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Does anyone have issues charging the infuse using the car charger? It seems like it takes forever
Sent from my SAMSUNG-SGH-I997 using XDA App
reissy said:
Does anyone have issues charging the infuse using the car charger? It seems like it takes forever
Sent from my SAMSUNG-SGH-I997 using XDA App
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Click to collapse
Yes it will be buddy theres no yet i.found that leaving it alone and not using it is only way.to.enhance performance
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
reissy said:
Does anyone have issues charging the infuse using the car charger? It seems like it takes forever
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
Which car charger? The AT&T one?
The AT&T one sucks - very low current limit, and it's detected as a USB charger by the Infuse and not as full-current charger.
If you use the car dock, any high-current charger (like iPad chargers) will work with the Infuse.
If you don't use the car dock, if you use an iPad/iPhone charger, you have to open up the charger and short the D+ and D- pins of the USB connector of the charger with a solder blob, or use a "charging adapter" cable. (Apparently AT&T sells such a cable - the negative reviews for not working for data transfer mean it'll work great for charging from iPhone/iPad USB chargers.) I use the 1A port of a Scosche reVIVE II with the D+ and D- pins solder-blobbed together.
Also, if the CPU is running and the screen is on, CPU and screen usage count against the phone's charge current limit, so will significantly reduce charge rate. (Samsung noobed that one...)
I found that turning off the data makes it charge faster!
Sent from my SAMSUNG-SGH-I997 using XDA App
debra said:
I found that turning off the data makes it charge faster!
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
Samsung noobed it up in this phone's charging design - CPU/screen, and maybe even radio current usage count against the phone's charge current limit. This means that instead of 600 mA going only to the battery, it's 600 mA going to battery and all sorts of stuff - so the battery gets far less. This is why battery can actually drain while running navigation.
However the AT&T charger itself imposes a lower current limit than this, so even if Samsung hadn't noobed it, you'd still get a slow charge.
Entropy512 said:
Samsung noobed it up in this phone's charging design - CPU/screen, and maybe even radio current usage count against the phone's charge current limit. This means that instead of 600 mA going only to the battery, it's 600 mA going to battery and all sorts of stuff - so the battery gets far less. This is why battery can actually drain while running navigation.
However the AT&T charger itself imposes a lower current limit than this, so even if Samsung hadn't noobed it, you'd still get a slow charge.
Click to expand...
Click to collapse
Do you think it would charge faster under GingerBread? I cannot have a phone like this if it takes forever and a day to charge. That just sucks.
reissy said:
Do you think it would charge faster under GingerBread? I cannot have a phone like this if it takes forever and a day to charge. That just sucks.
Click to expand...
Click to collapse
I won't know until I've had a chance to look at the source drop.
Ideally:
They've fixed it so CPU/screen/etc usage doesn't count against charge current.
Workaround if they haven't:
It's possible to bump charge current up to 800 mA (stock is 600 mA). While this initially seems like only a 25% boost to charging, the fact that CPU/screen/etc is using part of the charge current limit means actual battery current will be up significantly more than 25%.
Entropy512 said:
I won't know until I've had a chance to look at the source drop.
Ideally:
They've fixed it so CPU/screen/etc usage doesn't count against charge current.
Workaround if they haven't:
It's possible to bump charge current up to 800 mA (stock is 600 mA). While this initially seems like only a 25% boost to charging, the fact that CPU/screen/etc is using part of the charge current limit means actual battery current will be up significantly more than 25%.
Click to expand...
Click to collapse
Interesting. I wonder if a custom kernel could fix this issue. Is that possible?
Entropy512 said:
Which car charger? The AT&T one?
The AT&T one sucks - very low current limit, and it's detected as a USB charger by the Infuse and not as full-current charger.
If you use the car dock, any high-current charger (like iPad chargers) will work with the Infuse.
If you don't use the car dock, if you use an iPad/iPhone charger, you have to open up the charger and short the D+ and D- pins of the USB connector of the charger with a solder blob, or use a "charging adapter" cable. (Apparently AT&T sells such a cable - the negative reviews for not working for data transfer mean it'll work great for charging from iPhone/iPad USB chargers.) I use the 1A port of a Scosche reVIVE II with the D+ and D- pins solder-blobbed together.
