Description : Energizer is the maker of the 1st zero mercury AA alkaline battery . Features : Up to 50% longer lasting than EVEREADY GOLD in demanding devices. Our # 1 longest-lasting MAX thanks to new improvements . Designed to protect against damaging leaks for up to two years after fully used Hold power for up to 10 years in storage . From the makers of the world’s 1st Zero Mercury AA Alkaline Battery: Energizer is an industry leader in powering people’s lives responsibly