I hooked up all my gear last night for a bench test in my garage. I was running everything off of a small car battery with a PWM, HHO Cell, and a Ammeter.

The whole time the system was running the ammeter was showing a large fluxation in amps, usually between 7.5 to 15amps. It would go up to 15, then down to 7.5, then back up to 15 in about 5 second intervals. I think the ammeter was correct because when it went up to 15amps some bubbles came up the tube, then when it dropped back down the bubbles stopped.

Is this normal? Is the car battery I'm using too small and not allowing enough current to be pulled? Am I doing something wrong?

Thanks,

-James