Peter Evans

I have this 2.7V 500F super capacitor bank but it seems to me that there are two pins on each capacitor that are there ready to be soldered but were not. I have seen videos of the same capacitor bank from green-cap and it seems to me that the ones I see on youtube have these pins soldered. I wonder if anyone could shed some light on this for me. I have tested the voltage and raised it some and lowered it some and it seems to work so I am wondering what is going on with these pins. Thank you kindly PeterE