Patent ID: 8823325

Claim:
A method for checking and modulating capacity and power based on battery charging/discharging characteristics, comprising: measuring a relationship between an open circuit voltage and an output electric capacity of a battery to obtain a first characteristic curve; measuring a relationship between a voltage and the output electric capacity of the battery at a predetermined maximum discharge current rate to obtain a second characteristic curve; selecting a first characteristic point and a second characteristic point from the first characteristic curve and the second characteristic curve respectively, wherein a voltage value corresponding to the first characteristic point is higher than a voltage value corresponding to the second characteristic point; establishing a characteristic boundary line passing the first characteristic point and the second characteristic point, wherein the first characteristic curve, the second characteristic curve, and the characteristic boundary line constitute a battery discharge boundary line to define an operation range; and managing the battery discharge within a discharge voltage range according to the output electric capacity of the battery, so as to keep a voltage-capacity curve falling within the operation range.