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Replacement Laptop Battery For HP 320 420 621 Series Laptop Battery
This battery is also compatible with the following models :
HP ProBook 4320s 4321s 4320t 4420s 4421s 4520s Series
HP Compaq 320 321 420 421 620 621 Series
This 6-cell 10.8V HP laptop battery replacement is a good device to substitute the original ones with OEM specs.