I\'d remove the battery as well, constantly keeping it on charge will wear the battery out. Every other component should last a lifetime (assuming you\'ve turned the LCD backlight off too)
Somehow I\'ve managed to get my C760 to boot up without a battery, I think if you take out the battery and lock the lid again but keep it in the cradle with AC power it may just work. If not then you\'ll have to think about buying another battery in the long term if you want to leave it on all the time.