goTorch - DIY 20W portable flashlight & powerbank

goTorch is a powerful and compact flashlight that uses 18650 batteries. It can be recharged via USB-C and can also fast charge your phone.

Super useful for camping! Also the cube form factor makes it easy to design different accessories to adapt it to your needs.

The current design does not need any glue as everything is designed to fit in place. There are only 4 screws and nuts (M3 10mm size) needed which are the ones that hold the LED in place.

The max. amount of batteries that can be used are 3 16850 or any other battery you can fit inside the 2nd “floor” of the case. I ussually use “recycled” batteries form old laptops. For charging the goTorch, I use a type C tp4056. As the LED uses 12-15v we also need a step-up. Finally, for the “power bank” capability an all in one module is used.

Part list:

Included in a .txt file.

Recommended print configuration:

• Material: PETG or ABS
• Layer height: Around 0.2-0.28 works great
• Supports: No

Assembly:

1. Place the led's metal bracket with its lens and reflector.
2. Place the led on top and use the “led holder” model to screw everithing in place.
3. Stick the heatsink
4. Solder the battery pack and add the BMS.
5. Before proceeding you should prepare 2 pairs of wires for the TP4056 and the fast chaging module.
6. Solder the step-up to the battery and place it at the bottom where the led is, you MUST properly insulate the step up.
7. Add the second floor printed part and place the battery. There is no need to glue it but you can if you want.
8. Solder the TP4056 and the charger module.
9. Snap fit the cover
10. Your goTorch is done! Enjoy