3D Printed Battery Adapters

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xxo
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3D Printed Battery Adapters

These adapters are 3D printed in PETG or Nylon filament (not the more common PLA which is not as resistant to heat and solvents) with solid brass and stainless hardware where needed.

Adapters with * have built in mechanical reverse polarity protection and require a button top or a raised positive contact. Protected cells are recommended.

*Edit:

Most of the adapters have been sold elsewhere, I still have a few if you are interested please PM me for prices and details.*

Thanks!

https://i.imgur.com/IGHr6iO.jpg

14500 to 18650 adapter.

https://i.imgur.com/ebyv84y.jpg

18650 to 3C (red) and 3D to 3C (blue) adapters.

https://i.imgur.com/mG39FB7.jpg

2C to 2D adapter.

Edited by: xxo on 08/05/2020 - 19:15
f0xx
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Hey, these look nice! I don’t need one myself, but it looks like good work to me.

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xxo
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Thanks Much F0xx! I appreciate your help and kind words.

This one is the CR123A/16340 to 18650 adapter.

xxo
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This is the 18650 to 2C adapter:

DavidEF
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Nice!

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raccoon city
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Wow!

Those are pretty cool.  :THUMBS-UP:

amishbill
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THAT is a very cool idea.

DIY LT1 battery wrap image. "PDF on Google Drive":https://drive.google.com/open?id=1IHIEOi1NXu868IYNCzIM7D2Ulpxchmww

Fresh Sanyo NCR18650GAs already wrapped "for sale HERE":http://budgetlightforum.com/node/69120 if you like.

xxo
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Thanks everyone!

I like C and D cell lights but I don’t like using alkalines and I like to have lights that can run on different “fuels”. The 3D printed adapters came out pretty nice, which is why I an offering them here.

DavidEF
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xxo wrote:
Thanks everyone!

I like C and D cell lights but I don’t like using alkalines and I like to have lights that can run on different “fuels”. The 3D printed adapters came out pretty nice, which is why I an offering them here.


Since Mag-Lite uses very chunky springs for the tail, I’d prefer the 18650 be in the middle of the adapter in this case, if possible. Could you make one that way? [Note: I’m not ready to buy right now, so don’t do it just for me.]

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xxo
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DavidEF wrote:
xxo wrote:
Thanks everyone!

I like C and D cell lights but I don’t like using alkalines and I like to have lights that can run on different “fuels”. The 3D printed adapters came out pretty nice, which is why I an offering them here.


Since Mag-Lite uses very chunky springs for the tail, I’d prefer the 18650 be in the middle of the adapter in this case, if possible. Could you make one that way? [Note: I’m not ready to buy right now, so don’t do it just for me.]

That’s kinda what I did for the D cell lights by using two adapters, one to change D cell to C cell and the other a C cell to 18650. There is a washer on the base of the D cell to C cell adapters that mates with unmodified Mag D cell springs so that there is no need for a spring mod.

I find that the smaller springs on C cell Mags work fine with 18650’s and even smaller cells.

xxo
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I am working on a 21700 to 2C adapter. 21700’s maybe the ultimate “fuel” for a 2C light in terms of run time – I don’t know of anything with more Watt hours that will fit in a unmodified 2C tube.

Pete7874
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Have you tried printing a 3C to 2× 18650 adapter for Defiant 3C light? The two 18650 cells would be connected in parallel to extend run-time. My Defiant 3C eats through a single NCR18650B cell very quickly.

xxo
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Pete7874 wrote:
Have you tried printing a 3C to 2× 18650 adapter for Defiant 3C light? The two 18650 cells would be connected in parallel to extend run-time. My Defiant 3C eats through a single NCR18650B cell very quickly.

I haven’t done a 2 18650 cell adapter as of yet, with 2 protected cells there is only about 10 mm left to work with to fit everything in.

Hoosh
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PM sent…

xxo
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2 D cell to 26650 adapter that I have been working on:

xxo
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I have sold most of these elsewhere and only have a few adapters left. Due to lack of access to a 3D printer during virus shut down, I will not be printing more for a while.

One of the last ones I completed is a 26650 to 3D cell adapter:

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No
6D to 2×18650 adaptor? Just kidding Smile

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xxo
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If I ever get a 6D ML300, I might come up with something to run a couple 26650 specifically for a 6D but 2 of the 3D to 26650 adapters would work just as well.

xxo
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I am starting to print some of these again on a limited basis.

old4570
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OOoooh – Aaaah ! Yeah !

I was wondering what to do with my 3D Printer . One of these days I will have to print a flashlight .

