The ZAHARA CR2032 CMOS Battery is specifically designed for the HP EliteBook 1040 G3 G4, making it an ideal replacement battery for your motherboard, BIOS, or other critical applications. This battery ensures reliable power supply, ensuring that your system remains functioning smoothly and efficiently. The battery has a capacity of 2032mAh, providing a longer-lasting battery life compared to other options. Its CMOS technology ensures optimal power management and a shorter self-discharge rate, ensuring it retains its power capacity for longer periods. Furthermore, ZAHARA's commitment to quality and security makes this battery a perfect choice for users who value reliability and trust in their products.