Most button-activated e-cigarettes must be manually turned on - this is the first thing to check if you think you have a fault or if the battery button is not illuminating when pressed. Most 2nd generation e-cigarettes have a five-click function for turning the battery on and off. To turn your battery on press the button five times quickly (within two seconds). The battery button should blink three times and upon being held down it should light-up. To turn the battery off click the button five times quickly (within two seconds). The battery button should blink 3 times and when being pressed it should no longer light up. The on and off function should be used when the battery is being stored somewhere where the button could be accidentally pressed such as a pocket or purse.