Energizer 522 Bp1 9V Max Alkaline Battery, Pack Of 1, Multi, Small

Last up to 10 times longer than standard batteries Hold power for up to 10 years in storage Protects against damaging leaks for up to two years after fully used when left in low-drain devices Innovative first: Energizer developed the world's 1st* Zero Mercury AA Alkaline Battery, making us an industry leader in powering people's lives responsibly