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i bought two extra usb cables from amazon, i can't link to them since i don't have enough posts yet, but they're the "EMPIRE USB Data Cable for Verizon HTC ThunderBolt" from amazon
i intentionally looked for some that said for use with thunderbolt in case there was something different than just a micro-usb cable; however, it does not seem that these cables charge as well as the cable that ships. it takes several hours even when trying to charge with the original AC adapter using one of these cables vs the ~1.5-2 hours with the cable that comes with. When trying to use a computer or a car adapter it just holds the charge steady, if using navigation it actually drops battery while plugged in!
is there something i'm missing here? they should all be the same right? can anyone point me to some that actually work? (preferably from amazon since i have gift cards there)
I've had the same problem.
Make sure you are getting the correct voltage. I think my issues are that USB is a slower charge than outlets and the "extra" charger I had was for my bluetooth which had a lower voltage.
strobieone said:
I've had the same problem.
Make sure you are getting the correct voltage. I think my issues are that USB is a slower charge than outlets and the "extra" charger I had was for my bluetooth which had a lower voltage.
Click to expand...
Click to collapse
yeah, i understand that usb from the computer will be a lower voltage, which is what i thought the issue was at first. but then i tried using the original AC adapter with the replacement usb cable and it was slower than the original cable. i don't see why the cable would make a difference, but it definitely appears to.
i downloaded the current widget and can see that just swapping between the OEM cable and the aftermarket cable the charging current is quite different. ~+600ma with the OEM and -100ma to +300ma with the aftermarket (yes at times it was LOSING charge while plugged in using the aftermarket)
roppetty said:
yeah, i understand that usb from the computer will be a lower voltage, which is what i thought the issue was at first. but then i tried using the original AC adapter with the replacement usb cable and it was slower than the original cable. i don't see why the cable would make a difference, but it definitely appears to.
i downloaded the current widget and can see that just swapping between the OEM cable and the aftermarket cable the charging current is quite different. ~+600ma with the OEM and -100ma to +300ma with the aftermarket (yes at times it was LOSING charge while plugged in using the aftermarket)
Click to expand...
Click to collapse
You should never use any other cable than the one provided with your Thunderbolt. On the site it may say that it "Works" with the Thunderbolt but that doesn't mean you are going to get the performance you need out of it. I have had that problem plenty of times with older cables and sadly it keeps me buying the slightly overpriced cables from Verizon so I know that I get what I need.
roppetty said:
yeah, i understand that usb from the computer will be a lower voltage, which is what i thought the issue was at first. but then i tried using the original AC adapter with the replacement usb cable and it was slower than the original cable. i don't see why the cable would make a difference, but it definitely appears to.
i downloaded the current widget and can see that just swapping between the OEM cable and the aftermarket cable the charging current is quite different. ~+600ma with the OEM and -100ma to +300ma with the aftermarket (yes at times it was LOSING charge while plugged in using the aftermarket)
Click to expand...
Click to collapse
It sounds like a defective cable. Check to see how it's charging (AC or USB). If it says USB when connected to the HTC charger, the cable is bad.
I use micro-USB cables I got from Monoprice, no problems.
mike.s said:
It sounds like a defective cable. Check to see how it's charging (AC or USB). If it says USB when connected to the HTC charger, the cable is bad.
I use micro-USB cables I got from Monoprice, no problems.
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Click to collapse
It's not defective, it's just not designed for charging. OP, always make sure it says it is a charger cable, not a data cable, when you buy one.
WeaselWeaz said:
It's not defective, it's just not designed for charging.
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Click to collapse
BS. You have no clue what you're talking about. The TB follows the USB charging specification.
The thing about USB (Universal serial bus) cables is that they are UNIVERSAL. It doesn't matter where you get them from, what they say, or what they are branded. They have to meet certain specs (including materials and current capacity) in order to get the USB label.
If you're having a problem, I am 99% sure the cable is not the issue.
Try out monoprice.com. I've used them for years. You can get 3 wall chargers, 5 USB cables and 2 car chargers (all 1A) for like $25, shipped.
Edit: QFT
mike.s said:
BS. You have no clue what you're talking about. The TB follows the USB charging specification.
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Click to collapse
necosino said:
The thing about USB (Universal serial bus) cables is that they are UNIVERSAL. It doesn't matter where you get them from, what they say, or what they are branded. They have to meet certain specs (including materials and current capacity) in order to get the USB label.
