Unregulated Mods IconUnregulated mods are also called mechanical mods and their names comes from the fact that the amount of vapor and flavor gradually decreases as the battery begins to lose its charge. However, these devices are extremely popular because the experience can be tweaked to the max and experienced vapers know exactly how to pull the best out of their mods. They come in either box or tubular shape and some of them are even telescopic, which means they can work with different battery sizes by adjusting the length of the tube.