I have the same problem with my 7310. It claimed about 2.5 H battery-life.
But it works only 45 minutes with doing nothing on it, with the medium brightness of LCD panel.
Complete sh*t...

vatk wrote:Is your battery new?
frankiepankie wrote:I tried to make the flashing of the good bios backup automatic, but i doesn't do anything![]()
It only boots, gives the beeps then nothing.. the screen remains black