Sometimes you only need a small energy source for you wearable project. This tutorial will teach how to make a crochet battery holder for 3v cell coin battery. It was prepared by Tineke Van Hilten during her internship at POPKALAB. We tried to make it as visual as possible. The crochet battery holder was made for the e-textile swatch exchange book for the e-textile summer camp 2015. You can find the entire Tutorial in here.