There were some requests into forcing the charger controller in the Nooks to allow higher rate charging from non-B&N chargers, I also was constantly annoyed by how my Nooks are always discharging when plugged into my computer with screen on because of only drawing about 500mA, where as the ports would happily provide 1A (development led by Apple).
The work here is experimental and if you decide to try anything, you bear the risk of stuff frying and catching on fire (granted, I did not burn anything here yet, but who knows, this is electricity we deal with here).
The "TRM" is here for anybody interested, sadly it does not match with what the hardware actually does in some important areas (also reflected in the driver comments). It looks like there is no real way to control the charging rate much, as soon as you write into draw rate register, it's two lowest bits are reset to 0 until D+/D- detection is performed, but then the detection resets draw rate back to appropriate defaults, huh? So this leaves us with two settints: 100mA or 1.2A
Plus there's something else going on, e.g. all of my iPhone chargers that I happen to have around only provide about 1.5 Watts of power and the controller refuses to draw more than 500mA from it anyway. All the Android stuff chargers I have on the other hand work out of the box and allow Nook to draw about 1.2A from them (even the native charger does not seem to draw more than this, about 7.5W according to my Kill-a-Watt display and also according to the battery current rate reported by the battery).
Anyway, I am providing two kernels, kernel for Nook HD+ and kernel for Nook HD
Flash the appropriate one for your device.
Then there's the control app: NookChargerControl.apk
Run the app, and it will present you with the main switch at the top (ignore the second switch, it's from the earlier experimentation and currently does not do anything).
If you flip the switch on, the charging is forced at 1.2A rate, no matter where you are connected (but see my earlier note about my iPhone chargers).
In addition to whatever physical measurements you are making, thee are two clues displayed about stuff:
The registers 00 and 08. When register 00 is 0x34 - that's indication of 1.2A, 0x32 = 0.5A, 0x30 = 0.1A, 0x37 should be 3A (When connected to power).
Also a battery-reported current is shown, this is your main clue about how much power does the battery really gets, negative values = discharging.
Tap anywhere on the screen to refresh the values, the battery rate reported sometimes takes several seconds to update, so do not panic if the values appear to be stuck for some time.
If you decide to try this, please report back in the thread with your findings.
In my testing, enabling the switch (while plugged into a computer) results in as much battery charging current as I am getting from B&N charger.
verygreen said:
There were some requests into forcing the charger controller in the Nooks to allow higher rate charging from non-B&N chargers.... If you decide to try this, please report back in the thread with your findings.
Click to expand...
Click to collapse
Flashed new kernel and installed charger app. When I first turned on the charger app, I'm pretty sure it said "Reg00: 0x37". After turning on the "Force USB charger mode", Reg00 went to 0x34, and stays there whether I turn USB charger mode off or on. The "Battery current" started at 476000 and is now at 358000, but I'm pretty sure that's because it was already almost completely charged, and now it says it's at 100%, though the LED is still orange. All of these measurements are on the Nook charger. Haven't tried anything else yet.
dbrickg said:
Flashed new kernel and installed charger app. When I first turned on the charger app, I'm pretty sure it said "Reg00: 0x37". After turning on the "Force USB charger mode", Reg00 went to 0x34, and stays there whether I turn USB charger mode off or on. The "Battery current" started at 476000 and is now at 358000, but I'm pretty sure that's because it was already almost completely charged, and now it says it's at 100%, though the LED is still orange. All of these measurements are on the Nook charger. Haven't tried anything else yet.
Click to expand...
Click to collapse
Thanks.
Using nook charger with this app is pointless, as it's already working (as are a bunch of other chargers from android devices).
So I guess it's being targeted at people who want to draw more power from their host computer or with incompatible chargers.
Tried with a 1amp Samsung charger. It Is showing 1092000 on an HD+
Force power 2
Reg 00 0x34
Reg 08 0xac
is this for cm10.1 or nook original os or both of them?
verygreen said:
Thanks.
Using nook charger with this app is pointless, as it's already working (as are a bunch of other chargers from android devices).
So I guess it's being targeted at people who want to draw more power from their host computer or with incompatible chargers.
Click to expand...
Click to collapse
Now if you could just write a kernel to make the nook compatible with normal USB cables... heh.
loverppc said:
is this for cm10.1 or nook original os or both of them?
Click to expand...
Click to collapse
That's just for CM10.1
dbrickg said:
Flashed new kernel and installed charger app. When I first turned on the charger app, I'm pretty sure it said "Reg00: 0x37". After turning on the "Force USB charger mode", Reg00 went to 0x34, and stays there whether I turn USB charger mode off or on. The "Battery current" started at 476000....
Click to expand...
Click to collapse
I wasn't sure if the Reg00 was originally 0x37 or not, so I reinstalled everything, and yes, it was. And for a better benchmark, when I first started charging it, with the battery at about 70%, using the nook charger, the "Battery current" was around 1670000.
