Related
I bought a couple of these several months ago from DealExtreme.com to use for other USB powered devices.
http://www.dealextreme.com/p/usb-re...emergency-power-with-cell-phones-holder-44749
For kicks and giggles, I was curious how much current the things really put out. I connected to my CM7 NC with the NC USB cable and did a dmesg | grep CHARGER
To my surprise, even though DealExtreme claims that these output 1A, the NC said it was receiving 2A! (see attached photo of screen).
When I used a standard Micro-USB cable, the current dropped down to 500mA.
I haven't yet done any sort of extensive testing to see what kind of life I get out of these. If the other specs are correct (a little dubious now), then having 2 of these, fully charged, would be like having an extra internal battery. Not bad for less than $13 ea.
Anyone know how accurate (or inaccurate) the output from the dmesg command is? Is the Nook misrepresenting what it says it's getting from the charger?
I suspect that what you're seeing on the screenshot is not the charging current but that it recognizes the plug type (B&N 2amp) or standard USB (500ma) that is actually plugged in. Nevertheless it still could be a handy gizmo to have around.
___________________
- Derek
derekr said:
I suspect that what you're seeing on the screenshot is not the charging current but that it recognizes the plug type (B&N 2amp) or standard USB (500ma) that is actually plugged in. Nevertheless it still could be a handy gizmo to have around.
___________________
- Derek
Click to expand...
Click to collapse
When I used a different model of External USB battery with the same B&N NC cable, it registered as 500mA, exactly as that particular model is rated. Though your thought is justifiably skeptical (and I'm an unrepentant skeptic myself), further evidence suggests there's more going on than just detecting the additonal pins in the B&N NC cable.
Jgrimoldy said:
When I used a different model of External USB battery with the same B&N NC cable, it registered as 500mA, exactly as that particular model is rated. Though your thought is justifiably skeptical (and I'm an unrepentant skeptic myself), further evidence suggests there's more going on than just detecting the additonal pins in the B&N NC cable.
Click to expand...
Click to collapse
I believe the standard microUSB cord has a resistor, or circuitry to limit the amperage to .5. The Nook Color has a charging cable with a higher amperage at 1.9, with a special connection so you cannot put it into another device and fry it. Most modern device have a way of limiting the input internally, but the the Nook's cable is unique on the device end to be safe.
If you would like to test this use a standard microUSB and plug it into the Nooks OME wall transformer and measure the amperage. in my tests it always comes out at .5 amps even though the output of the NC's transformer is 1.9 amps.
I use my muti-tester to avoid erroneous software data.
Certaily would like to test this portable charger you mention in your post, for $13 sounds good to me. This would be handy while I am away from wifi and I tether my Android phone to my Nook, the phone could be plugged into this charger, tethering can really burn battery down fast.
Thanks for the tip!
12paq said:
Certaily like to test this portable charger in you mention in your post, for $13 sounds good to me.
Click to expand...
Click to collapse
I'm going to order that aswell. Has anyone seen other nice accessoires for the Nook color on Dealextreme? Search only gave me a black pouch
tomic22 said:
I'm going to order that aswell. Has anyone seen other nice accessoires for the Nook color on Dealextreme? Search only gave me a black pouch
Click to expand...
Click to collapse
so funny, me too.
Also "CrazyinDigital" from Amazon Canada, even shipped to USA I got a nice Pleather case and a bunch of cables and the silicon cases are decent too. The bulid qualty of the cords is sketchy and the screen protectors don't fit, but I got all the above for $5.19 shipped to the US. I'd pay at least that for the USB cord. (Funny thing the cords say "for Kindle"... gotta laugh.
Back on topic, I might buy this back up charger, sounds good for my battery sucking Android Phone too..
12paq said:
I believe the standard microUSB cord has a resistor, or circuitry to limit the amperage to .5. .
Click to expand...
Click to collapse
Given that the USB battery charging specs give up to 1.8A, that doesn't make a whole lot of sense....
In Battery Charging Specification,[40] new powering modes are added to the USB specification. A host or hub Charging Downstream Port can supply a maximum of 1.5 A when communicating at low-bandwidth or full-bandwidth, a maximum of 900 mA when communicating at high-bandwidth, and as much current as the connector will safely handle when no communication is taking place; USB 2.0 standard-A connectors are rated at 1500 mA by default. A Dedicated Charging Port can supply a maximum of 1.8 A of current at 5.25 V. A portable device can draw up to 1.8 A from a Dedicated Charging Port. The Dedicated Charging Port shorts the D+ and D- pins with a resistance of at most 200 Ω. The short disables data transfer, but allows devices to detect the Dedicated Charging Port and allows very simple, high current chargers to be manufactured. The increased current (faster, 9 W charging) will occur once both the host/hub and devices support the new charging specification.
Click to expand...
Click to collapse
http://en.wikipedia.org/wiki/Universal_Serial_Bus
Divine_Madcat said:
Given that the USB battery charging specs give up to 1.8A, that doesn't make a whole lot of sense....
http://en.wikipedia.org/wiki/Universal_Serial_Bus
Click to expand...
Click to collapse
Yeah I might have .5 volts mixed up with amps.. I posted that late last night, dozing off.. lol. sorry for the any inaccuracies.
I did these tests a while back and should have recorded the data and not left them too memory.. and age.. lol.
