I have a Nook Simple Touch and its battery life is coming to an end. Due to the intensive use I give it.
I usually use my Nook in a fixed place. I have been searching around for a way to use the Nook, without a battery, just plugged to the wall energy. I haven't found anything.
Does anybody know how to use the Nook with no battery?
Thank you.
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P.S. If you are looking for a battery, I found this http://www.powerbookmedic.com/Nook-Simple-Touch-Battery-p-22959.html
Dissassembling it looks pretty easy https://www.youtube.com/watch?v=Zr0dCMavbPo
I'm not sure if physically removing the battery would affect anything, but if the battery is there I know that you can plug in your usb cable to a PC and then unmount it but leave it plugged it. That should allow it to charge/run and let you read with the device.
In Windows you would go to the "Safely remove devices" and choose the nook. In Linux you could either unmount it through a file manager or go to a shell and do "umount /dev/sdc" or w/e your device id is (or equivalent steps in your distro). I am not sure how to unmount in OSX... maybe drag the drive icon to the trash?
I've tried that experiment, pulled the battery and tried to get it to boot with external power.
It won't.
Although the PMIC (Power Management IC) is designed to work with a dead, missing or shorted battery, something doesn't let it.
I don't know if it's the lack of the temperature sensor when the battery is unplugged.
In any case, if the battery is mostly dead, who cares, just plug in a charger permanently.
Related
If I let the battery on my Wizard run down completely, I can't get it to recharge, either with a wall charger or USB charge/sync cable. I have to replace the battery. Is there a way to jump-start the charging process?
After I put in the new battery I can't even get the Wizard to boot up. I have to reflash with the provider ROM and then flash with my desired ROM. I know I shouldn't let the battery run down, but I have several Wizards that I alternately use, and unused, the battery runs down and then the Wizard won't restart and the battery won't recharge.
Been there!
I solved this problem by buying an extra battery, which I keep with me, fully charged in my laptop case. As far as the wizard goes, it will only charge the battery if the operating system is booted and operational. I was lucky to find a site with a whole group of people who had the same problem and came up with a solution that is crude, but it works. Take a usb to mini usb cable and cut the mini end off. Strip the black and red wires, plug it into your laptop or desktop usb port and touch the black to the negative terminal of your battery and the red to the positive. Hold them in place for about 20-30 seconds, place the battery back in the phone and it should boot and then charge normally. Somewhere on this site you will find this information and a couple of posts from people who used basically the same tehnique with a nine volt battery. I can tell you the usb cable trick works, but I haven,t tried the battery approach.
Good Luck!
Hi there!
Does anyone know of a way to operate the Universal solely on A/C power when there is no battery inserted?
I often use my universal as a WLAN media player in the kitchen. It just sits there for hours playing music and I would like to remove the battery from it during this time to extend overall battery life.
Unfortunately the device does not turn on when there is no battery inserted.
This should be fairly easy, if I understood well, you don't want to let the battery in the universal (even if normally the battery chargers apply a tickle current charge when the batteries are already charged to mantain it fully charged), so you just need to connect your power supply directly to the uni's battery contacts -BEWARE the power supply MUST be 3.7V REGULATED / 1A minimum current-.
Personally, I do not like to change the way the objects are, so I would try to keep it like this in this case, this means, no extra holes in my PDA, no extra connectors, etc. so you need a pair of mini alligators clips or miniclips to connect your unit to the power supply, be sure to verify the correct polarity, it's clearly written in the battery's contacts.
Alternatively, there should be a way of doing this by using the uni's own battery charger through it's own mini USB connector, it's necessary to cheat the PDA and let him "think" he's got the battery inserted, this should be fairly easy to do also, but I'm out of my work, so I could provide a complete solution like this until late april.
bye
downloadtest82 said:
Unfortunately the device does not turn on when there is no battery inserted.
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Click to collapse
Why don't you use an old battery?
I use this way in this particolar circumstances!
Why don't you use an old battery?
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That's what I used to do, unfortunately the old battery I have is so worn down by now it won't even support the boot process any more, and the A/C power regulator kicks in only after basic I/O drivers are loaded on the device.
Since the old battery dies before this process completes I can't use that any more.
I don't believe the Universal's "battery detection circuits" are all that complex, in most modern electronic devices they can be fooled by simply bridging some of the connectors in the battery bay.
I don't know if this is true for this device also, however. So I was wondering if anyone else ever tried before I toast my PDA...
downloadtest82 said:
Since the old battery dies before this process completes I can't use that any more.
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Oh.. I understand.. Sorry..
Well: be careful if you try to solve in other way..
hello guys
when i charge my nook with nook's charger ..... the charger become too hot till i feel that my usb connector gonna melt ...... i dont know why .... anyone expert in hardware staff???
thx
Do you have another micro-USB charger you can try? The NST doesn't need the official Nook charger. I've been using my phone's charger with no problems for months.