Tried with this charger and neither port seems to work. Shows right around 0 for the charge amount on both ports so no charge or discharge. http://www.amazon.com/gp/product/B0088U4YAG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
On my nexus 4 and 7 it shows USB charging from apple port and ac from the other.
Also shows this for both ports
Reg00 0x32
Reg08 0x4c
Hope this info is useful.
paaco said:
Tried with this charger and neither port seems to work. Shows right around 0 for the charge amount on both ports so no charge or discharge. http://www.amazon.com/gp/product/B0088U4YAG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
On my nexus 4 and 7 it shows USB charging from apple port and ac from the other.
Also shows this for both ports
Reg00 0x32
Reg08 0x4c
Hope this info is useful.
Click to expand...
Click to collapse
0x32 is 500mAh, so it tries to draw this much, but if charge current in the battery is 0, that means there's not enough power left after what's used by tablet itself with screen on.
I have this problem with my iPhone chargers, not sure how the charger controller differentiates.
Big win for me is with a computer port, where with the app and a new kernel I can draw much more current and keep battery charging even with the screen on
verygreen said:
0x32 is 500mAh, so it tries to draw this much, but if charge current in the battery is 0, that means there's not enough power left after what's used by tablet itself with screen on.
I have this problem with my iPhone chargers, not sure how the charger controller differentiates.
Big win for me is with a computer port, where with the app and a new kernel I can draw much more current and keep battery charging even with the screen on
Click to expand...
Click to collapse
Ahh, I got you. It is nice having it charge from computer. Didn't know if your ultimate goal was to get it to work with as many chargers as possible so was trying to give you more info.
Either way, thanks for all the work you are doing and sharing to make our Nooks more enjoyable.
paaco said:
Ahh, I got you. It is nice having it charge from computer. Didn't know if your ultimate goal was to get it to work with as many chargers as possible so was trying to give you more info.
Click to expand...
Click to collapse
Yes, that was the original goal, but sadly doc does not match with the controller behavior, so current state is the best I could achieve at the moment.
Verygreen: I'm having a really hard time understanding what's happening with Nook charging.
When I plug into the original nook charger (and SOME other charges), the little light is YELLOW and the lightening bolt shows up in Android to indicate it's charging. However, it clearly charges slower in my portable charger (Monster cable charger) than with the nook charger.
It I plug it into apple compatible chargers (including my battery) the little light is GREEN rather than yellow. This is true even if I plug the nook cable into one of these a shorted cable (which will cause my Nexus 7 to go into high power charging mode).
http://www.ebay.com/itm/POWER-ONLY-...67?pt=Camera_Cables_Cords&hash=item58944a169b
Your system has two switches. "Force USB Charger Mode" and "Force 1A when charging". Your notes say ignore the Force 1A (second button)? I can't tell if the force usb charger mode does anything when the light is green. I get various numbers for battery current (seem to be all over the map)
In the monster charger, I get similar numbers whether Force USB is on or off, 100,000 - 200,000 current. I can't tell if it's better or not with Force USB on or off.
In the nook charger, I get around 700,000 current.
So it doesn't appear to be going into high power mode with Force USB in the Monster charger (which supports 1.5 amps).
In a windows usb port I get the green light and low charging current whether I enable or disable FORCE USB.
So, I'm confused.
I don't know if it's connected but it is certainly a battery issue which only presents itself on CM10.1 ... I mean I had it before in both stock and other roms but not nearly to that extend. Basically the rom seems to lose battery very fast and when it reaches 0% it simply switches off. If I boot at stock I can see I have around 40% left.
In other words battery is seriously misrepresented on CM and CM alone, other roms have nowhere near this kind of problem and every time I switch to them most of my battery issues solve themselves. It practically halves the battery life of the device for no good reason (ill-reporting). So VG, I guess it's better if you can take a look at it, it's something that I have seen reported by other people too, but it's quite of a hardle.
Your rom (CM) is basically the most complete but I always have to go elsewhere in search of/for battery life. It's the last big thing that needs to be solved and I think we're set. And -no- callibration never helps, it's not 100% that is misrepresented but 0%...
Thanks for your attention.
Stevethegreat said:
I don't know if it's connected but it is certainly a battery issue which only presents itself on CM10.1 ... I mean I had it before in both stock and other roms but not nearly to that extend. Basically the rom seems to lose battery very fast and when it reaches 0% it simply switches off. If I boot at stock I can see I have around 40% left.
In other words battery is seriously misrepresented on CM and CM alone, other roms have nowhere near this kind of problem and every time I switch to them most of my battery issues solve themselves. It practically halves the battery life of the device for no good reason (ill-reporting). So VG, I guess it's better if you can take a look at it, it's something that I have seen reported by other people too, but it's quite of a hardle.
