The USB C charging port is located above the LDC screen.
Expose the USB charging port by rotating the handle in an anti-clockwise direction.
This is done by holding the top lens part steady in one hand and rotating the lower handle part with your other hand.
Connect charging cable to the USB-C socket.
While flashlight is charging, the LCD screen will illuminate and show the battery charging symbol flashing.
Once flashlight has reached full charge, the LCD screen will show the battery symbol full.
Once flashlight is fully charged, disconnect the USB-C cable and rotate the handle in a clockwise direction to cover the USB charging port back to the original position
Note: Only use the 26650 battery size for this flashlight