Compatible Brand For HP Model No HP PR06 Number Of Cells 6 Capacity 4400 mAh Compatible Models HP ProBook 4440s, HP ProBook 4441s, HP ProBook 4446s, HP ProBook 4530s, HP ProBook 4535s, HP ProBook 4540s, HP ProBook 4545s, HP ProBook 6465bHP ProBook 4330s,HP ProBook 4331s, HP ProBook 4340s, HP ProBook 4341s, HP ProBook 4430s, HP ProBook 4431s, HP ProBook 4435s, HP ProBook 4436s, Compatible Parts No PR06, QK646AA, QK646UT, 3ICR19/66-2, 633733-1A1, 633733-321, 633805-001, 650938-001, HSTNN-DB2R, HSTNN-IB2R, HSTNN-LB2R, HSTNN-OB2R, HSTNN-XB2E, HSTNN-XB2F, HSTNN-XB2G, HSTNN-XB2H, HSTNN-XB2I, HSTNN-XB2N, HSTNN-XB2O, HSTNN-XB2R, HSTNN-XB2T, HSTNN-XB3C, LC32BA122 Warranty 1 Year from Service Center