MPPT circuit solar controllers are considerably more elaborate than PWM. The voltage of the solar panel changes with time of day and temperature. The optimum voltage for battery charging changes as the state of charge of the battery. The MPPT charge controller matches these voltages and can result in 30% more efficient transfer of power.
ˆ MPPT technology
ˆPeak conversion efficiency of 97%
ˆHigh Tracking efficiency of 99%
ˆSeveral seconds tracking speed
ˆ4-Stage charge with PWM output
ˆNature convection cooling