?Service ?We Offer an Industry-Leading Return and Exchange Policy,Within 30 Days of Purchase. 1 Year Warranty with Replacement,Wall plug replacement for life. 100% customer satisfaction , 24 hrs. email support. ?Compatible P/N?917649-850,917677-003,917677-001,776620-001,775626-003,740243-001,645509-002,646212-001,ADP-150XB B, A150A05AL, HSTNN-CA27, TPN-DA03. ?Compatible Laptop Models?Fit for HP ZBook 15 G3 G4 G5 G6,ZBook Studio G3 G4 G5 G6,HP ZBook 15u G3 G4,OMEN by HP Laptop 15,Pavilion 15-bc251nr 15-bc220nr;by Hp OMEN 15 series charger 15-ax243dx 15-ax256nr 15-ax043dx 15-ce198wm 15-ce001la 15-ce199nr 15-ce019dx 15-ce003la 15-dc0010nr 15-dc0045nr 15-dc0051nr 15-dc0020nr 15-dc0052nr 15-dc0087nr, Hp OMEN 17 series charger. ?Product Type?100 ~ 240V 50 ~ 60 Hz ,DC output : 19.5V ~ 7.7A 150W (150 Watt compatible with 120W 135W) Connector 4.5mm x 3.0mm. ?A Second AC Adapter?At home and/or at work makes power access convenient and tailored to your needs. Also keep one in your carrying case at all times and never be without an AC adapter when you travel. It enables you to keep your battery fully charged when you really need it most on the road.