50 x 9 Volt Energizer Ultimate Lithium Batteries (L522)

Lasts 20% longer than other lithium 9Vs so toys and smoke alarms won't run out as fast, ultimately saving money Anti-leak structure ensures the integrity of the batteries and prevents corrosion Energizer is a globally recognized and trusted brands by households around the world 10 Year Shelf Life assures that back-ups will be ready for immediate use, especially in an emergency