Battery type: Li-Polymer; Capacity: 35Wh/4680mAh; Voltage: 7.3V. Macbook Air 11' A1406 A1495. All products are certified by UL-/CE-/FCC-/RoHS. As a professional computer accessories manufacturer with decades of experience, we have been committed to providing customers with security laptop battery. WARRENTY SERVICE: Full Refund within 60 days; 12 months Warranty; 24 x 7 Email Support.