anyone found an alternative car charger, I dont mean using the wall charger with an inverter
but a charger that plugs into the lighter plug?
Contra1971 said:
anyone found an alternative car charger, I dont mean using the wall charger with an inverter
but a charger that plugs into the lighter plug?
Click to expand...
Click to collapse
I used this on my Palm Pre. It charges my Epic 4g, and I tried it out on the Nook Color this AM.
It worked just fine.
http://cgi.ebay.com/OEM-SPRINT-CAR-...Accessories&hash=item45f6ea76fc#ht_1484wt_905
There's qutie a number of cigarette lighter adapters available that offer a standard USB port. You'd supply your own cable. Here's an example:
http://cgi.ebay.com/Mini-Car-Cigare...053289?pt=PDA_Accessories&hash=item2a0eed35e9
No, AFAIK, none of these will charge as fast as the standard NC charger. For that, you'd need to go thru the hassle of getting an inverter.
Monoprice has cigarette lighter to female usb chargers for $1.16 that you can use your usb cable with.
Sent from my DROIDX using XDA Premium App
well I bought 1 from Wally World and it has a dual USB output abd says it is .5v and 1.5amp but when I plug in my NC it doesnt say charging
does the sprint charger?
Jgrimoldy said:
No, AFAIK, none of these will charge as fast as the standard NC charger. For that, you'd need to go thru the hassle of getting an inverter.
Click to expand...
Click to collapse
Why is that any more of a hassle than getting a car charger?
Contra1971 said:
well I bought 1 from Wally World and it has a dual USB output abd says it is .5v and 1.5amp but when I plug in my NC it doesnt say charging
does the sprint charger?
Click to expand...
Click to collapse
Yes, the Sprint charger says 'charging' As the others stated, it's not fast, but it works just fine...
it isnt more of a hassle, I have 4 inverters, but they all have fans and make noise I wanted to use a NO noise charger thats all
d.v said:
Why is that any more of a hassle than getting a car charger?
Click to expand...
Click to collapse
Larger, heavier, more cords, much more expensive (when compared to a $1 cig-to-usb)...
Just has to be able to push out the current needed. Otherwise it may not charge, or it will charge very slowly.
The Scosche reVIVE II Dual USB Car Charger for iPad has 2.1 and 1.0 amp usb outlets, I use this for plugging in my evo and nc. It definitely charges them both even while having all the wireless radios going and tethering with gps and both screens full bright.
Contra1971 said:
it isnt more of a hassle, I have 4 inverters, but they all have fans and make noise I wanted to use a NO noise charger thats all
Click to expand...
Click to collapse
Same issue here, I have a road-trip coming up this summer and I'd love to load up my NC with music and dash-mount it but it'll be a 14-20 hour drive (depending on the number of whiz breaks the wife and kids need) and I don't think I could push the battery quite that long and the inverter when wired to the radio creates quite a buzzing.
jsw31 said:
The Scosche reVIVE II Dual USB Car Charger for iPad has 2.1 and 1.0 amp usb outlets, I use this for plugging in my evo and nc. It definitely charges them both even while having all the wireless radios going and tethering with gps and both screens full bright.
Click to expand...
Click to collapse
Are you using the Nooks specific cable on the 2.1A connection? I too am going on a trip soon, and would love a car charger that can actually CHARGE the nook while using it..
www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Is this the one you have? It looks nice and the price looks okay. Nice find. I also saw a wall plug dual usb version by same company on the same page, do you have any info on that one too? It would be nice to stream line travel chargers to a minimum, thanks.
It definitely charges both. Like I said in my previous post, I usually have both my Evo runniong and the Nook full bright display on for 50 minute commute, using TetherGPS, wifi hotspot, torque and bluetooth, google navigation pulling satellite imagery, and playing mp3s. Granted, it is slower to charge than without all that stuff running but my previous car charger would lose charge with my evo running just gps and no wifi hotspot previously.
