The infected Box Mod is a Beast fully mechanical, and with its dual 18650 battery capacity...your battery life will be significantly extended. Zombie apocalypse or not, you need this mod. Note: This is an unregulated device. Unregulated devices will not always output the same hit every time. If the battery is low, the coils will take longer to draw in power, meaning you will not receive the same power as if you had a fully charged battery. Unregulated devices will typically not come with a screen, display your battery level, or show your wattage output unless otherwise stated.