I initiated theses tests becouse I found it took much longer to charge the Nook with a generic cord even if I plugged it in the Nooks wall transformer that has a higher output. it could just be my cords too.
My apologies if my careless quoting of data led anyone astray. Funny, I am usually a stickler about accurate data. ..
Lesson: Never quote data from memory late and after a glass of wine..
Thanks Madcat
12paq said:
I believe the standard microUSB cord has a resistor, or circuitry to limit the amperage to .5.
Click to expand...
Click to collapse
.... wat
12paq said:
If you would like to test this use a standard microUSB and plug it into the Nooks OME wall transformer and measure the amperage. in my tests it always comes out at .5 amps even though the output of the NC's transformer is 1.9 amps.
I use my muti-tester to avoid erroneous software data.
Click to expand...
Click to collapse
You should have plugged into your fingers. Stop making up nonsense.
Standard microUSB is, well, a standard. And that standard says 500mAh max current. The Nook Color cable is non standard and has 4 extra pins. These extra pins, as well as shorted data pins, tells the Nook Color it can draw 1.9Amps.
Found this external battery with good pricing. Anyone tried this? Does it work with NC?
monoprice.com/products/product.asp?c_id=108&cp_id=10833&cs_id=1083311&p_id=7664&seq=1&format=4#feedback
It certainly should work.
The connections are a little confusing. The male micro-USB coming off the top suggests that you need to connect it to your nook, which would make the whole thing a little unweildy. Also, how is it charged? From a PC? From a AC/USB adapter?
I bought a couple of these:
http://www.dealextreme.com/p/usb-re...emergency-power-with-cell-phones-holder-44749
They're only 2000 mAh, but you can connect them to the nook with the proprietary nook USB cable. Even though they're rated at 1A, my nook recognizes as 2A...
Bonus: built in fold up wall charger.
Not-so-bonus: DealExtreme ships from Hong Kong. Delivery time is measured using the geologic time scale.
ks88 said:
Found this external battery with good pricing. Anyone tried this? Does it work with NC?
monoprice.com/products/product.asp?c_id=108&cp_id=10833&cs_id=1083311&p_id=7664&seq=1&format=4#feedback
Click to expand...
Click to collapse
I actually have one. It works with my EVO, but not the Nook Color. You can look at the reviews for the item and see others have similiar issues with other micro USB devices. I think I'm going to order a M/F micro usb extension cable from ebay....hopefully it helps this work with my NC.
Micro USB M/F Extension
Johnny,
Are you sure its not charging? The output of the device is 800mA, and the output of the stock charger is 2000mA. So although it may be charging slowly, the nook would not report it as charging. Would you be able to plug it in and leave it for a while and see if the battery% increases?
I'm positive it's not charging. The micro USB seems to be slightly different than "standard" and thus, doesn't fit all the way into the port on the NC. I can try one more time when I get home today, but I don't think it'll go.
I wish this wasn't the case and I've tried it a handful of times when I first bought it. I've only been using it on my phone lately...
Ah ok - if you get the cable and it works let us know It is a good price even with the cable (about $20 total with battery shipping and free shipping for cable), and if that works it would be pretty sweet!
dennisi01 said:
Ah ok - if you get the cable and it works let us know It is a good price even with the cable (about $20 total with battery shipping and free shipping for cable), and if that works it would be pretty sweet!
Click to expand...
Click to collapse
I'll keep you posted. I had been debating whether or not to buy the cable, but for $5 and I can extend the use of my charger, I finally figured it'd be worth it....that and the fact that I want to help people out here so no one buys the charger itself thinking it'll work.
I ordered that cable yesterday, so when I get it (from China) I'll let you know whether it works or not.
johnny15 said:
I'll keep you posted. I had been debating whether or not to buy the cable, but for $5 and I can extend the use of my charger, I finally figured it'd be worth it....that and the fact that I want to help people out here so no one buys the charger itself thinking it'll work.
I ordered that cable yesterday, so when I get it (from China) I'll let you know whether it works or not.
Click to expand...
Click to collapse
I'm interested to know too. Thanks alot bro!
Ok. I got that battery from Monoprice, and it charges my nook without any hassle.
Just need to be a little bit precise on plugging it into the micro USB female on the nook.
jemping said:
Ok. I got that battery from Monoprice, and it charges my nook without any hassle.
Just need to be a little bit precise on plugging it into the micro USB female on the nook.
Click to expand...
Click to collapse
Well, mine does not....wonder what the difference is???
Jgrimoldy said:
It certainly should work.
The connections are a little confusing. The male micro-USB coming off the top suggests that you need to connect it to your nook, which would make the whole thing a little unweildy. Also, how is it charged? From a PC? From a AC/USB adapter?
I bought a couple of these:
http://www.dealextreme.com/p/usb-re...emergency-power-with-cell-phones-holder-44749
They're only 2000 mAh, but you can connect them to the nook with the proprietary nook USB cable. Even though they're rated at 1A, my nook recognizes as 2A...
Bonus: built in fold up wall charger.
Not-so-bonus: DealExtreme ships from Hong Kong. Delivery time is measured using the geologic time scale.
Click to expand...
