Make the user guide your next read. But not in bed, it's a real snoozer.Joe Paul Jr. said:Ahhh... the light turns GREEN when it's fully charged? Whew. I kept saying to myself, "That sucker's been plugged in all night and the light is still on?? Isn't it charging properly??" I have GOT to stop assuming that the K2 does things the same way as the K1.