I am using stock blackberry usb cables that I ordered from Amazon as well for $1.25 for a pair (google 'B001UC9NOQ', can't post links yet.) These are nice, thick cables that handle the charger great. I leave them plugged in inside the truck at all times. I have not used that Scosche wall charger, I use the stock chargers for travel that remain in my backpack, and I have other usb cables I use to charge at home. I would imagine it works just as well though.
jsw31 said:
It definitely charges both. Like I said in my previous post, I usually have both my Evo runniong and the Nook full bright display on for 50 minute commute, using TetherGPS, wifi hotspot, torque and bluetooth, google navigation pulling satellite imagery, and playing mp3s.
Click to expand...
Click to collapse
http://www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Luckily I'm used to carrying extra USB cables around but the noise my inverter generated while charging was super annoying, went ahead and ordered this to try it out. Hoping it works for what I need, thanks for the tip
projektdotnet said:
http://www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Luckily I'm used to carrying extra USB cables around but the noise my inverter generated while charging was super annoying, went ahead and ordered this to try it out. Hoping it works for what I need, thanks for the tip
Click to expand...
Click to collapse
Let us know if it works for you. An Amazon reviewer just reported that the Scosche reVIVE II didn't work on their Nook Color:
The nook color needs 1.9 amps, this can't do it. Scosche claims 2.1 amps but it isn't even close. It BARELY charges the nook if the machine is sleeping, when on, the battery charge goes down even while supposedly "charging." Playing video, it's even worse. On top of that if I try to charge a regular phone it puts out too much amperage on the 1 amp side and overheats the phone. Save your money, look elsewhere.
Click to expand...
Click to collapse
However, the reviewer may not know what they're talking about. A charger cannot put out "too much amperage." Too much voltage perhaps, but not too much amperage (current). A device draws only the current it needs.
An iPad needs an amperage around 2 A also. I got the Belkin Charge 2.1 made for the ipod/ipad and it DOES charge the nook color. It has a 12V plug with one USB outlet at 2.1A. I used the cable from the nook color obviously...
See, part of my worry is not the current output, but if the nook can actually communicate with these chargers and get a full 1.9A draw, instead of the detault 500mA over non B&N chargers...
cybrdmn said:
An iPad needs an amperage around 2 A also. I got the Belkin Charge 2.1 made for the ipod/ipad and it DOES charge the nook color. It has a 12V plug with one USB outlet at 2.1A. I used the cable from the nook color obviously...
Click to expand...
Click to collapse
I bought the same Belkin iPad charger from Best Buy. Rated at 2.1A. I used it with the B & N USB cable that came with my Nook Color. I used the 'Battery Monitor' software mentioned earlier here or on another post to compare charge current readings against the stock B&N wall charger/cable. The Belkin was charging right at 500 mA (NC was using ~450 mA, software showing +36 mA current). So somewhere the B & N cable & charger must have a unique way of determining that it is a B&N charger / cable and to allow the full 2.1A charge. I used the Belkin 12V charger on my TomTom and it allowed just over 1A charge, so I know the Belkin iPad charger is fine.
Yes, it does charge the Nook Color, if you are at 800 Mhz and minimum brightness running non-intensive applications--and it barely charges at that ~50 mA. It does turn the charge indicator on the B&N cable orange, and the status indicates battery charge on the screen.
Related
I haven't seen a thread that addresses this specifically:
After reading the threads in this section, it seems that the consensus is that the "fast charging" aspect of the NC is based on extra pins in the special NC cable. When connected to any charger with 1.9amps or greater, you will get the fast charge.
My experience is different.
Using the OEM NC cable:
1. Connected to OEM charger, stock ROM - settings say charging, flashes an icon with charging percent on connection and removal
2. Connected to OEM charger, CM7 - settings say Charging (AC).
3. Connected to 2.1 and 2.0 amp chargers, stock - settings say Not Charging.
4. Connected to 2.1 and 2.0 amp chargers, CM7 - settings say Charging (USB)
Using the generic microusb cables (2 or 3 tried):
1. Connected to OEM charger, stock ROM - Can't remember, but not going back to stock!
2. Connected to OEM charger, CM7 - settings say Charging (AC).
3. Connected to 2.1 and 2.0 amp chargers, stock - settings say Not Charging.
4. Connected to 2.1 and 2.0 amp chargers, CM7 - settings say Charging (USB)
This seems to imply that the OEM charger is required to really use the extra pins in the NC OEM cable. Can anyone test and confirm this?
