A non-aqueous electrolyte and a lithium secondary battery using the same are provided, which satisfy both flame retardancy and charge-discharge cycle characteristics, and attain a longer lifetime of the battery. A normal-open type activation switch is mounted on the insulative frame and includes a first pin and a second pin identical and parallel to each other. On the base, there are multiple cobbles or raised regions separated by false joints. A power control unit can be used to control regulators. power for a predetermined first period of time and then with the reduced transmitting power, which matches the mobile station received as the weakest one, for a predetermined second period of time. The liquid fill line assembly has a venturi assembly adjacent the bottom of the ullage space vessel.