If another charger also heats up, then I'd worry about your Nook. If not, then I'd worry about your Nook charger.
Sun_Cat said:
Do you have another micro-USB charger you can try? The NST doesn't need the official Nook charger. I've been using my phone's charger with no problems for months.
If another charger also heats up, then I'd worry about your Nook. If not, then I'd worry about your Nook charger.
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can u specific me an charger ,,,,, thx
Any charger with a micro-USB plug will work. Here's a generic one from Amazon.
Any standard micro USB to USB cable will charge your nook device. Most power transformers that have a USB output will work, also - I charge my nook off of whatever's to hand. My memory is that the NST chargers are 1 amp or so, but if they don't have access to that much current, the NST will charge a bit slower.
Also, you can use your computer's USB port to charge a nook touch (or a nook color/tablet, but the latter two will charge very slowly that way)
If there's really a problem with the device, rather than the charger, that might make trouble -it wouldn't be the first thing to recommend since it could make trouble for your USB port or your PC as a whole.
Some warming of those transformers is fairly normal, though - I see it with my phone and with my LCD nooks, moreso when they are mostly discharged before I start charging them.
Something is wrong there. Nothing should be getting hot to the touch.
As previously said, try another charger or a USB cable connected to a computer.
Is your Nook still charging correctly? Does it get to 100%?
You can look at the battery actual voltage a few different ways.
UsbMode can show you, so can this command in ADB:
Code:
am start -n com.android.settings/.BatteryInfo
roustabout said:
Any standard micro USB to USB cable will charge your nook device. Most power transformers that have a USB output will work, also - I charge my nook off of whatever's to hand. My memory is that the NST chargers are 1 amp or so, but if they don't have access to that much current, the NST will charge a bit slower.
Also, you can use your computer's USB port to charge a nook touch (or a nook color/tablet, but the latter two will charge very slowly that way)
If there's really a problem with the device, rather than the charger, that might make trouble -it wouldn't be the first thing to recommend since it could make trouble for your USB port or your PC as a whole.
Some warming of those transformers is fairly normal, though - I see it with my phone and with my LCD nooks, moreso when they are mostly discharged before I start charging them.
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u r right .... nook charger is about 1 Amp consumption .... also it's charge nook too fast .... between i charge nook from computer it's become too slow also take about 4 hours or more to become 100% , and the thing make me sure that nook charge till the led turn from orange to green
Renate NST said:
Something is wrong there. Nothing should be getting hot to the touch.
As previously said, try another charger or a USB cable connected to a computer.
Is your Nook still charging correctly? Does it get to 100%?
You can look at the battery actual voltage a few different ways.
UsbMode can show you, so can this command in ADB:
Code:
am start -n com.android.settings/.BatteryInfo
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Click to collapse
hello Renate .... ok .... i will use this command after i install ADB on my computer ...... but i wanna ask u what USBMode use for (ur program) .... also i wanna cancel that my nook being seen from my computer as a hdd (host mood) i just wanna put it and charge my nook and enable me use my nook , cuz when i connect my nook to pc u know the message say (USB Mood) that block u use ur nook between charging ur nook
thx all guys
To prevent your Nook from mounting as a Mass Storage Device when you plug it into a PC, do this:
http://forum.xda-developers.com/showpost.php?p=32826229&postcount=2
When I am at home using my laptop, I normally plug in the charging cable and take out the batteries. Now for some obscure reasons, I want to be able to do the same thing with NST (or any other eInk eReaders). Is it possible? If not, why not? Can we do something to make it a possibility?
This can be useful for instance for when I am at home... Whenever I know I want to use the NST in USB host mode (as an eWriter, Android tablet, gaming, playing music, GPS whatever), I'd like to take out battery and use it while directly plugged into wall charger or laptop usb port. Possible?
Why take out the batteries? They are doing no harm.
If you want to hang the Nook permanently on the wall, Ok.
If you patched u-boot.bin, you could get the Nook to boot without a battery.
You could also do hardware mods to the Nook to make it work that way.
See:
Curent drain on the Nook
Measuring battery current accurately
Nook Simple Touch - DOA Wont charge/turn on
Renate NST said:
Why take out the batteries? They are doing no harm.
If you want to hang the Nook permanently on the wall, Ok.
If you patched u-boot.bin, you could get the Nook to boot without a battery.
You could also do hardware mods to the Nook to make it work that way.
See:
Curent drain on the Nook
Measuring battery current accurately
Nook Simple Touch - DOA Wont charge/turn on
Click to expand...