Alan
The nook charger puts out almost 2A of power, where normal usb chargers and ports on computer only put out 500mA. The cable that the nook comes with has some terminations in it that allow the nook to tell when it is connected to the nook charger. It will charge at a much faster rate when using the combination of the charger and cable that came with the nook. Replace either the cable or the charger with anything else and you get low power charging mode which is very slow.
Nook Charger
I keep seeing reports of people getting a fast charge using various other equipment, as long as the chargers are rated >= 1.9A.
Can anyone confirm or deny this? Any testing?
As long as a charger puts out near 2A of current, it should work. The charger itself is just a four pin USB charger. The cable itself... lots of pins in the connector to the NC.
FrayAdjacent said:
As long as a charger puts out near 2A of current, it should work. The charger itself is just a four pin USB charger. The cable itself... lots of pins in the connector to the NC.
Click to expand...
Click to collapse
That's what everyone's been saying, but it doesn't work that way in my testing. I have tried 3rd party chargers that output 2.0 and 2.1A, using the OEM cable. None of them are recognized as an AC charger. If we knew how the NC knows when it's connected to the original charger, we could find a way to modify something available at WalMart to quick charge our NC's. There's plenty of Ipad chargers (2.1A) available. The one I have doesn't work, though.
Alan
Update to my previous post:
When I got home from work I tested my ipad charger (2.1A) with the nook color cable and it seemed to act like the nook charger. I did not think any charger but the nc one would work, but it seems it does.
I am jealous. My Ipad charger (OEM) paired with the nook cable shows Charging (USB) under Settings --->About Tablet--->Status. I would love know how to get it to say Charging (AC) .
Alan
Keep your eyes open people...as soon as I return to work and have extra cash I plan on ordering and tearing down a charger and cable. Many have noticed poor quality in the chargers..I'm gonna try to engineer an open DIY charger and cable replacement with better filtering components. Hopefully will be creating a thread with full details in 3 weeks...
Sent from my NookColor using Tapatalk
deadbot1 said:
Keep your eyes open people...as soon as I return to work and have extra cash I plan on ordering and tearing down a charger and cable. Many have noticed poor quality in the chargers..I'm gonna try to engineer an open DIY charger and cable replacement with better filtering components. Hopefully will be creating a thread with full details in 3 weeks...
Sent from my NookColor using Tapatalk
Click to expand...
Click to collapse
YAY! I have my soldering station warming up.
Cheers,
kev
yep, this is overdue...plugged in last night...almost burned my hand after an hour of charging. I keep my charger by the bed and the hum is just annoying when I'm feeling a bit restless.
Is there a way to identify problem chargers?
There must be some real inconsistency in the charger build quality. I've never noticed mine gets more than just a tiny bit warm and no humming. I wonder if there was a bad lot of them made? I was trying to look at the charger to see if there is a lot # or such, but can't tell what half the darned thing says. I'm posting a pic of the text on my charger in the hopes we can figure out if there is some way to identify problem chargers.
Edit: My nc came from WalMart.
Well there is a difference in the markings at least...The area circled in red...On mine it is R1101.
Still made in China
Edit: BTW my unit came from Walmart. Not sure if there would be any accounting for things like that.
deadbot1 said:
Keep your eyes open people...as soon as I return to work and have extra cash I plan on ordering and tearing down a charger and cable. Many have noticed poor quality in the chargers..I'm gonna try to engineer an open DIY charger and cable replacement with better filtering components. Hopefully will be creating a thread with full details in 3 weeks...
Sent from my NookColor using Tapatalk
Click to expand...
Click to collapse
Sounds great. The simple tests I have done have yielded more quetions then answers.
Looking forward to your data.
ive noticed i cant transfer data on anything other than the nook cable.
