Panasonic CF-VZSU0QW Toughbook FZ-A2/CF-20 Li-Ion Battery

Compatible with TOUGHBOOK CF-20 & FZ-A2 Replacement for the standard battery or can provide additional battery life if added in the keyboard (second battery) One battery provides up to 8.5 hours, two batteries up to 17 hours (MobileMark 2014) Additionally, the standard bridge battery provides up to 1 minute of hot swap time without shutting down your unit or going into sleep