The Genuine FZ-VZSU84U battery is a 45Wh Li-Ion battery designed for the Panasonic Toughpad series, specifically compatible with models like Panasonic FZ-G1 FZ-G1FA3AFCM. With a voltage of 10.8V and 6 battery cells, this gray battery is ideal for those looking to replace their existing Panasonic laptop battery. Made in China, this untested battery is sold for parts only, making it a valuable option for those in need of a replacement battery for their Panasonic device.