CF-VZSU0MJS Genuine Replacement Battery for Panasonic Toughbook CF-SZ Series Power your rugged Panasonic Toughbook with this authentic 6700mAh Li-ion replacement battery. Specifically designed for Panasonic CF-SZ5 and CF-SZ6 series laptops, this high-capacity battery delivers reliable performance for business, field work, and mobile computing in demanding environments.