Patent ID: 7038425
Filing Date: 2006-05-02
Classification: G01R,H02J

Abstract:
1. A method of measuring and displaying an actual quantity of electricity of a rechargeable battery being charged by an external power source via a charger, the method comprising the steps of: (a) issuing a predetermined power out signal from said charger to temporarily disable the external power source; (b) sending a signal indicating the actual quantity of electricity of said rechargeable battery as feedback to said charger in response to said disabled external power source; and (c) configuring said charger to have a predetermined reference voltage so as to compare said reference voltage with a voltage of said feedback actual quantity of electricity of said rechargeable battery to obtain a voltage ratio with respect to the actual quantity of electricity of the rechargeable battery, and issue a display signal to a display for displaying a measurement based on said voltage ratio.