“This is a minor fork of Enif’s Flexing Battery Holder. It will produce a battery holder with an arbitrary number of cells in parallel and series. Thanks to Infinigrove for sorting out alternating symbols. Find the latest version of this at GitHub: https://github.com/txoof/flexbatt Either choose your battery size and number of cells through the customizer, or use this as an includable library in another project or directly from the .scad file. Wires can be passed through the ports in either end and wrapped around the small bars at either end of the battery holder. Route them and add a bit of solder for a solid joint. The built-in spring will help secure the battery. It is possible to load the batteries in with either the negative or positive terminals toward the “spring”. Wire your holder accordingly.”