Develop Bugs

USB car charger from Walmart

Can the GT 10.1 plug into any USB car charger?
I was looking at this from Walmart's website
If so, it'll be a lot cheaper than the car charger Samsung is selling
http://www.walmart.com/ip/Scosche-Dual-USB-Car-Charger/5691047
Sent from my GT-P7510 using Tapatalk

I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain

i bought a $10 2 port charger from amazon for the ipad/galaxy tab 7". it works fine for both tablets and the gt10.1.

madsquabbles said:
i bought a $10 2 port charger from amazon for the ipad/galaxy tab 7". it works fine for both tablets and the gt10.1.
Click to expand...
Click to collapse
Do you have the link?

Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App

X10D3 said:
Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App
Click to expand...
Click to collapse
Ok. Thanks.
Sent from my GT-P7510 using Tapatalk

oh......i see.
X10D3 said:
Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App
Click to expand...
Click to collapse
Sent from my SHW-M110S using XDA App

I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz

media_11 said:
I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz
Click to expand...
Click to collapse
I will definitely look into that particular model.
Sent from my GT-P7510 using Tapatalk

figurine said:
I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain
Click to expand...
Click to collapse
it's. still charging. you can get a trickle charge even from standard USB. s3ms that this is one of the only tegra2 tablets that can.
I heard that the trnaformer can but mine doesn't. it should work if I had USB.3.0.

madsquabbles said:
it's. still charging. you can get a trickle charge even from standard USB. s3ms that this is one of the only tegra2 tablets that can.
I heard that the trnaformer can but mine doesn't. it should work if I had USB.3.0.
Click to expand...
Click to collapse
So if l'm using it to watch videos and music while on wifi, do you think that it'll maintain its charge while trickle charging?

I bought a couple of these adapters;
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=330565218553&ssPageName=ADME:X:RTQ:AU:1123
Now I can charge my Galaxy Tab 10.1v off ANY USB port - very very handy. Works just very well from a PC USB port too.

figurine said:
So if l'm using it to watch videos and music while on wifi, do you think that it'll maintain its charge while trickle charging?
Click to expand...
Click to collapse
i don't think the amount coming in will equal the amount discharged. depends on the brightness of the screen and how much cpu you're using. mine was charging veeeerrry slowly while reading the steps to root and the screen on, other than that it was idle and still slowly charged.

media_11 said:
I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz
Click to expand...
Click to collapse
I also bought this. Arrived in 3 weeks from China, but free shipping, or $0.01.
They seem very good. There is some hard to read text (even in English) on the plastic part that tells you the top port is for iPad (2.1A) and the bottom is for others (1A). I've put a photo below of the guts. Seems it's definitely more than just some cheap resistors and a fuse.
I tried it in my vehicle and you still get the red X with a OEM cable with the device powered on, but NOT if you use an adapter plug found on eBay.
Do yourself a favor and order 3-4 of each. =)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

figurine said:
I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain
Click to expand...
Click to collapse
Nope - you need a 2A charger, but any old 2A charger won't do. Most are designed for the iPad, which uses resistive voltage dividers in the charger to signal the presence of a dumb charger. Specifically the iPad looks for 2.0 volts on one of the data pins and 2.8 on the other.
The Tab expects D+ and D- to be shorted together and somewhere around 1.2-1.24 volts.
It IS possible to make iPad chargers (confirmed on Scosche reVIVE II) work as follows:
Bridge D+ and D- with a solder blob.
Remove the resistor that was the upper part of the 2.8v voltage divider (i.e. between the data pin and +5v).
At this point the charger should output around 1.2 volts on D+ and D-.

Best Charger For GNex (or any USB device)

I've been hunting for an extra, high quality, 2A USB charger for my devices - but I didn't want to pay $25-$30 to get a Samsung or Asus 2A USB charger. And then I came across this blog entry by Ken Shirriff where he went and reviewed 12 different USB chargers including genuine and fake apple chargers + other brands.
http://goo.gl/rym3M
Really good and informative post. Definitely recommend a read. For the Cole's notes version, apple makes great USB chargers ... but not the best. The best USB charger in this review actually turned out to be the USB charger that came with the ill-fated HP TouchPad. This charger has very low noise and voltage drop characteristics.
What's more, you can actually get these great HP chargers for $15 on eBay. Or via Kijiji for $15 if you're in the Toronto area.
Mine is off Kijiji and here are logged screenshots of my GNex charging from 12% to 100% with both the Samsung charger that came with it and the HP Charger.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
FYI, I use this charger for both my GNex and my N7. I've posted OEM vs HP Charger graphs from my N7 here.