Click to collapse
I'm interested in a similar charger, but with 2400mah.
http://www.dealextreme.com/p/2400ma...a-cable-for-htc-desire-g5-samsung-i9000-57905
Does it work with your android phone? A lot of after market chargers makes the touch screen unusable while charging. Does it work both while plugged into the wall and using the internal battery?
Interesting topic.
Let me see if I got this straight.
This device has double function?
-If Nc needs charging, U just plug this device and U can have extra power on the move?
-Also, it gets connected to normal wall plug and through this U charge your NOOK?It can work as alternative nook charger (but for sure in slower rate)??
I bought an Energizer XP2000 for about $35 at an OfficeMax (they're widely available). 2000 mAh capacity, weighs about 2oz, comes with its own cord with six different ends for different devices. I plugged it into my fully-charged Nook at 10,000 ft out of Seattle, watched non-stop video at 70% brightness in Airplane Mode for nearly five hours to Baltimore and still had 58% battery left on my Nook (the Energizer was discharged). Other chargers in the line go up to an insane XP1800 that'll power a LAPTOP for six hours!
The sweet spot for me is probably the XP8000. It's max output is 3500mA vs. 500mA for the XP2000, it's the size of two iPod Classics stacked on one another but weighs a little less and it should keep me going for a looong trip. It's $100 so its not an impulse buy (at least for me) but seems like an essential tool for the long distance traveler.
http://www.energizerpowerpacks.com/us/products/xp2000/
rcboosted said:
I'm interested in a similar charger, but with 2400mah.
http://www.dealextreme.com/p/2400ma...a-cable-for-htc-desire-g5-samsung-i9000-57905
Does it work with your android phone? A lot of after market chargers makes the touch screen unusable while charging. Does it work both while plugged into the wall and using the internal battery?
Click to expand...
Click to collapse
I use this with my nook. I can't answer any questions related to workability with Android phones. That's not this forum.
While using this device to charge my nook, my nook is completely usable. It will charge my nook when the device is plugged into the wall. It will also charge my nook when it's not plugged into the wall (it is a battery, after all). In either situation, my nook is completely usable when connected to this.
I use this battery with my proprietary nook charging cable.
Jgrimoldy said:
I use this with my nook. I can't answer any questions related to workability with Android phones. That's not this forum.
While using this device to charge my nook, my nook is completely usable. It will charge my nook when the device is plugged into the wall. It will also charge my nook when it's not plugged into the wall (it is a battery, after all). In either situation, my nook is completely usable when connected to this.
I use this battery with my proprietary nook charging cable.
Click to expand...
Click to collapse
Thanks for this report. My nook goes crazy when I use the same aftermarket charger that makes my phone unusable while charging. It acts as if someone is hitting the screen randomly very quickly. If you're not having issue with the nook on this charger, I'm confident it won't have issues with my phone either. I will order 1 and find out for sure.
lesdense said:
I bought an Energizer XP2000 for about $35 at an OfficeMax (they're widely available). 2000 mAh capacity, weighs about 2oz, comes with its own cord with six different ends for different devices. I plugged it into my fully-charged Nook at 10,000 ft out of Seattle ...
Click to expand...
Click to collapse
Wonderful report. I'm in the market for an external battery. A couple of questions if I may.
So one of the 6 tips works with an NC? I thought the NC's cord and tip were special to enable the quick charging. Do the Energizer products support this technology?
At dealextreme there is also 3000 battery. Why not using that?
The bigger the better right?
Sent from my NookColor using Tapatalk
d.v said:
Wonderful report. I'm in the market for an external battery. A couple of questions if I may.
So one of the 6 tips works with an NC? I thought the NC's cord and tip were special to enable the quick charging. Do the Energizer products support this technology?
Click to expand...
Click to collapse
The micro USB tip that comes with the Energizer works fine with the Nook. I don't know about "fast charge" vs. "slow charge" and all that but it definitely works. One SUBSTANTIAL advantage of the XP2000 over the larger capacity models (of the Energizer line) is that you can use any USB-to-mini USB cable, including the one that comes with it, and plug it into either a USB power plug adapter or a USB port on a computer to charge it. The XP4000, XP8000 and XP18000 all require their own power adapter. It's included in the purchase of course but I don't like carrying around another cord. Not a deal-breaker, just a factor.
johnny15 said:
I'll keep you posted. I had been debating whether or not to buy the cable, but for $5 and I can extend the use of my charger, I finally figured it'd be worth it....that and the fact that I want to help people out here so no one buys the charger itself thinking it'll work.
I ordered that cable yesterday, so when I get it (from China) I'll let you know whether it works or not.
Click to expand...
Click to collapse
Well, I said I'd update once I recieved my extension cable, so here it is...
I finally received my extension cable and it allows me to use my Monoprice charger with my Nook, so that's great. In the end, it wasn't needed. I ended up RMA'ing my charger back to Monoprice because the thing had a dull buzz when not being used and a high pitch noise when either charging a device or being charged. I'm happy to report that the new charger works with or without the extension cable on my Nook Color and on my EVO 4G. In the end though, I like the extension cable because it gives me more flexibility when using the charger.
Here are the links again...
