Simply recharge and get back to work. The rechargeable lithium-ion battery ZITHION-X from the ZX850 series is compatible with the COAST XP9R flashlight and the XPH30R headlamp. It features a built-in USB-C port for easy charging. A battery indicator blinks red during charging and lights up green when fully charged. An overcharge and discharge protection circuit ensures maximum safety for the battery. The battery is covered by COAST's one-year warranty against material and workmanship defects. COAST lighting serves many purposes today, both in private and professional settings. It is essential for COAST that everyone has the opportunity to choose the right light, with the greatest quality and flexibility, to provide you with the best possible illumination and performance. All to make every day safer, easier, and more enjoyable. COAST - Trusted tough.