I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
It doesn't buzz like the stock one and it doesn't get hot when charging the GNex at ~1A like the stock one does. As well, this charger is capable of handling tablet charging as well. Guess I should have indicated all this in my first post.

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The post is rating the chargers on far more than just how quickly it charges a phone.
Just to add my two cents, anecdotally, before even seeing this post, I was going to say that the touchpad chargers have been the best I've used also. Glad i bought 4 or 5 of them for $5/each when hp went on their firesale binge.

I read that same article and bough two of them months ago for $6. They are great. They do have a slight buzz if you put your ear up to them but nothing like the samsung one. Highly recommend them.

Interesting article. Not really sure what to make of it though, beyond not buying counterfeit chargers?

I've actually got a bunch of those HP chargers for my Gnex. I got them straight from HP for $4 each last summer. Very awesome chargers.

Is it healthy to charge the battery that fast ?

Cupellom said:
Is it healthy to charge the battery that fast ?
Click to expand...
Click to collapse
I think its not.
Sent from my Galaxy Nexus using Tapatalk

Cupellom said:
Is it healthy to charge the battery that fast ?
Click to expand...
Click to collapse
palco2 said:
I think its not.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Well... the battery charges at the same speed for both the stock 1A charger and the HP 2A charger. The device itself regulates how much power it will draw, and drawing 1A from a 2A charger is surely more efficient and will result in a longer lasting and better charger, as well as one that can be used for tablets and other USB devices that want to draw more than 1A. I wonder if you can take the 2A charger and put a USB Splitter or something on there and charge 2 1A devices at the same time... I'd imagine so.

I use my OEM Galaxy S4 charger. It charges all of my devices faster than any other charger I've ever tried.

Review of Anker 3.6A dual port wall charger w/pics!!!

This is a review of Anker 3.6A dual usb port wall charger: http://www.amazon.com/Anker®-18W-3-6A-Wall-Charger/dp/B00B8L36A6/
Just like cases, wall chargers market starting to get saturated with too many choices any time you search for one. But to find a good quality one that will live up to its current rating, have a reliable design that will not burn out, and with a relatively small footprint and dual output - that's not easy to find. I looked into testing of new Anker 3.6A wall charger to see how it will meet all these requirements.
First of all, the charger itself is very compact and lightweight. Under 80g with a dimensions of approximately 70mm x 55mm x 25mm it will be very comfortable to take with you while traveling. It's slim design is not obstructive if you either plug it into wall outlet (leaving enough room for another plug if its a dual outlet) or power strip where it could be used along side with other cables. For such a slim design it has a very impressive spec of 3.6A of shared output current between two ports. Obviously having a dual usb port is a huge bonus, but being able to supply 3.6A into both of them (combined and shared between two ports) or into each (if only one port used at a time) - this is very impressive! Yes, they have it labeled as one port being Android and the other one Apple, but while testing it with Galaxy Note 2 and Nexus 7 I found both ports work reliably to charge android devices. I guess this just means that you can also use it to charge Apple device with their proprietary charging circuit. I have another dual wall charger from about a year ago where I can't charger Android devices from "apple" port. This Anker charger, which I verified with their car charger as well, has no issues powering up Android devices I tested from their "apple" port. I also verified with my Note 2 that charging current was at max 2A, so the phone will be charged up at maximum speed. Furthermore, I had both Note 2 and Nexus 7 plugged in together, both charging as AC in battery setting, and I have verified Note 2 sinking 2A. Also while charging, I didn't feel any overheating, it stayed cool.
Definitely a highly recommended wall charger and a great value for under $12 for 3.6A dual port slim design which is covered by Anker's 18-month warranty.
Here are some pics:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

I got this little guy ahead of your review, and can't agree more. Charger does the job very well on either port.

Thanks just ordered one. Been needing one for some time now what with three tablets and four phones. This will come in handy and with Amazon Prime's free shipping is a nice little deal.

One thing I have to mention is that when charging Note 2 and another Android non-Samsung device, I would recommend to keep Note 2 on "apple" port while other device on "android" port. I had two Nexus 7 tablets charging on both ports, starting at the same low battery level, and found the one connected to "android" port was charging at a faster rate. Bottom line, Samsung phones charge at fast rate from both ports, while other Android devices like Nexus 7 charge faster from android port versus apple one.

vectron said:
Bottom line, Samsung phones charge at fast rate from both ports, while other Android devices like Nexus 7 charge faster from android port versus apple one.
Click to expand...
Click to collapse
That explains some of the debate going on in the 2 amp car charger thread.
Some people were saying that "apple" 2.1a ports won't charge the note 2 quickly when others were saying it charged their note 2s fine. Maybe you should go report your findings in that thread too?

