I would think that over the years, for the most part discussion about batteries has been pretty much covered. However, I appreciate all who took a few minutes to talk about them here. If it hadn't been for my unexpected long time where I did not do any shooting, I probably would have gone on without a care about battery life but in case anyone's interested, I did hear from Canon regarding the matter.
So, according to Canon, they don't have any specific data on how long a battery will go until dead while it sits in your camera on your shelf unused. They do of course recommend you don't store your camera for long with the battery in it and I wouldn't but unexpected circumstances struck me. Anyway, with six days of leaving my 7D and 5D3 unused with fully charged batteries (difficult to do now that I'm back in the game), the 7D reports 98% charged and the 5D3 97% charged. Canon agrees (though they don't have "data" on normal) that this appears normal as any time they've seen real problems, it's because the battery has gone down drastically in far less time.
While it's only a matter of a few percentages, it's just another reason to charge em before you use em I guess. Now, on to using the darn cameras instead of wasting time looking at battery percentages