Portable power source subassembly

The utility model provides a portable power source subassembly, including shell and the portable power source who is applied to the electronic product, the electronic product joint in the medial surface of shell, portable power source combines in the dorsal surface of shell through setting up strength magnets, it has first trench and second trench to open on the shell, and forms first protruding piece and the protruding piece of second on the lateral surface respectively, set up first magnet and second magnet in first trench and the second trench respectively, portable power source is provided with third trench and fourth trench in the one side of shell, third trench and outer outward appearance adaptation protruding first, the outer outward appearance adaptation of the protruding piece of fourth trench and second, portable power source's inside sets up third magnet and fourth magnet, just third magnet and fourth magnet lie in third trench and fourth groove bit position respectively. The utility model disclos