Trusted Brand & ProductsPKCELL alkaline AA AAA batteries are known for their high performance and durability. This combo pack of 30 AA batteries and 20 AAA batteries is more reliable, practical and affordable Mouse-Specific BatteryThese high-performance double aa batteries and triple aaa batteries provide extended life for household electronics like wireless mice, keyboards, clocks, flashlights, toys, remote controls, etc 10-Year Shelf LifePKCELL double a batteries and triple a batteries last up to 10 years in storage and feature date coding for easy tracking, ensuring you'll always have reliable power when you need it most Performs in Any TemperatureFrom -4°F to 129°F, these batteries maintain strong performance, ensuring your devices stay powered in any condition.For prolonged use in extremely low or high temperature environments, we recommend consulting a PKCELL technical expert for professional guidance. Certified Safe & ReliablePKCELL batteries meet strict CE