18650 and 21700 cases?

[Sphinx99]

I'm looking for some high quality cases for 18650 and 21700 cells. Ideally cases that hold 4 or 6 cells per case, are waterproof, and high quality manufacture e.g. good for carrying on a backpacking trip, while mountaineering, or very frequent air travel with these cells thrown in a carry-on. I see no shortage of ~$2 amazon/google specials but not sure how to feel about these and would like something robust. Pointers welcome!

 

[ChrisGarrett]

Just buy something like a Pelican 1060 with foam and cut to fit.

Otter Box makes similar waterproof cases that aren't too large.

Chris

 

[chillinn]

these are cute, but expensive for what they are, similar in dualy

20 slot waterproof

small waterproof 18650


Minahao 49 Round Ammo Storage Case

18650 fit a bit lose, intend to cut some soft foam to size to place on top to keep them snug in their slots. But with the case closed, they may shift a little, but they don't escape their slots, nor do the 18500 (as I learned Saturday carrying the case vertically in a backpack during an hour and a half of trekking in the woods).

I have looked long and hard for cases, and I've never seen any case specifically dedicated to fit 21700, but the Minahao would work better for 21700 than 18650.

 

[Labrador72]

I use Powerpax 18650 holders and put them either in a padded case (for travel) or a Sealine e-case (for hiking and mountain running) or locksak bags or equivalent (for multiday ultras).

Unfortunately they don't make 21700 holders yet. I sent them a mail a couple of times asking if they planned to but never got a reply.

I also tried these - build quality is good but batteries bounce in them so they are not good for runnig, might be ok for mountaineering.

18650 Battery Cases — Pine Wood Machining Corp

Premium, Water Resistant Battery Cases made in the USA!

www.pwmachining.com

 

[Labrador72]

Otter Box makes similar waterproof cases that aren't too large.

Unfortunately, they don't anymore but I think it's still relatively easy to find some of their cases for sale online.

 

[idleprocess]

Powerpax 18650 holders

I found the retention tabs on those to be harsh on the cell wrap.

 

[Labrador72]

Yes, it's true those tabs fit pretty tight but haven't had any problems after years of using them.
The only exception was an Eagtac 3400 18650 but it had a very thin wrap and it's been the only battery out of more than two dozens.

 

[ChrisGarrett]

Unfortunately, they don't anymore but I think it's still relatively easy to find some of their cases for sale online.

There are some on Ebay, but I don't see any with foam and they are few.

Pelican is what you should try.

I have two 1060s and on one, I just used a spare piece of foam and cut it to fit 3 lights and some cells. It works well for cheap.

Buy used and save.

Chris