Monoprice Charger
Extension Cable
lesdense said:
The micro USB tip that comes with the Energizer works fine with the Nook. I don't know about "fast charge" vs. "slow charge" and all that but it definitely works. One SUBSTANTIAL advantage of the XP2000 over the larger capacity models (of the Energizer line) is that you can use any USB-to-mini USB cable, including the one that comes with it, and plug it into either a USB power plug adapter or a USB port on a computer to charge it. The XP4000, XP8000 and XP18000 all require their own power adapter. It's included in the purchase of course but I don't like carrying around another cord. Not a deal-breaker, just a factor.
Click to expand...
Click to collapse
Got it. The slow vs fast charge would be a good thing to know. Can you time a charge with the Energizer unit and one with the stock NC charger? If it can fast charge, the Energizer would make a great addition to the NC.
Thanks either way. The info has been helpful.
Lapdock+Wii == Gametrix
So I have a spare Nintendo Wii and a lapdock (hopefully pick some more up if there are still any at Radioshack) and I am going to disassemble the Wii, reconfigure it to fit on the back "panel" of the Lapdock, and get the needed cords to create a Gametrix[/]
My initial goal is to connect a Nintendo Wii to my Atrix Lapdock by... (with modifications)
1) a. Having the Lapdock’s Male Mini-HDMI plugged into a Female Mini-HDMI TO M / F Fullsized-HDMI converter. Thus allowing a direct HDMI connection from there.
This takes care of ½ of connections for both the Lapdock and the Wii.
2) a. Ideally I am looking to hook the Wii’s power supply directly to the Lapdock’s Male Micro-USB port, via a Female Micro-USB TO M / F Fullsized-USB. From there I’d need a USB to Female Wall Outlet (3 prong?) this would entail finding(unlikely...) / building one.
This takes care of power needs, (if it works) leaving only the unlikely usability of the Lapdocks built in keyboard and mouse / USB ports.
2) b. if number 2 section a (above) doesn’t work because of lack of volts traveling through the USB to the Wii, then I’d be left with connecting an external battery to the Wii and just taking advantage of the screen.
Hopefully if I have to result to section b then I’d at least be able to use the keyboard and mouse?
I will update with a Diagram of my plan “a” and “b” tomorrow after school.
Here are average power draw for the Wii. @17 Watts http://www.blogcdn.com/www.joystiq.com/media/2007/02/next-gen_console_power_lg.jpg
And here for Gamecube. @23 Watts http://www.tpcdb.com/product.php?id=1615
Lapdock voltage output. ??? I think I'd have to replace the battery because it's only supposed to charge a phone/run an OS...
Lapdock insternal battery mAh ???
Please guys I know it's a lot but any input is great input
sounds fun. good luck dude.
Use a wii its better and supports a HDMI converter.
The gamecube already has a battery pack accessory and a screen accessory so its easy been done
Sent from Moto Atrix 4g on Neutrino 2.91
I have decided to go with the Wii, I am trying to find info on how many amps the Wii draws and if the Lapdock is capable of powering it...
I think I would try seeing how they both look on the screen before diving in much further, but it does sound like it could be a fun project.
Other thoughts:
how useful the project will be specifically to you? For many of us, due to the limited availability of the lapdocks, there's a limited number of people that will be able to try this themselves.
do you plan on strictly playing games, or are you going a bit further by using Linux on the device? I imagine there is a way you could use the keyboard as some type of input device, although you may have to create some translator device from a programmable Microcontroller.
is the screen big enough for enjoying using the device or is it more of a challenge than it's worth. The screen may be plenty big enough for a handheld device, but for something like using a Wii controller where you are at a distance from the screen, is it big enough?
Budget This is something we all overlook far to often. Something starts off small and simple, but before you know it, you end up spending way more than you had anticipated.
I have 2 Wii's and a Lapdock, so budget is covered.
I'm not going to use the motion bar, just gamecube games.
My main concern is if the Lapdock can power it.
jeffreygtab said:
I have 2 Wii's and a Lapdock, so budget is covered.
I'm not going to use the motion bar, just gamecube games.
My main concern is if the Lapdock can power it.
Click to expand...
Click to collapse
Power will probably be an issue through USB as USB does have a specification for max current of 500–900 mA (general); 5 A (charging devices). After that the port should shutdown to prevent burning out the controller.
Edit: I was looking at your figures above, did some digging, and I think you have a couple hurdles.
To start with, for power consumption, you want to look more at peak then you do at min and give yourself a bit of cushion, mainly because running at max power all the time will tax components. Second, and this is a big one, the Wii power pack apparently is 12V 3.7A (44.4W). USB is only 5 volts, and at 900mA you're peaking at 4.5W. However, if you could somehow manage to trick it into charge mode, you might be able to squeeze 25W. That's if it works like a standard USB port. If you can do that, you can step up the voltage with a charge pump, but I'm not quite sure how close to max that will put you due to efficiency losses. You may be able to go the other way and use the Wii to power the lapdock, or you may have to power them independently.
All that said, I think it's still important to just try to see what it looks like on the screen before digging in too far.
I plan on charging it through the Micro USB which you said supplies up to 23W+ Which is apparently plenty for the Wii. I'm going to order the necessary cords to attempt this, this weekend. So next week I'll know how much, if any, I have to modify to power it.....
I'll continue to research, and thanks for your help!
EDIT: screen size isn't an issue, as I'm have it right in from of me like a laptop, Playing Super Smash Bros Melee and the like.
