Database Users

No USB Charging?

So this is the first tablet\phone I've ever had that doesn't charge off the USB cable. Is there something I'm doing wrong or a wrong setting? I really don't want to carry the power brick when I travel.
Also, is there a way to disable the Kies so it doesn't make me press home every time I plug it in?

Xoom doesn't charge over USB either. Apparently the battery is to large and USB power to weak.

I've tried numerous computers and other USB power bricks and the only thing that seems to charge the tablet was the (rather huge) power brick that Samsung packed in the box.

yay pie said:
I've tried numerous computers and other USB power bricks and the only thing that seems to charge the tablet was the (rather huge) power brick that Samsung packed in the box.
Click to expand...
Click to collapse
yeah I've tried ipad brick, kindle brick, etc. Not sure why they went so proprietary

I think most of these new tablets dont do usb charging. My xoom as well as my coworker's Asus Transformer doesn't do USB charging either.
The USB port doesnt provide enough juice to charge the device.

mystified said:
I think most of these new tablets dont do usb charging. My xoom as well as my coworker's Asus Transformer doesn't do USB charging either.
The USB port doesnt provide enough juice to charge the device.
Click to expand...
Click to collapse
It's a myth about usb ports not providing enough power. It's up to the device to either accept a trickle charge, or require the full power of the brick. Devices like iPad and iPad 2 are set to accept a slower charge. It's a poor customer experience to disallow charging from the laptop, because many people like me don't like to carry multiple power bricks when traveling.

you can charge it if you turn it off

I used this for my iPad 1 on Windows 7 and it also works for my 10.1 I/O. It doesn't say that it is charging but if u look at the battery chart u will see it charging while its on.
http://event.asus.com/mb/2010/ai_charger/
Sent from G2x

What is the voltage of the charger that comes with the 10.1"?
I know when I got my 7" Tab I purchased a higher voltage but standard nonetheless 2.1v USB charger which worked fine.
If the voltage is the same we should be able to use the small charger that comes with the 7" Tab (and cables as the pin connector I believe is the same).

Beards said:
What is the voltage of the charger that comes with the 10.1"?
I know when I got my 7" Tab I purchased a higher voltage but standard nonetheless 2.1v USB charger which worked fine.
If the voltage is the same we should be able to use the small charger that comes with the 7" Tab (and cables as the pin connector I believe is the same).
Click to expand...
Click to collapse
I can't see the difference between the Tab and the Tab 10.1 LE chargers. It's the same travel adapter and I have been using the original one for charging with the original cable.

cosimoss said:
I can't see the difference between the Tab and the Tab 10.1 LE chargers. It's the same travel adapter and I have been using the original one for charging with the original cable.
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I thought as much.... Well that will save me having to purchase any additional power hardware items.

My Google I/O powers up, albeit slowly, over USB. Just a shame the USB cable connects to the Tab via the proprietary 30pin connection...

NZtechfreak said:
My Google I/O powers up, albeit slowly, over USB. Just a shame the USB cable connects to the Tab via the proprietary 30pin connection...
Click to expand...
Click to collapse
It does indicate that it is charging when it's switched off. I haven't bothered to see how long it takes.

I find this insane. I got a IO Tab from eBay and received it today and it is awesome except for the fact that I now have to go buy a US-UK adaptor for the charger as it doesn't work with any of my existing USB chargers including the iPad charger or charge from PC/Mac.
I also have the top right hand corner glass lifting up annoyingly which Engadget reported on. I have taped that corner up and will get it sorted under warranty when its officially out I hope.

