Youse can all use alkaleaks in AA/AAA lights just fine. Just keep the cells separate and in a plastic bag so that even if they do leak, the corrosive ick won’t go beyond the confines of the bag.

Spares too, in case the main cells take a dump.

But in those cases, I’d just skip those hateful little alkaleaks entirely and stick with NiMH cells or Li primaries.