Btw, I found your DC electrifier makes Colloidal Silver much faster than the other Colloidal Silver makers I have. I assume it's the higher volts at 36 volts vs. the other ones which are at 27. The DC electrifier can have the batteries charged up from the outside and I make lots of Colloidal Silver , for various purposes, so that has now become my main colloidal silver generator. Old adage > adapt and overcome. :)