Bottom with option for charger Pack

Hi Y'all. So, I saw one guy had drilled out the bottom of the Fusion Core here: https://www.thingiverse.com/thing:5244590/remixes . I had an idea though. Its definitely not perfect, but now, you have a sort of guide to drill into it, and use this charger: https://www.amazon.com/Anker-PowerCore-Ultra-Compact-High-Speed-Technology/dp/B01CU1EC6Y?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&smid=A294P4X9EWVXLJ&th=1 . Now, I haven't tested it yet, so Ill probably be updating from time to time with modifications on making it better. Full Credit to https://www.thingiverse.com/rmmstnr for making this, I just wanted to have mine also be a charger so I made this.