Patent ID: 8057062

Claim:
A portable electronic device, the portable electronic device being a notebook computer and comprising: a housing formed with a battery-receiving compartment, said battery-receiving compartment having a wall face with a positive electrode and a negative electrode disposed thereon; and a battery mounted removably in said battery-receiving compartment of said housing, and including a casing having a surface provided with positive and negative electrodes that extend into said casing, said positive electrode of said casing being electrically connected to said positive electrode of said housing, said negative electrode of said casing being electrically connected to said negative electrode of said housing, a power storage unit contained in said casing, and provided with a positive electrode electrically connected to said positive electrode of said casing, and a negative electrode electrically connected to said negative electrode of said casing, a switch mounted on said casing, said switch being provided with two ends, one of said ends being electrically coupled to one of said positive and negative electrodes of said power storage unit, and at least one light-emitting element exposed outwardly of said casing, said light-emitting element being provided with two ends coupled respectively with another one of said ends of said switch and another one of said positive and negative electrodes of said power storage unit, said power storage unit being controlled through said switch for supplying power to said light-emitting element so as to cause said light-emitting element to emit light.