Newest and Latest Vape Battery! This is a key-fob style vape battery that operates like a switchblade. Once you press the button a concealed (hidden) vape cartridge swings out of the unit and clicks into place automatically. When you are done, simply press and hold the button while you swing the vape cartridge back into the slot. One of the best features is the built-in USB charger. You will never have to look for another charger again as this is an all-in-one unit. To turn the battery on click the power button located on the same side as the USB charger quickly 5 times. To turn it off, click 5 times quickly.