HP ProBook 4535s Battery Replace The Following Part Number: 633733-151, 633733-321, 633805-001, HSTNN-Q87C-4, HSTNN-Q87C-5, HSTNN-Q88C-4, HSTNN-Q88C-5, HSTNN-Q89C, HSTNN-I02C, HSTNN-I97C-3, HSTNN-I97C-4, HSTNN-I98C-5, HSTNN-I99C-3, HSTNN-I99C-4, HSTNN-DB2R, HSTNN-IB2R, HSTNN-LB2R, HSTNN-OB2R, HSTNN-OB2T HP ProBook 4535s Battery Fit With Following Models: ProBook 4330s, ProBook 4331s, ProBook 4430s, ProBook 4431s, ProBook 4435s, ProBook 4436s, ProBook 4530s, ProBook 4535s