Related
After using a wall adapter to micro USB port charger that only supplies 0.7 A instead of the 1 A the stock charger does, the lower adapter got very hot. Does the phone still try to draw one amp if its not connected to a PC through usb? Considering the standardization of micro-usb it would seem like G2x owners will try to use chargers at friends houses for other phones and it may not be the safest thing. Any input?
My factory LG charger only provides 0.7 amps.. but I use my hd2 charger that provides 1 amp cause the phone charges a little faster on it.. so I don't understand what your actually trying to say?
Sent from my LG-P999 using XDA Premium App
k00zk0 said:
After using a wall adapter to micro USB port charger that only supplies 0.7 A instead of the 1 A the stock charger does, the lower adapter got very hot. Does the phone still try to draw one amp if its not connected to a PC through usb? Considering the standardization of micro-usb it would seem like G2x owners will try to use chargers at friends houses for other phones and it may not be the safest thing. Any input?
Click to expand...
Click to collapse
Phone can only draw as much power as the charger supplies, up to something like 1 amp. If the charger supplies less than that, then it only draws what the charger supplies. If the charger supplies more than 1 amp, then it will still only draw the 1 amp that it needs. The more important thing to ensure is that the voltage of that charger is the same as the stock charger.
G2X CM7
squish099 said:
My factory LG charger only provides 0.7 amps.. but I use my hd2 charger that provides 1 amp cause the phone charges a little faster on it.. so I don't understand what your actually trying to say?
Sent from my LG-P999 using XDA Premium App
Click to expand...
Click to collapse
It's strange we got different chargers. This one outputs 4.8V at 1.0A. It also squeals when the phone is in standby. If i wake it it stops humming. Model STA-U13WR2. I wonder if charge rate has to do with anything bad? When the charge says completed and it is plugged into a USB port, it will charge for another hour at times. Makes sense since a high charging rate will cause the battery voltage to spike and read as if the charge is complete when it's still got room.
OK, first off I'm on infused v2.0.2 with bedwa's infusion kernel. I've been reading your threads and noticed what I think is a problem with my charge current. After I applied the /1.83 operator to current widget I only see a max of 475 mA on AC outlet power on a charger I bought. The charger is a Griffin charger that says 1A. The USB cable I'm using is the stock cable. When I use the stock charger I get ~250mA. What's happening here? I can get 1100mA on my car charger pre-operator in current widget which I'm thinking is roughly the 600mA max. Its an AT&T charger made for the aria (I think). Is something wrong with my phone? I think it charged the same on stock but not sure. What should I do?
Thanks for any help. You're the best I know when it comes to charging info.
Sent from my SAMSUNG-SGH-I997R using Tapatalk
02ranger said:
OK, first off I'm on infused v2.0.2 with bedwa's infusion kernel. I've been reading your threads and noticed what I think is a problem with my charge current. After I applied the /1.83 operator to current widget I only see a max of 475 mA on AC outlet power on a charger I bought. The charger is a Griffin charger that says 1A. The USB cable I'm using is the stock cable. When I use the stock charger I get ~250mA. What's happening here? I can get 1100mA on my car charger pre-operator in current widget which I'm thinking is roughly the 600mA max. Its an AT&T charger made for the aria (I think). Is something wrong with my phone? I think it charged the same on stock but not sure. What should I do?
Thanks for any help. You're the best I know when it comes to charging info.
Sent from my SAMSUNG-SGH-I997R using Tapatalk
Click to expand...
Click to collapse
475 mA means you're in USB charging mode.
Which is what will happen with any iDevice charger. iDevice chargers use resistors to set D+ and D- at either 2.0 volts each or 2.0 on one and 2.8 on the other. Our phone treats this as USB.
You need a cable (I think AT&T's dedicated charge-only cable will do this) that shorts D+ and D- together if you want to use an iPod/iPhone/iPad charger. (Exception - car dock hides the charger's D+ and D- and the ID resistor in the dock takes priority.)