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xxo wrote:
2 D cell to 26650 adapter that I have been working on:

!{width:66%}https://i.imgur.com/u71tvyU.jpg!

WOW! This is super cool! I have one of these with the original color interchangeable lenses in the tail cap. Awesome cell adaptor!

Doug S.

xxo
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old4570 wrote:
OOoooh – Aaaah ! Yeah ! I was wondering what to do with my 3D Printer . One of these days I will have to print a flashlight .

That would be cool!

xxo
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Majoroverkill wrote:
xxo wrote:
2 D cell to 26650 adapter that I have been working on:

!{width:66%}https://i.imgur.com/u71tvyU.jpg!

WOW! This is super cool! I have one of these with the original color interchangeable lenses in the tail cap. Awesome cell adaptor!

Some of my first attempts at 3D printed adapters were intended for the old Fulton moonbeam running a Nite Ize LED drop-in.

xxo
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I am thinking of making some adapters for moding incan 3 D cell Mags that would run them on two protected 26650’s without any need to do a spring mod. Does anyone here still mod Mags? I am trying to gage interest.

Thanks.

xxo
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Maglite lantern? Mag doesn’t make one, so I 3D printed a base and a defuser to turn a ML50 into a portable lamp – should be just the thing for camping trips, power outages or anytime you need some extra light around the house or as go anywhere work light.

I set the modes to group 1 for easy access to all 3 output levels. High is really nice for lighting up a good sized room and eco mode is great for providing enough light not to walk into the coffee table or trip over the dog while running for days on end. Medium mode (I think Mag calls it low) is what I would probably use most of the time because it gives a excellent balance of light output and run time. If you prefer the ceiling bounce when inside, the base will keep your Mag pointed in the right direction – straight up.

The lantern base/defuser should come in handy on the road too – you can set it down on strobe as a warning light/flare or use it for some extra light when changing a tire and the defuser can even be used as a traffic wand.

Of course the defuser and base stand snap off anytime that you need a flashlight instead of a lantern.

The base and defuser also snap together neatly for storage and transport (there’s even a little storage space inside the defuser when snapped to the base).

I always liked lanterns, but this one has quickly become my favorite.

94Z28
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Cool idea; I have made some of these myself but in a more primitive way. I have one I started to design for the maglite because those huge 32650 or whatever cells are expensive and rare to find. I can make these on my printer if you ever need shoot me a PM to help you print them!

xxo
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Thanks for the kind offer, it is greatly appreciated but I have 3D printer access at the moment.

If there is anything that I might be able to help you with you adapters, please let me know.

94Z28
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Same to you! I have been making the diffusers as well for a bunch of my lights. They work great for anyone wondering.

I think the maglite mod to lithiums are a great idea. I’m sure it would sell here and on other platforms.

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I have a 9x AA zoomie, made by “Rayz” (hardware store purchase 7 years ago.) is there an adapter that could be made for the 9xAA, perhaps 18650 or 26650?

It is 3s3p I believe. The 9xAA tube is 3 sets of 3 AA’s stacked on each other. So same diameter of a 3xAA plastic holder, just 3 times as long. I can send pictures and exact measurements If someone is able to help.

Thanks!

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94Z28 wrote:
Same to you! I have been making the diffusers as well for a bunch of my lights. They work great for anyone wondering.

I think the maglite mod to lithiums are a great idea. I’m sure it would sell here and on other platforms.

I still make and sell a few of these from time to time, but interest is limited, sometimes it seems that I make more prototypes than anything.

xxo
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Artiet59 wrote:
I have a 9x AA zoomie, made by “Rayz” (hardware store purchase 7 years ago.) is there an adapter that could be made for the 9xAA, perhaps 18650 or 26650?

It is 3s3p I believe. The 9xAA tube is 3 sets of 3 AA’s stacked on each other. So same diameter of a 3xAA plastic holder, just 3 times as long. I can send pictures and exact measurements If someone is able to help.

Thanks!

Post the pics/dimensions if you have them – it might be doable if the Voltage is right to run on a single Li-ion. Have you run it extensively on NiMH’s? If so, it should work with a single Li-ion if it is 3S3P (some lights designed for alkalines will overheat running NiMH’s and Li-ions due to the lower IR). Post the pics/dimensions if you have them – it might be doable if the Voltage is right to run on a single Li-ion. Have you run it extensively on NiMH’s? If so, it should work with a single Li-ion if it is 3S3P (some lights designed for alkalines will overheat running NiMH’s due to the lower IR).