In a method of reflow soldering, a non-aqueous electrolyte secondary battery is discharged to a first discharge voltage different from a second discharge voltage at an inflection point in a discharge curve of the non-aqueous electrolyte secondary battery having an axis of abscissa representing discharge capacity and an axis of ordinate representing discharge voltage. In particular, the impact resistant composition comprises a vinyl chloride polymer and 2-8 parts of an impact modifier composition comprising at least one ethylenealpha-olefin copolymer and at least one chlorinated olefin polymer per 100 parts of the vinyl chloride polymer. A first annular shallow trench isolation region is spaced apart from the first annular p-type region. The microprocessor is used for determining a propagating condition according to the satellite navigation message, estimating a plurality of parameters of a satellite trajectory prediction model according to the propagating condition, and propagating a set of satellite trajectory extension data by using the satellite trajectory prediction model. There are electrically conductive screws for electrically connecting the LED on the circuit board to the electrical conductors and constructed and arranged to simultaneously provide a thermal transfer from the heat conductive substrate to the structural rails.