I have seen a USB adapter in Amazon which says it will connect the USB with any charger. I ordered one and will hopefully see soon if with this small item I can use my car adapter and the one from Nikon, Nokia, and and and

USB charger from smaller Galaxy tab works. You can order them on amazon.com or ebay.
Just to confirm, Tab charges over USB when the screen is set to off.
But I agress, USB socket sucks.

fscherz said:
I have seen a USB adapter in Amazon which says it will connect the USB with any charger. I ordered one and will hopefully see soon if with this small item I can use my car adapter and the one from Nikon, Nokia, and and and
Click to expand...
Click to collapse
I bought an adapter off eBay that was quoted as being for the P1000. It works just fine on the 10.1v charging off USB, even when the screen is on. It charges quite quickly too.
It is a small USB cable that has a switch that allows you to put the cable in data or charge mode. I found that I had to disconnect the cable prior to switching modes for it to play nice however.

mystified said:
I think most of these new tablets dont do usb charging. My xoom as well as my coworker's Asus Transformer doesn't do USB charging either.
The USB port doesnt provide enough juice to charge the device.
Click to expand...
Click to collapse
Actually the Asus Transformer does do usb charging in sleep mode. Little known feature although it says so on the quick guide slip you get in the box....

Yes it does charge, but only when the device is powered off, or the screen is powered off (sleep)
It won't charge over an apple connector, because they aren't keeping to the standard at all (as usuall) Samsung is also using a slightly altered version of the connector, but the charger, audio channels en video channels are in the right place
Just google/wiki on the 30-pins connector schematics
Sent from my GT-P7100 using XDA Premium App

[Q] Is usb charging supported on acer iconia a500 tab

Hi,
can my acer iconia be charged via the usb?

No it cannot be charged via USB.
Sent from my A500 using Tapatalk

Most of the tablets can't be charged over USB - the A/C charger for the Acer is a 12v and I think (don't have mine with me at the moment) over 1 amp; even USB 3.0 only puts out 5v and maxes at 1a.
Having said that, it'd be nice if they could take a trickle charge over the USB input to reduce the battery drain, even if it can't fully charge the battery.

If anyone here also owns a Nook Color you may have noticed that it won't charge over USB either, and in fact even requires a custom "USB" cable attached to their power adapter for charging. Their cable looks like a regular USB cable but it is not.
The screens and batteries are just too big to support the tiny amount of power USB is designed to provide.

Nope, no charging over USB. It has to do with the amount of charge needed to charge the device and USB is unable go generate the needed power.
Sent from my A500 using XDA Premium App

cybermage1 said:
If anyone here also owns a Nook Color you may have noticed that it won't charge over USB either, and in fact even requires a custom "USB" cable attached to their power adapter for charging. Their cable looks like a regular USB cable but it is not.
Click to expand...
Click to collapse
The Nook Color does in fact charge over USB. I do it all the time. The only time it needs the AC power adapter is if it next to dead, and you get the "Battery too low to power on". Also, the AC adapter, even though it outputs via MicroUSB, will NOT charge other devices as it doesn't fit exactly for some reason.

martyxng said:
The Nook Color does in fact charge over USB. I do it all the time. The only time it needs the AC power adapter is if it next to dead, and you get the "Battery too low to power on". Also, the AC adapter, even though it outputs via MicroUSB, will NOT charge other devices as it doesn't fit exactly for some reason.
Click to expand...
Click to collapse
My (retired) 1st gen Sony eReader was like that also, USB charge didn't work once the batt level got too low

NO
Like stated before almost no tablet charges over usb. and like one poster pointed out not even the nook color charges over usb I have one as well.
One poster says the nook does charge but you have to define chargeing. on wall power it charges full in like less then an hour. plugged into usb and only if its off or in sleep with no wifi running it will chrge but it will take all night. so for all purposes it dosent usb charge.
I dont know about other tablets but the iconia has TWO internal batteries(read your box see the little x2 next to the batteries) and most likely why it wont charge over usb.
To tell the truth I have not really understood the hang up on the usb charging or the short cord for the iconia. usually I charge mine when im done with it or not using it so cord length means nothing. and as far as usb charging, usb charging on anything is harder on the battieres. and most likely why alot of companies dont do it.
The whole idea is to be prtable who wants to be teathered to the wall with a charger 4 foot or 6 foot really whats the difference?
side note: the person who said the nook color cord was special? its just a standard mini usb just like on portable hard drives nothing special about it. i lost mine and just used the one from my hard drive worked just fine.

