Keep your light ready. The ZX750 Zithion-X is a rechargeable lithium-ion battery compatible with COAST flashlights A25R, HP8R, HP7R, and GX20. The battery features a built-in micro-USB port that allows for charging both inside and outside the flashlight. The charging indicator blinks red during the charging process and lights up green continuously when the battery is fully charged. Overcharge and discharge protection circuits ensure that the battery is as safe as possible. The battery comes with a one-year warranty from COAST against material and workmanship defects. All COAST lights serve various purposes today, both in private and professional settings. For COAST, it is essential that everyone has the opportunity to choose the right light, with the highest quality and flexibility that provides the right illumination and the best possible effect. Everything to make everyday life safer, easier, and more comfortable. COAST - reliable and robust.