7.4V/2AH 2 in 1 Battery for GlovesMobile Warming heated gloves are great for any outdoor winter activity and are known for high quality and performance. This extra battery pack can be used as a replacement or purchased to extend the warmth for longer periods of enduring the cold. Includes 1pc Battery Compatible with Mobile Warming 7V Glove Styles: Glove Lines, Workmen Gloves, Barra Gloves, Geneva Gloves Mobile Warming 7V Li-Ion Battery Pack for Gloves