If you're having a problem, I am 99% sure the cable is not the issue.
Try out monoprice.com. I've used them for years. You can get 3 wall chargers, 5 USB cables and 2 car chargers (all 1A) for like $25, shipped.
Edit: QFT
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Click to collapse
yeah, i'm with you, that's why i posed to see if there was something i'm missing and didn't know about. i'm a computer engineer so i know a cable is a cable is a cable, which is why i was like wtf when these didn't work the same.
thanks all, at least i know i didn't miss something and these should work the same.
ive had this problem on every phone. takes forever to charge through usb.
A USB cable is a USB cable is a USB cable is a USB cable.
If you are doing seat of your pants checks on charging, etc, they are never going to be accurate. CPU usage, network usage, etc while the phone is charging will affect how quickly it does charge. The stock charger provides 1000mA to charge the device, if you are using it, or another app is doing something (downloading data, using cpu, etc) it will not charge as quickly because power is being drained as it is being charged.
There is too much that would cause a slower charge state that you can't compensate for by a seat of the pants judgement on charging.
Its all about the mA.
No, thats not a storm. Its just my Thunderbolt layin down this post.
I have the same issue. I have tried four different usb cables with the oem charger and only two charge normally, the oem and one that I had with an old phone that I put a mini to micro adapter on to fit. The other two, one actually micro one mini to micro adapted, charge extremely slow. Yes a cable is a cable, but given I use the oem charger, the only differing things are the cables.
For what it's worth, I hate to burst your bubbles but not all USB cables are equal. And, in fact, not all phones are optimized for USB cables. Just because a cable looks like a USB cable and works as a USB cable doesn't mean that it is ONLY a USB cable. There are quite a few devices out there that can be charged (albeit slowly) with a USB cable but can be charged quickly with a cable that you only think is a USB cable. Take the Nook Color, for instance. The cable that it comes with looks like a USB cable on all accounts, but it's not. I forget which (both are techniques currently used) but either it has extra pins or has a data pin repurposed to provide additional power so it can charge faster. There are quite a few devices out there that are like this, and it seems like the number of these devices just keep growing and growing.
Now these "non-USB" devices still support USB standards, and can be charged via USB standard cables. However, they are optimized for non-USB standards and charge faster with these non-USB cables.
I'm honestly not sure if our Thunderbolts are such a device or not, and if the cables that they come with are such cables. They very well could be, and what the OP claims goes along with that theory. But honestly, I simply do not know.
EDIT:
Oh, and one more example. Go take a look at the custom "USB" cables that Team Blackhat had made that can power Motorola devices in CWM without a battery in the device. This is yet another example of where a USB cable isn't a USB cable.
Having the data pins connected to 5v sources is part of the charger itself; it has nothing to do with the cable.
Every USB cable has 4 pins: two 5v+, a gnd and a 5v- if the second + and - aren't connected to a source in the charger, you will only get a 0.5A charge, and it will go slow. If the charger DOES have them connected, you get the full 1A, and a much faster charge.
If the charger or cable is anything different then it is not USB. End of story. I know some phones have extra pins in the USB location for video out, for example, but those don't interfere with the standard USB pins.
Sent from my ThunderBolt using Tapatalk
necosino said:
Every USB cable has 4 pins: two 5v+, a gnd and a 5v-
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Click to collapse
Wrong, kinda. Check this out: http://en.wikipedia.org/wiki/Nook_Color#USB_port
The Nook Color uses a modified connector with two depths. The first depth is compatible with micro-usb (5-conductor), while the second depth has 12 conductors. This change was made to increase the amount of power available to charge the larger battery of the Nook Color when using the included cable.
Because of this, the USB cable included with the Nook Color is physically incompatible with other devices employing standard micro-usb connectors. However, the Nook Color itself is physically compatible with standard micro-usb cords.
Click to expand...
Click to collapse
Now I realize that calling this a "USB Cable" might be stretching the definition of "USB Cable" (hence the "wrong, kinda" comment) but more than likely, most people have no clue that one cable is different than another, so the end result is that, for all practical purposes, we DO have different types of USB cables.
necosino said:
Every USB cable has 4 pins: two 5v+, a gnd and a 5v- if the second + and - aren't connected to a source in the charger, you will only get a 0.5A charge, and it will go slow. If the charger DOES have them connected, you get the full 1A, and a much faster charge.
Click to expand...
Click to collapse
Close, but not quite.
