This is an addition to the Ultimate Modular Battery Holder by @CattusPrintu_1192884, who did an amazing job, available at the following url:
https://www.printables.com/model/580458-ultimate-modular-battery-holder-aaa-aa-cr2-cr14-dr

Please note I have no affiliation with KEKUCULL, these just happened to be the wireless packs I am using at the time that I bought my 3D printer and started designing. With that being said, these are the batteries I'm using:
https://www.amazon.com/gp/product/B0B1T31ZRV/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1