AAA NIMH 12 volt box

thingiverse

A power pack designed to connect NIMH AAA batteries and produce 12 volts using ten batteries is being created. Although Lithium Ion batteries have a higher energy density, NIMH has several beneficial properties like being safer and not getting damaged by complete draining. The two parts should slide together with some friction and may require a slight sanding. I increased the clearance by 0.004" from when I printed as it was too tight for me. I also extended the length of the dividers to keep the batteries more straight. Parts include: Terminals: https://www.amazon.com/gp/product/B072379C1R/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=3dprinting456-20&creative=9325&linkCode=as2&creativeASIN=B072379C1R&linkId=8b49a41cf4e53761c3aaddc09ede232a Example of batteries that could be used: https://www.amazon.com/gp/product/B07L8FZZMT/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=3dprinting456-20&creative=9325&linkCode=as2&creativeASIN=B07L8FZZMT&linkId=e925c6fda898acadfe0a70bf23fc75dc DC connector: https://www.amazon.com/gp/product/B06Y4YXRMC/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=3dprinting456-20&creative=9325&linkCode=as2&creativeASIN=B06Y4YXRMC&linkId=1845c0a1fedd5d754eb1244d74b1a5ba Solar tabbing wire to connect terminals 28 awg or better wire to connect to DC connector Charger similar to what I used: https://www.amazon.com/gp/product/B07RW73G45/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=3dprinting456-20&creative=9325&linkCode=as2&creativeASIN=B07RW73G45&linkId=11b637676b85c0908c891a5796d3cde9 I have included Amazon links because these parts will ship quickly, but if you are willing to wait then you can get these parts for a lower price on eBay or AliExpress. I used a charger from a 12-volt NIMH rechargeable drill that I had around.