250 mA on stock charger sounds odd unless the battery was almost full.
Hah. Duh! My battery was at ~95% and I plugged it up to the stock charger to see what the current was. That was my fault. I didn't think about the iDevice thing but I remember reading it now. I think that explains it.
Thanks!
Sent from my SAMSUNG-SGH-I997R using Tapatalk
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
phiffoo st o
Studiozut said:
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
I don't have a dock nor am I trying to charge the TF700 from a PC USB port. The Apple charger puts out +5 volts to anything plugged into to it and the TF700 apparently "knows" when the Apple charger is connected to it because it turns on if it's off.
Haidozo said:
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Click to expand...
Click to collapse
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
You are correct. With the TF700 turned off, an hour of charging with the 2A Apple charger had increased the battery level from 29% to 34%. I expect the TF700 to be fully charged in only 14 hours!
Thanks.
Have you considered a power inverter? I use this one with my A100 though I use a FM transmitter to charge my phone.
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
I have that same exact charger. do you use the "I" or the "S" USB port?
I never knew what the difference between the two were
EDIT...i shouldve read the thread lol...you modified yours
I ordered a pair of cables from eBay item # 320942102464. A house charger and a car charger. I just plugged in the dock and seems to be working fine.
USB 3.0?
FrontRowJoe said:
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
Click to expand...
Click to collapse
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
You need 15v to charge the Pad (I kept thinking 11, but the adapter says 5V or 15V output). This makes sense since there are more pins. Standard USB has 5v rails (ther are 4 pins, I 5v power, Data+, Data-, ground). Since our chargers are 40 pins, my assumption is that there are more pins dedicated to charging and multiple pins dedicated to data (possibly a few that are dedicated and some that are for whatever data is being passed through (assumption)). If the adapter is outputting 11v then it can send more power through the cord and multiple pins can push electricity through. When you are only pulling 5v (i.e. most AC->USB transformers) you will need a lot more time to charge, hence the trickle effect (and don't turn on the screen!)
It can be charged with 5v if the tablet is off.
There is a jumper in the USB cable itself that kicks the Asus charger into 15v mode so it doesnt accidentally fry your devices if you plug in, say, your cell phone to charge for a bit.
To make a custom cable just throw 15v across three pins in the connector (5v each). You can find all the info here: http://forum.xda-developers.com/showthread.php?t=1633747
Yes, i know its for the prime, the connector is exactly the same, the pinouts SHOULD be identical.
DIY approach?
I've got a TF700T and a TF201 dock and a misplaced charger. I ran into the same trouble that a lot of people here did ....... generic chargers not working, USB on my computer only trickle charges the tablet, nothing for the dock, etc.......
After much poking around I learned that both require 12 volts to charge. That said I dug thru my junk and found a 2.2a 12v DC wallwart. I hacked apart a USB extension cable for it's female end, broke out my breadboard and put together a 12v USB connector... that after several days of charging and draining.... charging and draining .... works like a champ.
So to be a bit more specific, pin 1 that's normally 5+ volts I'm supplying 12+. Pin 4 is ground same as always and that's it. If you wish let me know I can probably throw up a little illustration or something.
Since I did that I've refined the whole thing a bit, cleaned it up, wired everything directly and heat shrinked the whole assembly.
It will charge both together or either one by itself in just hours EVEN while using them..... heavily. No overheating, no troubles.
HTH
AnakiMana said:
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
Click to expand...
Click to collapse
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Bluemgt06 said:
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Click to expand...
Click to collapse
The Asus charger switches its output to 15V from 5V when a USB3 plug is detected. If you need an extesion cable to charge the Transformer, you'll have to use USB3 extension cable. If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Kraka said:
If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Click to expand...
Click to collapse
Thanks for the warning - I hope there are no cables with USB3 and micro-USB2 plugs though.
