Database Develop

Charger specs

I'm looking for an extra charger for my nc. What I need to know is what is the mah output of the stock changer so I can get one that had the same rating. Our can someone link me to a cheap stock charger.

The output is 5volts / 1.9 Amperes.
Edit, it is written on the charger btw, you could probably have checked that your self .

Where can I get a charger with the same specs? I don't want to spend $20 but if I have to I will just buy another stock one.
I have a 5v 700mah charger that I bought for my phone. Will that work or is the rating to low?

That will work, it just wont charge as fast...
Sent from my NookColor using XDA app

FYI: I tried using my HTC usb charger with the nook usb cable and it will not charge. The charging light flickers.

Thats what I'm worried about

There is this cable from boxwave with a dongle off the end that you are supposed to use to charge from USB chargers. Why would anyone need this?
http://www.boxwave.com/products/dir...arge-cable-barnes-_-noble-nook-color_4101.htm
Mike

nrune said:
There is this cable from boxwave with a dongle off the end that you are supposed to use to charge from USB chargers. Why would anyone need this?
http://www.boxwave.com/products/dir...arge-cable-barnes-_-noble-nook-color_4101.htm
Mike
Click to expand...
Click to collapse
It looks like one end is for transferring data only and the other is for charging only

I just tried the charger I have that works with my phone and it wont charge my NC. When I plug it in nothing happens it doesn't even recognize its plugged in

boxwave.com/products/wallcharger-direct/barnes-_-noble-nook-color-wall-charger-direct_4101.htm
That looks like it will do the job perfectly and is only $13

xxosynrgoxx said:
FYI: I tried using my HTC usb charger with the nook usb cable and it will not charge. The charging light flickers.
Click to expand...
Click to collapse
It is charging, just not as fast and the device doesn't notify you of it. HTC usb wall plug chargers are usually 5volts and 1amp, the nook requires 1.9 amps to charge properly.
/mr

There are no spec listed for that charger so it could be a 700mah or it could be a 1.9a charger.

How many of you guys recommending underpowered chargers actually have any electronics background?

The nook charges when connected to a usb socket on a computer, which provides 500ma as a high power device. So your 1000ma charger is twice as good as using a computer.
In order to get 1900 ma, the nook isn't using stock usb stuff in the charger... but normal usb works just fine because, well, the standard requires it to...
4000 mAh battery should charge fully in 2 hours on the nook charger, 4 hours on the htc charger, or 8 hours on a computer...
Sent from my NookColor using XDA app

Good to note that there's a bug on the NC that makes it appear that it's not charging, when connected via USB connection, but it really does charge.

regular micro usb chargers from cell phones will charge the nook even when it says it's not charging.

Novarider said:
I just tried the charger I have that works with my phone and it wont charge my NC. When I plug it in nothing happens it doesn't even recognize its plugged in
Click to expand...
Click to collapse
The NC will charge from my Droid's power adaptor even though it does not show it to be working. It will take a lot longer to charge with a standard 0.5A USB power adaptor.

In theory, it should take about 4 times as long to charge from standard USB instead of the B&N charger.

Novarider said:
I just tried the charger I have that works with my phone and it wont charge my NC. When I plug it in nothing happens it doesn't even recognize its plugged in
Click to expand...
Click to collapse
It does work. It's just charging slow so you can't necessarily tell. Also. There will be no indicators on the nook to show that it is charging but i'm pretty sure it is. Leave it plugged in overnight and see.

2A rated USB adapter for under $10: http://www.madvapes.com/2-amp-AC-to-USB-Adapter-ideal-for-Passthroughs_p_2357.html
I own one and can confirm it works perfectly.

micro usb cable

I am using the Nook color wall charger, but left my cable at work. my nook was dead, i plugged in using a standard micro usb and the wall charger, it says wait 15 minutes, which makes me believe it is charging it. Let me go check...still says that. Do you think it will charge? I was able to transfer files with the micro usb cable to my SD card on the nook, but it wont charge it?

It may trickle charge on a non-OEM Nook Color cable (a standard micro-USB), so it would probably require charging overnight at the very least to get a near full charge once again, and certainly longer than 15 mins to get it back to usable from a low charge state.

Depends on the output of the charger, but youd likely be looking at anywhere from 4 to 8 gours for a full charge...
Sent from my NookColor using XDA app

i think i can confirm standard micro usb does not charge this thing, even with the nook wall charger. I had it plugged in from being dead for about an hour and it never came on. Thankfully i found the real charger and am back in business.

It will trickle charge for me with the nook cable hooked up to my computer, but I thought this issue was already covered and others said it would charge with a regular usb cable (again on the computer not via the adapter). Is this not the case? I hate to think I'm reliant on the nook's usb cable and can't charge at a friends.