Searching for USB Charger with 2.0A current output for Android

I lost my original N7 2.0A charger. I've tried several of those high power USB chargers but non of them supported Android charging more than 0.5A. It seems that they designed for Apple products. It will deliver full power for Apple product as it detects what is connected, but it doesn't detect Android device and just provide minimal 0.5A for them. Do you have any recommendation? So far I used
iXCC ® Quad USB 30W 6.2A Black High Capacity FAST AC Charging Station 4 Port High Speed Charger
iXCC ® Dual USB 20W 4.2A Black High Capacity FAST AC Travel Wall Charger for iPhone and iPad
And only got 0.5A for my Nexus7 FHD and Galaxy Note.
Tea

teatimest said:
I lost my original N7 2.0A charger. I've tried several of those high power USB chargers but non of them supported Android charging more than 0.5A. It seems that they designed for Apple products. It will deliver full power for Apple product as it detects what is connected, but it doesn't detect Android device and just provide minimal 0.5A for them. Do you have any recommendation? So far I used
iXCC ® Quad USB 30W 6.2A Black High Capacity FAST AC Charging Station 4 Port High Speed Charger
iXCC ® Dual USB 20W 4.2A Black High Capacity FAST AC Travel Wall Charger for iPhone and iPad
And only got 0.5A for my Nexus7 FHD and Galaxy Note.
Tea
Click to expand...
Click to collapse
I use the Anker 25W 5 port adapter I bought on Amazon for $20 or so. There are 2 iPad 2.1A ports and both work great for my Nexus 7, plus I have a port for my Nexus 5 and my Pebble. Life is good.
Amazon link to the Anker adapter

teatimest said:
I lost my original N7 2.0A charger. I've tried several of those high power USB chargers but non of them supported Android charging more than 0.5A. It seems that they designed for Apple products. It will deliver full power for Apple product as it detects what is connected, but it doesn't detect Android device and just provide minimal 0.5A for them. Do you have any recommendation? So far I used
iXCC ® Quad USB 30W 6.2A Black High Capacity FAST AC Charging Station 4 Port High Speed Charger
iXCC ® Dual USB 20W 4.2A Black High Capacity FAST AC Travel Wall Charger for iPhone and iPad
And only got 0.5A for my Nexus7 FHD and Galaxy Note.
Click to expand...
Click to collapse
Look for generic chargers: Walmart, Target, and overseas online retailers like DealExtreme and Meritline. There are some that put out a full 2A, no matter the device connected.

Great! Ordered that Anker charger now.
Sent from my Nexus 7 using xda app-developers app

teatimest said:
Great! Ordered that Anker charger now.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yeah, I was about to recommend their new 40W 5-port version, a monster!!! I reviewed a ton of different chargers (just scroll down my review section to Chargers: http://forum.xda-developers.com/showthread.php?t=2192333), including both 25W and 40W. Would highly recommend 40W instead, sources 8A of current and 5 smart ports independent of apple or android which can provide 2.4A from each port to charge even the latest iPad.

That 40w unit seems great. I should return 25w and get that instead.
Sent from my Nexus 7 using xda app-developers app

charging galaxy note 10.1 n8000
Hey there. I bought the anker 40w charger(updated) and somehow my galaxy note 10.1 would not charge at max A. I only get an average of 700mA. Sometimes just above 500mA. So I'm just wondering if its just me or did you see similar result with your nexus. Kinda dissapointed that it doesn't charge at full. Using the 2.1A charger that came with my note, I can get up to 1.2A. Or more.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Good Wireless Charger?

Has anyone found a good, reliable wireless charger for their G7 yet? (My cheap $15 charging stand isn't cutting it and I'm about to whip it against the wall).

I've been using this one by Anker, charging it overnight. Takes about 2 hours to fully charge from about 30% to 100%
No issues with it yet but only have had it about 2 weeks now.
https://www.amazon.com/gp/product/B0753Z4PGC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Mikestony said:
I've been using this one by Anker, charging it overnight. Takes about 2 hours to fully charge from about 30% to 100%
No issues with it yet but only have had it about 2 weeks now.
https://www.amazon.com/gp/product/B0753Z4PGC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
Click to expand...
Click to collapse
Thanks! I have about 4 older Samsung charging pucks. What's strange is that two work fine, but the other two don't charge my G7 at all. (I'm sure it has something to do with the USB cable and/or plug that I'm using).