harlaquin said:
To tell the truth I have not really understood the hang up on the usb charging or the short cord for the iconia. usually I charge mine when im done with it or not using it so cord length means nothing. and as far as usb charging, usb charging on anything is harder on the batteries. and most likely why alot of companies don't do it.
Click to expand...
Click to collapse
I think the point with USB charging is it one less adapter you have to carry... if everyting supported the same port type it would make life much easier the the micro USB has been a nice solution for phones

texas-saluki said:
I think the point with USB charging is it one less adapter you have to carry... if everyting supported the same port type it would make life much easier the the micro USB has been a nice solution for phones
Click to expand...
Click to collapse
That would be great. Maybe someday they will design a transport port and technology allowing a single port to both be intelligent enough to transport files to/from a computer as well as charge these devices.
For now, as others have said - the batteries in the A500 take too much juice to be charged through the USB port. Imagine having to charge your tablet for 48 hrs? Or worse, while it's charging you pick it up to check a website and even while charging it just starts draining because the batteries are juicing out faster than they can be charged?
It just wouldn't work.

harlaquin said:
To tell the truth I have not really understood the hang up on the usb charging or the short cord for the iconia. usually I charge mine when im done with it or not using it so cord length means nothing. and as far as usb charging, usb charging on anything is harder on the battieres. and most likely why alot of companies dont do it.
Click to expand...
Click to collapse
I'm traveling to Germany in a few weeks. I have an adapter for my Dell Laptop to deal with the Power over there. The ability to charge my tablet, phone, and any other devices from my laptop would be awesome. If I wish to take my tablet, I'll need to buy another adapter / power converter that I'll hardly ever use. I often travel within the US for business, and carrying one less power adapter would be nice.
Sometimes My kids steal my tablet and use up all the battery, or I simply forget to plug it in... then I go to use it, and it's near dead. With the ridiculously short cord I cant use it while it charges unless I want to sit on the floor next to an electrical outlet or use an extension cord. And of course of the 50 or so power bricks I have.. none match..
While these things are slightly inconvenient.. It's not a show stopper. I love my Iconia.

I think people are used to their android phones, where (for me at least), my habit is to sit down and plug in the usb. It's just easy to keep it charged that way.
I found this neat device though, I think someone called it an extension cord or something? It really solved my problems of the short cord. I bet the guy who invented that is a millionaire.
(Seriously, they could have made the cord longer, just so you could sit the tab on a table and not be stretching, but $2 at Home Depot fixed the issue real quick).

xjestersdeadx said:
I think people are used to their android phones, where (for me at least), my habit is to sit down and plug in the usb. It's just easy to keep it charged that way.
I found this neat device though, I think someone called it an extension cord or something? It really solved my problems of the short cord. I bet the guy who invented that is a millionaire.
(Seriously, they could have made the cord longer, just so you could sit the tab on a table and not be stretching, but $2 at Home Depot fixed the issue real quick).
Click to expand...
Click to collapse
I had to return my first Iconia due to the stinkin to short power cord and when I picked it up it ripped the center pin out with it.... poor thinking acer!
I have almost done it again several times... tomorrow I am making my own car adapter and extending the charger cord myself...

halfevildruid said:
and extending the charger cord myself...
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Click to collapse
Extending the cable isn't really all that difficult, just cut the cable in two, rip the insulating layer from both ends, add some extra cable in-between and voila! You've got yourself a longer charging cable

WereCatf said:
Extending the cable isn't really all that difficult, just cut the cable in two, rip the insulating layer from both ends, add some extra cable in-between and voila! You've got yourself a longer charging cable
Click to expand...
Click to collapse
Yep, that would definitely do the job but what about electrical resistance or conductance may be depending on the material, diameter of the wire, legth, temperature ... sorry, I'm not an electrician or an engineer but I think one shouldn't do such "grafting" with such sensitive electronic equipment...