Also, if the CPU is running and the screen is on, CPU and screen usage count against the phone's charge current limit, so will significantly reduce charge rate. (Samsung noobed that one...)
Click to expand...
Click to collapse
Would one of these work? I use it on my Galaxy Tab 10.1. It has a data/charge switch.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330565218553&ssPageName=STRK:MEWNX:IT
reissy said:
Interesting. I wonder if a custom kernel could fix this issue. Is that possible?
Click to expand...
Click to collapse
It is entirely possible to crank the charge current up to 800 mA - I've done it and have been testing it on my phone. I have some additional stuff I want to do before general public release which is hard because the charge control stuff is major spaghetti code in the Froyo kernel. I'm hoping the GB kernel source is a bit cleaner.
I am not sure if it is possible to fix the fact that CPU/screen/etc usage is counted against the battery charge current limit. This may be simply bad hardware design. There's a slight possibility that it may just be that a register in the MAX8998 is being set improperly, such as the ESAFEOUT bits. When I get home and take a look at the GB kernel I'll know for sure. The problem is that the MAX8998 datasheet is proprietary and so the only documentation for this chip is the kernel source itself - which isn't particularly good for a number of aspects of the chip.
MisterEdF said:
Would one of these work? I use it on my Galaxy Tab 10.1. It has a data/charge switch.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330565218553&ssPageName=STRK:MEWNX:IT
Click to expand...
Click to collapse
I'll test - I've got a charger modded for charging my Tab 10.1, but I haven't tested it with the Infuse. I know solder-blobbing D+ and D- of an iPad charger works, but not what happens if you mangle the resistors in such a way that Tab 10.1s charge.
I have a charger from Griffin that works with my iPad that is a mini cig lighter adapter plug with a USB plug in it. It comes with a 30 pin cable for iDevices, but if I plug the micro USB cable that came with my Infuse it works great and charges relatively fast... I haven't done any serious testing, but from what I can tell it's much faster than if it were charging off my laptop's USB, but not as fast as being plugged into the wall.
What I think makes the difference is the fact that the charger is iPad capable, which means it's rated to output more power than the basic iPhone/pod versions. The iPad requires something like 2.1 amps compared to the .5 amps the normal usb chargers put out. This is why most laptops older than about 3 years can't charge the iPad via usb.
Now, I know my reference to "amps" I will be corrected or clarified. I'm no electrical engineer, lol... but what I'm going off is he output listing on the chargers. Bottom line is the iPads need a lot more juice and maybe so do our Infuses.
Hope this helps/makes sense!
tazm0n said:
I have a charger from Griffin that works with my iPad that is a mini cig lighter adapter plug with a USB plug in it. It comes with a 30 pin cable for iDevices, but if I plug the micro USB cable that came with my Infuse it works great and charges relatively fast... I haven't done any serious testing, but from what I can tell it's much faster than if it were charging off my laptop's USB, but not as fast as being plugged into the wall.
What I think makes the difference is the fact that the charger is iPad capable, which means it's rated to output more power than the basic iPhone/pod versions. The iPad requires something like 2.1 amps compared to the .5 amps the normal usb chargers put out. This is why most laptops older than about 3 years can't charge the iPad via usb.
Now, I know my reference to "amps" I will be corrected or clarified. I'm no electrical engineer, lol... but what I'm going off is he output listing on the chargers. Bottom line is the iPads need a lot more juice and maybe so do our Infuses.
Hope this helps/makes sense!
Click to expand...
Click to collapse
It's not just about the charger's amperage limit (and yes, amps is correct, you got it right.), but telling the phone that there is a high-current charger connected.
The standard way of doing this (which our phones follow) is to short D+ and D- together.
The Apple way of doing things is to use resistors from ground and +5v to set D+ and D- to specific voltages - 2.0 and 2.8 volts to be specific. Our phones usually detect this as a USB host and limit charge current to something like 475 mA. (I forget the exact value.)
