 7 Accessories] Prey521:
It's $8 with free shipping on Amazon.

http://www.amazon.com/Verizon-Incredible-Thunderbolt-Fascinate-Continuum/dp/B004WM5X8Q
[Nexus 7 Accessories] needshelp101:
I can confirm that this charger does not work. Though cnet said it did, go figure. I tried it with the factory cable, my RAZR maxx cable, and my old Droid incredible htc cable. I'm going to try it with my fast boot cable later on to see if it works.

Qmadix QM-DMCH4.2-AP-WH USB Twin Tablet Charging 4.2 Amp Kit - Car Charger - Retail Packaging - Black

http://www.amazon.com/dp/B008AGMO7S/ref=cm_sw_r_an_am_ap_am_us?ie=UTF8

Why is it so hard to find a car charger? I've never had this problem with any of my past devices

edit: seems that not even the dev cable i have works. i have four nexus tablets (family members) two have the boot loader unlocked and rooted, the others are bone stock. now when i plug in the rooted ones into the computer and go in the battery app it just says charging ( does not mention ac or dc charging). the unrooted ones when plugged in say ac or dc charging. so it got me thinking that it may be a bootloader issue. though i could be completely wrong.

also i called the google hotline and talked to a representative who couldnt figure out the problem. he kept telling me that i dont have enough juice to run the tablet off of the cigarette lighter. which i tried to tell him that the adapter im using is 2.1amps. needless to say he was stumped, as am i. he was actually on xda reading all the problems with car chargers ha ha. well now im stuck with a $29 charger that i cant return due to the fact that the box was thrown out. wtf google.
[Nexus 7 Accessories] player911:
This might be what I need. Great find. So this charges the N7 with a normal cable, but not with the stock N7 cable?
[Nexus 7 Accessories] mi7chy:
This looks like a Griffin PowerJolt Dual Universal Micro and is only 1 amp per port.

http://store.griffintechnology.com/smartphone/powerjolt-dual-universal-micro
[Nexus 7 Accessories] Entropy512:
If they charge an iPhone/iPad, they will NOT charge a Nexus 7 without modifications or a special adapter. This is because the Nexus 7 follows the USB Battery Charging specification, while iDevices do NOT conform to the standard.

For a charger to work, the following must hold true:

1) 2A rating for the +5v rail - Lower-rated chargers may work but will be somewhat slower or overheat

2) D+ and D- shorted together by the cable or charger - Standard cables in iDevice chargers will fail this. Special adapters that short these internally will permit iDevice chargers to work

3) The MicroUSB plug can't be too short or it just won't connect reliably. My Monoprice cables are the same length as the N7's factory cable, as are most others, but some have reported cables with plugs that are too short.

The most basic of conclusions here:

Anything marketed as being for iPad or iPhone will NOT work without modification or adapter cables.
[Nexus 7 Accessories] Entropy512:
Of course it won't work. It does not conform to the USB Battery Charging standard.

See the specs - "Made for iPod touch, iPod mini, iPhone and iPad"

If you see that, it is NOT a standards-compliant charger.
[Nexus 7 Accessories] Entropy512:
From the charger - not yet.

Current into the battery (charger current minus system power usage - so it'll report lower if the screen is bright and CPU is cranking) - Yes if you apply http://review.cyanogenmod.com/#/c/20891/ to a kernel to fix CurrentWidget.
[Nexus 7 Accessories] p4nts:
TomTom Universal High-Speed Multi-Charger

This is also a semi-fail:

TomTom Universal High-Speed Multi-Charger

Regular USB port works but unfortunately the 2.1 Amp High Power port doesn't.

Tried it with Generic and Asus cable.
[Nexus 7 Accessories] Entropy512:
Since it mentions iPod/iPhone in the description, the 2.1A port probably has iDevice voltage dividers instead of shorting D+ and D- together - so yeah, it'll fail.
[Nexus 7 Accessories] mi7chy:
Was concerned that I might have to buy new car charger and spare wall charger for travel but turns out what I already had were adequate.

Sprint Micro-USB vehicle charger plus, model PVX8823, 0.65A for each of two ports (one attached micro-USB cable, other is standard female USB port)

- shows AC charging when using permanent cable

- insufficient power since drain when tablet is in use is slightly faster than recharge rate

Motorola vehicle charger, model SPN5400A , 0.95A

- shows AC charging

- better than the Sprint one above as it maintains the battery level when tablet is pushed with 3D gaming graphics Dead Trigger, Real Racing HD, etc.

- only ~$5 on Amazon

- some people may be bothered by the bright blue LED glow but can probably tape or black marker over

HTC wall charger from HTC Thunderbolt, model CNR6300, 1A

- compared with OEM charger plus OEM cable this charger plus OEM cable will recharge at the same rate in sleep mode judging by the built-in battery graph

- this charger plus Samsung USB cable (from Epic 4G) charges at a slightly lower rate, I would guestimate ~5% slower, probably due to additional resistance with longer cable

- charger size is tiny and is 1/3 to possibly 1/4 size of OEM charger, going to use this for travel due to size
[Nexus 7 Accessories] needshelp101:
The only reason i went with this is because i saw in cnet it worked with the n7. Otherwise your right i would have just skipped right past it. Oh well Lesson learned
[Nexus 7 Accessories] Prey521:
The Verizon Bullet Charger does NOT work with my Nex. Tried the OEM and a bunch of other cables and the Nex never even saw it. Charges my phone just fine....going back!!

http://www.amazon.com/gp/product/B004WM5X8Q/ref=oh_details_o01_s00_i00

That's 3 diff high speed chargers I've had to send back so far that are not compatible with the Nex! Why is finding a good dual USB car charger for this such a pain!!!!
[Nexus 7 Accessories] Entropy512:
Because Apple has major market share and also chose not to follow the USB Battery Charging standard. As a result, anything designed for iPad will not get properly detected because Apple chargers don't follow the standard - the Nexus does.

If the charger listed above works for iPad, it will not properly support most of the other devices on its list. They may charge at a reduced rate (Many phones charge at a reduced rate when they see an "unknown" charger), but will not charge at full rate with any device that follows the standard.

That charger will work if you either:

1) Open it up and short D+ and D- together

2) Use a cable or adapter that shorts D+ and D- together
[Nexus 7 Accessories] mihirdshah1:
I forgot to return the ASUS charger and the USB cable with my defective replacement 7 to Google. Should I be worried?
[Nexus 7 Accessories] Prey521:
Somebody posted earlier stating that their Nexus worked fine with that Verizon charger, which is why I was surprised that mine would not.
[Nexus 7 Accessories] Quidam03:
Tried that one.. (the media bridge from amazon)..it did not work for me..............
[Nexus 7 Accessories] dunneldeen:
I did this also, you don't need to be a soldering expert for the Griffin Powerjolt, the middle pins are easy to solder. I found it harder to remove the case than to do the actual soldering; I just super glued the adapter back together when I was done.

Before the mod, my N7 showed Discharging and USB plugged. After the mod, my N7 now shows Charging and AC Plugged. I charged my N7 for 28 minutes, ran the numbers, and it looks like it's charging at approx 34% per hour. Not overly scientific, but perhaps a decent indication of how fast it will charge.

---------- Post added at 09:53 PM ---------- Previous post was at 09:25 PM ----------

I read in another thread (http://xdaforums.com/showthread.php?t=1823377) that the AT&T charger (http://www.att.com/shop/wireless/accessories/chargers/sku6220280.html#fbid=2j_q_pRy1Xw) will charge the N7 off the added plug, though not not without it's issues.