Point to you, LC, for bringing up a good point I hadn't considered.
I own an arctic blue stunt with regular batteries, and it looks like the batteries will be dying soon (I estimate I've gotten 2, maybe 3+ hours out of the original batteries so far), as the color is looking less blue and turning towards a dingy, murky green. (The arctic blue on this saber is definitely made out of green and blue, rather than blue and white as on another arctic blue saber I own.)
Now I know some of y'all out there have some Obsidian Lite sabers, so spill the beans! What kind of battery life do they get?