3 Volt Small coin cell holder with separate switch
Specifications on mini battery holder
Measurements of mini battery holder for 3 volt LEDs
3 Volt Small coin cell holder with separate switch
mini battery holder lighting 3 volt LEDs
slide switch on our mini battery holder
mini battery holder with 3 volt LEDs
how to connect to the mini battery holder

Our Smallest Coin Cell Holder

Battery Option
Regular price $2.75
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An easy way to bring power to your 3 Volt LEDs.

Power your  3 Volt LEDs effortlessly with our coin cell holder designed for tiny CR1225 batteries. Measuring just 20mm or 0.8 inches across, this compact flat holder is perfectly suited to accommodate CR1225 batteries, offering a convenient solution for your lighting needs. With the capacity to brightly illuminate up to four of our 3 Volt LEDs, this holder provides a reliable and efficient power source for your projects. Upgrade your lighting experience with ease using our user-friendly coin cell holder.


The outside dimensions of the coin cell holder case is 15mm x 20mm x 5mm (height). We have also added our smaller slide switch to this package.

Slide switch dimensions:

Slide switch2

The height of the slide switch base is 3.4mm
The height of the slide switch sticking up from the base is also 3.4mm
This makes switch's total height 6.8mm


Connect to lights by twisting the red wire on this holder to all the red wires on your LEDs. Protect the connection with shrink tube.

Same with the black wire, connect it to the remaining black or green wires on your LEDs.

How many lights?

We tested 4 chip lights and found them to be nice and bright. More than 4 lights would not be as bright but you can do it! Mega won't be as bright on this battery.  This coin cell battery holder is for use with any of our 3 Volt LEDs

How long does the battery last?

4 lights lasted for 12 hours continuous light before the battery needed a change as the lights were not as bright. You could go longer depending on your preference for brightness.

How Long will it Last?
Fewer lights would be bright longer between changes.

"Can you mix sizes of lights, chip nano or pico?"

You can mix sizes yes. You can even run bulb or mega on this small coin cell holder.

"Can you mix colors?"

You can mix colors yes. You can't mix solid and flash though, the solids would flash along with the flashers. Solids would need a separate coin cell and holder.

"Can I run more than 4 lights?"

You can run more chip nano or pico than the suggested (4) it will not hurt anything. Just the LEDs will be a little less bright, and will need to change the battery a little more often.

If space is not an issue, our other 3 volt power sources can run many more lights: regular coin cell holder, AAA holder, AA holder, 3 volt wall adapter.

Related Items You May Need

Shrink Tube - Shrink Tube provides a nice solution for protecting the exposed wire connections.

Extra Kynar Wire - The same strong, flexible wire we use on this coin cell holder, and all of our bulb-style LEDs.

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Customer Reviews

Based on 37 reviews
Good size

Easy to mount because of a small form factor

Matthew V
Perfect lighting solution for my art project

Fast shipping, great pricing, easy to understand instructions, will definitely be ordering from Evan Designs again!

Tony Willard
I already give a review for this item, in the wrong submission and item before this review. Lol🙃

Great items, love your stuff much more affordable and better quality than Circutron.

3 Volt Coin Cell Holder

The 3 volt coin cell holder for battery LED lights was easy to attach to my two miniature wall sconces, and the tiny on/off switch, which I attached to my miniature room's wall, added the perfect realistic, big room effect.

William Ohrt
Bill's Review

Didn't think I'd find anything this compact!

Patricia Hamilton
Perfect for the small portable projects

One of these was included in a kit project and worked so well to provide lighting for a small project. The switch is so small and easily hidden.

937 Battery Holder

The battery holder with the on/off switch works well. I wish that Evan Design offered a battery holder with an on/off switch that was part of the battery holder so the whole thing was more compact.


Thank you Roger for taking the time to leave us a review. We do not attach the switch to the battery holder because it requires the battery to be accessible so it cannot be hidden inside or underneath the project. But what you can do is take a toothpick and tightly wind the wire around the toothpick. Remove the toothpick and you have a nice neat spring with your excess wire. We hope this helps, and thank you again for your suggestion


Excellent battery holder. It’s super tiny and well made. Also amazing service and fast shipping from Evan designs.

J Rousseau
3V battery snap holder with Switch

This is the perfect set up. Tuning two LED lights off one 3V battery neatly tucked in the back of my N scale Pullman car with the switch coming out the back door of the car for easy access. Works perfectly!!!

3V small cell holder with switch

Excellent works perfect

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