Wiggling wires, poking connections, and pressing on contacts… That kind of thing might be ok on a breadboard or a hand-etched PCB. If you plan on selling your products… well… reliable / solid mechanical connections aren’t optional. Have you ever used a CR2032 or CR1025 coin-cell battery in a project? They’re great for real-time clocks, can drive simple LED circuits, or can be used as a primary power source for low-power projects.
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