Choose your power source. The rechargeable lithium-ion battery ZITHION-X™ from COAST is compatible with the rechargeable Dual Power and Alkaline Dual Power FL flashlights, as well as the PM450 work light from COAST. The battery features a built-in micro-USB port for easy charging outside of the lamp. A battery indicator blinks red while charging and lights up green when fully charged. An overcharge and discharge protection circuit ensures that the battery is as safe as possible. The battery is backed by COAST's one-year warranty against material and workmanship defects. Today, COAST's lighting serves various purposes, both in private and professional settings. For COAST, it is essential that everyone has the opportunity to choose the right light, with the greatest and best quality and flexibility that provides you with the best illumination and usage options. All to make every day safer, easier, and more enjoyable. COAST – trustworthy and robust.