partsguy
Riding a '38 Autocycle Deluxe
See post number 62 in this link for building the battery pack. This is not posted, but I created a plastic case for all of the batteries, with a lid, and soldered all the connections. I created the case for a neat look, and for safety so the wires don't arc on the rack.
https://thecabe.com/forum/threads/1955-blue-radiobike-restoration.109510/page-4
https://thecabe.com/forum/threads/1955-blue-radiobike-restoration.109510/page-4