The user experience of an led helmet hinges on its power system. As a veteran manufacturer, I know that convenience and reliability are key. That's why we at SPIRIT have standardized on using high-quality, rechargeable Lithium-ion batteries in all our designs. We work with top-tier battery suppliers who provide extensive safety and performance data. For charging, we have made USB-C our standard port. It's robust, reversible, and it's the same standard used by most modern electronics, meaning the rider doesn't need to carry a special cable. We also have the capability to engineer other solutions, like proprietary magnetic charging ports for a high-end, waterproof seal. Beyond the hardware, we design our circuit boards with battery management features, protecting against overcharging and providing clear low-battery indicators to the user. Powering an led helmet correctly is a complex task, and our expertise ensures the system is safe, convenient, and reliable for the end-user.