【Specifications】Battery type : Li-ion ;Voltage: 11.52V. Capacity:42Wh/3653mAh . Battery life: Up to 500 recharge cycles over the life of the battery. 【Replace Part Number】B31N1729 0B200-02920000 0B200-02920100 3ICP5/57/81 . 【Compatible Model】For ASUS VivoBook S15 S530 S530F S530FA S530FN S530UA S530UF S530UN K530FN Series; VivoBook S15 X X530 X530UF X530UN X530FA X530FN Series ;VivoBook S15 S5300F S5300U S5300UN Series Notebook. 【Quality Assurance】CE / FCC / RoHS Certified for safety. 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. 【Warranty】30 Days Money Back And 12 Months Exchange Guarantee. if you have any issues, questions or concerns.CONTACT US.We are friendly Customer Support Experts. Please contact through "Your Orders" tab in Amazon account ,we promise to resolve the problem within 24 hours.