Product Description: Energizer is the world's largest manufacturer of dry cell batteries and flashlights, and a global leader in the dynamic business of providing portable power. Energizer subsidiaries offer a full line of products in five major categories: alkaline, carbon zinc, small electronics and rechargeable batteries, and lighting products. Marketed and sold in over 140 countries, Energizer brand is recognized around the world.This battery is designed for AT&T and Philips cordless phones.