Different gauge on the power wires give different results during charging. The original .5A of USB worked well with 28 AWG, but you need to go with 24 AWG to get 1A or more out of a charger. Sadly very few cables list this kind of info.<p>And even when you have the proper cable, you can run into the problem that the charger manufacturer thought the Apple way was the proper way.<p>Thing is that Apple has some very odd resistor setup on the data pins to indicate max A out of their chargers, while the USB charger spec basically says to short the data pins so that the device can sense it.<p>Try to charge a non-Apple device in an Apple type charger and you can get anything from full to .5A, depending on how clever the device engineers were...