options: 18650 Material: Aluminium 6082 Outer diameter: 22mm Battery options: 3.6V, 5V, 6V, 7.4V Some trivia: The megalodon (pronounced /ˈmɛɡələdɒn/ MEG-ə-lə-don , "big tooth" in Greek , from μέγας and ὀδούς) was a mega-tooth shark that lived in the prehistoric times, during the late Oligocene epoch and Neogene period, [1] approximately