Lilypad Battery Connect
The LilyPad Battery Connect simply gives you a connection point for a battery or anything else you might want to plug in to your LilyPad system. It consists of a single 2-pin JST connector on a small LilyPad board with positive and negative terminals.
LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available. They're even washable!