Hey all from Element 14! My name is Elliott Leinauer and im a highschool student working on a science fair project. My project encompasses using very low voltage and current and harvesting it to create more voltage to power a high lumen led light! To make somthing like a flashlight. My problem as of right now is trying to store this harvested energy. My harvested energy is supplying me anywhere from .700-1.5v depending on conditions. With roughly .15-.20mA. Im curious to know if its possible to somehow trickle charge a 3.5v lets say 120mah button cell battery in order to give my led light constant power so it stays nice and bright over a long duration of time. Is it possible to do this with the current I have? If so can anyone point me in the right direction as to which button cell battery I should buy?
Keep in mind im realtivley unexpericend with circuitry, I was thinking to raise my current without loosing to much voltage I could somehow incoperate a transistor in the circuit before the power is directed to the button cell. Is this atall possible or am I just talking nonsense?
Thanks!!
