METHOD FOR ESTIMATING A HEALTH CONDITION OF A BATTERY OF A POWER SUPPLY DEVICE OF A SYSTEM

摘要

The invention relates to a method for estimating a state of health of a battery of a power supply device of a system, the method comprising the step of voluntarily cutting power to the system by a source of power. main power supply, determine a delivered power given by the battery to said system and measure a voltage across said battery, restore power to the system, determine a theoretical total discharge time of the battery, determine a partial discharge curve of the battery and extrapolate said curve to deduce a total discharge curve of the battery and thus estimate an actual total discharge time of the battery, to deduce the state of health of the battery.