Is that a typo? I cannot find CR1832 batteries when I look for them. The search pulls up CR2032 and CR1632, but I cannot find any reference to CR1832 batteries.
I think it could fit in my lightsabers to light them up, if it is bright enough. I don’t see any information about the brightness (lumens) of the LEDs either.
Looking closer, it does say “one battery and one magnet included”. So maybe it is worth trying it out and seeing what that battery REALLY is. Maybe it is a CR1632. Otherwise, I don’t know where I could find replacements.
EDIT: I went ahead and ordered a couple to try. I will report back on my findings when they get here.