Solution
What you ought to make is a 5V to 12V little box that you plug into TWO (or more) USB ports and draw power off both. It would be pretty small, you could probably put it inline. I have a hard drive case that draws power from two USB ports. One is power only, other is power and data. It Y's into a mini USB from two full size USB.
THAT'S what tablet makers ought to use. 1A at 5V is 5 watts, which is about 420mA @ 12 Volts which would probably let you charge when off at least on a tablet. Assuming no loss of course, but I bet you could still get 400mA effective.

x51 said:
I'm traveling to Germany in a few weeks. I have an adapter for my Dell Laptop to deal with the Power over there. The ability to charge my tablet, phone, and any other devices from my laptop would be awesome. If I wish to take my tablet, I'll need to buy another adapter / power converter that I'll hardly ever use. I often travel within the US for business, and carrying one less power adapter would be nice.
Click to expand...
Click to collapse
i dont know if you've already made your trip to Germany or not, but as far as your Acer is concerned, all you need is a $0.30 US to German plug adapter. the brick from the iconia can already handle 110-240v. actually, most laptops and such's (even desktops) power supplies handle up to 240v due to people traveling with them. you dont need to worry about getting a special converter. this is coming from someone who's lived in Germany for 2 years, Bosnia for 7 months, and Iraq for 12 months. just look at the power supply and find the voltage on there and if it says 110-240v you're good. if its like 110-120v then you will need the power converter. lost a PlayStation 1 back in 1999 that way because I didnt check.

theroblog.com said:
What you ought to make is a 5V to 12V little box that you plug into TWO (or more) USB ports and draw power off both. It would be pretty small, you could probably put it inline. I have a hard drive case that draws power from two USB ports. One is power only, other is power and data. It Y's into a mini USB from two full size USB.
THAT'S what tablet makers ought to use. 1A at 5V is 5 watts, which is about 420mA @ 12 Volts which would probably let you charge when off at least on a tablet. Assuming no loss of course, but I bet you could still get 400mA effective.
Click to expand...
Click to collapse
I like your thinking! (As oppose to all the nay-sayers who accepts defeat so readily...)
Another thing we should consider: many USB ports (even USB 2.0) will provide more power than the specification calls for - my motherboard puts out 1,500mAh on multiple ports, and my laptop has a dedicated "phone charging port" that puts out 1,000 mAh. Some travel adapter also has a USB charging port that puts out more than 500mAh. I know this is not the norm but is becoming a trend. So, for the lucky few who has a high-power USB port, charging the tablet via USB is entirely feasible. In fact, even with standard USB port, it can be done, just not "well".
If you don't believe me, do the math yourself - the Iconia has 2x 3.26Ah battery. At 3.7v, that is about 24 watt. For 2x USB at 500mAh, you get about 5 W/hr of juice. At no-loss, the tablet would be charged in less than 5 hours. Even if we assume 30% loss (typical), it will still be less than 7 hour to fully charge the tablet - aka one night of sleep. And it only gets better if your laptop puts out more power on the USB ports.
I would much rather have 1 power adapter for my laptop, and then plug all my phone/tablet/wifi-hotspot into the laptop... as oppose to lugging around 4 different power bricks. Plus, for those of you who travel a lot, you will know this... hotels never have enough power outlets! I have to start bringing my own powerstrip these days because if there are two of us sharing a room, we'd frequently have to pull out the TV cabinet and unplug the TV, or charge the phones in the bathroom...
So, any chance we can put this in action? And instead of waiting for tablet manufacturers to get their acts together, how many of you would actually pay for a "2x-USB-to-12v" adapter cable that is smaller/lighter than the Iconia wall brick but can charge your tablet overnight via laptop? If there is enough interest, I wonder if we could get a Kickstarter project going for this...
W.

Jumping in here a little late, but it's not true that no tablets can be charged via USB. My Samsung Galaxy Tab can be charged over USB. Mine is the 7" model, no idea about its 10" big brother.

HP TouchPad 16GB also takes charge from USB slow but still charges.
on the other hand my Acer A500 does not!

Power Cord...

