Discover the features and operation of the FM-3d, our advanced 510 battery with digital display. In this video, we’ll guide you through the sleek design and functionality of the FM-3d, from its responsive push-button control to its customizable voltage settings in 0.1 increments—ideal for getting the most out of your rosin or oils. See the intuitive LED screen in action, displaying real-time battery life and current voltage, making it easy to monitor and adjust for a personalized vape experience. Whether you're a pro or new to 510 batteries, the FM-3d offers a balance of control, performance, and style.