The Battery Management System (BMS) on an ebikes battery pack is one of the least understood, and yet most important components on an ebike. Most new ebikers easily grasp that a quality battery will provide better performance and last much longer than a mystery pack made from counterfeit cells that don’t live up to their advertised performance claims, and also will wear out quickly. But…quality costs more, and a high-quality battery pack is likely to be the most expensive single component in an ebike build. There will be an incredible amount of anger and frustration when someday you discover that … Continue reading BMS’s, what the hell do they do?