Galaxy Tabs do it yet another way - tie D+ and D- together and use resistors to make them both around 1.2 volts. (Edit: Just tried my Tab 10.1 wall charger. Our phone detects this as an AC charger.)
Even with a high-current charger, our phones limit battery current internally to 600 mA on AC. Unfortunately, CPU/screen usage is counted against this limit, reducing actual current into the battery. The charger chip in our phones allows up to 800 mA. I've got a kernel that I use myself that does this but I'm a bit paranoid about it stressing the battery which is why I haven't publically released it.
Good news and bad news from the Gingerbread kernel: The bad news is I don't see anything obvious that would fix the flaw of CPU/screen current counting against the charge current limit. The good news is that implementing a safer way to crank the charger current is a LOT easier. It would charge at 800 until the battery hit a certain voltage (currently I'm thinking 4.05 volts), then 700 mA up to 4.1 volts, then 600 up to charge termination. I might make those 4.0/4.05 to be safe. Doing this in the Froyo kernels would have been painful, the Gingerbread kernel's code is much cleaner and this should be a lot easier to add.
@entropy512
So are you saying the eBay Galaxy P1000 Tab charging adapter I pointed to a couple messages back should work on the Infuse without having to modify the charger when set in CHARGE mode?
MisterEdF said:
@entropy512
So are you saying the eBay Galaxy P1000 Tab charging adapter I pointed to a couple messages back should work on the Infuse without having to modify the charger when set in CHARGE mode?
Click to expand...
Click to collapse
Based on everything I've heard that says the P1000 charging adapter works on the P7510 (Tab 10.1 wifi), yes, since our phones detect Tab 10.1 chargers as full-blown chargers.
Entropy512 said:
If you use the car dock, any high-current charger (like iPad chargers) will work with the Infuse.
<SNIP>
Also, if the CPU is running and the screen is on, CPU and screen usage count against the phone's charge current limit, so will significantly reduce charge rate. (Samsung noobed that one...)
Click to expand...
Click to collapse
I was impatient and picked up the (excellent!) Samsung car dock and can reconfirm (just for another datapoint - Entropy's comments are gold here!) ...
With Waze or Google Maps/Navigation running, background music streaming (Pandora etc) OR a phone call underway (50/50) and a relatively high brightness setting the whole time (65% this morning - it was SUNNY!) my setup *LOST* charge on my 50+ mile drive (from 78% to 73% or so). All sound over Bluetooth the whole way. WiFi off, GPS (duh) on.
My Setup: Cheap Woot!ed Belkin 9V-USB 1A adapter with an Amazon-sourced Samsung original data/charge cable and the Samsung car dock.
Workable - at this rate it would lose ALL charge AFTER my rather substantial gas (diesel!) tank is empty.
BUT the new kernel or a charging fix would be great because then I don't have to remember to enter the car with a fully charged phone, or conversely, worry that I may leave, and thn run out, since charge was depleted en route!
Hi guys,
as i'm working in a big soc company, I have access to some protocol analyser, and we connected the note 3 I just bought. I have a 9005 version, the euro snapdragon version.
It appears that driver doesn't declare itself as a USB3 but USB2 device, even if connected to a USB3 hub, and so there will be no possibility to access USB3 features:
-charge up to 900mah when connected to PC
-throughput up to 5gbps.
We will barely reach USB2 standards...
I verified on samsung website, and they advertise a USB3 micro connector, which is right... .
Hope that software release may change something to this... I check qualcomm webpage, and USB3 may be possible (if phone vendor ask for the feature, I suppose.).
Edit: I just found that MTP usb3 was not activated. When set to this (MPT usb3), it declares itself like a usb3 but charge at 384mah. I didn't check transfer speed...
My fault on this, but I would hope that USb connection delcares itself as a USB3 if the transciever is an USB3 one... this sucks because if you want it to charge correctly on PC, you need to change the USB type each time you connect it...
Thank you for the info
Sent from my SM-N900T using Tapatalk
I don't think USB3 matters much on a phone. We are not talking SSD-like speeds, so even with 5gbps transfer rate on USB3 standard, you won't get anywhere close to that speed since you are writing to a (relatively) slow flash.
