Energizer Max Battery is all about long-lasting power and innovation. Meet the longest-lasting Energizer battery yet. These batteries now last up to 30% longer than previous Energizer batteries. They also hold their power for up to 10 years. Even while in storage. So, you have power when you need it most. In addition, they are designed to protect devices from leakage of fully used batteries for up to 2 years. So, when it comes to sex toys and other valuable devices you can feel confident. Know you have the long-lasting power. And, the protection you expect from Energizer batteries.