Laptop Battery Avacom Battery Kit for RBC59 Renovation (4 Pcs):Do you need to improve the battery life of your laptop? A flat laptop battery or a power cut will not be your problem anymore. A backup laptop battery is useful as a second battery for your travels when you dont have access to an electrical outlet, but still want your laptop to stay switched on. Avacom Battery Kit for RBC59 Renovation (4 Pcs) Battery Key Features Alternative Lead (Pb) battery Safe substitute for the original battery Capacity: 7200mAh, voltage: 12V Provides your laptop with extra power if you happen to run out Keeps your laptop running and allows you to work longer Tip: Frequent use causes the battery to wear out. Please adhere to the instructions on correct handling and charging that can be found in the manual to slow down capacity loss.