Amazon.com: AC Doctor INC 5200mAh Laptop Battery 367759-001 HSTNN-IB09 PF723A PM579A for HP Pavilion DV1000 DV1200 DV1400 DV4000 DV5000 ZE2000 Series 6 Cell New : Electronics
Amazon.com: Laptop/Notebook Battery for HP DV4/DV5/DV5T/DV5Z/CQ40/CQ45/CQ50/CQ60/CQ70/CQ55 Series. Rating 10.8V, Capacity is 4400mAh : Electronics