<b>Specification:</b><br><br> <b>Models:</b> 57++ <br> <b>Voltage: </b>10.8V/11.1V<br> <b>Capacity: </b>100Wh/9210mAh 9-Cells<br> <b>Battery Type: </b>Li-ion<br> <b>Battery Condition: </b>Brand New<br><br> <b>Replacement Part number:</b><br> 0C52864 57++ 45N1152 45N1153 45N1144 45N1148 45N1150 45N1779 <br> 45N1158 45N1160 45N1145 45N1149 45N1151 45N1159 45N1161 <br><br> <b>Compatible with machines model: </b><br> Lenovo ThinkPad T440p T540p W540 W541 L440 L560 L540 Series<br> <b>Note:</b>Please make sure your battery modle before order.<br><br><b>Warranty:</b> 12 Months. If you have any issue, please contact us through the seller's after-sales service, we will help you resolve the problem.<br>