Levipower Laptop Battery [11.1V / 5200mAh / Li-ion] replacement for Toshiba Dynabook T350, T551, TV / 74, TX / 77, Toshiba Satellite Pro U400, NB510, Mini M800, Portege M800, M900 Series (Personal Computers)
Cheaper than other batteries, the computer works perfectly on my daughter to see in the course duration.