BIG Message to everyone who's reading this. THIS IS MY FIRST HARDWARE MOD (as if that wasn't obvious?)
Anyways I'm gonna pick up a soldering iron as well, because I'm not finding a way to charge the Wii (assuming the Lapdock is capable...) There are no real ways to convert the micro usb to the 3 prong standard outlet that the Wii uses... So I may need to make my own? Will this work? http://www.sybausa.com/productInfo.php?iid=1274 Although I can't find where to buy it.
jeffreygtab said:
BIG Message to everyone who's reading this. THIS IS MY FIRST HARDWARE MOD (as if that wasn't obvious?)
Anyways I'm gonna pick up a soldering iron as well, because I'm not finding a way to charge the Wii (assuming the Lapdock is capable...) There are no real ways to convert the micro usb to the 3 prong standard outlet that the Wii uses... So I may need to make my own? Will this work? http://www.sybausa.com/productInfo.php?iid=1274 Although I can't find where to buy it.
Click to expand...
Click to collapse
You mean you want to convert 5V DC to 120V AC and then downconvert to 12V? Better to just go from 5V to 12V, but the reality is that it's much easier to go down than up. What does the lapdock itself have for a power supply?
Edit: Looks like the Wii has some type of USB keyboard support. Not sure if you want to try getting that to work, but it might come in handy.
I know but isn't the Wii's power cord a standard 120v 3 prong wall charger? I'd have to convert the 3 prong format to a Micro USB.
The lapdocks power supply is the battery if that's what you were asking...
Thanks for helping on my first project btw.
Check out about halfway down the page on this link if you want to see what the Wii looks like on the lapdock screen:
http://www.robpol86.com/index.php/Atrix_Lapdock_Other_Uses
jeffreygtab said:
I know but isn't the Wii's power cord a standard 120v 3 prong wall charger? I'd have to convert the 3 prong format to a Micro USB.
The lapdocks power supply is the battery if that's what you were asking...
Thanks for helping on my first project btw.
Click to expand...
Click to collapse
I'm glad to share my limited knowledge. Anyway, Really, I'm unsure if you can pull 25W out of the USB or not, but even if you could, you'd lose a good chunk of that in going from 5V to 125V AC, because at this point, a charge pump is no longer an option but instead you would need a power inverter, and since most of the commercially available ones are designed to go from 12V DC to 120V AC, you would likely end up building one yourself. The charge pump (buck–boost converter) is much easier to build, but I'm not sure about how much power you can get out of it.
Here's one I built from modifying a schematic I found online somewhere:
I hate to be the party pooper here, but I think no USB port will ever be able to deliver that much power. We're talking about several ampers here. Neither the USB port nor a great majority of USB cords are built to withstand that. Most USB hardware is designed to carry at most 1A. And then, even if you manage to get sufficient power flowing and power the contraption up, I wouldn't expect too much autonomy out of it since it is after all battery-powered. I would expect a lot of heat from the batteries too.
ravilov said:
I hate yo be the party pooper here, but I think no USB port will ever be able to deliver that much power. We're talking about several ampers here. Neither the USB port nor a great majority of USB cords are built to withstand that. Most USB hardware is designed to carry at most 1A. And then, even if you manage to get sufficient power flowing and power the contraption up, I wouldn't expect too much autonomy out of it since it is after all battery-powered. I would expect a lot of heat from the batteries too.
Click to expand...
Click to collapse
Battery Charging Specification 1.2:[14] Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A.
But as I said, I don't know if you can get that much power out of this particular device. 20W @12V is 1.6A, but in order to power that from 5V, you would need at least 4 Amps, which puts it close to max, but not over it. The actual port connector is rated much higher than that.
Edit: I do have to agree on one point though, running on battery power will be pretty limiting, especially when you consider what the batteries were intended for in the first place.
So you're saying that there's basically no way to power the Wii with the Lapdock's setup? Ughhh I assumed this would be a major issue but decided I'd leave the verdict to those more knowledgeable than myself... So you're sure there's no way? Well anyways I hope at the very least to connect an external Battery (recommendations?) and hopefully get the Wii to recognize the trackpad and keyboard esp. for linux use... I'll keep researching and keep you guys posted.
edit:
ravilov said:
I hate yo be the party pooper here, but I think no USB port will ever be able to deliver that much power. We're talking about several ampers here. Neither the USB port nor a great majority of USB cords are built to withstand that. Most USB hardware is designed to carry at most 1A. And then, even if you manage to get sufficient power flowing and power the contraption up, I wouldn't expect too much autonomy out of it since it is after all battery-powered. I would expect a lot of heat from the batteries too.
Click to expand...
Click to collapse
lehjr said:
Battery Charging Specification 1.2:[14] Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A.
But as I said, I don't know if you can get that much power out of this particular device. 20W @12V is 1.6A, but in order to power that from 5V, you would need at least 4 Amps, which puts it close to max, but not over it. The actual port connector is rated much higher than that.
Edit: I do have to agree on one point though, running on battery power will be pretty limiting, especially when you consider what the batteries were intended for in the first place.
Click to expand...
Click to collapse
Didn't read your reply Lehjr before posting mine, sorry about that. Anyways I'm still confused about whether or not the Lapdock is capable of powering the Wii? Anyways here is where I'm getting my very limited information on basic electronics. http://science.howstuffworks.com/environmental/energy/question501.htm I will keep studying though don't worry:laugh:
I'm going to post this on BenHeck Forums too for additional input. Again thank you guys.
lehjr said:
Battery Charging Specification 1.2:[14] Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A.