Click to collapse
It was exactly that post of yours (and the other one you referred me to) which gave me this idea. It might be just emotional but I want to preserve my batteries as much as I can, when I am on wall charger, so I'll take batteries out. It's been mentioned that for Li-ion batteries you can safely leave batteries in while charging, but... oh well, me being me I guess!
I'm interested to know both how to do u-boot patching AND hardware modding for this purpose. I guess I have so much to read.
You're the man, oops, ehem... woman, dear Renate.
idoit said:
When I am at home using my laptop, I normally plug in the charging cable and take out the batteries. Now for some obscure reasons, I want to be able to do the same thing with NST (or any other eInk eReaders). Is it possible? If not, why not? Can we do something to make it a possibility?
This can be useful for instance for when I am at home... Whenever I know I want to use the NST in USB host mode (as an eWriter, Android tablet, gaming, playing music, GPS whatever), I'd like to take out battery and use it while directly plugged into wall charger or laptop usb port. Possible?
Click to expand...
Click to collapse
I assume you want to preserve your batteries. You will only affect this type of batteries life/effectiveness by constant charging at 100%. Even then it will take a long while to notice. Many newer laptops (last 3-4 years) will give you bios option to charge up to only 80%. This is the sweet spot for charging life.
That said leaving your battery in your laptop/nook gives you some serious benefits. The amount of power surges, brown outs and rf noise on power lines can seriously screw with your system. That click of turning a light switch on goes through to your computer. Ok motherboard will have some filtering etc but I'd still rather have a battery protecting me. As to brown outs and surges these can cause corruption. I get a lot of power cuts and I wish there was a minimum power off length. e.g. If power is disrupted it must be off for at least 2 seconds. This lets devices power off and then switch on. The problem is where power dips for 0.5 second. This is enough time to affect your system. Possibly affect contents of your active memory and harddrive cache. Your system keeps on running and slowly overtime gets shredded.
Bottom line how much does a battery cost? Any battery for laptop is going to be <£50. How much does your laptop cost?
As to a device bursting into flames if you use a third party battery or charger its a possibility otherwise very unlikely.
Crispy3000 said:
I assume you want to preserve your batteries. You will only affect this type of batteries life/effectiveness by constant charging at 100%. Even then it will take a long while to notice. Many newer laptops (last 3-4 years) will give you bios option to charge up to only 80%. This is the sweet spot for charging life.
That said leaving your battery in your laptop/nook gives you some serious benefits. The amount of power surges, brown outs and rf noise on power lines can seriously screw with your system. That click of turning a light switch on goes through to your computer. Ok motherboard will have some filtering etc but I'd still rather have a battery protecting me. As to brown outs and surges these can cause corruption. I get a lot of power cuts and I wish there was a minimum power off length. e.g. If power is disrupted it must be off for at least 2 seconds. This lets devices power off and then switch on. The problem is where power dips for 0.5 second. This is enough time to affect your system. Possibly affect contents of your active memory and harddrive cache. Your system keeps on running and slowly overtime gets shredded.
Bottom line how much does a battery cost? Any battery for laptop is going to be <£50. How much does your laptop cost?
As to a device bursting into flames if you use a third party battery or charger its a possibility otherwise very unlikely.
Click to expand...
Click to collapse
Thanks once again for your comprehensive well-thought-about response.
About the bottom line, you're absolutely right. I read somewhere that the most killing factor for laptop is heat and one part that heats up most is batteries. One of the reasons I took it apart was this. I have to admit that I'm not electrically knowledgeable enough to claim anything. Just trying to be as green and liberally conservative as possible.
By the way, worth a watch: http://www.youtube.com/watch?v=MD6AiWP2VsY
Hi,
I know this topic popped up couple of times, just wanted to renew it. I have bunch of devices that I use for development only and they charge all the time. One of them had its battery blown (literally, phone's back cover popped up). Apparently battery was heating all the time or smth... Which led me to think:
Is there dummy battery connected to DC adapter available for sale somewhere? My devices are Galaxy S3, S4 and S5. The way I see it, there could be number of options :
1. Tweak android ROM to make it not charge the battery and use USB - probably not applicable to me cause I want to be able to update to recent Android version all the time.
2. Insert some dummy circuit to fool the phone that battery is there and leave USB connected. I guess I need to be smart about it to make sure this thermistor always show low temperature etc etc...
3. Disconnect USB, insert dummy battery made of wood or plastic or smth with wiring to DC adapter. This dummy battery should also have thermistor terminal and whatever else is required to make the phone think the battery is charged and runs cool. Im surprised I couldnt find smth like that cause it seems pretty useful even for home (I have old phone at home for example that I use to play music only, I'd just hook it up to the outlet).
Would appreciate any idea
Cheers,
Dan
PS this topic is related: http://forum.xda-developers.com/showthread.php?t=1863303
Im curious, has anybody done that recently?