EDC storage & 14650 → 21700

🇬🇧  Project Description – 14650 → 21700 Adapter with EDC Module for Data and Emergency Charging  I present a 14650 to 21700 adapter / converter project that serves as a multi-purpose EDC adapter. The design is engineered to fit flashlights and devices compatible with 21700 cells. This project aims to combine micro SD data storage, an emergency nano SIM kit, and a mini charging kit into a single, waterproof original body that offers IP7X protection as guaranteed by the manufacturer   Applicatio