Built-in general battery for mobile phone

The utility model discloses a built-in general battery for a mobile phone. The side surface and the bottom surface of a battery body are fixedly connected with an L-shaped bent pad rubber, and the cross section of the bent pad rubber is in the square shape. A battery contact pad can move vertically and horizontally on five surfaces of the battery body to supply power for the mobile phone through a plurality of power supply contacts. The built-in general battery is simple in structure, low in cost, easy to install, wide in application scope, convenient, practical, durable, safe and reliable, thereby resolving the problem that an existing battery is not fully used. The battery contact pad is used for being connected with the power supply contacts of the mobile phone and can move vertically and horizontally on five surfaces of the battery body. When the contact pad moves to location of the mobile phone needing to be supplied power, the contact pad supplies power for the mobile phone. Thus, general function is ac