Description: Capacity: 4400 mAh Voltage: 10.8V (11.1V) Number of cells: 6 Cells technology: Li-Ion Warranty: 12 months Cells manufacturer: Green Cell Colour: Black Overdischarge protection: Yes Overcharge protection: Yes Product code: LE16 Manufacturer: Green Cell Size: 205x55x21mm Weight: 300g Compatibility list: Compatible with following battery models : 42T4534,42T4535,42T4536,42T4537,42T4538,42T4540,42T4541,42T4542,42T4543,42T4646,42T4649,42T4650,42T6467,43R9253,43R9254,43R9255 Compatible with following devices : Lenovo ThinkPad X200,Lenovo ThinkPad X200s,Lenovo ThinkPad X200si,Lenovo ThinkPad X201,Lenovo ThinkPad X201i,Lenovo ThinkPad X201s,Lenovo ThinkPad X201si