The NC cable is special. It wont fit other devices.
described over here....
http://en.wikipedia.org/wiki/Nook_Color
Charging the NC on a regular microUSB means much longer time.
swaaye said:
The NC cable is special. It wont fit other devices.
described over here....
http://en.wikipedia.org/wiki/Nook_Color
Charging the NC on a regular microUSB means much longer time.
Click to expand...
Click to collapse
Yeah, this much is well known...my plan is to find out if there are "brains" in the charger or if it's just a high amp USB adapter. If the latter is true( which I suspect), then it's easy peasy to make a high power port( or just buy a quality one). If it has special circuitry...then I get to try and replicate it( with better parts) and release the plans so others can make DIY replacements.
Edit: I'm willing to bet that the extra pins in the cable are just to increase contact surface...to handle the higher amperage.
Sent from my NookColor using XDA Premium App
boogerboy72 said:
ive noticed i cant transfer data on anything other than the nook cable.
Click to expand...
Click to collapse
That is totally wrong, since other cables WILL transfer data just fine. I use an LG Micro USB cable from my old dare, and am able to ADB push, install, etc just fine.
As it is, the large end of the Nook's USB cable is normal; this means that if the nook is communicating, it is doing so over the standard USB data ports, and not through some special connection. Keep in mind that some of the extra pins from the micro side are for the status light that is built in.
Hmm R1102 here showing 1.9A output
I'm curious.. some people have talked about warranty replacements. What R versions are those?
Divine_Madcat said:
That is totally wrong, since other cables WILL transfer data just fine. I use an LG Micro USB cable from my old dare, and am able to ADB push, install, etc just fine.
As it is, the large end of the Nook's USB cable is normal; this means that if the nook is communicating, it is doing so over the standard USB data ports, and not through some special connection. Keep in mind that some of the extra pins from the micro side are for the status light that is built in.
Click to expand...
Click to collapse
Hmm....hadn't thought of that...that charger almost has to be dumb...just higher output...the smarts all have to be in the USB/power management chip in the nook. Those extra pins must be for the led and maybe a few for handling the higher amperage. Need to check out the spec sheet for that chip again...
Sent from my NookColor using XDA Premium App
Why does it HAVE to be dumb? I mean, the charger needs to do nothing more than respond to a ping, saying "Hey, im a Nook charger, take me for a 1.9A ride!". I guess that makes it dumb, but no reason said technology won't be in the charger.
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.
I bought what i thought were a couple higher quality universal chargers. They charge my razr fast but won't charge my nexus 7 at all. I have one of the chargers pulled apart but before I do any soldering I want to make sure -- if I cross the 2 data points will it work?
Well I couldn't wait 10 minutes so I tried. Answer: no. Wtf?
Can anyone tell me how to hack these chargers to make them work? Is there a resistor I need to remove?
Isn't it more likely to be a software thing?
With my samsung Tab 7.7 i couldn't charge it using my ipad charger until a Dev modded the software on the tablet.
are they 2Amp chargers? most universal chargers are only 1Amp
Well whatever the problem is, I want to charge my tablet in more than one place, I want to charge it faster than the 16 hours generic chargers are taking, and I don't want to pay $30 for OEM chargers.
If your tablet is taking 16 hours to fully charge, return it. I can drain mine after heavy use of the day and its still fully charged in under 6 hours.
Sent from my Nexus 7 using xda app-developers app
@soldeus: There's nothing wrong with my tablet. The OEM charger works fine and some of my generic chargers work, they just don't have the current. (See below)
@vivan: They are 1A chargers, but they should still work. They don't charge at all. The 500ma Blackberry charger I'm using here at work will charge it in about 8 hours.
Ironically the move to almost-universal micro usb chargers has made the market for them even worse. Now, instead of having to buy a new charger every time you buy a new phone, you have to buy a dozen different chargers till you find one that actually works. Like I said, I didn't try to cheap out. I got a high quality charger.
qoncept said:
@soldeus: There's nothing wrong with my tablet. The OEM charger works fine and some of my generic chargers work, they just don't have the current. (See below)
@vivan: They are 1A chargers, but they should still work. They don't charge at all. The 500ma Blackberry charger I'm using here at work will charge it in about 8 hours.
