The BTI Lithium Ion Notebook Battery is designed specifically for HP Compaq notebooks, providing reliable power with a capacity of 4400 mAh. This rechargeable battery delivers 11.1V DC, ensuring your device is always ready for use. With six cells, it offers optimal performance and longevity, making it an ideal choice for professionals on the go. Its proprietary battery size is smaller and lighter than traditional batteries, enhancing portability without compromising productivity.