BULL-TECH 70+ 6 cell 0A36302 Laptop Battery for Lenovo L412 L420 L430 L510 L512 L520 L530 T430 T530 W520 W530 45n1001 45n1003 45n1005-12 Months Warranty Battery Type: 10.8v 57wh 70+ Battery Compatible ThinkPad L Series - L412 L420 L430 L510 L512 L520 L530, T Series- T410 T420 T430 T510 T530, W Series- W520 W530 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Warranty: 12 Months Warranty,30 days money return guarantee!