This is a brand new HP HSTNN-DB91 battery for HP ProBook 4210s 4310s 4311s laptop models. This HP Spare HSTNN-DB91 battery is rated 5200 mAh or 58 Whr and will normally last 3-4 hours on a full charge.
Laptop Battery Express is a US based business with knowledgeable support staff to assist you before and after the sale. Yes, we have a phone number and real people answer your call! Free technical support is available if you need additional help in diagnosing power problems with your battery, ac power adapter or battery meter software.
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 high capacity battery will provide about 3 hours to 4 hours of run time with this computer battery when new, depending on your energy use.
