So - you have answered your own question - if you pause from insulating me and think.
770kJ, 100,000X => chemical < 7.7J
You say 80J - 10X higher.
Okay so it is only 10,000 times above chemical energy. Sue me! I am off by 1 order of magnitude, and you are off by 5.
Besides, you are wrong. As I explained, there would only be 80 J of chemical fuel in the cell if there was free oxygen, and there was no free oxygen. Furthermore, the only way to produce the 80 J would be to completely degas the cathode, and soon as that happened, the cold fusion reaction would stop.
The actual chemical fuel in this cell could only produce a few joules, as McKubre showed.