Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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To truly know you'd have to know the wire gauge and then look up an electricians table to see what the ampacity is.
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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This should be easy to estimate.
A Monoprice USB cable has 28 awg conductors in it. 28 awg is rated for 1.4/0.22 A (VAC) according to here. Those numbers are for chassis wiring and power supply...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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that's what i was afraid of. Sadly, there's nothing listed on the cables themselves, i remember what some of the good ones look like but not all.
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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I see I replied earlier but anecdotally, all my android stuff charges at 2.1A; I never pay attention to the cables used (meaning I don't only use certain cables for this); I've never had a problem...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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This table about wire gauge versus resistance and maximum amp capacity says #28 wire shouldn't be used for more than 1.4 amps for chassis wiring, which probably means roughly a couple of feet at...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Another factor is the manufacture. Doesn't samsung ground one of the data pins to do 2 amp charging?
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Yeah, the problem isn't that there are different types of cables (for different power contexts) but rather just that some of the super cheap ones just aren't very good quality and so don't perform as...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Are not all USB 3.0 type A cable connectors end blue and USB 2.0 white?
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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If you want something you can depend on get a "FAST" charger with a cable the one that came with my Note 4 will work with some cables I have and some will not, they charge but not FAST charge.
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Yeah, you're right. > 90% of all USB cables made today are probably fine. That said, there are some REALLY crappy cables out there. I got one with a surge protector that had a usb port a few years...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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i wanted to know the same question.
can someone show me a usb cable, that i can use for 2.1amp?
ebay link/amazon appreciated. (even if its from china thats ok).
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Lets clarify a few things...
-Current is current regardless of if it's AC or DC.
-Most reasonably high quality usb cables work fine at 2.1A
-If the cable specifies wire gauge, a smaller AWG...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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The power specifications I mentioned above for USB are for the ports, not the cables, though it may be true that usb 3 cables are somehow able to carry more current than a similar quality usb 2...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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I have a question about the USB cables. Are all micro USB cables capable of carrying 2.1 amp at .5v or do you need one spec'd for that? My guess is that the wall charger, or cigarette lighter adapter...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Cables can be a limiting factor. I definitely keep my good ones separate.
The official power specifications for USB are as follows:
USB 2 - 500mA
USB 3.0 - 900mA
However, many...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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It's about how much power is wasted in the cable vs what reaches your phone - longer cables will waste more, and thinner cables will also waste more - best way would be to measure power into the...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Looking at a published old school electricians table likely won't yield much information for those higher AWG sizes, but they definitely publish them online. I think the bigger issue is figuring out...
Do you need a special USB cable for 2 amp charging?
Thread created 09-11-2013 by amigo108
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Talk about bump
Gauge of the cable does matter. The 28/24 gauge cables are what you want. Especially if it's longer. The really cheap cables usually use a thinner gauge and are not able to carry...
