Portable power source who charges by oneself

The utility model discloses a portable power source who charges by oneself, including portable power source main part and latch closure, portable power source main part and latch closure are the semi -circle, and portable power source main part one end is passed through the connecting piece and is connected with latch closure one end, the portable power source main part outside is equipped with USB interface and switch, inside battery, magnet and the spring of being equipped with of portable power source main part, and magnet lies in the spring inboard, and the spring both ends are connected with the positive negative pole of battery through the wire respectively, are equipped with the rectifier bridge between spring and the battery, the battery passes through the wire and is connected with USB interface and switch respectively. The utility model discloses simple structure, reasonable in design, convenient to use can fix on the ankle, can charge to the battery of inside when walking or running, when the elect