Click to expand...
Click to collapse
Hm, interesting. I don't know, I'd say even if the USB hardware might be able to withhold such high currents, it's only for a short while, not for continuous use. I'm talking about all the USB hardware now, not just the plugs and cords.
Anyway, while 5A might indeed be the theoretical maximum, I have yet to see an USB device that actually delivers anywhere close to that. Even most commercial "high-speed" chargers deliver only up to about 2A.
ravilov said:
Hm, interesting. I don't know, I'd say even if the USB hardware might be able to withhold such high currents, it's only for a short while, not for continuous use. I'm talking about all the USB hardware now, not just the plugs and cords.
Anyway, while 5A might indeed be the theoretical maximum, I have yet to see an USB device that actually delivers anywhere close to that. Even most commercial "high-speed" chargers deliver only up to about 2A.
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Right, running that close to maximum is likely going to be short lived, and that's if it can be coaxed to go there in the first place. I'm not sure what the portability thing is about anyway. The Wii may be small, but it's heavy.
---------- Post added at 09:29 PM ---------- Previous post was at 09:19 PM ----------
jeffreygtab said:
So you're saying that there's basically no way to power the Wii with the Lapdock's setup? Ughhh I assumed this would be a major issue but decided I'd leave the verdict to those more knowledgeable than myself... So you're sure there's no way? Well anyways I hope at the very least to connect an external Battery (recommendations?) and hopefully get the Wii to recognize the trackpad and keyboard esp. for linux use... I'll keep researching and keep you guys posted.
edit:
Didn't read your reply Lehjr before posting mine, sorry about that. Anyways I'm still confused about whether or not the Lapdock is capable of powering the Wii? Anyways here is where I'm getting my very limited information on basic electronics. http://science.howstuffworks.com/environmental/energy/question501.htm I will keep studying though don't worry:laugh:
I'm going to post this on BenHeck Forums too for additional input. Again thank you guys.
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Possibly capable, very slim chance, but doing so would be running very close to max the entire time the Wii is powered. You would also have to build a device to convert 5V to 12V, again, not impossible, but you do lose some power do to conversion inefficiencies. Is there any particular reason you want the device to be portable? IMHO, in order to run the Wii for any length of time, you would need a decent set of batteries. A few amps plugged in is one thing, on battery power that's something else. I could easily see you using something like a couple Power Wheels 6V batteries and a 12V charger or some similar setup, maybe some lithium cells if you're a big spender. Anything more than that and you're wheeling this thing around on a cart with a deep cycle marine/RV battery.
Haha a definitive answer would be welcomed as to whether it's theoretically capable or not, but if you can't provide that, I completely understand! Anyways It just needs to be temporarily portable, like 1 hour battery life is plenty. Thanks... Btw I can't actually thank you guys anymore as I'm out of thanks.
Hey guys so lately there's been a lot of discussion about the pogo charger.
I've checked all the threads and more than the value of the charger, the forums are filled with shipping complaints.
I can't seem to sort out the opinions and real comments on the pogo.
As such, for those really on the fence about getting a charger (like me) I made this poll, since there was one on screen protectors to help people choose.
Any comments made, please make constructive opinions on if you have a pogo charger, if it's worth it, etc. (not on your shipping problems please)
Thanks!
I only bought it because I thought it would be able to charge my tablet while under heavy usage (1.7GHz performance gov + full brightness), and sadly it doesn't even seem capable of doing this.
espionage724 said:
I only bought it because I thought it would be able to charge my tablet while under heavy usage (1.7GHz performance gov + full brightness), and sadly it doesn't even seem capable of doing this.
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I seem to remember somebody stating that under heavy usage they've saw a current drain over 3A. If your situation is the same, nothing is going to keep up with that which is over the max of the charging circuit. It's simple to test for that.
The POGO cord charges faster but stops during OTG usage, no ROM/kernel Dev's have tried to solve this issue so far. There may be another issue with cigarette lighter type power supply also.
Shipping just took time from Korea, now they have a US shipping source through Amazon.
I really like it, saves wear and tear on the USB. I charge at night, and never have enough time to use it that I run the battery in a day. The OTG complication is annoying, but liveable, and hopefully likely to be solved.
I like the reduced wear on the micro usb connection and additional safety of quicker disconnect if cord is yanked from tripping. I charge the tablet at night, so not too concerned whether charging is quicker. I would love to see some ideas on how to improvise a charging dock using this cable!
I think whether it's worth it totally depends on the reason you want it. If you want to use OTG while charging or to do data transfer, it's obviously a bust.
These are the reasons I'm very happy with it, in order of priority:
1) Saves stress on the USB jack, especially if dropped or banged against something.
2) Easy to click onto the N10 when I'm done reading an ebook in bed at night and I'm sleepy.
3) Charges a bit faster than USB.
If you're looking for a miraculously shorter charge time then it's not worth getting.
Definitely worthwhile ... it is one of the nicest accessories I've purchased in a while. I purchased it only for the convenience of not having to mess with the mUSB charging. It delivered. My charging graphs indicate that it charges at a faster rate than the mUSB ... just a small extra bonus.
