L21D3PF0 Laptop battery Specifications Model: L21D3PF0 / Voltage: 11.25V / Capacity: 42Wh /Battery type: Li-ion. /Battery life: Up to 1000 recharge cycles over the life of the battery. Also comes with installation tools.Purchasing Note: Due to the complexity of laptop battery models, you may not be able to accurately determine the model you need to purchase,Please open the back cover of the laptop to confirm the original battery model number