APPARATUS FOR INDICATING REMAINING ELECTRIC CHARGE OF BATTERY AND DEVICE FOR POWER SUPPLYING AND RECHARGING COMPRISING THE SAME

摘要

PURPOSE: A device for indicating the electric charge of a battery is provided to stably maintain the performance of the battery and to check the charging residue of the battery easily and quickly. CONSTITUTION: A device for indicating the electric charge of a battery comprises: a conductor part containing a light emission part, which is connected between one electrode connected to the positive electrode of the battery, and the other electrode connected to the negative electrode of the battery, for light-emitting with a brightness corresponding to the voltage of the positive electrode and the negative electrode of the battery; and a non-conductor part preventing electrical conduction by surrounding residue areas except the area where the one electrode and the other electrode are connected to the battery. The conductor part additionally comprises a contact spot switch(40) controlling the light-emission of the light emission part by electrically connecting to one electrode or the other electrode.