Revive Your Panasonic Toughbook with Premium Power Give your durable Panasonic Toughbook the endurance it deserves. This CF-VZSU1CJS replacement battery is engineered specifically for the CF-LV8, CF-LV9, CF-SV7, and CF-SV8 series laptops, delivering reliable 43Wh (5900mAh) of power at a stable 7.2V. Built with high-quality Japanese Li-ion cells, this brand new battery is designed to restore and extend your laptop's cord-free operation, perfect for field service, mobile professionals, and demanding work environments.