Long-lasting power and innovation is what the Energizer MAX family is all about. They also hold their power for up to 10 years while in storage so you have power when you need it most. Plus they are designed to protect devices from leakage of fully used batteries up to two years. 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 expect from Energizer. Battery Type: Alkaline Battery Size: AAA Voltage: 1.5 V Materials: Alkaline Manganese Dioxide.