24/28 awg cables will not fast charge the G2. Not the sprint model anyways. I found some Link Depot 22awg cables on new egg in 6' length recommended on another thread. Ill post back when they come in. They are about $3.89 each if you buy more than one.
All others users say they work great. We shall see.
Sprint LG G2 >> Current Owner >> Stock, Debloated, Rooted, TWRP'ed
Sprint HTC One >> Current Owner >> Stock, Unrooted (Till Kit Kat Comes)
Sprint Moto Photon >> Current Owner >> Rooted, Docked, Converted to XMBC & Android Media Box
TMO HTC G2 >> Past Owner >> Imo, The best Phone ever made design wise.