Stackable Modular Battery Storage system with lid

Although there are many models available, I didn't find one quite the same as this. The Modular Battery Storage system works as follows:The starting point is a box and a lid. The dimensions are 143.5 mm * 143.5 mm * 59.8 mm.The boxes can be stacked on top of each other.Each box can have 4 inserts. The inserts can be put in corner and will stay there, so no need to print all 4 if you don't need them.. pick the ones that make sense for you. So far, I have created 6 inserts:AAA insert: inse