Check out our selection of high quality Mod Box attachments from Yocan to the new OEN. Mod Box Batteries are a great way to dial in the temperature of the coil by adjusting the wattage on the battery. Not to mention that Mod Box Batteries last much longer than a standard twist battery. One can vape all week on just a single charge. New boxes like the Bull Vapor 50w TC have many settings for different coil types. With many coils on the market it is sometimes tricky to get a battery that will work on all of them but the Bull Vapor TC has an intelligent chip that reads the type of coil.