Click to expand...
Click to collapse
I am not sure what do you mean by "other ROMs", there are only two roms out there, this and B&N stock. Everything else is based on one of the two kernels and userspaces (or sometimes combinations of thereof).
Also, is there a point in time you can think of when this problem started if it did not happen from the get go? Did 6/24 and prior exhibit premature empty battery detection?
I do not drain battery on my nooks as it takes too long and means I cannot do anything to them in the meanwhile.
verygreen said:
I am not sure what do you mean by "other ROMs", there are only two roms out there, this and B&N stock. Everything else is based on one of the two kernels and userspaces (or sometimes combinations of thereof).
Also, is there a point in time you can think of when this problem started if it did not happen from the get go? Did 6/24 and prior exhibit premature empty battery detection?
I do not drain battery on my nooks as it takes too long and means I cannot do anything to them in the meanwhile.
Click to expand...
Click to collapse
By other ROMs I mean SGT7, Carbon and stock. Using any of the three I have misrepresentation of battery life for anything below 15%, on CM I have misrepresentation all the time. It always existed as a problem but not in this level, it only became worse with the latest builds. Maybe it's hardware issue but why is it made whose by CM, basically that's what I'm asking...
I know without logs I'm not much help but for the time being I have reverted to carbon and all is well. In a few days I will retry CM and have my logs sent then. What I can safely say by looking at other people's battery graphs is that it happens to others too' maybe not as dramatically (for someone it went from 50% to 30% in one instant), but it is there...
I'm on HD+ BTW
UK Car Charger
Being unable to source a B&N car Charger in the UK - I am assuming that this mod allows me to charge from any 1 or 2 amp car charger..?
Also does it only work with CM10.0 as I am currently running CarbonROM - mainly for the improved PIE controls on Expaned screen mode..?
LucaToo said:
Being unable to source a B&N car Charger in the UK - I am assuming that this mod allows me to charge from any 1 or 2 amp car charger..?
Click to expand...
Click to collapse
I cannot promise "any".
I found that apple (and apple-devices targeting) charges generally don't work.
On the other hand chargers that target android devices seem to be working all by themselves without any tweak. My sample size is not too big, though.
Also does it only work with CM10.0 as I am currently running CarbonROM - mainly for the improved PIE controls on Expaned screen mode..?
Click to expand...
Click to collapse
depend on if the kernel support for it was added.
UK Car Charger
verygreen said:
I cannot promise "any".
I found that apple (and apple-devices targeting) charges generally don't work.
On the other hand chargers that target android devices seem to be working all by themselves without any tweak.
Click to expand...
Click to collapse
Sorry to be a pain but do you have any specific make/model car chargers that you could recommend (as most seem to be labelled as 'universal' regardless of whether they are intended for iPhone or Android)..?
Would an HTC or Samsung branded charger work for example..?
LucaToo said:
Sorry to be a pain but do you have any specific make/model car chargers that you could recommend (as most seem to be labelled as 'universal' regardless of whether they are intended for iPhone or Android)..?
Would an HTC or Samsung branded charger work for example..?
Click to expand...
Click to collapse
I don't have any experience with car chargers.
There's a high chance Samsung charger will work, I think.
Related
I can't understand why it is so slow to charge!
I tried also nuePower... but with no results.
The phone charge slow (in the same usb port where other htc phones charge quickly!)...
Do you have suggestions?
usb charging is just like that.. if you want it to charge faster, use the wall charger. although, from what i've heard, slow charging is better for the battery anyways.
yes but I usually use my tp as modem and happens that phone discharge quickly than what it charges!!! so after 3 hours phone is completely discharged!!!
This happens only with tp and not with touchHD neither with TytnII!
Incredible!
Although the voltage is the same on a PC USB port as on the wall charger, the amperage is much lower. Thus, the phone will charge significantly faster on the wall charger.
However...
I also use my TP as a modem, and I can leave it on the web indefinitely. If yours is running down, perhaps there's a different issue at play - if you don't have any power hungry apps running in the background you might just have a borked battery or USB port...
* double post, mods please delete *
Just put your phone off... the charching goes much faster...
enigma243 said:
Although the voltage is the same on a PC USB port as on the wall charger, the amperage is much lower. Thus, the phone will charge significantly faster on the wall charger.
However...
I also use my TP as a modem, and I can leave it on the web indefinitely. If yours is running down, perhaps there's a different issue at play - if you don't have any power hungry apps running in the background you might just have a borked battery or USB port...
Click to expand...
Click to collapse
I tried just after hard reset without installing any application before.
I'm using Energy ROM and I'm quite sure ROM doesn't have any problem...
I do have the same problem with my Touch Diamond. When connected to my PC or even using my car charger, it will discharge completely after 2 or three hours of using, say, GPS and a few 3G connections to check traffic.