I need an extra USB cable for charging my N4 in my car because I use a Scosche dual USB charger 2.1 amp. Will any USB cable be fine like the one in the link below or should I be looking for anything specific? I don't want something to mess up my N4 battery.
http://www.amazon.com/gp/aw/d/B00AHEQ6FC/ref=aw_cr_item_title?qid=1360505932&sr=8-19
Is there anywhere that sells the original LG travel charger?
Sent from my Nexus 4 using xda app-developers app
I was wondering the same thing. I'd like to get a couple extra USB wall chargers and micro USB cables to go with them. I'd like it to be as efficient and safe as possible for my Nexus 4 as well as friends that may need a charger. (N4 taking priority here)
Sent from my Nexus 4 using xda app-developers app
Well as long as the power supplied is 5V (the usb standard) and under 1.2 amp (the output of the factory wall adaptor) you should be safe not burning out your phone. If you are just asking about a usb to micro usb cable then it shouldn't matter since the cable should supply the right voltage anyways.
Sent from my Nexus 4 using xda app-developers app
Panzer500 said:
Well as long as the power supplied is 5V (the usb standard) and under 1.2 amp (the output of the factory wall adaptor) you should be safe not burning out your phone. If you are just asking about a usb to micro usb cable then it shouldn't matter since the cable should supply the right voltage anyways.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
The phone will only take the amps that it needs. I would get a 2A+ charger to be on the safe side.
dinosaur1 said:
I need an extra USB cable for charging my N4 in my car because I use a Scosche dual USB charger 2.1 amp. Will any USB cable be fine like the one in the link below or should I be looking for anything specific? I don't want something to mess up my N4 battery.
http://www.amazon.com/gp/aw/d/B00AHEQ6FC/ref=aw_cr_item_title?qid=1360505932&sr=8-19
Is there anywhere that sells the original LG travel charger?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Call me crazy/oc/weird but I bought this: http://www.buychina.com/items/lg-f1...p880-original-line-charge-charger-qrwrvpsqjhm
I'm perfectly aware I can use other chargers and cables but I like to have an oem extra if I need it. 10usd and 2 weeks wait isn't so bad
Sent from my Nexus 4 using Tapatalk 2
I use this with my nexus 4
http://www.amazon.com/PowerGen-Dual...71&sr=8-1&keywords=powergen+dual+port+charger
Actually used it for my Nexus 7 and when I got my Nexus 4 I always used it for that. Never even bothered opening up my stock charger or cable. Dual port is nice if you want to charge 2 devices at 1 amp each without having a bunch of chargers plugged in.
thephantom said:
Call me crazy/oc/weird but I bought this: http://www.buychina.com/items/lg-f1...p880-original-line-charge-charger-qrwrvpsqjhm
I'm perfectly aware I can use other chargers and cables but I like to have an oem extra if I need it. 10usd and 2 weeks wait isn't so bad
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Woah! Thanks man! I've been looking everywhere for this! Haha
I love the OEM USB Cable, especially cause it fits with all of my cases.
I would love to get the OEM charger, but after my current one acting up (usb wire for some reason keeps making it say usb charging despite being plugged into wall outlet), I'm cautious.
facetubespam said:
I would love to get the OEM charger, but after my current one acting up (usb wire for some reason keeps making it say usb charging despite being plugged into wall outlet), I'm cautious.
Click to expand...
Click to collapse
This is one of the reasons I bought the oem charger. Had the ac/usb issue. Changed wires and still does that. Used my gnex charger and it didn't give me problems. So I said it must be the charger itself. Bought the new one and now I'm confident when plugging my phone in. No more issues on the ac/usb charging thing
Sent from my Nexus 4 using Tapatalk 2
thephantom said:
This is one of the reasons I bought the oem charger. Had the ac/usb issue. Changed wires and still does that. Used my gnex charger and it didn't give me problems. So I said it must be the charger itself. Bought the new one and now I'm confident when plugging my phone in. No more issues on the ac/usb charging thing
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Hmm... for me, I changed the wires and it works. I think I would rather just save the $10 and put it towards the "wheneveritisreleased" Wireless Charging Orb.....or the TYLT VU when it comes out in April.
