Warranty :Rest assured with 60 days Refund and 12 months Warranty;24 x 7 email support.Note: return windows will close after one month, don’t worry about it, you can click on seller store on right corner “ask a question” and contact seller directly for 2 years warranty. ?Fast Charging ?--- Power up your laptop and give you the productivity & flexibility you need quickly. ?Compatible Lenovo Computer Model?Compatible with Lenovo Chromebook 100e 300e 500e c330 c340 s330 s340 c630 Yoga; ThinkPad A275 A285 A475 A485 T470 T470s T480 T480s T570 T580 T580s T490 T590 T495 E480 E580 E485 E585 E490 E590 L480 L580 X270 X280 X380 X390 X395 X1 Carbon 5th 6th 7th Generation, X1 Yoga (2nd 3rd Gen); Flex 11 Chromebook; ThinkPad 13 (1st 2nd); Tablet 10, ThinkPad X1 Tablet 2nd 3rd; Yoga 720 720s (13" ONLY!) 730s; Yoga 370 910 920 S730 C930 720-12IKB 720S-13IKB 730-13IKB 910-13IK. Exceptional Compatibility?--- Fit for ALL Lenovo laptop 65W & 45W with USB C power connector, incl. ThinkPad, Yoga, IdeaPad, Flex, Chromebook series & more. ?Specifications?Input: 100-240V, 50-60Hz~1.8A. Output: 5V-3A or 9V-3A or 12V-3A or 15V-3A or 18V-3A or 20V 3.25A;Connector Size: Type USB C tip,Watt: 65W.