<br>*Battery Type: 57++ <br>*Voltage: 11.1V <br>*Capacity: 8510mAh <br>*Fits Model:T440P T540P W540 W541 L440 L540 <br>*Compatible Part Number: 45n1144 45n1145 45n1152 45n1153 45n1150 45n1151 0c52864 0c52863