I can't use my Diamond as a modem for the same reason... I have flashed several roms and radios, nothing changed.
Double post
Check if the TP really charges! The unit switches off the charging mode when it gets too hot or better too warm. So e.g. when in use as a GPS in car typically mounted on the windshield, it gets too warm pretty easily as GPS is quite an energy hungry application and quick discharging also heats up the battery.
CU,
Cactus World
P.S. If you are using the TP in car and have aircon, then try to direct one of the cold air streams to the TP to keep it cool. That helps to prevent the switching off of charging mode.
Try tbattery
I use the Energy Rom and it has a utility called tbattery that can show you whether the phone is charging or not and at what rate. Would at least tell you what's happening in the phone. Also gives you the internal temperature of the phone. I've found anything higher than 41 degrees c causes the phone to go into a slower charge mode; it's possible that a higher temp could stop charging altogether - however it should still allow you to power the phone and not use the battery....
I can use phone as modem and still charge it via usb. maybe try a different rom?
I can do that, too ! The problem is the phone charges too slowly, so that the actual power consumption is higher than the charging...
I think that it depends on how you use your phone as an Internet source. I use wmwifirouter, and last time I plugged into ac, my batery still ran down. If your phone lasts 4 hours as a wifi router with no power and charging takes 5 hours, you are operating at a defecit.
I'm using 3G and Internet Connection Sharing through USB cable.
And my diamond charges completely in less than two hours using the wall charger.
Normal behavior, USB port doesn't have enough "juice" to charge it faster.
If you want a quick charge - use wall charger.
1) I can't use tethering through USB if I use the wall charger
2) I use tethering when i'm NOT near a wall power outlet, obviously
3) I don't want a "quick charge"... I just want the phone not to loose charge.
4) I have owned many WinMo devices and this is the first one that will not hold charge while connected to USB
Start -> Settings-> System tab -> Power
There will be a check box that says "When device is turned on, do not charge the battery when connected to the PC." Make sure it isn't checked.
That's the only thing I can think of right now. If I think of anything else, I'll post it.
bassman79 said:
Start -> Settings-> System tab -> Power
There will be a check box that says "When device is turned on, do not charge the battery when connected to the PC." Make sure it isn't checked.
That's the only thing I can think of right now. If I think of anything else, I'll post it.
Click to expand...
Click to collapse
Thanks for the hint, but it isn't checked.
I think it's just that the phone requires too much power
And it's getting very hot very fast, which will hinder proper charging, too.
I wonder if other modern HTC devices have the same overheating problem...
hello
sorry for pushing up the topic with no sloution but new question, but yesterday i get mad when after two hours of playing streamed music + being connected to wifi my TP battery died :/ Phone was connected to wall charger (oryginal from HTC) and still i was not enough. Damn it didnt happent ever to my blueangel/eten/hermes or any other earlyer device i had. Really im starting to be angry on my latest choice of this phone i should have stay with kaiser
sorry for spelling mistakes but my English is more verbal than writable
I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Probably you need a modified Kernel like Nexus 7
avalpert said:
I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Click to expand...
Click to collapse
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
I'm interested in this too
wicpp said:
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
Click to expand...
Click to collapse
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Otg + Charging is also very useful when you are playing games using GamePad
t1.8matt said:
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Click to expand...
Click to collapse
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
wicpp said:
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
Click to expand...
Click to collapse
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
I think Nexus 5 USB Port is 5 Pin
t1.8matt said:
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
Click to expand...
Click to collapse
I think that Nexus 5 USB Port is 5 Pin and not 11 pin like Galaxy S4 or Galaxy S3. Can someone please confirm this?
If this is the case will be still be able to Charger Phone and do OTG concurrently or simultaneously ?
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Can we use QI Wireless Charging along OTG
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I am not sure but can we use QI Wireless charging along OTG. I have read somewhere that it charges but there is a bug in Kernel due to which it does not know that battery is being charged there is no animation or text to show that battery is being charged. Another concern is that if OS does not know about charging and battery is being charged is it not dangerous can it not overcharge and below the battery etc.?
Alex240188 said:
Battery goes up about 1% every 10-15 minutes.
Click to expand...
Click to collapse
I use exactly the same Y-cable from amazon as avalpert. I connect my USB 2.5" harddisk first at the Nexus charger and let it spin up. Then i connect the OTG cable to my Nexus 5 (rooted stock ROM & stock kernel). The battery icon in the status bar has no charging animation but in settings it says its charging. Around 1% in 5-10min. Even if the screen is on.
@ avalpert: U could check the current of your usb drive in the manufacturer's datasheet and subtract this from the current, your charger is able to provide. My Nexus 5 charger can output max. 1.2A at 5V. Maybe you're using another model and there is just little current left to charge as Alex remarked.
But the difference is I was only powering a flash drive which uses next to no power. And still only 1% every 10-15 minutes.
