Overview Number of Batteries : 100 AA batteries required. (included) Brand : Tenergy Battery Cell Composition : Alkaline Recommended Uses For Product : Store and Organize Batteries Unit Count : 1.0 Count About this item IN THE BOX: Tenergy's battery storage case and 200 Pack value combo with 100 pack of AA and 100 pack of AAA Tenergy alkaline batteries. Tenergy's storage case neatly holds the included Tenergy alkaline batteries with foam slots and prevents contacts from touching each other. Includes battery tester for alkaline/nimh/nicd batteries, to determine how much power each battery still holds after long periods of storage. Tenergy's 1.5V alkaline batteries designed for everyday applications like wireless mouses, keyboards, clocks, flashlights, toys, remote controllers. These alkaline non-rechargeable batteries have an anti-leaking tight seal design and date coded freshness; ready to use out of box or stock up for future needs, batteries can hold power for up to 10-years when stored properly.