Last week i finally took the plunge and bought a Kangertech EMOW after using cig alikes for the past year. I must say I'm very impressed and satisfied. I did have an issue last night though with my battery, I charged it and unplugged it when the green light came on. I was out with some friends when the battery died on me, i could not have taken more than 50 hits from it. Any ideas on why this happened?