3AA to D Adapter

[lemlux]

Wayne:

As long as you have your own forum, perhaps you could give us updates on expected availability and pricing here.

I do recall seeing a post of yours that vaguely referred to May.

thanks.

edit:


Oops.

feel free to delete. I just noticed a 4/9 post to another thread on this.

[ElektroLumens]

[ QUOTE ]
lemlux said:
Wayne:

As long as you have your own forum, perhaps you could give us updates on expected availability and pricing here.

I do recall seeing a post of yours that vaguely referred to May.

thanks.

edit:


Oops.

feel free to delete. I just noticed a 4/9 post to another thread on this.

[/ QUOTE ]

Expected delivery date is mid May. I have to tell you I can harldy wait! /ubbthreads/images/graemlins/grin.gif This to me is the dream battery holder, that makes possible so many mods that I always wanted to do, but couldn't. Convert any 2D to 9V, or 7.2 with rechargables, convert the 3D to . . .

/ubbthreads/images/graemlins/grin.gif

Wayne



Wayne

[Rothrandir]

what about a 4aa to d? /ubbthreads/images/graemlins/grin.gif

i will certainly be purchasing a couple of 3aa to d, but if you get some 4aa to d, that would open up many amazing possibilities.

a project i am courrently working on requires 4aa to d. /ubbthreads/images/graemlins/grin.gif

[paulr]

That's been discussed at length. It's difficult to do 4AA with an adapter. It's a tight enough fit that it will work in some flashlights but not others. 3AA works a lot better with this kind of adapter. If you really want to get 4AA into that D space, you may be best off soldering together some tabbed cells and jamming them in with no holder (maybe wrap them with thin packing tape--electrical tape or heat shrink tubing is probably too thick).

[Rothrandir]

i figured that may be the case, but was hoping it would be possible...

at any rate, i have a decent design forming in my mind that should be adaquate.

[inverno]

You could try those translucent 4AA dorcy lights, they have a 4AA "D" size holder...for generously sized D lights.

[ledfanfromjuno]

There is another market for these battery adapters besides 5watt luxeon emitters. Thermal handheld cameras and thermal sniper scopes and other military equipment some sellable to the general public and some not, use D lithium batteries at 3.7 volts. This meant you had to use disposable lithium batteries. They don't make rechargeable lithium D cells with the appropriate protection circuitry. Also AA batteries recharge six times faster than D cells for the same amount of mah capacity. Now because of Elektrolumens 3AA to D adapters, these thermal cameras can be run off of cheap AA nimh batteries.

I plan on buying the adapters now. Then later when I can afford it, I'm going to buy this thermal camera. Consider it the ULTIMATE FLASHLIGHT:

http://www.flir.com/ground/products/MIRV2/index.htm/lang=EN/ln=c18

Excerpt from above link:
"A palm-sized miniature infrared viewer, the MIRV weighs less than 1.6 kg, runs for five hours on a single "D" cell battery, and is sealed and ruggedized to withstand the demanding rigors of field operations. Its long focal length optic provides detailed images at long range in all climactic conditions. Target thermal imagery is displayed on a high-resolution miniature liquid crystal display integrated into the MIRV and viewed through the unit's eyepiece. Developed per U.S. DOD specifications, it can be single-handedly operated with minimal fatigue."

[paulr]

Wow, I had no idea thermal infrared scopes had gotten so small. How much does that thing cost?

Note that the three NiMH AA's will probably have at best 1/4 of the capacity of a lithium D, so runtime will be limited. You may be better off with an external battery pack.

[ledfanfromjuno]

I'm happy you like the thermal camera I found. This rifle scope is also great but unfortunately, unlike the camera, it is not legal. The camera to will be banned eventually. The government is incrementally taking away more and more of what you can buy, silently, without warning or media coverage. Anyways here is the riflescope which is really great because by attaching over an existing dayscope there is no need to rezero the riflescope for night time use (refiring the rifle to get on target).

http://www.flir.com/ground/products/SnipIR//index.htm/ln=dp/lang=EN

Excerpt from link:
"The SnipIR is easily man-portable at just 4.5 pounds and is fully ruggedized to withstand the harshest environmental conditions. Mounted on top of and viewed through the weapon’s day scope, the SnipIR’s long-range performance and thermal sensitivity provides the ability to detect targets out to 1500 meters. Its cryogenically cooled imager is powered by a single “D” cell lithium battery for greater than four hours operation. During daylight hours, operators can fuse the visible light image from the day scope with the SnipIR’s thermal image."

