I did use search, but so many threads, not enuf time! I know "they" say 200 charges for a Li-Ion. But how does that transfer into real time? how long do regular batts last for a 510 batt, and how long for a mega batt? I know this is kinda nebulous, depending on how often you "push" the button, but averagely speaking? any input? my regular batts are going 2-3 hours, and my new megas are lasting 5-7!!!! huge difference. but Im refering to the "total" life........just ballpark.........