This is a brand new HP HSTNN-DB1A battery for the ProBook 4320s 4321s 4325s 4326s 4420s 4421s 4425s 4520s 4525s models.

This HSTNN-DB1A battery contains the very best Li-ion cells on the market from Samsung. This HSTNN-DB1A 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.


All our products carry a full 2 Year warranty and every battery is charged and tested before it ships.
We provide a 30-day money back guarantee if you are not completely satisfied. We are so confident in the quality of our batteries, we will pay for any and all shipping expenses if our product fails to perform in the first 30 days you have our battery.

Check your current battery to ensure you are ordering the correct battery. It should match the picture above. This battery will provide about 2 hours to 2.5 hours of run time with this HSTNN-DB1A battery when new, depending on your energy use.

If you want even longer run time, check out our 9 cell battery which provides an extra 1- 2 hours of run time for a total of about 3-4 hours of battery runtime. Click here for the 9 cell HP ProBook extended run battery.

This HSTNN-DB1A battery replaces the Hewlett Packard ProBook 4320s, 4321s, 4325s, 4326s, 4420s, 4421s, 4425s 4520s, 4525s, and Compaq 320, 321, 325, 420, 425, 525, 620, 621, 625 series.