Here is another great camera but not as good as the mirv.
http://www.flir.com/security/products/MilCAMXP//index.htm/ln=dp/lang=EN

Yes, there is a mismatch among D lithium battery specs. I don't have the details on these cameras and the website is vague. So I'm not sure of the voltage tolerance range of these camera units. Something can be worked out though with the nimh AA's and elektrolumens adapter and if necessary a dummy AA if 3.6 volts is too much. Maybe it'll only run one hour on 3AA's. But it only takes 100 minutes to charge 4AA nimh 2000 mah batteries in the maha c401fs charger and I can hook it up to compact portable but expensive 30 watt solar panels designed for the military backpack's and charge it in the field.

You should see the demo pictures on FLIR's website. These handheld cameras are as good as the stuff in the military jets and police helicopters.

All the work and training it took the American Indians to become good enough to find game to survive on in the wilderness in harsh primitive survival situations where failure in hunting meant death in winter, can be replaced now by this camera.

[ledfanfromjuno]

Almost forgot. I ran into another neat thermal gadget on the internet. The ghillie suit makers are now making ghillie suits that exchange heat from the body in specicial fabric folds. It cools your body heat so that you become invisible to the thermal cameras. The company doesn't want to sell it to civilians though. Only government and mafia and islamic terrorists can purchase these items. Illegal immigrants and petty thieves prohibitted. I hope red china and russia and mexico begin ripping off the design and mass producing them cheap.

[ElektroLumens]

Hmmm, I suppose there will be a lot of applications for these battery holders. Anywhere a 3 volt lithium battery is used, three rechargable AA batteries could be used in it's place. Thanks for the tip, never thought of that.

Thanks,
Wayne j

[FalconFX]

[ QUOTE ]
ElektroLumens said:
Hmmm, I suppose there will be a lot of applications for these battery holders. Anywhere a 3 volt lithium battery is used, three rechargable AA batteries could be used in it's place. Thanks for the tip, never thought of that.

Thanks,
Wayne j

[/ QUOTE ]

Wayne, these guys are going to sell like hotcakes. I hope you made waaaay more than enough, because that might not be enough...
/ubbthreads/images/graemlins/grin.gif

/ubbthreads/images/graemlins/thumbsup.gif

[paulr]

I just looked at the Tadiran web page for that lithium battery. The energy density of those things is amazing. They have up to 19 amp hours at 3.6 volts in a D sized cell. If that battery runs the scope for 5 hours, three 1900 mAH NiMH AA's will run it for half an hour. Not so great! And given what the scope itself is likely to cost, 20 bucks each for the lithium batteries doesn't seem like that big a problem. The odd thing is that type of lithium battery seems designed for very low drain applications (1000's of hours), and has far less energy when used at high drains. So I wonder why they chose it, or maybe I'm looking at the wrong type of cell.

http://www.tadiranbat.com/specs6/tl_5930.htm

[shankus]

Any news on the 3-to-d adaptor? It's mid April. Oooh!?

[x-ray]

[ QUOTE ]
shankus said:
Any news on the 3-to-d adaptor? It's mid April. Oooh!?

[/ QUOTE ]


[ QUOTE ]
Elektrolumens said (earlier in this thread):
Expected delivery date is mid May. I have to tell you I can harldy wait! This to me is the dream battery holder, that makes possible so many mods that I always wanted to do, but couldn't. Convert any 2D to 9V, or 7.2 with rechargables, convert the 3D to . .

[/ QUOTE ]

I have a few Mag's just crying out for these, lets hope the release date doesn't get put back any further.

Wayne stay away from that "Surefire - Product release & marketing" manual /ubbthreads/images/graemlins/tongue.gif /ubbthreads/images/graemlins/wink.gif ...... Just joking with you we know the delay is down to the factory, please don't /ubbthreads/images/graemlins/twak.gif me /ubbthreads/images/graemlins/smile.gif

[DHCrocks]

[ QUOTE ]
shankus said:
Any news on the 3-to-d adaptor? It's mid April. Oooh!?

[/ QUOTE ]

mmm...Wayne said a few posts up that it was going to be mid May. /ubbthreads/images/graemlins/icon23.gif

[bucken]

Hey Wayne,

Any idea what the weight difference might be... Three "3-to-D"'s (with AA's) versus three standard "D" cells?

[ElektroLumens]

[ QUOTE ]
bucken said:
Hey Wayne,

Any idea what the weight difference might be... Three "3-to-D"'s (with AA's) versus three standard "D" cells?

[/ QUOTE ]

Well, I have a scale, and can weigh them. Of course, it all depends on the type of battery used.

Wayne