Before the results started to roll in I thought about a camera flashgun as an intermittent high current use of batteries. But then I started thinking it is hopeless if you resort to finding very specific uses in order to justify these devices. If your demand for batteries in camera flashguns was enough to justify fart-arsing around with batterisers then you would almost certainly be able to justify rechargable cells anyway. And that is assuming batterisers were going to be useful at all.
The chief benefit of a fresh battery in a flashgun is rapid recharge time and a rechargable cell has the edge over alkalines. The other issue with camera flashguns is outdoor cold temperature use. Cold batteries perform poorly so if a batteriser could overcome that it would help. But they won't because they would demand even more from the cold cell. So it seems hopeless.
About 95% of the photographers I know - me included - use rechargeable batteries in their speedlights, usually Nikon or Canon, but also and YongNuo, Godox or anything between (nobody uses Vivitar!). The prefered brand is, by far, Eneloop, specially the black ones. I am one of those use use Eneloops black, and the only non-rechargeable battery that lets the flash be ready as quickly is the
Energizer Ultimate Lithium. Everything else is crap compared to these two. Regardless of that, and I've written this before, I am willing to bet money that a Batterlooser will never fit a Nikon, Canon or YongNuo speedlight (at least none of the current models), because AA batteries are already a snug fit.
People who shoot in studios usually use continuous lights, so batteries are an irrelevant subject (except for the remote controllers, like Pocket Wizards and such), or expensive lights such as Profoto, that will have its own external battery pack.
My AA's just arrived.
See if they fit into anything
That might take a while!
TSA travel friendly? But what about the FAA, if they start melting people's devices. And given the way one 'bit' Dave, are they really TSA friendly? ![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
In the big picture, Batterloosers are irrelevant and it might be ages before FAA or IATA even hears about them.