UAirLtd wrote:Without knowing more and probing the device (i.e. probing it with a multimeter), I would hazard a guess that the black cylindrical device in the middle is a momentary contact switch, which could be as simple as a spring, which when moved wobbles and touches a contact - either a rod in the centre, or the housing. When the device is moved, the switch momentarily completes a circuit charging the capacitor.
st2000 wrote:I take it there's nothing but the batteries on the other side?
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