| 摘要 |
<p>According to the present invention, an auxiliary battery for a portable terminal comprises: a main body having a triangular shape for forming a convex curve on a lateral side thereof; a circular battery cell stored inside the main body; a charging terminal positioned on an upper part of one side of the main body for supplying electricity from external power to the circular battery cell; at least one output terminal positioned on an upper part of one side of the main body for supplying electricity with a portable terminal; a power supply terminal which is exposed to the outside as formed on the upper surface of the main body, and supplies power to an external device detachable on the upper surface; and a control part which is connected to the circular battery cell, the charging terminal, the output terminal, and the power supply terminal, prevents excess charge and complete discharge of an auxiliary battery, and controls power supplied to the output terminal and the power supply terminal.</p> |
