FY•X is a leading China 20S 72V 25A Hardware BMS Dual Lithium Ion Battery Packs for E-Unicycles manufacturer, supplier and exporter.Experience peak performance and extended rides with FY•X's dual lithium-ion battery packs featuring the advanced 20S 72V 25A Hardware BMS, specially crafted for E-Unicycles. Secure your supply through our reliable suppliers in China to ensure your electric unicycles redefine the limits of power and endurance.