Summary

Battery adapters for 18650 and 26650 to 2-D cells. I decided to get a little artisy and save some filament at the same time.
I have a lot of 18650's and my MagLight needed replacement batteries so......

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/d5VA5MzDcci

Print Settings

Printer:

HICTOP i3

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.25</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>

Post-Printing

The fit is loose around the batteries. I used a bit of solid 12 ga wire (55mm or so) bent 90*, dropped in the hole and bent flat. They should work either way, and a M3 threads into the hole if you need a nipple.

Battery Adapter