This is a new-type bag for notebook computer with portable power, cooling-plate & shock-proof liner bag. We call it power bag. It can be used for at least 3 to 5 hours for different type's notebook computer. The use of time reaches to twice of the original battery. It uses the polymer lithium batteries with better safety performance& longer cycle life. The bag has good heat dissipation because it uses the aluminum plate at the bottom. This structure is designed for reducing the high temperature causes to the computer system halt. The bag is made by eco-leather, environmental protection and durability. At present, the two largest problems for the notebook computer are the short using time& bad heat dissipation, through the invention of the power bag to solve these diseases, provide users with great convenience. This' the good product for the mobile office, business travel, outdoor adventure, field trips to provide adequate back-up energy.