outlasts the long-lasting power of Energizer Ultimate Lithium Batteries. Each battery?s safety-conscious, leak-proof design gives you confidence that your most-loved devices are protected against leaks and corrosion. These batteries can perform in extreme temperatures (from -40F to 140° F) AND last in storage for up to 20 years? making Ultimate Lithium batteries the clear choice to dependably power the essential devices in your life. 4-pack of Energizer Ultimate Lithium AA batteries | Energizer Ultimate Lithium is the #1 Longest-Lasting AA Battery | Leak-proof construction protects the devices you love (based on standard use) | Powers your most critical devices—ideal for your smart home devices, outdoor surveillance systems, digital cameras, and handheld games | Holds power up to 20 years in storage for trustworthy backup energy, so you’re always prepared | Performs in extreme temperatures, from -40F to 140° F, for year-round, indoor and outdoor use | See why nothing outlasts Energizer in high-tech devices