USB-C TP4056 Charge Port Retrofit Bezel
A panel bezel for adding USB-C charging to an old flashlight, boombox or cordless tool. You bolt it behind a hole in the case with two M3 screws on a 43 mm pitch. A TP4056 USB-C charger board (up to 22 mm wide and 29 mm long) stands against the backer wall and is held by two zip ties. The board's connector end sits over a 12.5 x 7 mm plug window in the 2.4 mm flange, and an M3 self-tapping screw in the top tab backs the board so it can't be pushed in when you plug in the cable.
electronics tp4056 usb-c battery-retrofit
⚠ Flagged: battery or DC power. Not for safety-critical use without independent engineering review.