Ironically the move to almost-universal micro usb chargers has made the market for them even worse. Now, instead of having to buy a new charger every time you buy a new phone, you have to buy a dozen different chargers till you find one that actually works. Like I said, I didn't try to cheap out. I got a high quality charger.
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The OEM charger is 2A for a reason. Because the tablet uses more power, it needs more current to charge at a fast pace.
Your generic 1A chargers are probably just enough to keep the tablet powered on, without draining (or charging) the battery.
If you can find a 2A universal charger, it should work just like the OEM one.
reiji said:
The OEM charger is 2A for a reason. Because the tablet uses more power, it needs more current to charge at a fast pace.
Your generic 1A chargers are probably just enough to keep the tablet powered on, without draining (or charging) the battery.
If you can find a 2A universal charger, it should work just like the OEM one.
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No, my 1A chargers are doing NOTHING at all. I plug it in and the charging icon doesn't come on. Reviews have tested these chargers at about 950ma and as I said, my 500ma Blackberry charger isn't too bad.. It's not lack of power, it's something else.
My guess is it has whatever resistor it needs to make it an "ipad" charger. And the vast majority of 2A chargers will, too.
So.. back to my original question: what do I need to do to make this charger charge my tablet? I KNOW it's possible. I just need to find the guy who can tell me how.
I also need a charger for my car, my usb power adapter in the car does not work, need to know what car charger will work as this tablet is supposed to be my car stereo replacement, sucks having to bring your stereo in to charge it and hope it lasts till you get done work
I bought the Scosche dual 10 Watt car charger, isn't here yet though. It does say it wont charge the Samsung tablets, maybe due to the proprietary cord because apparently there is a cord that works with them. It's not a specific ipad charger and does say it works with Android devices and tablets.
On a side note, what's the best way to determine what your N7 is actually charging at?
Both of my generic chargers won't work either, a 2.1A generic iPad charger, and a 1A standard USB charger. Considering it WILL charge off a 500ma USB port, it's not a current/amperage issue, it's a software/proprietary hardware issue.
b22ri22an said:
I also need a charger for my car, my usb power adapter in the car does not work, need to know what car charger will work as this tablet is supposed to be my car stereo replacement, sucks having to bring your stereo in to charge it and hope it lasts till you get done work
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I use a verizon branded car charger to charge my N7 but I think they charge $30 for it at the vzw store.
I suggest you read this page as it may have some info to help you modify your charger:
http://www.ladyada.net/make/mintyboost/icharge.html
neilrl79 said:
I use a verizon branded car charger to charge my N7 but I think they charge $30 for it at the vzw store.
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the cost isn't so much the issue, its the actually working part. do they have one with an angled micro usb so i can mount the tablet in the car properly or preferably a usb adapter one where i can use my own cord
For $30 you could order a handful of different ones on ebay or monoprice and find something that works. But I want a dual charger.
grim82 said:
I suggest you read this page as it may have some info to help you modify your charger:
http://www.ladyada.net/make/mintyboost/icharge.html
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does that mean a usb adapter that is certified to work with an ipad will work for my n7
b22ri22an said:
does that mean a usb adapter that is certified to work with an ipad will work for my n7
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I won't say 100% but I would bet the probability is very high. For the 1A charging they all seemed to play the same game with the voltage on the data lines. Not sure you'll get 2A but you'll at least get 1A.
Edit... maybe not, see this thread:
http://forum.xda-developers.com/showthread.php?t=1781680
I have a philips as351 audio dock that pushes 2A out of the micro-usb charger and the usb port on the back and neither will charge the N7. Bummer because it looks so nice on the dock to
I have a few of the belkin/off brand dual USB auto adapters. But they all have output of around 500mA so basically when using bluetooth and GPS on the rd I'm drawing more power than I'm getting. I've looked around on amazon for some usb adapters but seems like a lot of them for some reason only really fast charge with IPads or other apple devices and for some reason they slow charge android devices. Apparently iphones have some sort of communications with the chargers to draw more power.