The pins are +5, Ground, +D and -D. All power is drawn through the +5 and Ground lines. The D lines are used for data transfer.
Per the USB specifications, a device can only draw 100 mA without enumerating (negotiating via USB, implies both ends have "intelligence"). If it can enumerate, it can negotiate for up to 500 mA (e.g. plugged into a PC which has a "driver" which recognizes the phone).
There are also specifications for DCPs (Dedicated Charging Ports). For these, the D+ and D- pins (the center two in a full sized USB connector) on the charger must be connected together with no more than 200 Ohms. These ports must provide at least 500 mA, but can provide more (micro-USB connectors are rated to 1.8 A). That's how the phone knows it can draw more than 100 mA from a "dumb" power adapter.
The TB follows the USB charging spec. Here are some things that can happen.
If it's plugged into a charger which doesn't follow the USB spec (D+ and D- not connected together, these are fairly common), it can only draw 100 mA. It doesn't matter if you bought a "2.5 Amp USB charger," if the charger doesn't follow the spec, a device which does isn't supposed to draw more than 100 mA. That's enough to charge it very slowly when the screen is off and it's idling. If the phone is doing anything, the battery will actually be discharging. This is a problem which seems to be common with many car chargers. A lot of device will ignore the 100 mA spec limit, and draw whatever they can, which is why they will charge from an improper adapter.
It's plugged into a PC with no driver - same thing.
It's plugged into a PC with a driver - it can negotiate and pull 500 mA. This is enough to charge while running in almost all cases (it might be on the edge if streaming video via 4G with GPS on, etc.) It will charge, but not as fast as it could.
For all of the above, a TB will show "USB" as the charging type.
It's plugged into a USB DCP. By spec, these must be able to deliver at least 500 mA. The AC adapter shipped with the TB is marked 1.0 A, and the phone won't draw more than 1.0 A (the most I've seen it use to charge the battery is ~800 mA). This will allows the fastest charging. With a DCP, the TB will show "AC" as the charging type.
Cables can have the same effect - all USB cables are supposed to be basically the same. But, some manufacturer's play loose with the spec. They may have "USB" cables with resistors or other changes inside which signal different things to a device. They may not have proper gauge wiring. It may just be a bad cable. Etc.
I've charged the TB with the stock AC charger using both the stock cable, and one I got from Monoprice. Works fine. I've also got a USB hub I converted to a charging station (follows the spec for USB dedicated charging ports), and that works fine with both the original and the Monoprice cables.
I have run into "flaky" cables, where they only work right if jiggled around a bit. Maybe they've been flexed too much, and have an intermittent connection. Maybe the contacts have gotten dirty. I don't worry about it, I just throw those away, you can get new ones from Monoprice for less than a buck.
Thanks Mike S (Also my initials, lol) That's what I get for posting after staying up a bit too late.
well i just ordered two micro usb cables from monoprice. we'll see if those fare any better.
the only thing i can guess is the power wires are a small gauge in the cables i bought from amazon. monoprice has two different kinds, some use 28awg for both data/power and then they have some that have 24awg for power and 28awg for data. i'm hoping that getting the bigger wire for the power will solve the issue.
also, i've been using juiceplotter and you can visibly see the slope of the charge change when switching just between these cables i bought vs the stock one when using the HTC charger so i'm pretty certain it's the cable.
roppetty said:
i've been using juiceplotter
Click to expand...
Click to collapse
Battery Monitor Widget will do that, and more, including telling you whether it's charging AC or USB.
You can also check the charging type from Home Settings/About Phone/Battery/Battery Status.
NT uses a 12pin micro USB cable as NC, it seems a special standard, if we use standard 5pin micro USB, only connect to computer is OK, but seems have some trouble to charge, could we find any replacement one?
ms2003 said:
NT uses a 12pin micro USB cable as NC, it seems a special standard, if we use standard 5pin micro USB, only connect to computer is OK, but seems have some trouble to charge, could we find any replacement one?
Click to expand...
Click to collapse
You'll need to purchase from B&N (unless somebody else can find another source). It is unique. If you look at it, the connector not only has 12 pins, but is longer. The extra length is what initiates contact for charging.
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
donbowman said:
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
Click to expand...
Click to collapse
I have heard it will only charge on PC via USB if the screen is off. Otherwise, it uses too much power to really charge it.
