The 9 - Cell 71Whr Li - Ion Laptop Battery is designed for Toshiba Satellite A100, M105, M110, M115, M40, and M45 series notebooks. With a capacity of 6600 mAh and a voltage of 10.8 V DC, this rechargeable battery ensures reliable power for your device, allowing for extended usage without frequent recharges. Its lithium - ion chemistry provides better usability and longevity, making it an ideal choice for users seeking dependable performance. This battery is a perfect spare, ensuring your laptop is always ready for use when you need it.