| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of predicting the amount of a battery residual of a battery charger with high accuracy even at low cost.SOLUTION: A battery pack includes: a voltage detection section for measuring a battery voltage and a battery temperature of a battery; a calculation section for predictively calculating the amount of a battery residual; and a control section for controlling the calculation section. A battery residual amount prediction flow recursively calculates the amount of the battery residual, and a secular change estimation flow estimates a secular change of battery characteristics by using such a case that a battery current is in a constant current state.SELECTED DRAWING: Figure 1 |
