Had to goggle it. Looks a lot like my EC50.
Unfortunately, a lot (stopping short of saying “most”) lights have onboard charging nowadays. To get one without, you either gotta look to older models or go for a diving light.
Lotta dive-lights, though, are not just longer, but also have wider heads. Only exception I can think of is the DV-S9.
Rather’n retype everything, I posted about it ages ago: Ultrafire DV-S9 diving light? .
Great light that’s essentially a 26650 tubelight, so nice and relatively compact.
Also a good idea to use a long-ish tether in place of a lanyard, so it doesn’t go overboard without being able to pull it back up.