Screwdriver FS540 1, New screwdriver with key-ring. 2, Screw on top to control the E-cig's working. 3, Removable battery design. 18350 battery type, 900mA. 4, Cartomizers and Tank Systems are fully compatible with FS eGo/510 series. Products details ***General Introdution: The screwdriver FS540 is the new MEGA type E-cig. It is completely compatible with FS510/eGo's cartomizers or tank series. They have the same screw. FS540 has a special top-screw. When we screw it up, we can use the FS540 as a manual E-cig. When we screw it down, then the E-cig is locked and can not work till the top-screw is up again. FS540 has the removable battery (900mAh) same as in FS4313 or FS602/FS603's. These models use the same batteries and wall chargers. FS540 uses all types of cartomizers or tank cartridges for FS510/eGo series. *** Main structure: 1pc Top-body + 1pc Battery + 1pc bottom-cover + 1pc screw +1pc cartomizer w/shell or FS tank * Battery: using the best lithium-battery core. Power: 900mAh.
* Cartomizer: Full types of cartomizers or FS tanks for FS510/eGo series. * Wall Charger: Input: 110V to 220V, 47 to 63Hz Output: 3.7V/450mAh End of charge voltage: 4.2V * FS540 work with FS Tank series. * The bottom cover has a key-ring connector.