| 摘要 |
A battery life alarm system and a battery life alarm method are provided. The battery life alarm system includes a first arithmetic unit, a second arithmetic unit and a third arithmetic unit. The first arithmetic unit outputs a capacity ratio according to a sense voltage and a design capacity of a battery. The second arithmetic unit outputs a life ratio according to a used life parameter and a design life parameter of the battery, wherein the used life parameter and design life parameter correspond to the using time or the charge/discharge times of the battery. The third arithmetic unit outputs a life index according to the capacity ratio, the life ratio and a weighted percentage. |