What would happen if I put the USB port into a power adapter? I use them to charge my phones when I don't have access to my laptop's USB ports.
salvachn said:
What would happen if I put the USB port into a power adapter? I use them to charge my phones when I don't have access to my laptop's USB ports.
Click to expand...
Click to collapse
Make sure it provides the correct amount of power first.
donbowman said:
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
Click to expand...
Click to collapse
only the output will affect? if i found a charge head that provides 2A output will it work?
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
SoonerLater said:
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
Click to expand...
Click to collapse
using the nook cord here with my htc phone charger. all works well
None of my generic USB cords work.
USB Extension cables appear to work with charger
I tried a USB extension cable with the Nook charger and it does work. That means, I think, that the A end of the USB is standard.
I know nobody wants to sacrifice the Nook cable but I'm surprised no one has done this yet. I thought at least the Nook Color cable would be cross-compatible with the NT and someone would have buzzed out the Color cable by now.
There's the bi-color charge LED, but I can't see how they could put a charge chip in there; no room.
This cable is unique....and poorly constructed/misaligned to the 2 prong AC adapter. The USB does not fully insert into the AC Adapter. If not perfectly placed/propped while plugged in to charge, the NT does not charge or charges slowly.
My remedy has been to move the NT closer to the plug so that there is little to no bend in the cable leading to NT.
Will B&N send another if I request online/call? Or, must I unroot and go to a B&N?
SoonerLater said:
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
Click to expand...
Click to collapse
I have an Apple USB extender between the Nook wall plug and USB cable. Charges fine.
Sent from my BNTV250 using xda premium
johninsf said:
This cable is unique....and poorly constructed/misaligned to the 2 prong AC adapter. The USB does not fully insert into the AC Adapter.
Click to expand...
Click to collapse
Yeah, it's terrible. I don't have any charging issues, but the misalignment causes a ton of electricity to leak, so don't leave it on a couch or a fuzzy blanket unless you want (shockingly) pleasant surprises for hours. I wish they would make an all-in-one-piece as well (do they? would be a good add-on). Sheesh, poor design.
With the billions and billions of 3rd party cords out there, it seems amazing that none exist for the nook tablet. I don't really wanna pay 30 bucks for a backup charger.
2mA too much?
I noticed that the official Nook charger output is rated at 1.9mA - I've just bought a generic 2.0mA USB plug adapter and am hoping that it will work with the existing Nook USB cable. I'm hoping the extra 100mA won't fry the thing...
The extra pins in the Micro end of the Nook USB cable are used to support the higher power draw of the Nook when charging at full rate (2.0A) since the max rated current of a Micro-USB connector is only 1.8A. I am sure they also use the additional pins to make the cable proprietary and possibly also control the bi-color LED. The extra pins are set further into the connector so that they do not cause compatibility problems with standard Micro-USB cables.
In addition to this, the charger brick that comes with the Nook has its Data lines shorted, to each other I believe, to indicate to the Nook that it is plugged into an adapter and not a computer.
The combination of those two things is what is needed for the Nook to charge at its full charge rate. Since the USB A end of the cable is a standard 4-pin design, extension cables that offer all 4 pins/wires will work fine.
The Apple adapter (even the 2.0A version) will not work because it uses a voltage divider (couple of resistors) on the data lines to indicate to the iPod/iPhone what style charger it is (1.0A or 2.0A). One of the data lines is held at 2.1V and the other at 2.7V. Depending on which one (D+ or D-) is at what voltage determines what style charger it is. So the Nook does not recognize the "non-zero" voltage values on the data lines and assumes it is a PC, so it will only charge at 500mA.
Other vendors power bricks use the same "short the data lines" trick as the Nook adapter so several others will work. I believe as mentioned already in this post that HTC uses this same method.
WARNING​
Be careful though because if the adapter is rated at less than 2.0A (e.g. 1.0A) you could cause damage or fire. I am not sure if the Nook will slow down charging if it detects the charge voltage dropping if it is trying to pull too much power out of an underrated supply.
If you really want to use your Apple IPad adapter with your Nook Color/Tablet cable you could modify a USB A/A extension cable to disconnect the Data lines and then tie together only the data lines on the side of the cable that will go to the Nook. Again, this can be dangerous, I can not take any responsibility if you attempt to do this.
