【Specifications】Battery Type: Li-ion . Voltage: 15.36V ; Capacity: 2964mAh/45Wh/4Cell . 【Compatible Part Number】 L18C4PF0 L18M4PF0 L18D4PF0 5B10W67315 5B10W67334 5B10W67399 5B10S73499 5B10S73500 5B10S73501 . 【Replacement For Laptop】for Lenovo ThinkBook 13s 13s-IML 13s-IWL 14s 14s-IML 14s-IWL Series . 【Quality Assurance】100% new from manufacturer, every battery has passed factory testing, grade A cells ensure fast charges and low power consumption, built-in circuit protection ensures both safety and stability. CE / FCC / RoHS Certified for safety. 【After Sale】We will provide 24 x 7 Email Support, 12-Month warranty and 30 Days Money Back Guarantee.Any question,please feel free to contact us.