PH06 HSTNN-UB1A Laptop Battery For HP Compaq 320 321 325 326 420 421 620 587706-751 587706-761 593572-001 PH06 HSTNN-UB1A Laptop Battery For HP Compaq 320 321 325 326 420 421 620 587706-751 587706-761 593572-001. Sale price : $16.94 Category : Computer & Office