HTML:
USB A/A Extension Cable
[ ] GND ----------------------------------------------------- GND [ ]
[ ] D+ ------} <-tied to D- cut and taped-> D+ [ ]
[ Nook ] D- ------} <-tied to D+ cut and taped-> D- [ Adapter ]
[ ] +5V ----------------------------------------------------- +5V [ ]
AdamOutler has confirmed that it will charge on any usb cable, but the tab must be off and it will not show signs of charging. I'm pretty sure that this was charging from the computer.
My device battery is way low.. I'm charging on normal USB so it's trickling up at a rate of about 0x0010 per 2 minutes. At this rate, the device will be ready to use in aproximately 1.5 hours... And until then i'm sure nothing will show on the screen.
This may or may not apply to using the Barnes and Nobel cable. I do not have one available though.
So, if you ever come across a situation where the device won't turn on even after being plugged in, leave it plugged in for a few hours. It could have a case of the "sleeping death".
Also, I'm able to verify that the device... even when totally powered off will charge on a standard USB cable.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=20905962&postcount=190
Has anyone else had issues with the end that plugs into the nook bending out of place and preventing the cable from working? Since its the cable that is not working and since the tab is still under warranty can I take it back and get the cable replaced for free?
bscythe said:
the charger brick that comes with the Nook has its Data lines shorted, to each other I believe, to indicate to the Nook that it is plugged into an adapter and not a computer.
Click to expand...
Click to collapse
Ahhh... So we can't use a generic power brick or car charger and have the NT charge at full rate (unless we also muck with the USB cable). Thanks for this info!
Hi everybody!
I'm having some problems when charging my device. I've noticed that when I use the stock charger with the stock micro USB data cable, the phone stops charging and it just charges the battery in 1% to 5% after I plugged it on the wall, and the charging led remains on. So I've left the phone plugged into the charger for 2 hours and nothing happens, the device remains cool and the charger remains cool either.
I tested the following scenaries and the results are pretty weird:
a) I tried using the stock SGS3's charger with my Nokia CA-101 data cable, and the phone charges successfully in about 2.5 hours from 0-100%.
b) I used the stock SGS3's charger and the stock data cable, and charged my old Xperia X10 mini pro and successfully charged 0-100% in about 1 hour.
c) I tried charging my SGS3 with it's stock data cable from USB port and It seems to charge very slowly: 20% per hour.
I don't like using different accesories to charge my phone, because I read somewhere that Samsung uses diferent usb pin arrangement because of the Device ID pin.
So my questions are:
What is happening with the phone/battery/charger/usb cable? They seem working well separately but not together.
Does the samsung micro usb data cable uses different pin arrangement than standad micro usb data cable? or Can I keep using my Nokia CA-101 micro usb data cable?
Any ideas?
Thanks in advance.
lord_czar said:
Hi everybody!
I'm having some problems when charging my device. I've noticed that when I use the stock charger with the stock micro USB data cable, the phone stops charging and it just charges the battery in 1% to 5% after I plugged it on the wall, and the charging led remains on. So I've left the phone plugged into the charger for 2 hours and nothing happens, the device remains cool and the charger remains cool either.
I tested the following scenaries and the results are pretty weird:
a) I tried using the stock SGS3's charger with my Nokia CA-101 data cable, and the phone charges successfully in about 2.5 hours from 0-100%.
b) I used the stock SGS3's charger and the stock data cable, and charged my old Xperia X10 mini pro and successfully charged 0-100% in about 1 hour.
c) I tried charging my SGS3 with it's stock data cable from USB port and It seems to charge very slowly: 20% per hour.
I don't like using different accesories to charge my phone, because I read somewhere that Samsung uses diferent usb pin arrangement because of the Device ID pin.
So my questions are:
What is happening with the phone/battery/charger/usb cable? They seem working well separately but not together.
Does the samsung micro usb data cable uses different pin arrangement than standad micro usb data cable? or Can I keep using my Nokia CA-101 micro usb data cable?
Any ideas?
Thanks in advance.
Click to expand...
Click to collapse
Hi.
I have the Samsung Galaxy S3 it is a remarkably simple phone to disassemble and I'm thankful for that since...
I also had 6 different chargers and cables that would not charge the phone reliably, I took it to Sprint and of course they plugged it in and it charged ok when left alone not moved in any way. Well the charging for me was very intermittent and some cables not at all. It was as if the plug was inserted and removed and inserted over and over again, typical problem if the solder of some connection on the PCB is broken or high resistance for some reason.