Well, I'll need to ask this question: do any of you guys know if Acer is going to bless us with a USB to proprietary connector for our Iconias?
Look, I've accepted the length of the power cord. One, it is what it is and two I can always go and buy an after market adapter which could be longer. Fine. What is unforgivable, to me, is that I need an AC plug and I can't use the myriad (at least three) AC to USB plugs that I have to charge my unit. Heck, I can even use my wife's iPad adapter to charge my EVO in a pinch.
It can be done as I assume that the docking station Acer sells can charge the unit. Besides if Sammy, Toshiba and Asus have similar things why can't Acer? If they come up with something like this they'll (to me) boost the value of my Iconia a bit: I can use USB and the other adapter to charge it.
C'mon Acer: get in gear!

I'm not 100% sure I understand the question, but I'll take a stab anyway.
It is impossible to charge through USB to the A500, either through the USB ports or the dock connector. USB only has a 5v signal on it, and I believe it's max current capacity is 500ma (per standard), whereas the A500 needs 12v and 1.5a of current.
Does that help?

USB 2.0 standard allows maximum output of 1.5 amperes, or 1.8 amps on a dedicated charge port with a special cable (e.g. cannot carry data but can only charge, I have never seen one by the way) at 5 volts. These 1.5 and 1.8 amps are for USB chargers by the way, computer USB 2 ports are all rated to a max. of 0.5 amps.
A500 needs 1.5 amps at 12 volts, which is roughly 2 times more current than the usb standard (Watts = Voltage x Amps), e.g. acer power brick supplies 18 watts vs a dedicated USB charger can only supply 9 watts at 1.5 amps. Most of the phone chargers that use USB cables are around 1 amp, making their max. output 5 watts vs 18 that acer needs.
In summary, it is not possible to charge A500 via USB.

No, no, no....
I think I explained myself poorly.
You guys know that the on the bottom of the Iconia there's a connector; a proprietary connector. I assume that the unit can be recharged through there. So what I was saying is that there should be a cable that ends in that proprietary connector on one side, and on the other on a standard USB connector so that it can be charged. Very much like the iPad or the Samsung Galaxy.
I should have mentioned the word 'proprietary'

citizenklaw said:
I think I explained myself poorly.
You guys know that the on the bottom of the Iconia there's a connector; a proprietary connector. I assume that the unit can be recharged through there. So what I was saying is that there should be a cable that ends in that proprietary connector on one side, and on the other on a standard USB connector so that it can be charged. Very much like the iPad or the Samsung Galaxy.
I should have mentioned the word 'proprietary'
Click to expand...
Click to collapse
If I had read your original post carefully I would have noticed that
That would work if they made a 5 volt, 4 amp charger with removable usb cable on the charger end as you suggested, and we would be able to use that charger for everything else as well.

Well...
I'm keeping my fingers crossed.

Not to rain on your wishing parade, but it wouldn't work, even with the dock connector adapter. The batteries in these tablets are 7.3 volt Li-Po packs(I think thats the voltage at least) so they require at least 9 volts to charge them. Thats why the docks that Acer makes for these use the same power supply as the tablets themselves. Without high enough voltage, it wouldn't charge. I guess you could make a charger that would plug into the connector on the bottom, but you would end up having to use the same old power supply to get it to do anything. Conceivably you could make a double USB plug on the other end wired in series, that would bump it to 10 volts/500 ma and it would work as a trickle charger of sorts.

Compatible chargers

Anyone else have any experiences they'd like to share using non-OEM chargers?
I use my HP TouchPad charger in my living room, as my HP Touchstone plugs into it usually. It charges the N7 at exactly the same rate as the OEM charger.
Just curious about others' experiences.
Oh....and is anyone else w/the HP TouchPad just completely spoiled regarding tablet prices? $250 seemed like a lot of money to pay, LOL.

http://saraoutlet.com/yxt-023-us-2-...for-apple-ipad-iphone-4g-3gs-white-35561.html
I use this, it charges my iphone, ipad, ipod touch, samsung, and now my nexus. I have one for the car as well that is 1A/2.1A.

the blackberry playbook 1.8a charger works really well. indistinguishable from the supplied OEM. available for $16 bucks or so in retail packaging.