Hi guys, I have a few micro USB chargers lying around. Just wondering if using these would harm my N4:
12 V, 500mA
5 V, 2.1 A
5 V, 1.9 A
5 V, 1 A
The 12 V 500mA charger makes my phone's screen go haywire (applications opening and closing by themselves) but it does charge the phone.
facetubespam said:
Hmm... for me, I changed the wires and it works. I think I would rather just save the $10 and put it towards the "wheneveritisreleased" Wireless Charging Orb.....or the TYLT VU when it comes out in April.
Click to expand...
Click to collapse
at least you narrowed it down fast to the wire. in my case after swapping just the wires it was still the same. then when i used the original n4 charger on my gnex, my gnex suddenly had the ac/usb charging issue. my problem with not getting another charger was i sometimes charge both phones at the same time so i needed one more. good thing a couple of searches led me to the buychina site and now all works well.
I am very interested in this topic as I believe I'm going to need a new USB > MicroUSB cable. My cat accidentally knocked off my N4 while it was charging using the original cable/charger. While it seems the charger itself is okay, the cable is what I am worried about. The end seems slightly bent and, while it will plug into the N4 (which will report charging) it doesn't go as "easily". From visual inspection I think the problem is with the cable's microUSB end; I really hope that the N4's socket itself is not bent/damaged in anyway, but I cannot see any visual signs thereof.
I was really hoping to pick up another OEM charging kit, but it appears that (assuming they are legit ) that one can only find them on Taobao/ChinaBuy as linked above? I was hoping Amazon would have them. With this in mind, will there be anything specific to look for finding another "USB to MicroUSB cable" from Amazon to use with the existing, undamaged OEM charger? Thanks.
I'm no expert but I believe there shouldn't be any issue of you get a different cable. I've used an HTC, Samsung and Asus calls with the LG charger and there aren't any issues. If it's just the cable you need, go with Amazon. It'll be faster
Sent from my Nexus 4 using Tapatalk 2
thephantom said:
I'm no expert but I believe there shouldn't be any issue of you get a different cable. I've used an HTC, Samsung and Asus calls with the LG charger and there aren't any issues. If it's just the cable you need, go with Amazon. It'll be faster
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Great, thanks. It seems logical that all "USB A > MicroUSB B" cables should be capable of the same thing, but I just wanted to be sure I wasn't missing something that would say, impair my ability to use this cable for not only charging with the OEM wall charger, but charging from my PC's USB ports, connecting to said PC via USB Debugging for rooting/flashing etc...
thephantom said:
Call me crazy/oc/weird but I bought this: http://www.buychina.com/items/lg-f1...p880-original-line-charge-charger-qrwrvpsqjhm
I'm perfectly aware I can use other chargers and cables but I like to have an oem extra if I need it. 10usd and 2 weeks wait isn't so bad
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Thanks! How did you find this site?
Sent from my Nexus 4 using xda app-developers app
dinosaur1 said:
Thanks! How did you find this site?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Oh just by looking at different cases and then someone from xda mentioned that site. Did some searching and I saw it had the chargers too. Couldn't find it on eBay or Amazon before. Haven't checked lately though
Flowed and Tapped from my Nexus
I am currently using a Trent car charger with a LG OEM micro usb cable, charging at 5V at 1A. http://www.amazon.com/dp/B009HD44US/ref=pe_175190_21431760_M3T1_ST1_dp_1
For travel and and backup, I use a genuine LG Travel Charger with a LG OEM micro USB Cable, which also charges at 5V at 1A. http://www.theaccessoryking.com/lg-accessories/travel-chargers/ssad0033801/travel-charger-wusb-charging-cable-micro-usb-platform.html
innumerabilis said:
Hi guys, I have a few micro USB chargers lying around. Just wondering if using these would harm my N4:
12 V, 500mA
5 V, 2.1 A
5 V, 1.9 A
5 V, 1 A
The 12 V 500mA charger makes my phone's screen go haywire (applications opening and closing by themselves) but it does charge the phone.
