Reasons for Power Loss When Charging Portable Power Stations with Solar Panels

1. Wire Resistance Loss: Power loss due to the resistance of output cables and contact loss at the connectors (contact resistance). Additionally, the portable power station's internal charging controller may have conversion efficiency losses, and the solar panel itself may experience power degradation due to increased operating temperature.
2. Two 100W Solar Panels Charging Less Than 135W: This issue mainly applies to the Explorer 1000. Two 100W solar panels provide a charging current of about 11A, while the Explorer 1000 has a current limit of 7.5A for charging. The excess current cannot be utilized. (Solar charging must account for the charging acceptance capacity of the portable power station.)
3. For the SolarSaga 200W Solar Panel: The 200W is the nominal power of the solar panel, which is the data measured under ideal laboratory conditions. In actual usage, due to various factors (such as light intensity, angle of irradiation, air quality, ambient temperature, and the internal charging circuit's conversion efficiency of the portable power station), the power output will not reach 200W.