Energizer Ultimate Lithium AA batteries

Energizer is a globally recognized American brand, widely celebrated for its innovation in the portable power industry. The Ultimate Lithium line, featured in the packaging, is marketed as the world's longest-lasting AA battery, designed to provide high performance in high-tech devices and extreme temperatures. These specific lithium batteries are primarily manufactured in Singapore, a key hub for high-end battery production.

Originally founded in the late 1890s through the American Ever Ready Company, the brand has evolved through various corporate identities, including Union Carbide and Eveready Battery Company. Today, Energizer operates as an independent, publicly traded entity following its spin-off from Edgewell Personal Care in 2015. The brand maintains its status as a market leader in battery technology and portable lighting solutions worldwide.