The file 'XT60 Mini Battery Tester 3D Printer Model' is (STL) file type, size is 72.6KB.
for assembly you need:
1x mini digital voltmeter with 22.6x14mm screen. for example https://aliexpress.ru/item/4000131324446.html
1x xt60 male plug
bottom.STL | 183.3KB | |
up.STL | 155.1KB |