10.80V,4400mAh,Li-ion, Hi-quality Replacement Laptop Battery for HP 420, 425, 4320t, 620, 625, HP ProBook 4000 Series, COMPAQ 320, 321, 325, 326, 420, 421, 620, 621, Compatible Part Numbers: 587706-751, 593572-001, BQ350AA, HSTNN-CB1A
This item fits following models: (1) HP: HP 420, HP 425, HP 4320t, HP 620,HP 625.(2) HP ProBook 4000 Series: ProBook 4320s, ProBook 4321s, ProBook 4325s, ProBook 4326s, ProBook 4420s, ProBook 4421s, ProBook 4425s, ProBook 4520s, ProBook 4525s, ProBook 4720s.(3) COMPAQ: Compaq 320, Compaq 321,Compaq 325, Compaq 326, Compaq 420,Compaq 421, Compaq 620, Compaq 621.Compatible Part Numbers: 587706-751, 593572-001, BQ350AA, HSTNN-CB1A.