The Xiaomi Mi ZI5 Rainbow 1.5V AA Alkaline Battery Set (10 PCS Pack) is a vibrant, high-performance power solution designed for daily household and personal electronics. Featuring a unique multi-color "rainbow" design, each battery in the 10-piece pack comes in a distinct color, making it effortless to identify fresh cells from used ones. Manufactured with high-density Hitachi Maxell cell core technology, these AA alkaline batteries offer exceptional energy capacity, stable 1.5V output, and an extended shelf life of up to 7 years. Built with a double-layer anti-leakage casing and environmentally friendly mercury-free and cadmium-free components, the Mi ZI5 batteries deliver reliable, safe power for wireless mice, TV remotes, smart door locks, toys, and wall clocks. The set comes complete with a durable, transparent storage case for neat organization. • Key Highlight 1: Vibrant Rainbow Color Design - 10 distinct colorful battery casings make distinguishing fresh vs. used batteries quick and easy. • Key Highlight 2: Premium Hitachi Maxell Core Technology - High-density cell structure provides long-lasting power and high energy discharge efficiency. • Key Highlight 3: Double Anti-Leakage & Mercury-Free Construction - Multi-layer sealing ring and manganese dioxide casing safeguard electronics from chemical leaks. • Key Highlight 4: Long 7-Year Storage Shelf Life - Low self-discharge rate ensures batteries retain charge for up to 7 years in standby storage.