Ken401 said:
I like the reduced wear on the micro usb connection and additional safety of quicker disconnect if cord is yanked from tripping. I charge the tablet at night, so not too concerned whether charging is quicker.
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^^ this.
I bought it because I've had occasions where others in the house have messed up micro-usb connections on phones due to using them while still plugged in - with this, there's no way of easily damaging it
And so far, so good! Would really recommend it.
espionage724 said:
I only bought it because I thought it would be able to charge my tablet while under heavy usage (1.7GHz performance gov + full brightness), and sadly it doesn't even seem capable of doing this.
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Wow, max brightness ? I find the lowest setting really bright.
I did general usage on lowest brightness and it charged pretty good, IMO.
It was worth every penny and when they come back in stock at Amazon I will order another.
I use my tablet heavily throughout the day and found myself unable to charge it completely while I slept. Now using the stock wall wart and pogo it charges in a fraction of the time. Like I said, worth every penny.
Charges faster, but was it worth it for me? Still undecided. The main reason for me getting it was to plug a HD into an OTG cable and still get power to the device via the POGO. Unfortunately that will not work. The POGO will not charge when running OTG. Shame.
Back in stock on Amazon... Just ordered one tonight. I'm interested for two reasons. Slightly faster charging (not a big deal for me, as I generally plug it in at night, and use it much of the day), and I also like the idea of the pogo connector instead of using the USB socket every day. Should have it in 3 to 5 business days.
... beamed from my Nexus 10 to your planet
Just ordered one off eBay, should have it by the 20th at the latest. I spend a lot of time driving so carry the Nexus 10 around with me in the car and I've bent the USB plug on the cable so though I'm better off getting the pogo charger incase I damage the USB port on the tablet
Answer- Yes it is but...
Just got the pogo cable on Friday and did some testing over the weekend and have some results and observations.
I ran my N10 down to 10% Saturday and plugged in via the pogo cable at about 11:30pm. . When I checked Battery Monitor Widget the following morning it showed fully charged at 4am. Total time 4.5 hours. Max charging rate was at 1916mA and tapered to 415mA.
Sunday I did the same, (11% and 11:30pm) and used the USB cable. A check of BMW showed the N10 fully charged by 5am. Total time 5.5 hours. Max rate was 1559mA and a taper to 420mA.
So, an hour faster. Not huge, but significant. Overall I think the important thing with the pogo cable is that it will charge as you use it. When I plugged in with it before I turned the screen off I was showing a net charge, while with USB it continued to discharge, albeit slower.
Both of these (admittedly unscientific) tests were done with the OEM charger and USB cable.
The pogo charger is a great way to save the USB port of the Nexus 10 if you have young kids. Since the pogo charger is magnetic, there no way to damage the tablet when a toddler yanks it off a desk while its charging. I am very happy with my pogo cable. Bought it off amazon and got it in 2 days.
Sent from my Nexus 10 using Tapatalk HD
Possible reasons:
1. Samsung figured that MOST people don't take advantage of the USB 3.0 transfer speeds.
2. It requires extra hardware = needing to stuff more stuff into the phone.
3. Higher production cost.
4. Some rumor that the USB 3.0 caused charging issues? (Complete joke, because it worked perfect for me.)
Please add on to the list if you have more info...
Personally I wish they had kept the USB 3.0 as I'm one of those who actually took advantage of it. At least they somewhat off set it with the 50% charge in 30 minutes.
Is it just me or does the USB 3.0 just add that extra premium feel? Thicker cable, faster transfer speeds...just more beefy looking with the performance to back it up.
I despise connecting a phone to pc. with cords and usb connecting, Entire process seems tedious and sloppy. On the rare occasions i do connect, i usually try to capitalize on opportunity to get a quick charge in the process.
Maybe they just had a space issue on the board.
Whatever the reason I thoroughly dislike having to buy new usb cables, and otg cables for my travel dac and usb drives.
And the data transfer speed will suffer, when transferring ROMs downloaded on a PC first.
I think so too.
Compusmurf said:
Maybe they just had a space issue on the board.
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I would lean towards cost savings, since Note 4 is actually little bit bigger than Note3 and it's not like they made it waterproof or something, to fill up the extra space (Galaxy S5 has USB3 BTW). I'm disappointed, even if I was never going to use it, cutting features on the flagship device is not the way I would like Samsung to go, what else are they going to cut in the next model? This supposed to be top of the line model filled with newest tech, if they keep on doing it I may as well buy some cheap chinese knock off, it will also have all the basic features, most people use. Actually I was hoping they'll actually fix that USB 3, so it's auto detecting not getting rid of it, very disappointed, almost as much as the phone not being waterproof.
I can see your point, because as an USB 3.0 user, not being able to transfer Gigs at a time in a few seconds is going to be greatly missed. In theory I think they could have just kept it without sacrificing anything else really. Heck, it's already proven to be true for the Note 3. So that's out of the question.
I'm not worried about Samsung cutting things in the future. They may learn from this misfit and hopefully our slaps will reach them to where they won't do something like this again LOL.
