2025 Coin Cell Battery LED Light

prusaprinters

<p>I needed a reusable way to attach a coin-cell battery to a single 3v LED as well as something I could hand to just about anyone without any explanation and they could figure things out just by looking at it.</p><p>Just enough of the battery sticks out where you can remove the battery and put in a new one.<br>One battery will last you for days, maybe even a week.</p><p>I use these to add markers to movie and commercial sets for visual effects, but these are great for decorations or anything that needs a wireless LED light attached.</p><p>Prints quick at 15min for 1, or about 2 hours for a batch of 20.</p><p>No supports needed.&nbsp;</p><p>Pro-tip would be to mark the positive lead on the LED with a sharpie, or something, so it's obvious which is which after feeding them through.</p><p>No tape or adhesives needed, just feed the leads through the top (positive on the + side and negative on the - side) and then bend them outward and back up and they're secure.<img class="image_resized" style="width:47.57%;" src="https://media.printables.com/media/prints/289171/rich_content/8f2d2036-5c8a-46d0-9d2a-f9bc6e62501f/016db279083e6aa04e4e73e3442d264c6b9b40cd84.jpg#%7B%22uuid%22%3A%22ca31aa6f-26c5-4664-ad53-a48112d09468%22%2C%22w%22%3A2049%2C%22h%22%3A1536%7D"><img class="image_resized" style="width:47.1%;" src="https://media.printables.com/media/prints/289171/rich_content/6c44b158-bd0c-45d4-91c5-9bee13e6d8c4/018202ddfb0ac0abf5860ef749ecd9b11f59e4ab33.jpg#%7B%22uuid%22%3A%227db7159a-2c44-4bfc-a75b-8aa6d84eca02%22%2C%22w%22%3A2049%2C%22h%22%3A1536%7D"></p><p>I like to bend the LEDs at 90° towards the negative side, but you can just feed them straight in, if you prefer. (bending them that way gives me a flat side to tape to a wall, add a magnet, or add some velcro)</p><p>&nbsp;</p>