In my design I have super capacitor (1.5 F) of maximum rated voltage of 5.5 V. I am charging it to only 3 V. I am using boost converter to convert it to 3.3 V so that I can utilize the super capacitor at lower extent and at the same time it is not charged to higher side (near 5 V) so that stress is less and super capacitor life is more. boost converter can convert from 1-3.2 V to 3.3 V.
Is my designing is correct? Is using super capacitor down up to 1-1.2 V correct idea.