CWK Platinum Quality Features: * Overload Protection with High Quality Wires* Over-charge/discharge protection* Overheating Protection with Smart Chip* Anti-Interference Feature with better Isolation Materials* Short-circuit protection* Fully compatible with the original laptops* Tested with strict quality control standardsCompatible models & part#:HP 15-ac185nr Series HP 15-AC113CL 15-AC137CL 15-AC143WM 15-AC147CL 15-AC151DX HP 15-ac120ds 15-ac120nr 15-ac121dx 15-ac122ds 15-ac123dsBuy with confidence!Ship the same or next business day Guaranteed24 x 7 Email Support100% New Components - never refurbished, recycles, or used100% OEM Compatible - Guaranteed to meet the specifications of your original deviceNearly all our products have UL, CE and RoHS certificates.Peace of mind exclusive 100k product protectionCopyright CWK 2015 All Rights Reserved.