This product is very useful board for adding 20mm battery (For example CR2032) when you want to add battery to your LilyPad project that is done by you.
This product which is made for wearable product technology has 4 connection points for sewing it to your project. Also it has 2 negative and 2 positive ends. As you can see below, you can establish a connection.
Documents:
- Click here for reviewing the schematic of the product.
- Click here for reviewing Github files of the product.