Which Armyteks are they? I have over a dozen Armytek lights and I use the Tiara C1 Pros modded by Clemence with E21A on a daily basis. One 18350 Tiara C1 Pro, I leave on moonlight 24hrs a day in the kids room and didn’t drain the batteries yet for almost 3 months already.

Fortunately none of the Armytek failed yet. Hopefully they will not.