... hours laptop operating time, or 10-20 hours netebook(tablet PC) operating time;8) With internal protection functions for ... safe, stable and energy-saving;9) Built-in battery tester button with battery level and charging LED indicator;10) Attached multiple ... for other portable digital products.Devices Supported:Notebook Computers, Netbooks, Tablet PCs, iPad, mobile phones, MP3 players, MP4 players, PDAs ...