Dear Replus, I am familiar with Energic Plus, Zulu and some, but not all of the other products you mentioned earlier. Are you installing pulses on the batteries as well? Chemicals? I too am very interested in any honest accounting in this field. By the way, on Thursday we returned a 36 volt, 825AH spill proof - maintenance free GNB with a final efficiency of 89%. A perfect candidate for rejuvenation, the warranty for this battery had recently elapsed and it was only giving them a shaky quarter shift with 49% EFF. It required 5 cycles of our system and a few drops of distilled to achieve a full 40% increase in EFF. The highly productive, double shift produce co. in question is ecstatic to get a battery back that will endure an entire shift GUARANTEED by us over the next year, rather than forking over the cash to replace it. Do not fear, manufacturers. The new battery market will hardly perceive our humble tinkering. Sales reps on the other hand may eventually want to expand their bag of wares.