CHARGED-STATE INDICATING SYSTEM

PROBLEM TO BE SOLVED: To obtain a charged-state indicating system which allows a color blind or color weak user to easily discriminate the charged state of a battery, by providing a control means which discriminates the charged state of the battery while the battery is charged and, at the same time, drives a sounding means based on the pattern corresponding to the discriminated charged state. SOLUTION: A battery charger is provided with a sounding body (bell, buzzer, etc.), 3 which can produce four different timbres by using two control signal lines. A controller 1 outputs one of four kinds of pattern information corresponding to the charged state of a battery to the sounding body 3 based on the discriminated one of four different charged states. The four kinds of pattern information are prestored in the controller 1 correspondingly to the four kinds of charged states. Therefore, a charged-state indicating system can provide a color blind or color weak or blind user with information on the charged state of the battery.