| 摘要 |
An apparatus which is capable of providing an advance warning for indicating excessive discharge of a battery, during the supply of electric power from the battery to a load, prior to the battery being unuseable for powering the load. The apparatus comprises first power supplying means for initially supplying power from the battery to the load, supervisory control means for continuously monitoring the residual or current power capacity of the battery and interrupting or reducing the supply of power to the load when a predetermined quantity of power consumption is detected, and second power supplying means for supplying, subsequently, the residual power of the battery to the load when the first power supplying means is rendered inoperative.
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