Issemann said:
Thanks! I have about 4 older Samsung charging pucks. What's strange is that two work fine, but the other two don't charge my G7 at all. (I'm sure it has something to do with the USB cable and/or plug that I'm using).
Click to expand...
Click to collapse
Bear in mind that you have to use the supplied cable, along with your o.e. charger for the Anker stand. The port on the back of the stand is a micro usb, not a usb-c.

I've been using one like this one for years no issues and good brand..
I have the older model but I see this one with same specs
https://www.amazon.com/Wireless-Charger-CHOETECH-Position-Charging/dp/B078HV3V6M
Also found this one..
7.99 with promo code DT2XNIU7, down from $12.95
It has another 5% off clip coupon
https://www.amazon.com/CHOETECH-Wireless-Certified-Anti-Slip-Qi-Enabled/dp/B00C40OG22
LG G7

LG G7 FAST CHARGING COMPATIBILITY
Trust Primo10

I use a few of these throughout the house. Nice to have by the computer or sofa
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
http://naztech.com/index.php?route=product/product&path=370&product_id=639

G7 will say fast charging on a 10W wireless charger but LG says the phone supports 15W for true fast charging. Belkin and a handful of others make true 15W fast wireless chargers.
Watch out for off brands as many will say 15w but are actually 10w.
Im using a mophie here and it says fast wireless charging at 10w.
Sent from my LM-G710 using Tapatalk

Mikestony said:
I've been using this one by Anker, charging it overnight. Takes about 2 hours to fully charge from about 30% to 100%
No issues with it yet but only have had it about 2 weeks now.
https://www.amazon.com/gp/product/B0753Z4PGC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
Click to expand...
Click to collapse
Good call on this charger. I picked it up on your recommendation after seeing the price before I even owned this phone and I can confirm it works great. Anker makes solid products so the price makes it even better. Thanks!

Another vote for the Anker Charger
I've been using the Anker model A2523 wireless charger with no problems. It doesn't charge super fast, but I use it for overnight charging, so that's not a problem. While charging, the battery never goes above 30 degrees centigrade, which is 2 to 4 degrees cooler that when I was using the original LG plug in charger that came with the phone! The Anker uses a Micro USB port for power, so I also got a USB-C to Micro USB adapter, so that if I need to recharge quickly, I can just unplug the LG charging cable from the adapter which is plugged into the back of the Anker charger and plug it into the phone. I think that's the best solution until more USB-C wireless chargers are produced.

Alcolawl said:
Good call on this charger. I picked it up on your recommendation after seeing the price before I even owned this phone and I can confirm it works great. Anker makes solid products so the price makes it even better. Thanks!
Click to expand...
Click to collapse
Does it show as fast charging with this charger?

Jayman007 said:
Does it show as fast charging with this charger?
Click to expand...
Click to collapse
No, it just states it's charging wirelessly. It's not too fast but perfect for overnight without roasting the phone or battery.

just got the UMIDIGI Q1 , and it says fast wireless charging.
Have some others scattered around the house that is 5w, like choetech t513

I have quite a few Anker products, so when I was looking for a bedside wireless charger, I was almost sure I would end up with them. However, after researching on Amazon for about an hour, I ended up buying the Yootech Wireless Charger (the goofy company name made me think that it might be a cheap rebrand, but it's been a rock solid device). I can say for the LG G7 that this is an amazing charger (although it supports a wide range if you or someone else might want to use it with a different device; especially an older one) that comes with an impressive AC adapter (it doesn't get warm while in use, something that sometimes happens with more compact adapters). It does use MicroUSB instead of USB-C and maxes out at 10W instead of 15W, however it tops up my phone from 20 - 30% to 100% in less than two hours so it's a keeper for me and allows me to save my included charger specifically for travel.

I got the BlitzWolf BW-FWC4 from Amazon for €15. Fast wireless charging thanks to QI-EPP compatibility. Works flawlessly through my Voia case. Charges almost as fast as wired. I'm using the original wall charger to power it.

got the nillkin 15w qi powerflash. Fast charging works and cooler than UMIDIGI Q1 thanks to buil in fan.

mangoman said:
got the nillkin 15w qi powerflash. Fast charging works and cooler than UMIDIGI Q1 thanks to buil in fan.
Click to expand...
Click to collapse
Hey, what are the charging speeds on the Nillkin? Does it charge as fast as the UMIDIGI ? Their description does not mention fast charging for LG so was wondering.

viralbug said:
Hey, what are the charging speeds on the Nillkin? Does it charge as fast as the UMIDIGI ? Their description does not mention fast charging for LG so was wondering.
Click to expand...
Click to collapse
not noticed a difference