Coin Cell Battery Holder - 20mm (Sewable)

This is a coin cell holder for the common CR2032 type battery. The holder has a neat pop-in, pop-out feature that makes changing the battery easy. The feet of the holder have a small hole that allow it to be sewn without modification.

Coin Cell Battery Holder - 20mm (Sewable) Product Help and Resources

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Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.


Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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Looking for answers to technical questions?

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  • hypatia dot ca / about 14 years ago / 2

    These are honestly the nicest coin-cell holders I've ever used. I replaced the holder on the back of my 2010 DefCon badge with one of these - pic here. The original had snapped off from the force of removing the battery; these require barely any force to get the battery out.

  • neg / about 9 years ago / 1

    seriously why is there not an eagle part for this

  • Member #337772 / about 11 years ago / 1

    Is this component in the SparkFun EagleCad library? I can't find it under Battery Holders :-(

  • Isdale / about 12 years ago / 1

    Holes in these are very small, requiring a fairly small (#12) needle. The eye of these is small and pretty much requires using a needle threader. (find bulk buys on ebay. Batteries can be had on ebay cheap too.)

  • jamesotron / about 13 years ago / 1

    I can't seem to find this part in the SparkFun eagle library. Can anyone point it out?

  • Member #152799 / about 13 years ago / 1

    Can this holder accept 2 cells?

  • Be prepared to drill out the holes on this. They are smaller than the holes on the other elements (LEDS, Switches) that I have tried so far, which means that sewing needles that work for everything else will be too large for this. Also, the two mounting pads are not really sufficient for attaching this to clothes in any exposed way; you'll need to think about placement and protection from snagging. Works great as far as battery replacement.

  • Kevin / about 16 years ago / 1

    Is there a version of this holder that would be compatible with the rechargeable Li coin cell on your site (size: CR2450)

    • Possibly, but we can't find one at the moment. It's actually kind of difficult to find SMD holders that have the hole in the tab (designed to aid reflow in real life). The CR2450 is also a more unique size making it harder to find.

  • Wayne / about 16 years ago / 1

    It would be useful to have a LilyPad-type slide switch to go with this. Would also be useful as an input mode switch.

Customer Reviews

4.3 out of 5

Based on 4 ratings:

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2 of 2 found this helpful:

Good starting point for wearable tech experimentation

One of the first challenges of trying to learn how to integrate electronics with textiles is how to provide power to the electronics system. This little product is inexpensive yet practical for this kind of application, so I plan to include it as a component of instructional kits for "wearable tech" classes in the future.

3 of 3 found this helpful:

Economical way to get started with e-textiles

I sponsor a STEM related craft club at my elementary school. Our culminating project was to make a simple LED bracelet with snaps as the on/off switch. These were 1/4 the price of the Lilypad coin cell battery holder with the actual switch. They worked just fine. You will need to use a size 7 embroidery needle because the holes on either end of the battery holder used to secure the your fabric are tiny. The end that looks like an "E" is the positive.

Great with tiny holes

You probably have no control over the size of those holes I'm guessing! Otherwise this little battery holder is great.

works great

Been using these in elementary school for a textiles project (led bracelet, probably similar to what another reviewer uses them for).