About the golf GPS test,
First of all: yes I know I was wrong thinking this was a Dakota at the wrong battery setting at first,but before drawing more wrong conclusions I think we have to look a little closer:
1) GPS devices don't like to be inside
It's very hard to get a 'fix' when inside a building, and for the older generation receivers it's nearly impossible. During this search the receiver will probably be more power hungry.
A 'cold fix' takes even longer since it has to gather the almanac data first before being able to calculate it's position. So whatever time the Garmin can run on a set of batteries in this test, it's not 1:1 comparable with real live experience.
2) About the finger:
Knowing Garmin software, the device could ask "Are you indoors?" or something like that after a minute or so without reception. I think they need this force the GPS receiver to stay active
3) Look at the current graph again that they gave us:
It's clearly switching to some powersaving mode after 1.5 hours. It also looks as if it goes from constant current to constant current (or the voltage didn't drop anymore.) But they did leave it running for a while after it switched mode.
4)
Running at full power for 10 hours with the batteriser against only 1.5 or 2 hours without is still a huge plus for the batteriser IMHO. ->Which is for me is a big reason to believe something else/something more is going on.
But at the end it isjust a waste of time speculating how the got their nice results. Only independent tests can tell what the batteriser (or just the technology) is capable off. And the fact we don't see that should say enough.