Hey Makers,
this is a remix of a brilliant design of 18650 Puzzle Box but for 21700 cell batteries. It is compatible with the original so you can combine a 21700 box with a 18650 box. It is based on the original design, however, enlarged for 21700 cells but the locks are the same as the original design.

If you would like to support my designs to give me a small tip, click on this link. PayPal donate button.
Or You can send me a small tip ₿ Bitcoin to the following address: bc1qeqhefz33msdxs7hq69g72aspe9q5rlm2jxks04

Doesn't Matter

No

0,2

no