[rookiedaddy]

Have you ever seen a primary CR123A cell with Negative Voltage reading?

here's proof... errr... sort-of...



after a minute


this was use in 2 cells light >> NU-flaRE Rebel 90
I left it running until I can see a very very very dim lit from the LED... when I first pull the cells out, 1 cell reads 2.66V, while the cell at the tail end reads -0.26V... yup... -0.26V .
I thought I had the test lead in reversal... but nope... double checked, triple checked... It reads 0.26V when I reverse the leads.

After 10 hours of resting, the cell reads 1.16V.