Panasonic Notebook battery - Li-Ion - 9300 mAh (CF-VZSU83U) Battery: Lithium ion 9300 mAh Batteries Qty: 1 Designed For: Panasonic Toughbook C2 (Mk1) It is a Panasonic CF-VZSU83U long life Tablet PC Battery It is highly efficient It is of durable quality