Patent ID: 8633801

Claim:
A battery authentication system comprising: an electronic device; and a battery that is attachable to and detachable from the electronic device, wherein the battery comprises a battery authentication portion that includes battery identification information and performs authentication between the battery and the electronic device, wherein the electronic device comprises: a power source that supplies electric power from the battery to respective portions in the electronic device; a storage portion that stores the battery identification information of usable batteries; a device authentication portion that performs authentication of the battery; and a control portion, wherein the electronic device is configured to perform a two stage authentication process that includes a first stage authentication process to determine whether the battery is a counterfeit battery and a second stage authentication process to determine whether the battery is a non-genuine battery, and wherein during the second stage authentication process, the control portion compares the battery identification information of the battery authenticated successfully in the device authentication portion during the first stage authentication process with the battery identification information stored in the storage portion, and controls the power source based on a result of the comparison.