The DENAQ 6 - Cell 4400mAh Li - Ion Laptop Battery is a reliable power source for HP Business Notebooks including models NC6100, NC6200, NC6320, NC6400, NX6100, and NX6300. With a capacity of 4400 mAh and a voltage of 10.8 V DC, this rechargeable battery ensures your device remains powered for extended periods. Its lithium - ion chemistry provides enhanced usability and dependability, making it an essential accessory for professionals on the go. The battery is designed to fit seamlessly into your notebook, offering a convenient spare that saves you time and effort by eliminating the need for frequent replacements.