| 摘要 |
<p>A portable terminal includes a charging control system. The system supplies electric power to the battery. If the battery is charged completely, the system stops chargin g the battery temporarily, adjusts the termination current, and then charges the battery t o the preset second charge capacity. The system can recharge the battery if the battery of the second charge capacity undergoes a natural discharge for a certain time period b y a certain rate of the second charge capacity, for example, 1 %, or if the maximum volta ge corresponding to the second charge capacity drops by 1% of the maximum voltage. Therefore, the system can retail the maximum charged state of the battery.</p> |
