Long-lasting power and innovation is what the Energizer MAX family is all about. Meet our Energizer MAX 9V battery, made with POWERSEAL Technology to lock in power. Energizer 9 Volt batteries hold power for up to 5 years while in storage, so you have power when you need it most. 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 expect from Energizer.4-pack of Energizer MAX alkaline 9V batteries Our long-lasting MAX 9 Volt batteries power everyday devices Made with POWERSEAL Technology to lock in power Power for your nonstop family’s must-have devices like toys, flashlights, clocks, remotes, and more Holds power up to 5 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.