The Energizer MAX® family is all about long-lasting power. The AA and AAA sizes are now our #1 longest-lasting MAX™ batteries. They also hold their power for up to 10 years while in storage, so you have power for the devices you love when you need it most. So when it comes to toys, digital cameras and other valuable devices, you can feel confident knowing you have the long-lasting power and protection you'd expect from Energizer®. Our #1 Longest Lasting MAX AA battery powers everyday devices Leak resistant-construction protects your devices from leakage of fully used batteries for up to 2 years. Bonus: It's guaranteed. Non-stop energy for your non-stop family's must-have devices-think toys, flashlights, wireless mice, remotes, and more Holds power up to 10 years in storage-so you're never left powerless From the makers of the #1 longest lasting AA battery (Energizer Ultimate Lithium), and the Energizer Bunny Energizer created the world's first zero mercury alkaline battery (commercially available since 1991), and it hasn't stopped innovating since.