Get longer battery life and improved laptop performance with a new HP ProBook 4421s battery.
This ProBook 4421s battery is rated 5200 mAh and will generally last 3 hours on a single charge. 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. It just means this one will last longer than the original battery.
We are a family-owned business located in Cleveland, Ohio. Our friendly and tech savvy customer support is here to help if you have any battery, compatibility or power related issues.
All our ProBook 4421s batteries 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, even if it is not our fault.