Has anyone else experienced a Volt with an LED that refuses to light up while on the USB? I'm using a 68mm Volt battery with the standard USB that came with it. I swear the thing lit up the first time I charged it, but now. . .nothing! The weirdest part? It totally lights up/blinks/flashes/whatever when I take it off the USB. The charger appears to be working fine as it's light changes from red to blue once the battery is fully charged. I guess my main concern is whether or not I should send this guy back or if it's just a fluke amongst an otherwise perfectly working battery.