These premium AA Alkaline Batteries excel in today's power-hungry devices including high-powered toys, video game controllers, wireless headsets and more. Plus, they're designed to prevent damaging battery leaks and tested twice prior to shipment to ensure reliability. These Double A batteries contain power rings for consistent performance and a max capacity can for safely containing and delivering maximum power. Specially formulated for power-hungry, High-Tech devices, the energy-dense Rayovac Fusion premium formula provides more power than Rayovac High Energy. No competitor's alkaline batteries outlast Rayovac Fusion Premium Alkaline AA Batteries*. *Average ANSI performance Test