Our Bloog manual electronic cigarette battery works exactly like the Bloog automatic battery only with a sleek button design featuring a 5 second cutoff. The button and 5 second cutoff are designed to maximize battery and cartomizer (cartridge) life. Bloog's electronic cigarette battery is perfect for getting that second glance and should be used in conjunction with Bloog cartomizer tips. The KR808D-1 manual battery features a blue or red LED end that glows when inhaling. The Bloog manual battery is compatible with all Bloog Maxx Fusion threaded cartomizers and is also compatible with all Bloog Maxx Fusion charging devices and is fully rechargeable.