Features: 1. You can get long hours of battery life without having to frequently plug into recharge with the Notebook Battery 2. No memory effect. Chargeable even if it has not been used up yet 3. Using advanced cell technology and quality parts, the Notebook Laptop Battery guarantees the stamina you need for long work sessions and travel 4. Manufactured to the highest quality available, Notebook Laptop Battery with true enhanced performance 5. Notebook Laptop Battery is powered by high quality cells 6. The Rechargeable Laptop Battery recharges while it is installed and the computer is connected to AC power Specifications: 1. Battery Type:  Rechargeable Battery 2. Cell Type: Li-ion 3. Battery Number: 4 Cells 4. Voltage: 14.8V 5. Capacity: 2600mAh 6. Color: Black 7. Size: 6.3 x 2.36 x 0.79 '' / 16 x 6 x 2 cm(L x W x H) 8. Package Size: 7 x 5.16 x 1.85 '' / 17.8 x 13.1 x 4.7 cm(L x W x H) 9. Weight: 9.42 oz / 267 g 10.Model: X60 Package Includes: 1 x Laptop Battery for IBM Lenovo Thinkpad X60 X60s X61 X61s(4-Cell 14.8V,2600mAh) Black 1 x English user manual