2-3 meter sync cables that charge full speed?

Discussion in 'iPad Accessories' started by Absent, May 14, 2011.

  1. macrumors member

    Feb 19, 2010
    Can't find any that are worth a sh. Griffin makes one that's stupid thick, with stupid fat plugs that won't fit through any case, so who wants that garbage. Obviously ohm's law gives us some problems so keeping the same gauge wire while maintaining the necessary current may not be possible.. but I don't buy it yet. 2 amps .. is kind of considerable, but 16 gauge has to be overkill, i.e. the griffin.

    Does anyone have a 2-3 meter cable, identical to the 1 meter Apple cable save for length, that charges the ipad at full speed? I would love you if you point me to it.

    P.S. ..I guess I should explicitly say that I am using the ipad charging brick, and I already have a third party extra long cable that does not charge at full speed. I'm seeing lots of other similar complaints from others about this too.
  2. macrumors 6502

    Jun 21, 2007
    The only one's I've seen are the thick Griffin one's that you've mentioned. Instead of spending $30 on a cable I decided to spend $1.99 on a walmart extension cord and use my normal cable.
  3. macrumors 603


    Oct 31, 2010
    Hamilton, Ontario
    i am also looking for a longer cable that can be used with the ac adapter the ones on ebay give the impression they only work on computer usb
  4. macrumors 6502a


    Dec 4, 2010
    be careful some of the 'regular' 3 meter cables aren't able to handle the current. Expect to spend at least $14 US for a cable.
  5. macrumors regular

    Dec 7, 2010
    Birmingham, England
  6. macrumors 68020

    May 1, 2011
    SF Bay Area
    You might try trying a 3rd-party power brick.
    The iPhone looks at the voltage coming in on the two data pins and that's what sets the charging rate -- 1A when powered from AC, 500mA when powered from USB.
    I assume the iPad works similarly -- 2A vs 1A.
    Given Apple's precision their own power brick is probably calibrated for their own charging cable and any difference in cable could be triggering the lower charge rate.
    Again, we're talking about the voltage on the data wires, not the charging wires, and with the iPhone, a difference of less than 1 volt is enough to trigger the change.
    A different power brick might have a little more 'slop' on the data wire output that the difference in cable won't trigger the lower charge rate.
    Something to try anyway.

Share This Page