After sale warrantyRest assured 30 days full refund.12 months free replacement for Non-human factors.Email reply within 24 hours. (Note: return windows will be closed after one month. After that, you can click on seller store name on right corner, you can see "Ask a question" on the page and contact directly for any problem) SpecificationsBattery Model Name: C41N1731-2, Voltage: 15.4V; Capacity: 66Wh/4335mAh Color: Black; Type: Li-ion Battery Battery life: Up to 1000+ recharge cycles over the life of the battery. Replacement for Part Number P/NC41N1731-2,C41N17312,CA43681G, C41POJ5,C41PNJ5,,4ICP5/70/81,0B200-03400200,0B20003400200,0B200-02990000,0B2000299000 (Note: There are 3 different snap shapes for this battery, so it is highly recommended to check the shape of your original battery before purchasing) Compatible Modelsfor Asus ROG Strix G512LU, G512LV, G512LW, G512LWS series.for Asus ROG Strix G531GU, G531GV, G531GW series.for Asus ROG Strix G53