I have charged my NC with the cable from a cell phone. It takes a LOT longer and in fact, doesn't seem to keep up with even moderate use: wifi and web browsing and battery will slowly continue to go down. Just not AS slowly as being unplugged.
But it does charge.

Hopefully someone will find a way to make the damn thing charge without verifying that it's using a Nook cable.

jve34 said:
i think i can confirm standard micro usb does not charge this thing, even with the nook wall charger. I had it plugged in from being dead for about an hour and it never came on. Thankfully i found the real charger and am back in business.
Click to expand...
Click to collapse
False, it does charge. I assume at .5A, but it's possible it's lower. Haven't looked.
TchnclFl said:
Hopefully someone will find a way to make the damn thing charge without verifying that it's using a Nook cable.
Click to expand...
Click to collapse
Plug it into any USB source using any cable providing 500mA, it will charge. It won't SHOW it is charging, as it doesn't appear to show charging unless it's on the fast 1.9Ah speed the Nook charger + special Nook cable provides. However, if it's idle enough the thing does charge.
Sitting on my desk playing with adb one day plugged into my workstation it charged 20% in a little over 2 hours. Of course that's pretty slow, but consider this is a 4.0Ah battery, you cannot compare to your phone charge times unless you multiply by 2.5 to 3!
So 20% over 2 hours would be 50-60% over 2 hours on a typical Android phone battery.

you say it charges, but leaving it plugged in from being dead to the Nook wall charger but to a standard USB did not charge it at all. No power
I have no doubt that the nook cable, plugged into a PC will charge it. It is the cable that is different.

Here are the ways that I have verified that my Nook Color wil charge:
NC wall charger/NC usb cable- best and fastest
NC wall charger/Droid usb cable (standard) - charges slowly
other USB wall charger/either usb cable- charges slowly
computer USB/NC usb cable- charges slowly
computer USB/other usb cable- charges slowly
What I have NOT done is completely drain the battery and test.
My guess is this: it charges slowly without a high rating charger and the special NC cable and when it is dead it takes a LONG time to get enough juice to boot.
Another possibility is that device variance has kicked in and while most people seem to get at least a trickle charge out of any cable/charge source we have, other units simply will not.

that is kind of what i was thinking, the fact that it was dead was not enough to even charge it properly where as if it had kind of been charged then maybe it would be more noticable that it was charging.

jve34 said:
you say it charges, but leaving it plugged in from being dead to the Nook wall charger but to a standard USB did not charge it at all. No power
I have no doubt that the nook cable, plugged into a PC will charge it. It is the cable that is different.
Click to expand...
Click to collapse
It charges no matter what cable or charger as long as it's providing reasonable current. Most USB ports and non-fast chargers provide 500mAh.
If it's dead I don't know, I don't do that to LiIon batteries.

[Q] Charging Woes

I tried posting a day or two ago about this, but wasn't able to get any replies or any help at all actually : /
Anyways, for some reason ever since I rooted my nook, when i plug a charging cable into it, it either
(a) Pulls out of sleep mode and shows the Lock Screen, which drains the batt
or
(b) Will actually turn the device ON and do the above stuff, making it really hard to charge in general
Is there any way to fix this? Right now my nook keeps hovering below the charging line and reboot looping, then when it does have enough power to actually full boot, it drains itself faster than it can charge bc it runs the screen at full brightness.
HELP PLZ!?

Your charger must be bad or some other such problem, because that's what the Nook does: plug it into the charger and it boots itself up or comes out of sleep to the lock screen. It will blank the screen relatively soon after if it is running correctly.
On top of that, the charger supplies way more than enough juice to charge even under heavy use.
Are you using the nook charger and the nook cable?

Im using a MicroSD cable either through the computer or through an actual AC port in an adapter.
Im basically now at the point where I can't charge the thing enough to get it past the "Battery is Dead, wait 15 mins" mark. It sucks so hard :<
Im thinking I may have to take it back to Best Buy and try again, I have the warranty on it, just I really dont want to do that! >_>;

I am having the same problem......
Sent from my NookColor

K41N2358 said:
Im using a MicroSD cable either through the computer or through an actual AC port in an adapter.
Click to expand...
Click to collapse
(Emphasis added)
Are you using the official B&N USB cable and charger that came with it or just generic ones?

Using a standard MicroSD Blackberry adapter.
I tried going to bestBuys (i work for them) and getting a black NC cable, no one sells any!
My next stop is going to be BN themself. Is it really that big of a difference what cable you use?

