Cage : 5VKB6
We have a limited overrun of Delrin® Battery Lockers (Waterproof). The battery locker fits its designated battery perfectly. Brand new, never used overrun from government contract. Possible uses include: geo-caching, pet identification, emergency cash stash, water purification tablets, pill storage.
AAA Battery Locker:
AA Battery Locker:
CR123 Battery Locker:
18650 Battery Locker:
It comes up a little short however. It's just slightly short, the diameter is fine, but slightly bigger would be helpful. (just slightly) For example. A UCO lifeboat match container is huge, if you are trying to travel light. This container would make an excellent substitute, however, it is too short for lifeboat matches, and just slightly small to include the necessary striker(s). I realize that you can't accommodate every conceivable use, and this is meant for a battery, but a slightly bigger variant to accommodate the lifeboat matches in a smaller package would be a great addition.
Excellent fit for my 14500 protected cell! Of course fits AA wonderful. Great quality.
I've been wanting to carry a spare battery for my Peak, El Capitan, but the thought of carrying a loose lithium primary in my pocket was unsettling. Now I can!
Plus side down is a perfect silent fit, plus side up there's the tiniest bit of rattle, solved by a thin piece of closed cell foam.
Excellent fit, nearly indestructible, if you need to carry a single spare battery this is the only way to go!
Great item for carrying spare battery attached to key ring. Works fine.