My best guess is that because otg is enabled. The kernel is not able to tell what type of charging type (ac or USB) is connected so it just enables trickle charge as not to cause any problems
Sent from my Nexus 5 using xda app-developers app
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Used Voltage and Current Rating details of Power Supply?
dirkzelf said:
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Click to expand...
Click to collapse
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
wicpp said:
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
Click to expand...
Click to collapse
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Can you tell the result of using 5V 2A Power Supply.
dirkzelf said:
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Click to expand...
Click to collapse
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
Click to expand...
Click to collapse
Here are the pictures of the PS specs. Hope it clears your question? Pls let me know.
it may be interesting to read this forum / info on 2A charging of the nexus 5...... :
http://forums.androidcentral.com/google-nexus-5/331746-2a-charger-nexus-5-a.html
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
Click to expand...
Click to collapse
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
May be we can use fix Voltage and AMP output adapter
dirkzelf said:
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
May be we can use fixed output voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins, at least we are guaranteed that, at least full power is coming out of the adapter at all times.
wicpp said:
May be we can use fixed voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins at least we are guaranteed that at least full power is coming out of the adapter at all times.
Click to expand...
Click to collapse
I am given to understand that it has nothing to do with the "intelligence" of the charger, but with basic electrical principles.
That would imlpicate that if a device requires 500 mA, the charger will supply 500 mA, if the device would require 3000mA, then it would supply 2000 mA, being it's maximum current (flow).
As far as I know, a powersource ONLY generates a flow (Amps) up to it's maximum limit, if it is connected to a consumer (device). No connected device / consumer leaves no flow to be generated.
Please correct me if I'm wrong.
Added to my little test earlier today: The phone didn't get hot, at most it would be slightly less cool..... for the PS the same.
I am a bit surprised at how long my shield tablet takes to charge, around 6-8 hours depending on how much battery is left (usually around 20% before I charge).
Is this normal? Or are my expectations a little too high in thinking it would take 2-3 hours to charge?
Many thanks for for answers!!
What charger are you using? Mine doesn't take that long and I'm using NVIIDIA's retail charger (2.1A).
I am using the wall charger that is supplied with the tablet!!
I have spoken with nvidia support about this issue, however they couldn't confirm the charge time for some reason, hence why I am asking here for peoples experience with charging times. Also I have tried googling the answer and haven't found anything!!
Slightly frustrating!!
43 views so far and no answer?
come on people, all I am asking is your charge times for your shield tablets!
pretty please with cream and a cherry on top?
I havn't any exact number for how long the charging take, but I think the charging time has increased with Lollipop. Most of the time it is fully charged over night (6-8 hours) but sometimes it has just charged a few percent.
I have seen some unfortunate charging times as well, but I haven't recorded them or taken note of exactly how long they take. I also have chargers up to 2.1A and thicker gold plated cables I've tried.
Are there any apps I can use to record battery percentage by the minute?
ACharLuk said:
What charger are you using? Mine doesn't take that long and I'm using NVIIDIA's retail charger (2.1A).
Click to expand...
Click to collapse
What are we talking about? Time to go to 100% battery or time to go to green led?
There is a 30-45 min time difference between 100% and green led.
When my shield reaches around 20% i'll charge it over night whilst I'm asleep, 6-7 hours later when i wake up i still see the orange led and am surprised at how slow it takes to get to 100%. This is how I noticed the slow recharge time.
Admittedly this is my first tablet, and as stated I'm just surprised and lead me to think maybe the charger that was provided is a dud and/or the tablet is a dud. And no one likes a dud!!
However I just wanted to hear other peoples experiences as maybe the charge time is this long and I've just got too high of an expectation that a device like this should have a charge time of 2-3 hours.
Many thanks for all the responses so far, most appreciated. Keep 'em coming!! :good:
If you want 2 - 3 hours of charging time starting from 15% or 20, you have to get another charger. The stock one is weak. I got a Samsung Note 3 one and after 2 hours and a half, or even less depending the percentage, it's fully charged.
CM17X said:
If you want 2 - 3 hours of charging time starting from 15% or 20, you have to get another charger. The stock one is weak. I got a Samsung Note 3 one and after 2 hours and a half, or even less depending the percentage, it's fully charged.
Click to expand...
Click to collapse
^^^This.
Also, I have a Quick Charge 2.0 charger that I found on Amazon that shows whether or not a device is capable of using the Quick Charge 2.0 standard. My nVidia Shield does, in fact, seem to support it, and charges pretty quickly on this charger. I can't say I've ever had the tablet get below 50% or so, but I've never seen it take more than an hour or two to get the Shield's charge indicator to go green with that charger.
jt3 said:
^^^This.
