Series of 2 Cells not working as plan a lot less gas

[chil777]

I have built a 2 cell unit of 316 Stainless Threaded Rods with a area of 40 SQ Inch each. I mounted the rods to the top of a screw in cap for the 3inch pvc. I am trying the cells in glass jars first. I filled both with hot water and then added electroylte to bring each cell up to 20 amp. (1/2 amp per 2 sq inch area as I have read). So with each cell in parallel I get a load of 20 amps each. But when they are hooked up in series the Amp draw is 10 amps which is the total for both cells in series which seems right for a series circuit. But the problem is I get a lot less gas production from each cell in series. I am using battery voltage of 12.5 volts. I would not have known this if I just set up the cells in the plastic pipe. Has anyone proved that a person gets the same gas in series with a lower voltage per cell as hooked up in parallel. My rods are 1/2 inch apart. The only thing I know to do is add electrolyte to bring each cell up to 40amps in Parallel and then maybe the current draw with be 20 amps in series and I might get better gas production.

[nakros]

Hi Chil,

Here are a few things you may want to consider:
-If you have 12.5v per cell (in parallel), you are probably getting a bit of heat being generated -- This may or may not be contributing to some of the extra gas production (coming off as steam/vapour). After running for a few minutes, are the jars hot to the touch? How about the threaded rods?

-Check the resistance/impedance of both cells. If they are not very similar, then your electrolyte concentration may be too strong or too diluted in one of the cells.

-As a point of safety, while you're testing with the glass jars, try not to seal the jars at all. If some of the gas builds up and a spark or something else ignites the gas, flying glass shards would be a frightening thing.

Lastly, how long did you run the cells in series? Typically, you'll find that the amperage gains quite a bit over time.

Hope this helps,

Greg;