When life calls for power, depend on Panasonic. With more than 70 years of experience developing cutting edge products - and creating the right batteries for them - you can be sure that Panasonic batteries are the most technologically advanced in the industry Manufacturer: Panasonic Manufacturer Part Number: CF-VZSU29ASU Manufacturer Website Address: http://www.panasonic.com Brand Name: Panasonic Product Name: Lithium Ion Notebook Battery Product Type: Notebook Battery Battery Information: Battery Rechargeable: Yes Battery Information: Battery Chemistry: Lithium Ion (Li-Ion) Compatibility: Panasonic ToughBook Notebooks: CF29 CF51 CF52