HP ProBook battery for 4320s, 4321s, 4325s, 4326s, 4420s, 4421s, 4425s, 4520s, 4525s and Compaq 320, 321, 325, 420, 425, 525, 620, 621, 625

HP ProBook battery for 4320s, 4321s, 4325s, 4326s, 4420s, 4421s, 4425s, 4520s, 4525s and Compaq 320, 321, 325, 420, 425, 525, 620, 621, 625

This is a brand new HP ProBook 4320s 4321s 4325s 4326s 4420s 4421s 4425s 4520s 4525s replacement battery. There are two key components inside your battery pack to look for when buying a new computer battery. The quality of the battery’s lithium-ion cells and the quality of the computer chip set in the battery pack. This battery is built with the best components, not the cheapest.

This battery contains the very best Li-ion cells on the market from Samsung. An important specification to look for with rechargeable batteries is the mAh (milliamp hour) rating or Whr (Watt Hour). This battery is rated at 5200 mAh or 58 Whr. This is the highest rating available for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be recharged again. There are no compatibility issues if your existing battery is rated at 4400 or 4800 mAh or a lower Whr. Simply put, more is better. And yes, this battery is probably better than your original!