Yes that’s what Mr GG thought you likely had. Our generator is designed for batteries. Our stuff works like a charm. He does have to filter it though.
I filter through a double coffee filter.
My setup is rudimentary.
I figure it is “done” by shining a laser through it - the more visible the laser in the water, the greater the ppm. I just estimate from there. Taste is also a way I estimate completeness. It tastes like metal!
One advanced concept I did is fabricate a mixer/stirrer device: I bought a servomotor from a robotics supply. It was about $5. I mounted it on top of the jar; it works off an 18650 battery (3.7v) and stirs slowly in between the cathode and anode, and thus prevents any connection of current between the 2.
I needed a stirrer because the gunk would build up on the cathode/anode fairly quickly. I do not know what the gunk is; I use .9999 fine silver and distilled water. Maybe it is due to the traces of contaminants inside the jar.