K41N2358 said:
Using a standard MicroSD Blackberry adapter.
I tried going to bestBuys (i work for them) and getting a black NC cable, no one sells any!
My next stop is going to be BN themself. Is it really that big of a difference what cable you use?
Click to expand...
Click to collapse
Yes, it does make a difference. A standard USB cable and charger takes 8 hours or so to charge an NC. The B&N cable and charger that came with your NC can do it in 2. Use them.

yes, it seems to make a difference. I can only connect to the PC [mounting the drive] with the originally cable. With the generic cable, it will charge but doesn't seem to charge as fast [less than half the speed]. I would suggest you try to get your hand on a original and see if there is a difference for you also.

from the user manual:
CAUTION: Only use the Barnes & Noble power adapter and custom microUSB cable supplied with your NOOKcolor. Other power adapters might damage your NOOKcolor and its battery. Do not use a power adapter and cable intended for other models of NOOK eReader. Use only a NOOKcolor power adapter and cable.
NOTE: Using your NOOKcolor’s microUSB cable, you can connect your NOOKcolor to your personal computer to transfer files. Connecting over USB cable does not charge your NOOKcolor, however. To charge your NOOKcolor, you must plug it into a wall outlet

[Q] Can nook color plug adapter all time ?

Laptop have smart battery manager to change a/c (when plug in power) and battery when haven't power, so haven't been charged and discharged => not low level . But have nook color smart battery manager ?
Nook color can use 8 hours , if i use more, I will charge it twice a day , I want plug it in power when I am at home

If you use the supplied cable and charger, it will allow fast charging and then automatically stop charging when it is full so you won't damage the battery.
If you use a different charger or cable, it will charge much slower.

Mine won't charge with another cable and plug besides the one it came with. Phone can't charge with NC plug and cable. Is it supposed to to be able to charge with a lower power adapter like the one for my phone?

boborone said:
Mine won't charge with another cable and plug besides the one it came with. Phone can't charge with NC plug and cable. It is supposed to to be able to charge with a lower power adapter like the one for my phone?
Click to expand...
Click to collapse
Apparently you have to shut the Nook down for it to charge with a regular USB cable. That's because a regular cable won't supply enough power to charge the device while it is running.The fact that it will charge at all under these circumstances is an unadvertised feature.

more information
Shadowise said:
If you use the supplied cable and charger, it will allow fast charging and then automatically stop charging when it is full so you won't damage the battery.
If you use a different charger or cable, it will charge much slower.
Click to expand...
Click to collapse
But I can't find this information barnesandnoble.com. Can you give some link about this ?

tienlbhoc said:
But I can't find this information barnesandnoble.com. Can you give some link about this ?
Click to expand...
Click to collapse
The supplied charger is 1.9 amp. A regular charger is 1 amp. A phone car charger is. 5 amp. That's why if you use the NC charger it's faster.

Shadowise said:
If ... stop charging when it is full so you won't damage the battery. ...
Click to expand...
Click to collapse
I want this information in barnesandnoble.com , not fast or slow

the book that comes with the nook states that when the light turns green that it is fully charged and now supplying power to the nook and not the battery (so your battery does not discharge and you can use your nook still), i'm not sure how much more proof you want than this.
As for other chargers, if you get the micro USB Type B (I believe is what it's called), it will charge fast still and SHOULD have auto shut off (since that's built into the nook).

12V Power Cord....

I needed a vehicle power cord for the Nook HD. Instead of picking up the Nook specific accessory, I picked up the regular charger figuring that I could use a 12V->USB(iPad) vehicle accessory and then just plug in the Nook HD cable.
Well, this doesn't work. I need to investigate but does anybody know if there's anything special about B&Ns vehicle->USB adapter?
Thanks,
John.

OK - any ideas on this one. Bought another type of power adapter (similar to this: http://www.amazon.com/Griffin-Powerjolt-Universal-Micro-Colors/dp/B0042B9U8Q) and when you plug in the Nook HD USB cable the green light comes on the bottom of the unit but Android still reports 'on battery'.
Same cable (original Nook HD cable) will charge the unit off a USB port or the Nook HD wall charger.
I'm confused as to why it doesn't work with 12V adapters.
John.

matthewsjl said:
OK - any ideas on this one. Bought another type of power adapter (similar to this: http://www.amazon.com/Griffin-Powerjolt-Universal-Micro-Colors/dp/B0042B9U8Q) and when you plug in the Nook HD USB cable the green light comes on the bottom of the unit but Android still reports 'on battery'.
Same cable (original Nook HD cable) will charge the unit off a USB port or the Nook HD wall charger.
I'm confused as to why it doesn't work with 12V adapters.
John.
Click to expand...
Click to collapse
The 12v car charger specs are 5v @ 1amp=5 watts per port (P=IE). The BN car charger is probably 5v @ 2 amps=10 watts output. The Nooks are programmed for 1900 ma or 500 ma charging.

Yes, but if using a 1A port on the charger, the Nook should still be able to charge at the lower 500mA rate. Yes, it would be slow but the Nook doesn't even start to charge.
Plugging the same cable into a computer USB port.... it starts to charge.
John.

As it is with the case for most USB powered devices, you'll need to find a charger or modify the existing one so that has the USB Data+ and Data- pins shorted together. I have verified this to work.