Inline 6V CR927 Battery Holder for Jewelry/Bracelets/LEDS

thingiverse

This is a compact battery holder specifically designed to be embedded within a bracelet or jewelry, initially created to power LED fairy lights on a wristband. Secure the cover using #2 screws. Next, incorporate AA Spring Contact Plates, readily available at discounted prices on eBay and Aliexpress. Cut the plate to size and then trim the springs in half. Before inserting the contact plate, solder any desired connections - note that a counterbore will keep the spring in place while preventing the plate from escaping, although it does make removal more challenging. On the underside of the holder, there's a slot for inserting a piece of paper or plastic to prevent battery contact.