Patent ID: 7688025

Claim:
An electronic device comprising: a battery-pack installing portion that holds a battery pack in a detachable manner; sensing means for sensing that a battery pack is installed in the battery-pack installing portion; specification requesting means for requesting predetermined specification data from the installed battery pack; detecting means for detecting predetermined specification data responsive to the request, related with a state of the installed battery pack sensed by the sensing means; determining means for determining whether the battery pack has a fault by comparing the detected predetermined specification data to manufacturer data stored at the electronic device; first restricting means for restricting a recharging operation of the battery pack if the battery pack is determined to have the fault based on the comparison at the determining means; and a feature-data requesting means configured to request feature data from the installed battery pack if the battery pack is determined to not have the fault based on the comparison at the determining means, wherein said manufacturer data includes predetermined specification data and predetermined feature data of the battery pack, the feature data indicating that the electronic device is to operate in a specified mode when the battery pack is installed.