Also, I have a Quick Charge 2.0 charger that I found on Amazon that shows whether or not a device is capable of using the Quick Charge 2.0 standard. My nVidia Shield does, in fact, seem to support it, and charges pretty quickly on this charger. I can't say I've ever had the tablet get below 50% or so, but I've never seen it take more than an hour or two to get the Shield's charge indicator to go green with that charger.
Click to expand...
Click to collapse
What's the Output of yours?
CM17X said:
What's the Output of yours?
Click to expand...
Click to collapse
18W. However, in the normal 5V mode, it's only 10W, like any other 2A charger.
In QuickCharge 2.0, the device being charged decides if/when the charger uses the 5V, 9V, and/or 12V charging modes. If the device is not QC 2.0 compatible, the charger will ALWAYS charge at 5V. This particular charger indicates when the device has allowed it to shift into the 9V or 12V charging modes (but unfortunately doesn't indicate which). In either of those modes, it's 18W (which incidentally is about 4W more than the Moto "Turbo Charger").
I've seen a 30W charger on Amazon (which is the maximum, according to the standard), but it doesn't have the indicator. This is important to me, because QC 2.0 needs a full data cable to communicate with the device. Accidentally use a charge-only cable, and it will stay in 5V mode. It's nice to have that warning that you've done something wrong.
However, in this case... that indicator showed me that my Shield had a fantastic unadvertised feature (at least as far as I knew).
jt3 said:
18W. However, in the normal 5V mode, it's only 10W, like any other 2A charger.
In QuickCharge 2.0, the device being charged decides if/when the charger uses the 5V, 9V, and/or 12V charging modes. If the device is not QC 2.0 compatible, the charger will ALWAYS charge at 5V. This particular charger indicates when the device has allowed it to shift into the 9V or 12V charging modes (but unfortunately doesn't indicate which). In either of those modes, it's 18W (which incidentally is about 4W more than the Moto "Turbo Charger").
I've seen a 30W charger on Amazon (which is the maximum, according to the standard), but it doesn't have the indicator. This is important to me, because QC 2.0 needs a full data cable to communicate with the device. Accidentally use a charge-only cable, and it will stay in 5V mode. It's nice to have that warning that you've done something wrong.
However, in this case... that indicator showed me that my Shield had a fantastic unadvertised feature (at least as far as I knew).
Click to expand...
Click to collapse
So no more words, i'm getting that charger.
Ps: Negative charge while playing, do you face it? It happens on games like HL2 and Sky Gamblers - Storm Raiders.
kf006 said:
When my shield reaches around 20% i'll charge it over night whilst I'm asleep, 6-7 hours later when i wake up i still see the orange led and am surprised at how slow it takes to get to 100%. This is how I noticed the slow recharge time.
Admittedly this is my first tablet, and as stated I'm just surprised and lead me to think maybe the charger that was provided is a dud and/or the tablet is a dud. And no one likes a dud!!
However I just wanted to hear other peoples experiences as maybe the charge time is this long and I've just got too high of an expectation that a device like this should have a charge time of 2-3 hours.
Many thanks for all the responses so far, most appreciated. Keep 'em coming!! :good:
Click to expand...
Click to collapse
Seems you have a problem, mine doesn't take more than 4:30 to go from 15% to green light.
Actually, using the stock charger, it only takes mine about 3 hours to fully charge from being dead.
derekmt95 said:
Actually, using the stock charger, it only takes mine about 3 hours to fully charge from being dead.
Click to expand...
Click to collapse
I don't think so
Correct me if i'm wrong but the shield battery is 6900mAh.Stock charger is 2.1A... So what you are saying is impossible.
Doesn't charging a battery faster degrades it? Like, the faster you charge it the hotter it gets and the fastest it degrades overtime? And the same can be said of the opposite: the slower the better for the battery longevity?
Judge584 said:
I don't think so
Correct me if i'm wrong but the shield battery is 6900mAh.Stock charger is 2.1A... So what you are saying is impossible.
Click to expand...
Click to collapse
You're wrong, it's a 5197 mAh. Stock charger is 2.1A. Battery charge take 4 hours near to 5%, 3 hours near to 15%.
eurominican said:
Doesn't charging a battery faster degrades it? Like, the faster you charge it the hotter it gets and the fastest it degrades overtime? And the same can be said of the opposite: the slower the better for the battery longevity?
Click to expand...
Click to collapse
Yeah, high amperage kill your battery faster, take care about "quick recharge" charger. Try to avoid long charge too. Don't forget : 1 cycle on Lion-ion battery don't mean 1 charge = 1 cycle. 1 cycle = 0% to 100%. So you can charge 20 percents at job, 10 percents in train, 70 percents at home.
---------- Post added at 03:33 PM ---------- Previous post was at 03:30 PM ----------
kf006 said:
I am a bit surprised at how long my shield tablet takes to charge, around 6-8 hours depending on how much battery is left (usually around 20% before I charge).