I removed the PCB from the phone and examined it to find a micro USB mounted to the PCB with 6 + 5 additional conductors, the 6 that were in the middle of the connector I believe connect directly to the conductors of the USB cable. The other 5, 2 on one side and 3 on the other of the main 6 were broken solder joints on 2 of them. I have a really fine tip solder iron and a microscope which helps but is not totally necessary to re-wet the solder on each pin of the connector. Now my phone works like brand new!!!
I have at least 33 years experience with soldering, so this operation may not be for everyone.
Good luck,
Dude I wish I had the confidence to attempt something like that, well done you
Sent from my GT-I9300 using Xparent SkyBlue Tapatalk 2
lord_czar said:
Hi everybody!
a) I tried using the stock SGS3's charger with my Nokia CA-101 data cable, and the phone charges successfully in about 2.5 hours from 0-100%.
b) I used the stock SGS3's charger and the stock data cable, and charged my old Xperia X10 mini pro and successfully charged 0-100% in about 1 hour.
c) I tried charging my SGS3 with it's stock data cable from USB port and It seems to charge very slowly: 20% per hour.
So my questions are:
What is happening with the phone/battery/charger/usb cable? They seem working well separately but not together.
Does the samsung micro usb data cable uses different pin arrangement than standad micro usb data cable? or Can I keep using my Nokia CA-101 micro usb data cable?
Any ideas?
Thanks in advance.
Click to expand...
Click to collapse
Have you ever done simple mathematic & calcs based on the current output?
You have 2100mAh battery in SGS3, right? And you have STOCK charger. Output = 1A=1000mA => full charge (assuming 100% charging efficacy) would be 2.1hrs. Therefore, 2.5 hrs result from not 100% charging efficacy - simple.
Now, you have USB port in your laptop/computer. From USB 2.0 spec, its output is rated at 500mA => full charge would be more than 4hours.
The difference is result of not 100% efficacy of charging, but this, I assume, you can calculate by yourself (to give you a direction: how much data is spent from a phone to power the screen and to supplot media connection with computer, while charging via USB?)
Sorry that I had to give you some basic calcs from primary school, but... this is what you asked for.
None of my micro USB cables will charge my E970 without a "slow charging" notification except for the cable that came with the phone. Even the venerable 6' monoprice cable isn't up to the task. HTC cords aren't cutting it, either. Does anybody have any 6'+ (ideally a 10') micro B cables that will charge the phone without slow charging? My monoprice 6' cables (i have a bunch) barely keep the phone from losing charge when serving up LTE hotspot, where as the LG cable charges it whilst doing whatever I can to suck down as much current as possible.
Also, I really don't want to short data cables. Somehow the stock LG cable does full current while maintaining data capability, and that's what I'm looking for.
DeathmonkeyGTX said:
None of my micro USB cables will charge my E970 without a "slow charging" notification except for the cable that came with the phone. Even the venerable 6' monoprice cable isn't up to the task. HTC cords aren't cutting it, either. Does anybody have any 6'+ (ideally a 10') micro B cables that will charge the phone without slow charging? My monoprice 6' cables (i have a bunch) barely keep the phone from losing charge when serving up LTE hotspot, where as the LG cable charges it whilst doing whatever I can to suck down as much current as possible.
Also, I really don't want to short data cables. Somehow the stock LG cable does full current while maintaining data capability, and that's what I'm looking for.
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Click to collapse
OEM LG cables can be found almost anywhere used so that shouldn't be a problem. Otherwise, you may be looking at the wrong end of the cable. I have a spare tablet plug charger that puts out up to 2 amps and that seems to be what works best for me no matter what the cable. You might want to look for one of those instead of just buying more cables.
FWIW....I had the opposite result. The cable and adapter which has been near my bedside for the last year (for my HTC EVO 4G) kept giving me the slow charging notification on my me LGOG. If I used the LG adapter and cable all was well, but it was shorter than I wanted. I changed out the adapter and kept the older long cable and still got the slow charging notification. It seems most of my existing cables have this issue...even when using the new LG adapter.
I have not looked into power capacities on the usb cables since I charge each night and don't need to recharge during the day. Didn't expect there to be a throughput difference, but the new LG cable does seem to be different.
Sent from my LG-E970
What is the part number for the oem charger and USB cable?
I use a Samsung charging cable with my LG plug and it charges regularly. I love the Samsung cable because the mirco-usb plug is asymmetric so I always plug it in correctly the first time, every time. Even in the dark. The cable is pretty long too. I don't use the Samsung plug because it only outputs 0.7A though.
http://www.amazon.com/gp/product/B0049IE70I/ref=wms_ohs_product
I also use a cheapo USB male to female extender that I got off eBay at my gf's place and it charges just fine too.
