Well like all the newbie drippers that come into vaping all i wanted to do was chuck some clouds like rip trippers n walk around with a mech n now a week af5er my 2nd hand mech sitting on my table i pull it out throw the battery in change the wick drip some zombie blood from voo doo n low n behold this thing is a chucking but only for a short while coz ,since im a newbie drippper i dint know the approximate time a half charged battery will last till i get into the red zone ,how do u guys kniw for sure u need a new battery share ur thoughts coz for me ,wen i fire the mod it barely fires unles i really hold tge fure button share ur thoughts for a newbie plz guys