Digi+
If you have asus motherboard like (R4E) you can enable digi+ and it will super charge without even selecting the usb 3 but you will not be able to use MTP until you turn off digi+
I think someone can code a program (root required ?) which auto-selects the usb 3 option ounce its available.
A phone isnt meant to be charged on a PC anyways, first, a PC never gives the power the stock charger directly in outlet gives, if i remember, the USB post gives and output of half an amp, as the stock charger gives out 2 amps, the USB 3 is mostly for transfer speeds, which are much better with the note 3, i did a test because i still have my S4, transferring a 5GB file on from S4 to PC took 8 minutes with my S4, and 5 with my Note. So yes, it is USB 3. I mean, how else can you charge a 3200mah batteru from 0 to 100 in 1h?????????????
Here's what AnandTech said originally and their subsequent update.
The Galaxy Note 3 ships with USB 3.0, unfortunately at least in its current state it doesn't seem to get any benefit from the interface. Although the internal eMMC is capable of being read from at ~100MB/s, sustained transfers from the device over adb averaged around 30MB/s regardless of whether or not I connected the Note 3 to a USB 2.0 or 3.0 host.
Update: USB 3.0 does work on the Note 3, but only when connected to a Windows PC with USB 3.0. Doing so brings up a new option in the "USB Computer Connection" picker with USB 3.0 as an option. Ticking this alerts you that using USB 3.0 might interfere with calls and data, but then switches over. Connection transfer speed is indeed faster in this mode as well, like you'd expect.
That's strange. I used my USB 3.0 hub and USB 3.0 Connector directly to my phone
I was able to transfer files much faster than my other USB 2.0 devices
250 MB files are no problem the load bar just zips by and blam all done
A Blue Ray film of 8GB took about 3-4 minutes for me.
The speeds of recharging is quite notable to
Am I seeing things?
1sagain said:
That's strange. I used my USB 3.0 hub and USB 3.0 Connector directly to my phone
I was able to transfer files much faster than my other USB 2.0 devices
250 MB files are no problem the load bar just zips by and blam all done
A Blue Ray film of 8GB took about 3-4 minutes for me.
The speeds of recharging is quite notable to
Am I seeing things?
Click to expand...
Click to collapse
The device surely does receive USB 3 transfer speeds when being written directly to the internal storage (not the SD card) and you put it in USB 3 mode which momentarily deactivates data connection. When writing to your external card however, you are better off leaving it on the MTP USB 2 mode because you will not get the benefit of the USB 3 speed that way..
Yeah, I charged my phone for a bit when plugged into my USB3 and it DEFINITELY charged faster than any USB port ever has...
Charging time incorrect.
polish_pat said:
A phone isnt meant to be charged on a PC anyways, first, a PC never gives the power the stock charger directly in outlet gives, if i remember, the USB post gives and output of half an amp, as the stock charger gives out 2 amps, the USB 3 is mostly for transfer speeds, which are much better with the note 3, i did a test because i still have my S4, transferring a 5GB file on from S4 to PC took 8 minutes with my S4, and 5 with my Note. So yes, it is USB 3. I mean, how else can you charge a 3200mah batteru from 0 to 100 in 1h?????????????
Click to expand...
Click to collapse
The phone does not charge from 0-100 in 1 hour. If it charged in 1 hour then that means that the charger would charge it at 3200mah. The charger only charges at 1800 max, not even a full 2 amps. Thats if the screen is off the whole time. Which is around double the time, 2 hours. If the screen is on it only charges at 1200mah. which would take over 3 hours to charge.
Spyderlotus said:
The phone does not charge from 0-100 in 1 hour. If it charged in 1 hour then that means that the charger would charge it at 3200mah. The charger only charges at 1800 max, not even a full 2 amps. Thats if the screen is off the whole time. Which is around double the time, 2 hours. If the screen is on it only charges at 1200mah. which would take over 3 hours to charge.
Click to expand...
Click to collapse
Well my phone is lying to me because a couple days ago it charged from 0 to 70 in about 45 minutes
Sent from my SM-N900T using Tapatalk
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.
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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.
