Description 4520S HP Laptop Battery Specification; Battery type: Li-ion; Capacity: 56Wh; Cells:6-cell; Voltage: 10.8V;Capacity:5200 mAh. Compatible Models: For HP Compaq 320 321 325 326 420 421 620 621; HP 420 425 4320t 620 625; HP ProBook 4320s 4321s 4325s 4326s 4420s 4421s 4425s 4525s High quality grade “A†cells. Charges quickly. Longer discharge time. Steady output and low power consumption. More than 500 times charge-discharge cycles. Operation time for standard batteries(6-cell 5200 mAh): Around 2 hours the actual operation time will depend on how much electricity is required by the device and how you use it.
