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Sold/Expired Odd Mods Battery Adapters, Parts etc...

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:paypal: for one 6aa --> 2D Adapter
32,-- + 4,-- shipping = 36 USD

(transaction-code 64X48876G7708364B)

TX

Andreas
*AILL*
 
Sorry I didn't catch this sooner....

The Dual or Quad bore on the host would have to be ~37.5mm across to fit. I believe it is possible though.

I have been working on some side-by-side designs for mags, so far so good, I can't imagine why the design elements of the adapters I have going for that couldn't be adapted to an 18mm cell size. I'm not sure what demand there would be for them on a large scale, but I'd certainly consider a custom job.

-Eric

I have a dual bore 2.25D Mag that I've been needing a battery carrier for. Specifically, I need a 4S (2 wide x 2 long) 18650 carrier. Do you think you will make something like that?
 
I have a dual bore 2.25D Mag that I've been needing a battery carrier for. Specifically, I need a 4S (2 wide x 2 long) 18650 carrier. Do you think you will make something like that?

Might be possible...

Just to double check, your space constraints for the total cells+adapter is ~135mm length at normal spring compression....

2x18650=~130mm length...

About the bare minimum space requirement for end caps for that design type is ~15-20mm. Which means that an adapter for 2x18650 length would be very difficult to make any shorter than around 150mm total length with cells loaded. Basically, a 2.5D mag...

If you can give me a few weeks to wrap up some other projects and get some inventory built up on my normal product line I would be more than happy to give it a try though and see if I can shrink down the length of the design there a bit. (I have some ideas already going through my head).

-Eric
 
Might be possible...

Just to double check, your space constraints for the total cells+adapter is ~135mm length at normal spring compression....

2x18650=~130mm length...

About the bare minimum space requirement for end caps for that design type is ~15-20mm. Which means that an adapter for 2x18650 length would be very difficult to make any shorter than around 150mm total length with cells loaded. Basically, a 2.5D mag...

If you can give me a few weeks to wrap up some other projects and get some inventory built up on my normal product line I would be more than happy to give it a try though and see if I can shrink down the length of the design there a bit. (I have some ideas already going through my head).

-Eric

I've just measured... if I trim the tail cap and use a recessed spring, and maybe shave a bit of plastic off of the bottom of the mag switch, I can accommodate 150mm carrier with no crushing. Can 150mm 2x2x18650 seiral be done?

My only other option is a shrinkwrapped 3x4x14500 battery pack (my dual bore 2.25D is also quad bored), and with Lux's sales thread closed, I wouldn't know where to get one made from 12s LSD NiMH cells or 6s2p LiFePO4 14500s.
 
I've just measured... if I trim the tail cap and use a recessed spring, and maybe shave a bit of plastic off of the bottom of the mag switch, I can accommodate 150mm carrier with no crushing. Can 150mm 2x2x18650 seiral be done?

I'm almost 100% sure I can do it within 150mm or less now that I have thought about it some more.

-Eric
 
Are we constrained to "normal springs"?

The adapter designs are based on the concept of using the stock mag spring, provided the diameter of the mating part of the spring is roughly the same, (clearance in middle for the threaded rod/nut) then alternative springs often work just fine. The main concern in design changing for the spring is whether it will interfere with the nut that tightens up and loosens the adapter.

-Eric
 
I read through the thread but could have missed it. Is there any way you can manufacture a 8 AA battery carrier for the Fenix TK40 to use 14500 rechargeable. I thing peak voltage for the TK40 is about 6.8 so my unenlightened guess thinks it's possible. I would be very interested in a couple of those along with a couple of spare clones of the Fenix carrier.

Regards,

Viper715
 
Hello Viper715!

I haven't even seen a picture of the TK40 battery pack and have no idea what the layout or voltage requirements would be. Based on reading the specs of the light, it sounds like it's a 4S2P pack, which would run in the ~4.8-6V input range depending on the cell type chosen (NIMH-alkaline-lithium primary AA cells). My concern would be that if the pack were wired up all in parallel with 14500s, then the input voltage averaging around 3.7V might be way too low to run the light optimally, and with it wired 2S4P, the input voltage would likely exceed the maximum input...

I wouldn't want to make that pack based on any assumptions, so we would have to know with 100% confidence that the driver could handle up to 8.4V without ill effect... OR that the light will run with on ~3.7V with good output. My gut tells me that it uses a buck regulator and needs that extra ~1V over the Vf of the LED to be in regulation.

That said, I think it's important to point out, that a 14500 isn't a major gain over just using NIMH...

8 eneloops would be about 19 WH
8 highest capacity NIMH available would be about 24 Watt-Hours
8 14500 LiCo cells would be about 21WH
6 17500 LiCo cell would be about 25 WH

If you can shoot some pictures of the stock pack, including the positive and negative contacts, tailcap spring etc, and take some measurements of the overall pack length, and inside body diameter, then that would help give me an idea of the potential for an after-market adapter design... I'm wondering if maybe there isn't room for 6 17500s in there... If it could handle 8.4V, then 6 17500s would actually be preferable over 8 14500s as you would have less cells to deal with and even more stored energy. I guess it would be a nice goal to shoot for for the advantages of li-ion, but this isn't going to break any incredible ground on runtime or anything.

-Eric
 
I'm thinking I may need a custom adapter. 3 x 14670 (series) with an overall length of about 76-77mm. Can you squeeze one short enough maybe?

I'm still contemplating a 15 or 18 AA series for a 5 or 6 D Mag too provided the planned socket actually goes into production. (and AW doesn't make 14500 IMR cells.)
 
I'm thinking I may need a custom adapter. 3 x 14670 (series) with an overall length of about 76-77mm. Can you squeeze one short enough maybe?

Assuming a Mag compatible build, I need ~14mm +/-2mm added to total cell length bare minimum for an adapter based on the 3AA adapter design. I *Might* be able to eek out that extra few mm and get it down to 77mm with some creative material removal 🙂....

I'll try to get back to you on this one as I think I can make it happen 🙂
 
:paypal: for 3D to 9AA with US shipping!

im still loving your 2D adapter by the way...

:thumbsup:
 
Eric,

I'll be sending you a payment for 1 9AA>3D adapters shortly via paypal.

$34 + $3 (shipping) = $37.

Thanks,
Dennis
 
😀
Got my 9AA-->3D adapter, powering my new Elektrolumens MCE dropin III with it and it is AWESOME. Thank you for the adapter. It is superb!

Lummox
 
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