Anti-leak protectionPanasonic Alkaline cells feature advanced Anti-Leak Protection that suppresses gas buildup when a battery is over-discharged or stored for a long period. Less pressure means less chance of structural failure and rupture, and protects your valuable devices from damage.Panasonic EVOLTA batteries combine “voltage” (power) and “evolution” — how the Panasonic technology has grown to become preeminent in the industry. EVOLTA consistently outperforms our competitors' premium products in commonly accepted performance tests. And this because the EVOLTA is a battery which can meet the power needs of different electronic appliances we use every day, it is the perfect battery in all circumstances for high to low drain appliances.The ultimate long lasting energy, Power protection for up to 10 years in storage, Ideal for Camera flash, Ideal for Game controller, Ideal for Drone, Ideal for Remote control