Thanks to PhilT4 for the great design, I just simplified it with a flat bottom and I included an optional 4x length version. I have printed it but I am too lazy to take photos right now.
Supports are needed
Makita_Battery_Holder_4x_v2.stl | 505.2KB | |
Makita_Battery_Holder_Single_v3.stl | 261.5KB |