So my question is does anyone have one or know of one that works with the G2 and fast charges. I'd prefer one that is flush like my existing belkin and not one that sticks out a few inches. Dual ports would be nice, but at this point I'm not picky. Having said that, I'd like to not spend $30 on it.
To add to it, I installed some battery monitor widget and while in the car today I just popped it open and noticed that it said "USB Connected Discharging" So basically It actually drains power quicker than if it wasn't connected to the charger at all!
mims1979 said:
I have a few of the belkin/off brand dual USB auto adapters. But they all have output of around 500mA so basically when using bluetooth and GPS on the rd I'm drawing more power than I'm getting. I've looked around on amazon for some usb adapters but seems like a lot of them for some reason only really fast charge with IPads or other apple devices and for some reason they slow charge android devices. Apparently iphones have some sort of communications with the chargers to draw more power.
So my question is does anyone have one or know of one that works with the G2 and fast charges. I'd prefer one that is flush like my existing belkin and not one that sticks out a few inches. Dual ports would be nice, but at this point I'm not picky. Having said that, I'd like to not spend $30 on it.
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There is a long thread on this already.
http://forum.xda-developers.com/showthread.php?t=2454301
It seems that the bigger issue is not finding a 2amp charger, but a USB cable with the correct gauge similar to the oem one. I believe the oem cable is 20 gauge and I believe I found one on Amazon.
http://www.amazon.com/gp/aw/cr/B009Z94PV2/ref=mw_dp_cr
I don't get why it's such a difficult thing to find? Doesn't LG make a car charger that charges it's own phone?
I use my older Motorola ones and they work fine. Not full 2 amp but I can stream iheartradio or Pandora and the phone will charge up still. But the screen is off, not like using GPS. Still would like a fast charger tho.
I have an Anker 24w 2 port charger and it charges my phone as fast as the wall charger. I tested it with a charger doctor and it does read 1.8a current flowing thru.
Sent from my LG-D802 using Tapatalk
I got a charger made by rocket dog I do believe for best buy best car charger I've ever had and it has an extra usb on the top
Sent from my LG-LS980 using xda app-developers app
It's not the charger that seems to be the problem. 2a Chargers can be had in many places. It seems a 20 gauge wire is the difference.
Here is a link to a post I made in another thread with a tested and working setup in my car
Cheap too.
http://forum.xda-developers.com/showpost.php?p=50053524&postcount=229
No, the problem is the op isn't using a charger designed for Android.
I've managed to find some chargers (both car and wall) that will charge with 1800mA (according to Galaxy Charging Lite app).
I have not managed to find an aftermarket cable that will charge at more than 1amp. Anyone know of an aftermarket cable that actually is capable of 1800mA? I've tried nGear and monoprice, and while they are very well constructed cables, they will only charge at 1amp or less with the n7100
Thanks for the help in advance, but please only respond to this if you've actually tested the cable with with the Galaxy Charging app or a current meter of some sort. I'm not interested in cables that only work anecdotally.
-PW
I'm breaking your rules (gasp) but as far as I'm aware, it's not the cable that manages the charge, it's the power adapter that feeds the usb, right? I've used all sorts of random cables on my travels for work, but always sticking to my 2+ amp output charger, and they've always worked.
pacificwing said:
I've managed to find some chargers (both car and wall) that will charge with 1800mA (according to Galaxy Charging Lite app).
I have not managed to find an aftermarket cable that will charge at more than 1amp. Anyone know of an aftermarket cable that actually is capable of 1800mA? I've tried nGear and monoprice, and while they are very well constructed cables, they will only charge at 1amp or less with the n7100
Thanks for the help in advance, but please only respond to this if you've actually tested the cable with with the Galaxy Charging app or a current meter of some sort. I'm not interested in cables that only work anecdotally.
