Varta AG, through its subsidiaries, researches, develops, produces, and sells microbatteries and energy storage solutions worldwide. It operates through two segments, Microbatteries and Power & Energy. The Microbatteries segment offers zinc-air batteries for use in hearing aid devices; lithium-ion battery solutions for wireless headphones, and other wearable applications, as well as for electrical devices, including Bluetooth headsets and medical devices for measuring high blood pressure, blood sugar, and other bodily functions; and rechargeable battery solutions for use in applications, such as servers, car keys, alarm systems and smart meters, and others for industrial and original equipment manufacturers. The Power & Energy segment is involved in the development, system integration, and assembly of rechargeable battery packs for portable industrial, communication, power tool, home and garden, and medical applications; and energy storage devices for private households and commercial applications. The company was founded in 1887 and is headquartered in Ellwangen, Germany. Varta AG is a subsidiary of Montana Tech Components AG.