Dentsing CF-VZSU29 CF-VZSU29A CF-VZSU29ASU Extended Capacity Battery for Panasonic CF-29 CF-30 CF-31 Toughbook Series Laptop Battery type: Li-ion. Capacity:7.65AH Voltage:11.1V . Color: Black. Model:CF-VZSU29A Warranty: 12 Months .