I'm toying with the innokin pen style VV 800mah, and the ego vv 650mah. Both are in price range and seem similar. Sometimes dragging my Vamo around is a hassle, so I'm looking for something smaller when I'm runnin around. Anyone own one of these that can tell me how long battery life is, and their overall ownership experience? I typically vape about 12 drags @ 5 sec per drag. Advice on similar sized mod's in price range is appreciated as well. Thanks