I made one myself at home ,
i think it works not bad ,
material = plastic bottle , gas hose < i'am using 9mm transparent type > and sponge like thing that you often get when buying delicate items like computer...
VS is many capacitors
connected to the + and - of battery
to . 'stabilize' the voltage? (supply voltage when there r extra need for a very short time)?
so is it possible to install on other place other than...