| 摘要 |
The present invention relates to a mobile terminal protective case with a built-in auxiliary battery, which comprises: a case main body detachably coupled to a rear surface of a terminal main body of a mobile phone, and having a battery mounting portion that an auxiliary batter is mounted therein, formed at a front surface; a first connection means equipped in the case main body, protruding toward a rear surface direction of the terminal main body, and electrically connected to an auxiliary power terminal of the auxiliary battery; and a second connection means electrically connected to a main power terminal of a main battery in order to connect the auxiliary battery with the main battery mounted to the terminal main body in parallel, and electrically connected to the first connection means. According to the present invention, a finishing cover is removed at a rear surface of the terminal main body of the mobile phone, and then when the mobile terminal protective case with a built-in auxiliary battery is coupled to the terminal main body, the electrical connection between the first and second connection means is performed, and the auxiliary battery and the main battery mounted to the terminal main body are connected in parallel, thereby using the mobile phone for a long time even without replacement of the main battery. |