Is this normal? Or are my expectations a little too high in thinking it would take 2-3 hours to charge?
Many thanks for for answers!!
Click to expand...
Click to collapse
See my post just up there. 6-8 hours is too long, maybe battery fail...
Thanks for all the replies guys, most appreciated!!
I have spoken to Nvidia Customer Care and I thought I would share what they advised me to try (which may or may not help others are experiencing the same issue), not sure if this will work or not, but at least it is something to try -
"We would kindly request you to follow the battery calibration producer mentioned in the steps below, observe the device performance and let us know the result.
You will have to calibrate the battery for just one time and observe the device battery backup for 2-3days to see the changes.
1: Drain your Shield tablet battery by using it normally until it turns off by itself.
2: Power-on your Shield tablet, if it wakes up and if you see some power left, follow step 1.
3: If Shield tablet is now drained to the point it can't wake up, set the device to charge for 7-8 hours.
The device should remain off when you set it for charging here.
4: Unplug the charger after 7-8hours, power on and wait for the battery charge to drop down to 90-95%.
5: Once the device battery drops down to 90-95%, plug in the charger and charge for one complete hour.
6: Unplug the charger once the device is fully charged.
7: Go to Shield settings > Shield power control > Apps> select optimize all option.
8: Go to Shield settings > Shield power control > system>
• Set the brightness to auto.
• Change the sleep option to 2 minutes of inactivity instead of default 10 minutes inactivity.
• Change the processor mode to either optimized or Battery savings.
• Check the Wifi optimization on.
Observe the device performance and report to us if you are still facing issue with the battery backup.
For better battery backup and optimization, you may also consider following steps.
1: Always use the Shield tablet charger and not the computer USB ports or any other charger as the power specifications vary from the device to device.
2: In case if the charger is missing, use the back port of the desktop computer to charge the device instead of front port.
3: Always remember to exit the application instead of tapping the home button which will continue to run the application in the background.
4: Restart your Shield tablet at least once in a week. This will refresh the device making it work faster and efficient.
5: Connect the charger only when the battery comes down to 15% and unplug the charger only when it reaches 90% or above. This will reduce the number of charge cycles which will make battery last longer.
6: Use a third party app manager like Clean Master and free the memory at-least once a day to keep the device running faster. "
Fingers crossed this helps.
Your charger is faulty I believe, same as mine which Amazon and Nvidia themselves said was faulty and I got a partial refund due to that. I would suggest you to get some other charger, that charges at like 2.1A as they charge the tablet ridicolously fast (about 2,5 hours from 20%) and I'm finally able to play games while charging too (however, then it charges at a slower rate).
I made a thread about this not so long ago:
http://forum.xda-developers.com/shi...k-charger-charges-slow-drops-battery-t2972368
Hi,
I stopped using my GT-N8020 for a month or two (dont remember if I powered it of before, but I dont think I did). When I wanted to use it again, it would not turn on. I left it on the charger over night (original charger, original cable, unlikely to be broken because they were working a few weeks before and not touched afterwards), but still nothing. The display stays black, the charging symbol does not show.
My first guess was a broken battery. So I went ahead, opened the tablet and replaced the battery (after first trying to unplug it for a few hours, charge it, and see what happens). I left it to charge for a few hours afterwards and again tried to power it up. Still nothing. The screen stays black.
I also made sure that all the cables are connected properly and nothing got loose (some people reported loosened ribbon cables as a potential issue). Also I tried every combination of holding all buttons forever, which many people have been recommending.
Although I am very sure that the cable is not broken, I just ordered a new one just in case. The charger was working with my phone, so that cannot be the issue, also other chargers dont work. If the new cable does not work either (which I am pretty sure it wont), I am out of ideas. Does somebody here maybe have any idea what else I could try? Maybe there is something that I missed, or maybe someone has encountered a similar issue before.
Thanks in advance
Galaxy Note "dead"
Hi,
I had the same problem once with my tablet and was able to solve the issue. Resurch on the internet reveiled that you need an extra strong charger to revive the device. They recommended a charger for the IPhone. I did not have that but used a quick-charger from my Asus phone. This worked in the end. Good luck!
didiheine said:
Hi,
I had the same problem once with my tablet and was able to solve the issue. Resurch on the internet reveiled that you need an extra strong charger to revive the device. They recommended a charger for the IPhone. I did not have that but used a quick-charger from my Asus phone. This worked in the end. Good luck!
Click to expand...
Click to collapse
There are a lot of misconceptions about basic electronics. Chargers do not "push" current "into" your device; your device pulls current from its power source; in other words, the device determines how much power is drawn (provided the power source meets the device's voltage and current requirements). The OEM charger is 5V 2A. If you plugged the Note into a 5V 10A charger, it will still only draw up to 2A--assuming the Note doesn't think it's plugged into a USB port and only draw up to 500mA (0.5A).
