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Charging cord vs standard USB data cable

OP RedWingsFan

31st January 2012, 01:54 PM   |  #1  
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Is there a difference between a charging cord for the EVO and a standard USB data cable for our phones? I thought I remember reading a thread about the charging cable being different so charging faster.

The reason I ask is I need a 15ft USB charging cable for my EVO.
31st January 2012, 03:51 PM   |  #2  
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It's all based on the power drawing from the source. I don't think the cable makes a difference.
As a general rule, USB charges slower than AC.
31st January 2012, 03:54 PM   |  #3  
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I can tell that there is a difference!

I used normal USB cable from my other mobilephone (xperia x8, and Nokia 5230) and my HTC Evo 3D didnt recharging, he was showing that he is recharging but no... recharg was so slow that he wasnt able to recharg battery. After couple of hours from 20% it went to 18% of battery
31st January 2012, 04:05 PM   |  #4  
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Quote:
Originally Posted by Akasa Fox

It's all based on the power drawing from the source. I don't think the cable makes a difference.
As a general rule, USB charges slower than AC.

I understand that trying to charge off the computer will be slower. But what I was asking is the cord which you plug in to the USB wall adapter (that comes with the phone) different from your average micro-usb cord. Because at the end of the day, the cord we get from the factory to charge is a micro-usb cord.

But I think I read somewhere that there is a difference in the pins or something that identify as a charging cable instead of a data cable allowing more power to pass through.
31st January 2012, 04:38 PM   |  #5  
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Not sure but my knowledge tells me that when u plug USB cable to poweradapter it just becomes regular charger and phone knows this by higher voltage coming to it...while USB plugged in to laptop or computer less voltage tells the phone and as well as the drivers from computer tells phone that's its USB cable link! Essentially cable is same but the.power adapter in front just converts USB to 2-pin regular power source!

Sent in 3D
31st January 2012, 04:43 PM   |  #6  
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Quote:
Originally Posted by Boss2212

Not sure but my knowledge tells me that when u plug USB cable to poweradapter it just becomes regular charger and phone knows this by higher voltage coming to it...while USB plugged in to laptop or computer less voltage tells the phone and as well as the drivers from computer tells phone that's its USB cable link! Essentially cable is same but the.power adapter in front just converts USB to 2-pin regular power source!

Sent in 3D

I just did an experiment with my charger. I used the stock HTC charger that came with the phone. Plugged in my HTC provided cable, went to battery status, and it said "Charging (AC)".

I then tried another micro-USB cord I had laying around and again it said "Charging (AC)".

So my guess is the cord doesn't matter. What I'd like to see is if there is a difference in power that the cord is allowing to be pulled between the two. Anyone know an app for this?

Next I went and took the Griffin charger I bought for my iPad2. It is rated up to 2.1amps for output so it should be sufficient enough to charge our phones just like the stock charger. When I plugged it in using the stock HTC cable and the standard Micro-USB cable, both read: "Charging (USB)". Again, I wonder if there is a difference in power being drawn because it thinks it is USB.
Last edited by RedWingsFan; 31st January 2012 at 04:45 PM.
31st January 2012, 04:50 PM   |  #7  
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The cord probably doesn't matter as long as it's a decent cord. I'm sure there's some POS cords that are not going to deliver much at all, but any USB cable I've bought from monoprice has charged just fine, and has done its full output either via a usb port or if I plug that cable into a usb->AC adapter.
31st January 2012, 07:10 PM   |  #8  
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Quote:
Originally Posted by RedWingsFan

What I'd like to see is if there is a difference in power that the cord is allowing to be pulled between the two. Anyone know an app for this?

Elixer 2! Grab it from the market, select 'status bar' and set it up with battery current, which will then allow you to see your current drain (or charge) rate by pulling down your menu!

(lots of other great things in elixer! I urge everyone to check it out! It's totally replaced extended controls for me! Probably the best utility in android since TB!)



Sent from my HTC EVO 3D GSM using Tapatalk
Last edited by vanisleguy1976; 31st January 2012 at 07:15 PM.
1st February 2012, 01:10 AM   |  #9  
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The phone sets the charging rate based on if the data lines of the USB cable are active. If they are active, the charging rate is limited to the standard 500mA USB supply. If open, the phone goes into AC mode which allows up to 2A (2000mA) charging rate depending on the power supply.
1st February 2012, 05:00 AM   |  #10  
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I'm not entirely sure if MicroUSB is different than some of the other standards out there. But there are indeed some usb cables that are ''Data'' cables and do not charge. I have an old flip phone for my son and his usb data cable connects to the pc fine, we can transfer music to his microsd card etc. However it does not charge his phone at all.

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