I've used the same charger for my Galaxy SII. Seemed to do the job well and just as quickly!

I have a few blackberry chargers one is a playbook one and some other android chargers.. they all work just fine.

I'd love to know if there are any portable chargers that will charge the Nexus 7 without being plugged into the wall, so, I can charge it when I'm laying in bed or something, I have portable USB chargers that I don't thing would work with the 7 The Duracell Powerhouse USB charger and the Sony Media CP-ELS USB Portable Charger with 2,000 mAh Li-Ion Battery, I use them interchangeably with my iPhone 4S and Playstation Vita.

Okay, I went through my "wall wart" drawer and tried 8 chargers and 9 cables. I can't find any pattern to the results
There was one cable (skinny black generic USB) that didn't work with charger, and one charger (from a Kingston Wi-Drive) that wouldn't work with any cable.
The best cable was a white mini-usb (that I used with a mini-micro dongle) that had come with my generic 5000 mAH backup battery; it worked with *everything* except the Wi-Drive charger. The best chargers were the OEM ASUS charger, and a generic small black cube (1A) labelled "KIN"; those worked with every cable except the skinny black dud.
The worst of the working chargers were an "Innergie" dual laptop/USB power supply, and the generic battery backup. Those only worked with that white cable.
Honorable mentions go to an old Motorola RAZR charger (used with a mini-micro dongle) and a small Samsung phone charger. Those have permanent cables, and both worked.
I couldn't pick up any pattern in terms of amp rating (obviously, the lower amp chargers will take longer). It seems to be "luck of the draw".

I've tried probably 4-5 different chargers including a Motorola wall charger plugged in the wall, and also plugged into a power inverter in my truck, a motorola car charger and an oem wall charger and have no issues with any of them.

iPad 3 charger compatibility
Can anyone confirm if N7 charges using the new iPad 10W charger? Mine only supports the charger that came with it. Does that mean that the usb port is broken and I need to replace it or is it the way all the units behave?

Other XDA threads with similar topic:
http://forum.xda-developers.com/showthread.php?t=1780211
http://forum.xda-developers.com/showthread.php?t=1781680
http://forum.xda-developers.com/showthread.php?t=1784322

dmalovic said:
Can anyone confirm if N7 charges using the new iPad 10W charger? Mine only supports the charger that came with it. Does that mean that the usb port is broken and I need to replace it or is it the way all the units behave?
Click to expand...
Click to collapse
It charges using my iPad2 charger, which I think is the same charger as the new iPad?

The Nexus 7 does not show charging when plugged into any of my OEM/aftermarket Apple chargers.
It does not appear to matter whether I use the USB cable supplied by Asus, or a standard commodity micro USB cable.
There is evidence from other users that the tablet may be charging at the 1A rate even though the charge indicator stays off.
I have not personally confirmed this yet.

Im using the charger of my BlackBerry playbook! 5volts 2amp!
From 0% to 100% in less than 3 hours!
Sent from my Nexus 7

I bought 10 of the HP Touchpad chargers for $5 shipped a few weeks ago. They work perfect for the Nexus 7, same plug, 2AH charging..
I think you can still find them for $5 shipped @ hp.com

All my micro USB chargers work , from Nokia to BlackBerry to HTC all fab all charge the n7 OK
Sent from my Nexus 7 using xda premium

martyg7 said:
The Nexus 7 does not show charging when plugged into any of my OEM/aftermarket Apple chargers.
It does not appear to matter whether I use the USB cable supplied by Asus, or a standard commodity micro USB cable.
There is evidence from other users that the tablet may be charging at the 1A rate even though the charge indicator stays off.
I have not personally confirmed this yet.
Click to expand...
Click to collapse
I've had one of those OEM/aftermarket Apple charges blow up on me (not shrapnel, it stayed in the plastic casing), so I wouldn't expect much from those anyway. Have you tried with any standard micro USB phone charger?

