Apr 3, 2024 #1 M md17 Enlightened Joined Oct 28, 2023 Messages 205 Location usa ct I have an older Fenix TK 21. Does anyone know if it is safe to use unprotected 18650 cells in this light. Most protected cells are too big. Thanks
I have an older Fenix TK 21. Does anyone know if it is safe to use unprotected 18650 cells in this light. Most protected cells are too big. Thanks