Code now public! BLF A6 FET+7135 Light. Short 18350 tubes and Unanodized Lights Available

Would 4.35v batteries be safe to use?

Edit: I thought it would be helpful to post ReManG’s picture of how compact an 18350 sized tube could make this light. Sign up fast if you’re interested! 18350 Battery tubes for BLF A6, Eagle Eye A6 and X6, as well as codes for short Convoy S2+ tubes in Blue and Red!