Chargers that work:
- Motorola Droid Pro (hard-wired micro USB). Rated at 800 mA but seems to charge almost as fast as the OEM.
- Kin One (Uses any USB cable). Rated at 1A, works with every USB cable I have (almost; there were a couple that didn't work with anything). These are available on-line for less than 10 bucks:
http://www.amazon.com/Sharp-Standard-Wall-Charger-CNR1002/dp/B005IY428Y
http://www.aftermarketcellular.com/ic/CNR1002.html
This is nice and compact; I'm going to order a couple of more to have as spares.
- Motoroloa RAZR (hard-wired mini-USB, used with mini-to-micro adapter). Rated at 500 mA. Works, but probably pretty slow.
- Samsung (from unknown phone; hard-wired micro-USB) rated at 750 mA. Didn't test charge time.
As an aside, I have a 5000 mAh backup battery that I've used with phones and my Nook color (http://www.amazon.com/5000mAh-External-Motorola-Blackberry-Nintendo/dp/B004P8E612). It works with the Nexus, but ONLY with the mini-USB cable that the Power Bank shipped with. Every other cable I've tried chokes. It's intended for an iPhone and puts 6.5V across the power pins (with no load; this is about the same as the Kin) and pulls the data pins to 3.4V. What's weird is that I can connect a 2-conductor (charge only) extension in series with the working cable, so that the data signal never reaches the Nexus. If I use a 2-conductor cable by itself, the Nexus doesn't charge.

tjupille said:
Chargers that work:
Click to expand...
Click to collapse
When you say they work, are they showing as AC charging when you use them or are they just charging.
Go-to battery stats and it will say either
Charging (USB)
Or
Charging (AC)
Sent from my Nexus 7

Compatable car charger
It's really disappointing to know N7 is so picky about chargers. Can anyone report on a working small/short car USB charger that is compatible?

You might want to check that your vehicle can provide 2amps from its cigarette lighter plug. Normal only utility plugs can do that.
Sent from my Nexus 7

Sync - charge cable

Anyone else surprised at how thick the Sync - charge cable is compared to the GT-N8000 series cable.
Does anyone know where to get a spare just like it except in black at a reasonable price?
.

kkretch said:
Anyone else surprised at how thick the Sync - charge cable is compared to the GT-N8000 series cable.
Does anyone know where to get a spare just like it except in black at a reasonable price?
.
Click to expand...
Click to collapse
Not really. The cable for my S4 is pretty much exactly the same. The charger for my S4 has the highest current output of any of my chargers and I put the size of the cable down to a need for low resistance so the tablet can benefit fully from the high current.

i did a big ole test with various chargers and cables with different devices and found this cable:http://www.monoprice.com/Product/?c_id=103&cp_id=10303&cs_id=1030307&p_id=5459&seq=1&format=2 to be just as good as the stock cable on the stock charger according to kill-a-watt. the s4 and gnote 8 cable only pulled 10W while the monoprice and gn 10.1 2014 pulled 11W.

madsquabbles said:
i did a big ole test with various chargers and cables with different devices and found this cable:http://www.monoprice.com/Product/?c_id=103&cp_id=10303&cs_id=1030307&p_id=5459&seq=1&format=2 to be just as good as the stock cable on the stock charger according to kill-a-watt. the s4 and gnote 8 cable only pulled 10W while the monoprice and gn 10.1 2014 pulled 11W.
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Odd that you had any kind of real world success with those cables. I have used Monoprice cables for years and love them, but I have several of those same cables in lengths from 3-15 feet and every one of them charges at half the rate or less of the stock cable. I normally get >1000 mAmp with the stock charger and cable, but only get ~500-750 mAmp with stock charger and any of my Monoprice cables I wish they charged at the same mAmp rate b/c I like having a longer charging cable. Has anyone else had this issue or found a 6 to 10 foot cable that still charges at the same mAmp rate of the stock cable?

