4x M3 x 6mm countersunk
4x Threaded Inserts M3 X D5.0 - https://www.aliexpress.com/item/4000232858343.html
IP2368 - https://www.aliexpress.com/w/wholesale-ip2368.html
BMS - https://www.aliexpress.com/item/32808335825.html (4S 40A Balance)
Optional heatsink - Max. 40mm x 20mm x 4mm
The author marked this model as their own original creation.