This specially designed e-textiles coin cell holder from Kitronik has large connection points for the conductive thread. These are clearly marked to show the battery polarity. The unit also has a small power switch so that you can turn the power on and off. It uses a very thin PCB material to keep its size to a minimum. This allows it to be easily incorporated into your own e-textiles designs.
This product is designed and manufactured in the UK by Kitronik.