If you double the length of a cable, you double its resistance. It's not possible for a longer cable to pass as much current unless it is proportionally thicker. The stock cable is both short and thick; that is why it works so well.

mollybc said:
Odd that you had any kind of real world success with those cables. I have used Monoprice cables for years and love them, but I have several of those same cables in lengths from 3-15 feet and every one of them charges at half the rate or less of the stock cable. I normally get >1000 mAmp with the stock charger and cable, but only get ~500-750 mAmp with stock charger and any of my Monoprice cables I wish they charged at the same mAmp rate b/c I like having a longer charging cable. Has anyone else had this issue or found a 6 to 10 foot cable that still charges at the same mAmp rate of the stock cable?
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I was surprised myself. I have a lot of the six feet monoprice (or 5) and none of those pulled as much wattage. I was actually trying to see which workedmwith my t100 and found that the t100 3 footer and gn101 2014 and the monoprice 10footer were the only ones that pulled 11 watts. the 5 pulled only 8watts.
if I have time tomorrow I'll redo all my tests with various chargers and devices and list the killawatt results. I dont know how much current actually gets to the device, only whats being pulled from the wall. the charge percent per hour reported by bmw pro seems to show they equal though from a small sample.

Is it bad to use the note charger to charge my s3?
Sent from my SPH-L710 using xda app-developers app

johnny tsunami said:
Is it bad to use the note charger to charge my s3?
Sent from my SPH-L710 using xda app-developers app
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Not at all. Any charger should work; the only difference between chargers is their maximum current output but the device determines what current it draws so there isn't any risk in using a charger with a higher maximum current than the supplied charger.

i was corrected when i stated the same. the output of the gn10.1 charger is 5.3v while most others are 5v. it may not be enough difference to cause any harm, but be aware that there may be a chance of damage over time. the voltage will be constant, but the amperage is what is controlled by what the phone requests.
that said, i haven't had any problems with my s4, t100, gn8 or gn2 yet.

madsquabbles said:
I was surprised myself. I have a lot of the six feet monoprice (or 5) and none of those pulled as much wattage. I was actually trying to see which workedmwith my t100 and found that the t100 3 footer and gn101 2014 and the monoprice 10footer were the only ones that pulled 11 watts. the 5 pulled only 8watts.
if I have time tomorrow I'll redo all my tests with various chargers and devices and list the killawatt results. I dont know how much current actually gets to the device, only whats being pulled from the wall. the charge percent per hour reported by bmw pro seems to show they equal though from a small sample.
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Any results from the monoprice cables? I need a few new cables as half of mine decided to go bad all at once
Sent from my SCH-I545 using Tapatalk

ChrisNee1988 said:
Any results from the monoprice cables? I need a few new cables as half of mine decided to go bad all at once
Sent from my SCH-I545 using Tapatalk
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my tests would actually be inconclusive since the killawatt can only judge the amount of current that the charger is delivering and not the final amount that the device actually gets.
from a short test last night i found the actual amperage that the monoprice 10' ferrite core cable is arounf 1700mAh where the 3' stock is 1900mAh.
those results are from battery monitor widget pro. i'd consider it a good trade off for getting 7 extra feet. the 10' is only a few dimes more than the cheap 5' cables. for some reason the 5' wouldn't coax the charger to pull as much from the outlet as the 10' did.

madsquabbles said:
i was corrected when i stated the same. the output of the gn10.1 charger is 5.3v while most others are 5v. it may not be enough difference to cause any harm, but be aware that there may be a chance of damage over time. the voltage will be constant, but the amperage is what is controlled by what the phone requests.
that said, i haven't had any problems with my s4, t100, gn8 or gn2 yet.
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That's a fair point but I don't actually thinks it's an issue.
The USB 2.0 standard requires that the voltage be 5.0V ± 0.25V so the maximum voltage (which any USB compliant device should be able to cope with) is 5.25V. The Note charger is rated for the output at the charger not the cable since the cable is not an integral part of the unit. There will be a small voltage drop caused by the cable so the actual output at the phone will be within spec and therefore safe.