Originally Posted by mechgamer123
Yes it does, or at least the meter says it does lol. It disables data transfer and uses the extra two pins for charging as well, so it should in theory.
Hmm, if you have 30 minutes to get as much juice to your phone for the rest of the day, would you:
A: Slowly charge it to save the battery and have it die in 2 hours
B: Fast charge the battery to have it die in 4 hours, with a very small decrease in capacity that you won't notice because you'll replace the battery or get a new phone by then?
LOL, I laughed IRL at that one~
Technically it doesn't use the data pins to charge.
I did my research on this one because of project-cyrostat (high speed usb charger)
The data pins are actually for telling the phone that it can draw x amount of current from the port that it's connected to.
There are 3 power standards for USB ports:
Standard Downstream Port (SDP) = 500mA max, data transfer allowed.
Charging Downstream Port (CDP) = 1500mA max, data transfer allowed.
Dedicated Charging Port (DCP) = 1500mA max, no data transfer.
Most of the older computers has SDPs therefor charges slower (or not charge at all since some phones will only charge from CDPs and DCPs).
For most android devices, shorting the data pins will tell the phone that it's connected to a DCP
While for apple devices it's applying 2.7V on D+ and 2.0V on D-.
However for my MI2S phone, it will draw 1A from anything it's plugged into except for SDP.
Edited by b1o2r3i4s5 - 11/18/13 at 8:59pm