CR123 (and others) depletion torch running order

[abvidledUK]

We all know different torches have different cut-off voltages below which they won't continue to work, or even fire up.

I have an order of useage, so I don't throw away part used cells

CR123
P3D >> Ultrafire A1 single CR123 >> Home mod single CR123 Superbright 1v-5v led torch.


9v PP3
Smoke alarm >> Home DIY 9v LED torch

Yours ?