Amstron Power Solutions provides high-performance, reliable replacement batteries for laptops. A leading provider of mobile technologies since 1996, Amstron replacement batteries are tested rigorously to make sure our batteries provide maximum productivity and dependability. Extensive knowledge and training in rechargeable battery development, has enabled Amstron to develop a reliable and safe line of rechargeable batteries. The LTO-40 is designed to replace Toshiba OEM part numbers PA3206 , PA3206U , PA3206U-1BRS, PA3206U1BRS; and fits the Satellite 1900 and Satellite 1955 Series. • Chemistry: Li-Ion • 14.8V 6600mAh • Will meet or exceed original specifications • Warranty:1 year