The Asus Laptop Battery Pack 11.55V 3550mAh is a reliable power source designed to extend the life and performance of your Asus laptop. With a voltage of 11.55V and a capacity of 3550mAh, this battery pack provides long-lasting power, ensuring your laptop runs smoothly throughout your workday or leisure activities. Its high-quality construction guarantees durability and efficiency, making it an essential accessory for maintaining optimal laptop performance. Perfect for users needing a replacement or a spare battery, the Asus Laptop Battery Pack offers convenience and peace of mind for all your computing needs. Compatibility for ASUS Notebook E Series: This power adapter is specifically designed to be compatible with ASUS Notebook E Series laptops, ensuring a perfect fit and reliable performance. Battery Capacity: With a capacity of 42Wh and an output voltage of 11.55V at 3640 mAh, this adapter provides sufficient power for efficient charging and operation of your ASUS laptop. Recommended for Laptops: Ideal for use with laptops, this power adapter is a recommended choice for users looking to replace or have an additional power supply for their ASUS notebooks.