Part No HP4330LH Voltage 10.8V Capacity 4400mAh Number of cells 6 Cell Cells technology Li-ion Over charge protection Yes Over discharge protection Yes Condition New Warranty 6 months Compatible Battery Part Number: 3ICR19/66-2 633733-152 633733-352 633733-421 633735-141 3ICR19/66-2 633735-321 633805-001 633809-001 HSTNN-I02C HSTNN-I97C-3 HSTNN-I98C-5 HSTNN-I99C HSTNN-IB2R HSTNN-LB2R HSTNN-Q87C-5 HSTNN-Q88C HSTNN-XB2H HSTNN-XB2T QK646AA Compatible Laptop Models: HP 633733-141, HP 633733-142, HP 633733-151, HP 633733-1A1, HP 633733-241, HP 633733-242, HP 633733-251, HP 633733-252, HP 633733-321, HP 633733-351, HP 633735-121, HP 633735-221, HP 633735-351, HP 650624-241, HP 650938-001, HP HSTNN-1B2R, HP HSTNN-DB2R, HP HSTNN-DB2T, HP HSTNN-DB3C, HP HSTNN-I97C-4, HP HSTNN-I99C-3, HP HSTNN-I99C-4, HP HSTNN-OB2R, HP HSTNN-Q87C-4, HP ProBook 4430S, ProBook 4440S, ProBook 4540s, ProBook 4500. Note - Use ( Ctrl+F ) to Find Your Laptop Model .