The key takeaway here is that a power supply's current rating is only specifying the maximum current it can provide, not how much current will be drawn.
Use an app like Ampere or this one: https://forum.xda-developers.com/android/apps-games/charge-monitor-t3555496
...to verify charging current.
Rolo42 said:
There are a lot of misconceptions about basic electronics. Chargers do not "push" current "into" your device; your device pulls current from its power source; in other words, the device determines how much power is drawn (provided the power source meets the device's voltage and current requirements). The OEM charger is 5V 2A. If you plugged the Note into a 5V 10A charger, it will still only draw up to 2A--assuming the Note doesn't think it's plugged into a USB port and only draw up to 500mA (0.5A).
The key takeaway here is that a power supply's current rating is only specifying the maximum current it can provide, not how much current will be drawn.
Use an app like Ampere or this one: https://forum.xda-developers.com/android/apps-games/charge-monitor-t3555496
...to verify charging current.
Click to expand...
Click to collapse
Thanks for your lesson on basic physics!
The truth is that a charger with higher power rating did the trick for me. Apparently with the battery fully depleeted the Galaxy Note needs to draw (initially) from a charger with a higher power provision. My Note is still alive and kicking and I never had charging problems afterwords.
The charge-monitor you are linking to is need; it is just a bit hard to install on a dead device. :laugh:
didiheine said:
Thanks for your lesson on basic physics!
The truth is that a charger with higher power rating did the trick for me. Apparently with the battery fully depleeted the Galaxy Note needs to draw (initially) from a charger with a higher power provision. My Note is still alive and kicking and I never had charging problems afterwords.
The charge-monitor you are linking to is need; it is just a bit hard to install on a dead device. :laugh:
Click to expand...
Click to collapse
...or you could install it on a working device to compare chargers.
I don't know why you mock me when I'm only trying to help you.
Now that it is working, you can compare the current draw between the two chargers and compare what the device draws vs. what the charter is rated.
If your OEM charger didn't charge the device, then it is defective, not "too small". Alternatively, the charger on the device could be defective and if indeed it does pull more current than what it was designed to do, component failure can occur (as well as a fire).
Anyone successfully using this? How have you set your charging thresholds?
For anyone not aware, the module allows your phone to stop charging once it hits 100%(or a specified percentage) and will start charging again at another specified percentage. I'm wondering how safe it is for the dash charger. Won't that power it is sending to the phone have to go somewhere? I understand the charger is doing some sort of energy conversion for the OP6 that other phones do internally at the battery- hence the OP6 doesn't get as hot while charging like ither phone's might.
Thanks!
typhoonikan said:
Anyone successfully using this? How have you set your charging thresholds?
For anyone not aware, the module allows your phone to stop charging once it hits 100%(or a specified percentage) and will start charging again at another specified percentage. I'm wondering how safe it is for the dash charger. Won't that power it is sending to the phone have to go somewhere? I understand the charger is doing some sort of energy conversion for the OP6 that other phones do internally at the battery- hence the OP6 doesn't get as hot while charging like ither phone's might.
Thanks!
Click to expand...
Click to collapse
It still has a governor to tell it to stop charging and switch to AC power after 100%. Dash charge is most effective to 60% then it dips off to protect from overload. It would just alter the governor to a lower value to switch to AC power sooner. From using a 3t for 2 years, charging every night, it didn't impact battery life too much anyway, so degration isn't a big issue, if that's your concern, unless you will keep this phone for 5+ years. The module will just give more control that you can't normally access. You can set the charge to stop at say 85% and it could keep the battery healthy for longer, in theory, since it is not always filling the battery with energy.
i have set my mcs to 65 35 via terminal, works like a charm.
typhoonikan said:
Anyone successfully using this? How have you set your charging thresholds?
For anyone not aware, the module allows your phone to stop charging once it hits 100%(or a specified percentage) and will start charging again at another specified percentage. I'm wondering how safe it is for the dash charger. Won't that power it is sending to the phone have to go somewhere? I understand the charger is doing some sort of energy conversion for the OP6 that other phones do internally at the battery- hence the OP6 doesn't get as hot while charging like ither phone's might.
Thanks!
Click to expand...
Click to collapse
Still, the actual charger is inside the phone. Otherwise, your battery would explode if you left it charging on USB or generic AC Adapter.
When I talk about charger, I really mean the phone's built-in electronic component which controls battery charging.
Many kernels have a software switch for toggling charging ON/OFF on demand, and OP's are not an exception.
In theory any Android device could have that, since the Linux kernel can be customized beyond imagination.
When you set that switch OFF, the charger simply stops pulling power from USB/AC adapter. At that point, since there's no load, the power source takes a break.
So, what's the take home message?
You can safely use MCS on One Plus 6.
There's a beta version which is good enough to use as a daily driver.
Don't hesitate to ask questions on the official Thread.