Originally Posted by jejb
The charger that came with the phone is the fastest charger I've ever used. Not sure if the cable is that important, though.
There's another thread here where I learned something new about voltage drop. I usually think of it in higher voltage, such as generator runs, but it turns out you can have significant voltage drop in 5 volt over just 3 feet if the gauge of the wire is not sufficient. As I recall, you should have 24 gauge wire, where many USB cables are 28 gauge.
Anyway, not terribly up on battery charging, but I would suspect a voltage drop would significantly impact charging times.