Battery for HP 620 HP ProBook 4520s 4525S 4425s 4420s 4320s Compaq 320 321 326 420 425 620 621 fits 593572-001 593573-001 PH06 PH09

The Battery have passed strict intelligent detection, such as short circuit protection, over voltage protection, discharge protection, over current protection, which is very important for battery’s use cycle and safety. All batteries are equipped with high quality material to ensure good performance.