-PW
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Find a very short cable and you'll see rates up to 2100 ma (as measure by battery monitor widget). I use the short usb cable that came with my jambox combined with the the phones stock charger. The charger gets so hot due to the high current that I worry if it might burn out. The cable is very short, like 6 inches. I use this one when i need a quick bump before going out.
At this low of voltage plus high current, the shielding on most cables is not enough to protect against the voltage fluctuations caused by the high magnetic field. The longer the cable the more shielding is needed. Additionally, the cable shielding gets less effective as the cable gets older due to general wear. My original usb cable can only due around 740 - 1250ma, where it used to do 1800ma when new nearly 2 years ago.
If you could find a cable where there the positive and negative wires are separated in parallel strands like traditional AC power cords, it would also help. I have a cheap charger with built in cord like this and it charges consistently fast.
Jarm3r said:
I'm breaking your rules (gasp) but as far as I'm aware, it's not the cable that manages the charge, it's the power adapter that feeds the usb, right? I've used all sorts of random cables on my travels for work, but always sticking to my 2+ amp output charger, and they've always worked.
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Most USB cables will work with the charger, but some cables (usually longer or smaller gauge wires) will restrict the charge to a lower amperage. I still haven't quite figured out how the phone knows what cable is being used, because, realistically, in a simple DC circuit, the consequence of using a cable that is too small is heating up or burning out. A cable that is too small alone will not prevent too much amperage from going through itself. This is why they invented fuses. Somehow the phone detects the gauge/length of cable being used and restricts the amperage being pulled from the charger by changing its own resistance on the circuit.
nswenson said:
Find a very short cable and you'll see rates up to 2100 ma (as measure by battery monitor widget). I use the short usb cable that came with my jambox combined with the the phones stock charger. The charger gets so hot due to the high current that I worry if it might burn out. The cable is very short, like 6 inches. I use this one when i need a quick bump before going out.
At this low of voltage plus high current, the shielding on most cables is not enough to protect against the voltage fluctuations caused by the high magnetic field. The longer the cable the more shielding is needed. Additionally, the cable shielding gets less effective as the cable gets older due to general wear. My original usb cable can only due around 740 - 1250ma, where it used to do 1800ma when new nearly 2 years ago.
If you could find a cable where there the positive and negative wires are separated in parallel strands like traditional AC power cords, it would also help. I have a cheap charger with built in cord like this and it charges consistently fast.
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I suspect you're right. The impedance of a cable is the only thing that would change over a period of time that would result in a cable that could once pull 2A to start pulling less than that. Still, it would be nice to have a list of chargers/cables that consistently pull 2A before dropping $15-$30 on one of them. There exists such a list on this forum, but it is filled with comments like "It's good enough for me", without any real data as to what performance they are getting. Hence my rules above.
The charge rate depends on your kernal not the cable. I use Agni and get over 2 amp charges from a USB cable I paid 12 cents shipped for on eBay.
I purchased this cable about two weeks ago and it delivers!! I can charge my 9300mah Zero Lemon battery from 0-100 in just under 4 hours. Stock battery in about 1.5-2hrs. Of course I'm using a 2.1 amp charger, but NONE of my other cables come close. I'm averaging 1800-1900mah charge rate with it. Next highest rate cord only gets about 1200 max. I plan on ordering 2-3 more. $5 and change with PRIME.
2.1A Micro USB Sync & Charging Cable (1M) https://www.amazon.com/dp/B009Z94PV2/ref=cm_sw_r_udp_awd_7MD2tb08CY1N7R0J
carlz28 said:
I purchased this cable about two weeks ago and it delivers!! I can charge my 9300mah Zero Lemon battery from 0-100 in just under 4 hours. Stock battery in about 1.5-2hrs. Of course I'm using a 2.1 amp charger, but NONE of my other cables come close. I'm averaging 1800-1900mah charge rate with it. Next highest rate cord only gets about 1200 max. I plan on ordering 2-3 more. $5 and change with PRIME.
2.1A Micro USB Sync & Charging Cable (1M) https://www.amazon.com/dp/B009Z94PV2/ref=cm_sw_r_udp_awd_7MD2tb08CY1N7R0J
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Thank you! This is exactly the type of review I was looking for!
