hrmmm,, i would think you should be producing around 600 cc's a min, just over half an liter...
what is your cell setup again? you say you used no additiveS? if what you say is true then it is a record breaker! we must investigate!
could you give more detailes about your cell setup? also, are you sure you measured the voltage across the cell, and the amps going to the cell? also is that a 12 volt alternator?