Hey folks. I have noticed since I got the S5 a few weeks back that it charges mega slowly on anything but the supplied cable and power adapter. When I plug it in with the regular cable to my USB 3.0 laptop in high performance mode, it still charges incredibly slowly. even if I use the regular wall adapter but with a micro-usb 2.0 cable, it still charges very slowly. Is this an issue that I can fix, or do I need to accept that the standard charger setup is the only way to really charge the phone?
What is the Amp output rating of the chargers you are using? The Samsung supplied charger is 2.0
For some reason this phone charges faster than any other phone I've had.
Especially with the supplied charger!
I'm not sure what would cause yours to be slow?
I think it depends on your definition of slow... A computer using USB 3 with a USB 3 cable generally charges at about 1 amp. Use a USB 2 cable and that drops. Same with using the USB 2 cables vs USB 3 cables. Optimal performance is achieved with the factory setup because it is using a 2 amp charger with USB 3 cable. Anything less is going to be slower. Like I said though it just depends on how slow. A bit slower than an s4, under those conditions, would be normal because of the battery increase. A huge time difference would mean something is wrong. But if you are comparing just the factory setup with the other options you can't. That would be apples to oranges.
If I missed something I apologize. Been at work for about 30 hours straight
Sent from my SPH-L720 using Tapatalk
I have recently bought a Galaxy Note Pro 12.2 for use in my car (Tesla style ).
Since the tablet is always switched on in my car and with brightness set to maximum, I am looking for the fastest charging method available.
I now use a 12V QuickCharge 2.0 + regular 2.0 Amp USB charger with a Micro USB 2.0 cable that gives a maximum of about 1500mA according to the Ampere app on my tablet.
This is not enough to prevent the battery from discharging in about 6 hours with the display always on and several apps running!
Would a Micro USB 3.0 cable (the funky wide one) achieve a higher charging current with the proper 12V USB charger? I have a new 12V USB charger on order that can give out 3.4 Amps.
I also have the feeling that my battery is not very good anymore since it discharges so quickly even when connected to a charger. How can I test this properly?
I want to connect the tablet to my car stereo and I originally wanted to do this via Bluetooth connected to a 12V Bluetooth Aux adapter that has an auxiliary output that I can connect to the auxiliary input on my Alpine headunit.
But I have also seen that there are Micro USB 2.0 charging cables with a 3.5mm output as well. Would this give me better audio quality than Bluetooth? Is the signal from the Micro USB port strong enough for the auxiliary input of my headunit?
USB 3 cable is only faster for data transfer, its max for charging is only 2 Amps, the same as micro USB cable, current max is only around 1.7- 1.8 Amp regardless higher output charger.
Like using the 2 Amp charger in Iphone, its max charging current is only around 0.9 Amp
So would a SM-P905 bring any improvements charging wise?
Flavio said:
So would a SM-P905 bring any improvements charging wise?
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The SM-P905V is more selective of cable and charger than the SM-P900. Any input is lower than 1.5 Amp, a message will pop up asking for correct charger, the LTE has a faster CPU than Wifi.
Beut said:
The SM-P905V is more selective of cable and charger than the SM-P900. Any input is lower than 1.5 Amp, a message will pop up asking for correct charger, the LTE has a faster CPU than Wifi.
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But does the SM-P905 actually charge any faster than the SM-P900. I would use a Quick Charge 3.0 (backwards compatible with Quick Charge 2.0 and 1.0) with a Micro USB 3.0 cable.
All the Note Pros goes up 1% for every 3 minutes, you should expect 5 hours for full charge and you cannot go beyond its set of max charging current
Yes, the P905 charges faster than the P900. Qualcomm QuickCharge is only available on Qualcomm devices. The P905 uses a Qualcomm SD800, the P900 uses a Samsung Exynos. While the P905 can benefit from QCC, the P900 has no quickcharge option. (Samsung didn't add that to the Exynos chips until years after the NotePro came out.)
I regularly use my P905 for navigation while playing music, (or for 1080p video playing) and when connected to a 2.1a charger whilst doing so, it charges itself.
By the way, reducing the screen brightness to below 70% may also be sufficient. The screen is by far the biggest drain, and unless you're in direct sunlight, you don't really need 100%.