LilyPad Coin Cell Battery Holder - 20mm

If you're looking for a simple way to add a battery to your LilyPad project, the LilyPad Coin Cell Battery Holder might do the trick. It's a simple board which holds a 20mm coin cell battery (such as a CR2032) and gives you 4 connection points (two positive and two negative) for sewing into your project.

Note: The LilyPad Coin Cell Battery Holder is a design conceived by Felicia Williams of Boulder, Colorado. Also, a portion of this sale is given back to Dr. Leah Buechley for continued development and education of e-textiles.


LilyPad Coin Cell Battery Holder - 20mm Product Help and Resources

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.
See all skill levels

Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • nyukin / about 11 years ago / 1

    I like this 4 legged coin battery connector better than others. Do you sell the connector itself, know a part number for a distributor, or have a datasheet? Also if there's a page that features where to get parts that are in the SFE Eagle library but not for sale on Sparkfun that would work! Thanks.

    • Take a look at RobertC's comment above, with a link to purchase just the connector. Unfortunately, we do not sell the connector by itself. As far as the Eagle files go, we'll get those posted as soon as we can. Generally, we don't post where we purchase production parts because we often change suppliers-it would be a nightmare attempting to keep such a list up-to-date. Generally DigiKey is a good place to start checking if you are looking for a specific part.

  • mkroll / about 12 years ago / 1

    Where can I get the battery clip which is used in this Battery Holder? Is it available through Digikey? A partnumber would be nice. Thank you.

  • Member #300504 / about 12 years ago / 1

    How many LEDs or pins with it support on the lilypad? I had trouble on my last project using this as the power supply. Thanks.

    • Member #319770 / about 12 years ago / 1

      I would also like to know how many LEDs it can support. Also, as an example, could I sew a white LED from the first + and - and then a red from the other + and -? What I really want to do is something like sew a red LED to the battery and then another red LED to the first one (with a button of course). Thanks!

Customer Reviews

No reviews yet.