:laugh:
Check this out. http://voyager8.blogspot.com/2013/04/how-to-choose-good-usb-data-and.htmlI found it while looking for the 6ft cable I used to use until it shorted from heavy use (bending a lot) and I got a pack of 10 short flat wire style 3ft cables. My 6ft one has a ferrite end and printed on it: 28agw/1p and 26awg/2c. It could handle 2A just fine, but this requires any wall outlet adapter that can output that amperage. The oem outlet adapter that comes with the phone says 2.0A output, but you can fine any 'reliable' one that has 2.0A output.
if the original cable is not 1800mA, there must be a reason
Get one of these
http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030307&p_id=5457&seq=1&format=2
anyone have this cable... or know if it is a 28AWG/1P + 24AWG/2C (i.e., 24AWG/2C for charging)
http://www.amazon.com/Mediabridge-U.../B004GF8TIK/ref=pd_cp_e_1/186-6092214-7798820
Hi
Hard to get something original for samsung nowadays
I have those monoprice cables but get different results every time I plug in (1698ma, 1300ma, 600ma, 460ma, etc...)
carlz28 said:
I purchased this cable about two weeks ago and it delivers!! I can charge my 9300mah Zero Lemon battery from 0-100 in just under 4 hours. Stock battery in about 1.5-2hrs. Of course I'm using a 2.1 amp charger, but NONE of my other cables come close. I'm averaging 1800-1900mah charge rate with it. Next highest rate cord only gets about 1200 max. I plan on ordering 2-3 more. $5 and change with PRIME.
2.1A Micro USB Sync & Charging Cable (1M) https://www.amazon.com/dp/B009Z94PV2/ref=cm_sw_r_udp_awd_7MD2tb08CY1N7R0J
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Which 2.1 amp charger are you using? I have one for my car, looking for one for home use. I also have the 9300mah ZeroLemon battery in my T-Mobile Note 2. Thanks!
Asquared said:
Which 2.1 amp charger are you using? I have one for my car, looking for one for home use. I also have the 9300mah ZeroLemon battery in my T-Mobile Note 2. Thanks!
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I was using the 2A charger that came with my Nexus tablet. But I bought an additional one for work.
iXCC ® Dual USB 4.2 Amp (20 Watt) SMART High Capacity [High Power] ... http://www.amazon.com/dp/B00HPTU0OU/ref=cm_sw_r_udp_awd_PR7.tb01EM5CB
$11.99 thru PRIME.
Had this one for almost 3 months now and it works VERY well. I get a full 1900-2000mah charge rate on the Note2 and can charge my tablet at quick speeds simultaneously.
ElDuez said:
The charge rate depends on your kernal not the cable. I use Agni and get over 2 amp charges from a USB cable I paid 12 cents shipped for on eBay.
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some fake cable limit current.
Got similar problems as the OP. I wanted to charge my phone in my car and using the phone as a navigation device without depleting the battery (which occured a few time).
Tried several usb cables, even did some mods like shorting the white and green data wire in the cabel at the phone side, but that all didn't help.
Then i came to Kopi who sells usb cables which can deliver a full current.
http://kopi-d.com/?recent_works=553
Bought a few for 6 dollar each and am now a happy camper.
shizuku said:
Got similar problems as the OP. I wanted to charge my phone in my car and using the phone as a navigation device without depleting the battery (which occured a few time).
Tried several usb cables, even did some mods like shorting the white and green data wire in the cabel at the phone side, but that all didn't help.
Then i came to Kopi who sells usb cables which can deliver a full current.
http://kopi-d.com/?recent_works=553
Bought a few for 6 dollar each and am now a happy camper.
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We're sorry, but there are no items available in the Micro USB (Android) category lol on the web site
linkhunter said:
We're sorry, but there are no items available in the Micro USB (Android) category lol on the web site
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I just saw it. Why don't you email them and ask about availability? I had contact with Victor Leung ([email protected]).