Energizer is a world leader in battery technology. The Energizer Ultimate Lithium battery is the world's longest lasting AA battery and AAA battery in cameras, MP3 players and other high tech devices. Energizer Rechargeable batteries ensure that you have plenty of power ready to work hard for you. Energizer Advanced Lithium batteries deliver more power for your gaming and music devices. And Energizer MAX® alkaline batteries deliver dependable performance for everyday use devices including toys and your flashlight. Energizer Batteries – Keep Going®