Wondering if it matters how often or when to charge batteries. Most rechagables (if not all) recommend draining the battery before charging again to increase battery life. It seems as though some vapers are charging continuously to ensure they always have a spare ready. Is there a recommended method and timing for charging. I also wonder about the light on charger. When I recieved my kit, it said to charge battery for 8 hours. The light said it was fully charged after an hour. Anxious as I was to get started I started using it then with no probs. Should I have waited or doesn't it matter as long as the indicater light turns green (or blue on USB)?