Click to expand...
Click to collapse
DUDE!!!! The 12V charger can KILL your phone.. The phone is designed for 5volts..
As long as the charger supplies 5 volts it is okay... even a 10 amp charger will work fine (if availiable ).. The current is controlled by the device (nexus 4 in this case).. It will draw how much current it requires.. Voltage on the other hand is decided by the charger.... 12volts will fry the device...
Techguy18 said:
DUDE!!!! The 12V charger can KILL your phone.. The phone is designed for 5volts..
As long as the charger supplies 5 volts it is okay... even a 10 amp charger will work fine (if availiable ).. The current is controlled by the device (nexus 4 in this case).. It will draw how much current it requires.. Voltage on the other hand is decided by the charger.... 12volts will fry the device...
Click to expand...
Click to collapse
Oops, thanks for this heads up! I've used the 12V charger for weeks without any noticeable damage (though the screen goes haywire when it is plugged in). I'll switch to the original N4 charger now.
http://www.ebay.com/itm/3-1A-Dual-U...S_Cell_Phone_PDA_Chargers&hash=item565a917530
hello
My stock charger is us for galaxy s4 (samsung regular charger)
and then I found this (link above) with 2.1A
is it matter charging via 2.1A and not 2A? what is the different? it will charge faster/slower?
thanks
In Stock kernel there is current limit 1.9A. So everything above it, will be the same as 1.9A.
In reality, you will find that even 2.1A charger doesn't supply even 1.9A. Chinese charges definitely don't supply current thay claim. And beware of them - you may fry your device by such cheap charger.
Also, it heavily depends on USB cable as well. It has to be very short and very thick.
I have a Mediabridge car adapter that has a 2.1 amp charger on it. When I charge my S4 with it it barely charges faster than the 1 amp charger does. I think it charges at either 1.3 or 1.7 amps, sorry can't remember exactly.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
jev3gs said:
I have a Mediabridge car adapter that has a 2.1 amp charger on it. When I charge my S4 with it it barely charges faster than the 1 amp charger does. I think it charges at either 1.3 or 1.7 amps, sorry can't remember exactly.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
How do you measure the exact amperage that it charges at?
Badelhas said:
How do you measure the exact amperage that it charges at?
Click to expand...
Click to collapse
I don't have the equipment to measure it exactly. So what I did was charge my phone from 50% for 40 minutes on my stock Samsung wall charger and then recorder the percentage it increased. I then took that number and assumed it was charging at 2 amps and used it as a baseline. Then I did the same test with my car adapter and recorded the results. The I figured out the percentage difference and came up with me estimates. I just don't have the data in front of me anymore but I remembered it being somewhere between 1.3 or 1.7.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
The stock charger is fast at charging this phone. On my s3 it took forever . I would stick with stock
Sent from my SPH-L720 using XDA Premium 4 mobile app
ok thanks
more people?
ok thanks
more people?
Chargers, power supplies, etc, don't "decide" the amps that go to a device - the device "draws" a certain amount. Just because a lamp is plugged into a 20amp circuit in your home doesn't mean 20 amps are going to be shoved through the bulb.
So if, as sorg says, the phone is only going to "ask" for 1.9a, you could plug it into a 5 amp charger and it would make no difference.
darixtorento said:
ok thanks
more people?
Click to expand...
Click to collapse
You already got your answer above.
No, your phone will NEVER charge faster than 1900 until a developer comes along and figures out how to hack the system to allow this. And it would be a potentiallly STUPID idea to charge faster than Samsung has deemed safe.
Go here to find out how to test your charging rate:
http://forum.xda-developers.com/showthread.php?p=46156385#post46156385