Modified existing designs of 18650 holders. This ones are provided as 1,2,3,4,5 or 6 slot versions.
The contacts in the holder are 5x5mm spacer bolts with M3 thread. Material is nickel plated brass.
Eg.
https://www.elfa.se/en/spacer-bolt-mm-mm-bourqui-jean-99130-50050-dsm3050x5-di/p/14801217?q=*&pos=2&origPos=6&origPageSize=10&track=true
-OR-
https://www.newark.com/ettinger/05-13-052/standoff-hex-m-f-brass-5mm-m3/dp/58Y7671
To connect cables I used ring terminals.
Eg.
https://www.distrelec.biz/en/non-insulated-ring-terminal-mm-mm-pack-of-100-pieces-vogt-3502a/p/14820941?queryFromSuggest=true
-OR-
https://www.newark.com/jst-japan-solderless-terminals/0-5-3/terminal-ring-tongue-m3-22awg/dp/05AC0492?ost=2677713&krypto=VzLrmo4CupZckxSrzyYNZ3Ecl%2BUwizqS%2FKkEpOrDYO8O%2FUju%2Fzc2q2N5IndSyDg3EhBEUMSAER92CHq9%2FwPNhNUlbLwTeY0NOjluYUFVIiihFUMnaukwXt%2Biq1z0JMh1ZGZqna3BwDeUJJ0E%2FMBOBKx7W2R4CG2HqDRSIjJJCUc%3D&ddkey=https%3ASearch
| 10_slot_18650cell_holder.STL | 2.3MB | |
| 10_slot_18650cell_holder_aligned.STL | 12.4MB | |
| 7_slot_18650cell_holder.STL | 1.6MB | |
| 7_slot_18650cell_holder_aligned.STL | 8.6MB | |
| 8_slot_18650cell_holder.STL | 1.9MB | |
| 8_slot_18650cell_holder_aligned.STL | 9.6MB | |
| 9_slot_18650cell_holder.STL | 2.1MB | |
| 9_slot_18650cell_holder_aligned.STL | 11.1MB | |
| slot_18650cell_holder.STL | 1.2MB | |
| slot_18650cell_holder_aligned.STL | 7.5MB |