All in all... I am 90% satisfied with the Note 4. The USB 3.0 really weight 10% for me because I use it on a daily basis.
pete4k said:
I would lean towards cost savings, since Note 4 is actually little bit bigger than Note3 and it's not like they made it waterproof or something, to fill up the extra space (Galaxy S5 has USB3 BTW). I'm disappointed, even if I was never going to use it, cutting features on the flagship device is not the way I would like Samsung to go, what else are they going to cut in the next model? This supposed to be top of the line model filled with newest tech, if they keep on doing it I may as well buy some cheap chinese knock off, it will also have all the basic features, most people use. Actually I was hoping they'll actually fix that USB 3, so it's auto detecting not getting rid of it, very disappointed, almost as much as the phone not being waterproof.
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Serious question here. I have an S5 and when I copy files with the USB 3 cable to my computer with a USB 3 port, I see no noticible difference between it and USB 2. Does anyone actually notice anything?
I would expect the note 5 to be back to usb 3 (3.1 actually) and use usb type c
http://www.pcworld.com/article/2686...-deliver-displayport-audio-and-video-too.html
Sent from my SPH-L900 using Tapatalk
re: usb 3.0
aooga said:
Serious question here. I have an S5 and when I copy files with the USB 3 cable to my computer with a USB 3 port, I see no noticible difference between it and USB 2. Does anyone actually notice anything?
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You are right!
There is no difference at all, I tested it using a stop watch with a file of
two gigabytes and had the same results in speed with usb 2.0 or 3.0.
Also I really dislike the extra wide 3.0 connector which usb 3.0 requires.
aooga said:
Serious question here. I have an S5 and when I copy files with the USB 3 cable to my computer with a USB 3 port, I see no noticible difference between it and USB 2. Does anyone actually notice anything?
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I'm not sure if they fix it in GS5, but on Note 3 USB3 wasn't autodetecting, you had to go to settings and manually switch to USB 3 mode, really stupid way, since some tablets had it autodetecting a while ago and most people won't even know about it. Of course I'm assuming you're using USB3 port on your computer. Also how fast is your SD card? Phone memory is fastest. Charging from computer port is faster on USB3 also, I tested it long time ago I think it was almost twice as fast.
Thanks for clearing this up. I almost fell to the floor laughing of the thought of some thinking that USB 3.0 and USB 2.0 are of the same LOL.
Although a little cumbersome, all you have to do is flip the switch. Easy. Done deal.
pete4k said:
I'm not sure if they fix it in GS5, but on Note 3 USB3 wasn't autodetecting, you had to go to settings and manually switch to USB 3 mode, really stupid way, since some tablets had it autodetecting a while ago and most people won't even know about it. Of course I'm assuming you're using USB3 port on your computer. Also how fast is your SD card? Phone memory is fastest. Charging from computer port is faster on USB3 also, I tested it long time ago I think it was almost twice as fast.
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pete4k said:
I'm not sure if they fix it in GS5, but on Note 3 USB3 wasn't autodetecting, you had to go to settings and manually switch to USB 3 mode, really stupid way, since some tablets had it autodetecting a while ago and most people won't even know about it. Of course I'm assuming you're using USB3 port on your computer. Also how fast is your SD card? Phone memory is fastest. Charging from computer port is faster on USB3 also, I tested it long time ago I think it was almost twice as fast.
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Nope...no setting. And I don't use SD cards.
If they could implement it properly then I'd want it more but it was a half-ass implementation on the previous phones so I don't really miss it.
I don't care why they did it I'm just pissed that I got a bunch of cables I can't use now. When I switch devices my whole family switches to that device so now I have tons of USB 3 cables around the house and now we can't use them. At the very least I hope they will release the wireless charging back for us that have been taking advantage of it.
Im guessing the exclusion of USB3 had something to do with the fast charge system. Maybe heat, price who knows. The Note 4 has the option to use 9V at 1.6amps
re: samsung usb 3.0 cables
xcom923 said:
I don't care why they did it I'm just pissed that I got a bunch of cables I can't use now. When I switch devices my whole family switches to that device so now I have tons of USB 3 cables around the house and now we can't use them. At the very least I hope they will release the wireless charging back for us that have been taking advantage of it.
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Don't worry about the usb 3 0 cables, they are not proprietary and they are and
will be perfectly usable with any of the external usb 3.0 portable hard drives.
No worries. Just save them for the Note 5 and beyond. :good:
xcom923 said:
I don't care why they did it I'm just pissed that I got a bunch of cables I can't use now. When I switch devices my whole family switches to that device so now I have tons of USB 3 cables around the house and now we can't use them. At the very least I hope they will release the wireless charging back for us that have been taking advantage of it.
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You know, you're right. This is in theory the best reason in my books. Maybe the fast charge system took the place of the USB 3.0 hardware. Only one or the other type of thing. But can we have both the icing and the cake? Maybe next time...
In reality though, although I am a heavy USB 3.0 user, most people would take the fast charge over the USB 3.0 any day. I know I know....it is what it is until we can get both.
YellowGTO said:
Im guessing the exclusion of USB3 had something to do with the fast charge system. Maybe heat, price who knows. The Note 4 has the option to use 9V at 1.6amps
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+1, it's not like you will never have use for them again. It's highly likely you will get back to using them again in about 10 months? We'll see...
Misterjunky said:
Don't worry about the usb 3 0 cables, they are not proprietary and they are and
will be perfectly usable with any of the external usb 3.0 portable hard drives.
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