What are the factors affecting the efficiency of MPPT solar charge controller?

What are the factors affecting the efficiency of MPPT solar charge controller?

The voltage of the solar PV array will decrease as the temperature of the array increase. In hot days, the voltage may be close to even lower than the battery voltage. In this case, the MPPT charge controller will have less or can’t obtain the energy compared to the traditional solar charge controller. However, as long as the nominal voltage of the PV module is higher than the battery voltage, the voltage of the PV module will always be higher than the battery voltage. In addition, the MPPT solar charge controller has a significant advantage even in hot weather, due to the reduced current of the solar array and saving wires.