> The "800%" claim seems totally bogus.

Maybe "bogus" is to strong but I would say "suspect".

The "proof" in the article could be summed up as:

1) A demo to the writer which (and I'm not suggesting this is what happened) any magician could have pulled off

2) A statement from an authority source "Dr. Kiumars Parvi" "with the physics department of San Jose State University" who said "we confirmed that the Batteriser taps into 80 percent of energy that is usually thrown away"

Neither item confirms anything like 800% nor do I remember seeing any independent testing to prove that point.