Coral FC-4-S Battery Pack

Our Inner Battery Packs are engineered for riders and builders who demand a clean, integrated design without compromising power. An inner battery is housed discreetly within the bike’s frame or chassis, protecting it from external elements while maintaining a sleek aesthetic and perfect weight balance. Each unit is Proudly Made in the USA, engineered with premium-grade UL-Certified cells, high-quality components, and advanced BMS technology to ensure the highest levels of safety and reliability. Designed for seamless integration and long-lasting power, our downtube systems outperform OEM batteries, offering unmatched performance and protection for every ride — because safety isn’t optional; it’s our foundation. But our innovation doesn’t stop with e-bikes. Under our vision “One Battery. Many Worlds.”, the same American-engineered power fuels robots, industrial equipment, drones, autonomous vehicles, portable medical devices, and smart energy systems. One battery pack offers endless pos