Q: "I am trying to understand your work, but i have noticed that the 1 you built (on the picture) does not have the 22uF 50v capacitor, this capacitor is shown on all the drawings you have posted,"
A: I had small enclosure that would not allow me to fit the LED on the case, so I omitted the LED circuit. The device will work with out it. Its purpose is just to tell you your battery is still strong enough.
My second enclosure had more front cover space so I was able to include it on that build.
Take photos of front and back and upload those so i can see it. If possible take multiple photos so I can see polarity of caps.