I'm having the opposite problem, I have had my phone for a month, out of no where the original charger is throwing up slow charging icon. Wierd
Sent from my LG-E970 using xda app-developers app
ripbabey said:
I'm having the opposite problem, I have had my phone for a month, out of no where the original charger is throwing up slow charging icon. Wierd
Sent from my LG-E970 using xda app-developers app[/QU
Same problem here, just started about a week ago. It doesn't matter what cable I use it keeps switching between slow charge and regular charge.It charges without problems when the phone is off though. Also when I plug my phone into my pc it keeps disconnecting every few minutes. I'm starting to think its a problem with the phone itself and not the charger or cord as they work fine with all my other devices just not the Optimus G
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I use all sorts of cables and so far the only time I see "Slow charging" is when it's plugged into my laptop or one of my USB hub. Those are the only times I could narrow mine down to.
In the car I use cheapo monoprice cable and charger, in the bedroom it's using the charger and cable from my HTC inspire. By my PC I have a Belkin 6 plug 2 usb wall charger installed with the stock cable, and at the office an iPhone 1G wall plug. I don't think I have even plugged in the oem charger that came with it.
Certain power points seem to not charge but certain power points do the charging job perfectly?
what's a "power point"?
Glebun said:
what's a "power point"?
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The place where you plug your charger in.
that's a faulty charger then
Define 'power point'. Are you talking about different Usb cables, different chargers, different wall sockets or jiggling the cable's connector to the phone?
In the latter: replace the cable and you may need to clean the contacts on the phone (eg with a hard toothbrush)
Sent from my GT-I9300 using xda premium
I think he means wall sockets
ysah i think he means wall sockets also at which it would still need to be a fault with his charger as its there that the voltage is converted to the voltage and ampherage that the phone uses.any differences in voltage that is given to the socket would most likely be on a very small scale
Ah I see. Does Sammy do one to one exchanges of the charger if its faulty?
Sent from my GT-I9300 using Tapatalk 2
Does anyone here use aftermarket chargers? Thinking of an innergie one.
Sent from my GT-I9300 using Tapatalk 2
I swapped.my cable, seems to charge better than the stock one..
Sent from my GT-I9300 using Tapatalk 2
I have the same problem, but with all cables
I just posted to an other threat about charging problems, so i will copy/paste it:
I have the problem that the phone only want to charge with soms chargers.
I can connect the phone to the original charger or to a pc or any device without problems, the phone will charge.
Even with an old blackberry charger (only 2 wires, no data) and car charger can i charge without any problem!
But when i connect the phone to the htc charger of my old phone, or to an iphone charger i see the phone is connected but it won't charge.
When i open batterymonitor i see that the charger is connected, but the phone still use his battery.
I tried this with all kinds of charders and all kinds of micro usb cables. Then i thaught there was maybe a resistor or chip or something build in some chargers, because i couls only charge with chargers with 2 wire cables.
Then i took a usb extension cable and i disconnected the two data wires so only the + and - 5V cables were left,
but still no success. If anybody knows where the problem is, please let my know
with kind regards! Martijn
discovered the problem
blaffer4 said:
I just posted to an other threat about charging problems, so i will copy/paste it:
I have the problem that the phone only want to charge with soms chargers.
I can connect the phone to the original charger or to a pc or any device without problems, the phone will charge.
Even with an old blackberry charger (only 2 wires, no data) and car charger can i charge without any problem!
But when i connect the phone to the htc charger of my old phone, or to an iphone charger i see the phone is connected but it won't charge.
When i open batterymonitor i see that the charger is connected, but the phone still use his battery.
I tried this with all kinds of charders and all kinds of micro usb cables. Then i thaught there was maybe a resistor or chip or something build in some chargers, because i couls only charge with chargers with 2 wire cables.
Then i took a usb extension cable and i disconnected the two data wires so only the + and - 5V cables were left,
but still no success. If anybody knows where the problem is, please let my know
with kind regards! Martijn
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Click to collapse
In the case there would be more people with this problem:
The problem is not caused by the charger but by the cable. If i use a cable that's a bit to small or to long i get problems. If you want a longer cable to charge your phone, you need a good and big one, not a cheap tiny cable. I only use good cables now and had no more problems for the last year or so...