Gear Flashlight Batteries: Replacing CR123s With 16340s By Jay Lagare on Friday, April 21, 2023 I see if it’s possible to replace CR123 (3.2V) lithium batteries with 16340 lithium-ion batteries (4.2V) on a SureFire G2 Nitrolon with an LED module. Do not try this on a halogen module! 16340 battery cr123 edc flashlights g2 nitrolon gear surefire upgrade Previous Post Next Post Related Posts Gear NexTool Micro Sailor S0 Gear Brinyte PT-16A Tactical Flashlight Gear 711L Flex Head Ratchet Wrench and 1/4″ Hex & Square Socket 2-in-1 Extension