I have a new 12 cell battery for my acer 5535. Computer beeps a warning and shuts back down on start-up. Incorrect battery message. battery is a 12 cell, 10400mAh, AS09A41. The battery is made for an Acer 5517-5535. Does something need to be re-configured in the computer to accept the battery? The battery will run the computer if the computer is plugged in to the AC first and then the battery is installed, then unplugged from the wall. Both batteries are 11.1v