Pack of 48 AA Alkaline 1.5 Volt Batteries Improved anti-corrosion components and new zinc composition give the batteries a 10-year, anti-leak shelf life Designed to provide reliable and lasting performance for both high and low drain devices Unique Japanese technology enables better performance after storage, over-discharge, and high temperatures Pack of 36 AAA Alkaline 1.5 Volt Batteries Improved anti-corrosion components and new zinc composition give the batteries a 10-year, anti-leak shelf life Designed to provide reliable and lasting performance for both high and low drain devices Unique Japanese technology enables better performance after storage, over-discharge, and high temperatures