CWK New Replacement Laptop Notebook Battery for HP ProBook 4330s 4331s 4430s 4431s 4435s 4436s 4530s 4535s 4730s HSTNN-IB2R HSTNN-LB2R HSTNN-OB2R HSTNN-Q8 HSTNN-I97C-3 HSTNN-I97C-4 HSTNN-I98C-5 HSTNN-I99C-3 HSTNN-1B2R HSTNN-DB2R HSTNN-DB3C HSTNN-I02C 633733-1A1 633733-321 633805-001 650938-001 Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 11.1 Volt (10.8 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!