Thank you for this information, I was totally unaware that PK was involved.
Last year I found some Vital Gear "spares" that I had/have stored away.
I have quite a few myself. I like the 3 cell bodies because I used to EDC them with two AW17500's and and a Lumens Factory 7.2 volt lamp assembly in an E2e head. I haven't in years, but I have one ready to go on the shelf. And the AW batteries still work after all these years as well.