I made a battery holder for an AAA battery with a twist

I carry both a 4Sevens Preon ReVO and a ThruNite T10 as part of my EDC kit. Until recently I never carried a spare AAA battery. I decided to make a battery carrier with a twist: it doubles as an adapter to allow me to use AAA batteries in a light that takes one AA, like my T10 does. The cap that screws on to secure the AAA battery screws onto the back side to lengthen it to make it the same length as an AA battery.

Grr, I keep forgetting that UBB code doesn't work here.

What do you folks think?

Brilliant work, as well as a clever idea.

Very clever indeed. And industrious too. Nice work.

When I see stuff like this, I wish that I had a lathe ( and the skill to use it )
Love a bit of knurling!

Great stuff. Could maybe add a thread protector with opening at end that swaps places with the cap?

I'll mow your lawn for a Month for one of those

Vert nice work, wish I had that kind of time, talnet, and equipment. But you have me curious why you would carry a big adapter plus the AAA battery for a spare, instead of just carrying a spare AA? call me anal...

That would sort of defeat the purpose, wouldn't it?

Sorry, I don't have a lawn to mow. I had it paved over. Then again, if I had a lawn I wouldn't have time to do flashlight mods.

Good question. I carry the spares in a pocket along with tools, keys, etc. Things that could potentially damage my Duraloops and Eneloops. If I carried alkaline primaries then it wouldn't be a big deal. That reminds me, I need a case for the spare AA cells that I carry, too. This time, it'll be made from acrylic.

Thanks for the compliments, folks!

Wouldn't the metal short certain lights? They would never turn off...no?

Great idea tho! Use that "prototype" to make a mostly plastic one and sell them!

Nice mod & sweet idea! 2 thumbs up !

If the inside of the light is bare metal and it uses a tail clicky then, yes, it would bypass the switch. With a twisty or anodized host with a clicky that won't be a problem until you wear through the anodizing.

Well, not as I envisioned it. Open ended cap on the bottom and threads are protected while battery is stowed. Swap caps and the length is increased and the battery held in place by the open ended cap (shoulder would obviously need to be lower than the + tip).

Perhaps it's not doable, but the goal wasn't to defeat the purpose . .

Okay, I see now. Yes, it can be done, but, I'd rather not have two caps to unscrew and fumble with.

Nice work.

Pretty cool, I like it. Basically a carrier and a adapter in one.

Kinda reminds me of the quick change battery magazines by Olight.

http://www.wiseguygear.com/olight-m20-magazine.html

Very nice work!