Patent ID: 8629653

Claim:
An electronic apparatus comprising: a housing having a predetermined face; a power receiver that receives electric power in a contactless manner by way of the predetermined face; a secondary battery that is charged by electric power received by the power receiver; a front-back detection unit that detects whether or not the predetermined face faces a charger; and an alarm unit that notifies that the predetermined face is situated at a position inappropriate for charging when the front-back detection unit detects that the predetermined face does not face the charger, wherein the housing has a first surface serving as the predetermined face and a second surface that is opposite to the first surface, an acceleration detection unit is provided as the front-back detection unit, the acceleration detection unit detects gravity of +1 when the first surface is situated down, whereas the acceleration detection unit detects gravity of −1 when the second surface is situated down, and the first surface is detected not to face the charger when the acceleration detection unit has detected a predetermined gravity from −1 to 0.