so what exactly am I holding here? It put a decent chip in the wrapper on the positive end of a fairly new fenix protected cell, I’m not willing to crank the tailcap any harder. it is the exact same length as klarus MI-7 which has no problem with that cell and slightly shorter then Lumintop tool AA with the clickie installed. I would say all 3 of these lights have about the same output on highest settings, with 14500, with the sofirn being the warmest tint and tightest hot spot.
Received a red SP10B and tried it with an older Keeppower 14500 840mAh battery. No go. The battery sticks out of the barrel 0.83mm including the plastic surround on the neg end, and the cap does not bottom on the barrel when tightened the same distance. The measured battery length is 54.5mm, so the newer 800mAh (spec 54mm) would be close…(reported working per quote on the SP10A). The cap appears to have some unanodized threads at the base. Carefully scraping around the initial barrel threads allowed contact, but the back does not seat fully seat.
I would not recommend the 840mAh battery with this light……electrical contact puts a lot of pressure on battery terminals…just too long….
FYI, I have a Sanyo protected (EVVA) 14500 cell that is 52.3mm long, and it does not work in my red SP10B either. My shorter unprotected Sanyo cell works fine.
