Cut a small hole in your shorts next to the JST battery port.

Bring the male end of the JST extension cable through the hole from the back of the fabric to the front, then plug it into FLORA.

Route the extension cable up to the pocket, in which you should also cut a small hole.

You can now plug the battery pack in through the pocket of the shorts!
Tack down the extension cable on the back of the embroidery, using stitches or just a very few fibers on the fabric to anchor it with plain thread. Stitch along the entire cable, and you can optionally use this same thread to secure the holes you cut at either end with a few whip stitches.

We recommend powering this project with our 3xAAA holder.

Remove the battery for washing and turn the shorts inside out before washing by hand. Allow to dry thoroughly before plugging the battery back in.

For a smaller battery option, try our tiny lipo battery and micro lipo USB charger. Be sure to heed all safety warnings about lithium polymer batteries and do not use them unless you are comfortable with power supplies.


Remove the battery for washing and turn the shorts inside out before washing by hand. Allow to dry thoroughly before plugging the battery back in.

This guide was first published on May 08, 2013. It was last updated on May 08, 2013.

This page (Battery) was last updated on Nov 18, 2020.