Part #/ Keyword
All Products

DIY Tool Light Modification with a Power Bank

2026-09-23 15:02:56Mr.Ming
twitter photos
twitter photos
twitter photos
DIY Tool Light Modification with a Power Bank

If you happen to have several tool lights that are missing their switch buttons, but their functions are still working properly and they can light up normally.

image.png

However, they always drain the battery very quickly, which can be quite inconvenient. If you happen to have a power bank, you can modify the tool lights with it.

 image.png

You can start the modification from the bottom of the light.

 image.png

Remove the outer housing, and you will find four screws underneath.

 image.png

After removing the screws, you will have four mounting holes. You can then use a 3D printer to make an adapter compartment, which can connect the light to the power bank while also allowing you to add a power-off switch and a light switch.

 image.png

Next, you need to solve the power supply issue. Open the front panel, where you will find the Micro-USB input and 5V USB-A output. You can add USB-C charging later.

 image.png

You can take power directly from the positive and negative terminals of the battery. The battery consists of three 18650B 3400 mAh cells, providing a total capacity of 10,200 mAh when connected in parallel.

 image.png

The battery supports a 5A discharge, and three cells connected in parallel are more than enough to power several LED lights.

You can route the wires out from the back.

 image.png

Install the original bottom plate for insulation, and drill a hole to route the wires out.

 image.png

Then tighten the rear screws, and the assembly will be very secure.

 image.png

You can use four 2.5 mm stainless steel screws.

 image.png

Remove the spring clip from the LED light.

 image.png

Drill holes for mounting.

 image.png

Use a sleeve to protect the wires as they pass through.

 image.png

Install the switches, tighten the cover, and the modification is complete.

 image.png

The tool light also has a magnet on the tail.

 image.png

The red switch is the power-off switch, while the black momentary switch controls the light. Press it once for low brightness, press it a second time for high brightness, and press it a third time to turn the light off.

 image.png

image.png

You can go for an entire week without charging it. The modification is complete.

image.png

* Solemnly declare: The copyright of this article belongs to the original author. The reprinted article is only for the purpose of disseminating more information. If the author's information is marked incorrectly, please contact us to modify or delete it as soon as possible. Thank you for your attention!