Patent ID: 7508168

Claim:
An electronic apparatus having a remaining battery power indicating function, said apparatus comprising: a main body having a plurality of display modes; and a battery assembly for supplying power to said main body, said battery assembly including a battery cell and control means for generating information on a discharge current from the battery cell and transmitting generated information to said main body, wherein the main body further includes: a memory for storing a plurality of information corresponding to each of said display modes; and, a remaining battery power indicating means for calculating and displaying a plurality of estimates of remaining battery operational life of said battery assembly based on said plurality of information stored in said memory graphically, wherein a remaining battery capacity of said battery assembly relative to maximum possible charged state is calculated numerically, wherein the remaining battery capacity is a common value regardless of the plurality of display modes and each of the plurality of estimates of remaining battery operational life is a function of one of the plurality of display modes, wherein the remaining battery power indicating means display the remaining battery capacity and the plurality of the estimates of remaining battery operational life simultaneously as the remaining battery power information, and wherein said main body further includes an operation means for displaying the remaining battery power information even when said battery assembly is being charged.