18650 Carrying Tubes

[dbrock]

Does anyone have a source for robust and waterproof tubes for carrying individual spare 18650 batteries underground?

 

[Shapatti]

I think Biff (CustomDuo / Little Monkey / Rude Nora) used to sell plastic bottle preforms as a 'cave proof' carrier for single 18650 cells.

Monky House

Monkey House

www.littlemonkeycaving.co.uk

Had a quick look on his website and can't see them anymore, but you should be able to get them from a search online.
They are this kind of thing - Bottle Preforms on Etsy

From memory they were fairly robust as the plastic shell is quite thick, but not brittle, and the caps are waterproof like all plastic drink bottles.

 

[pwhole]

Tony Seddon at Starless River may have some, as I bought one from him once - large test-tube size.

 

[Ed]

Denko PakPAk if you can find then.

perfect sized for under or ooversuit pocket

Waterproof Sports Wallet - Denko PakPak (Assorted Colours) | eBay

Vibrant colours are These fantastic sports wallets, available in six. Supplied with pouch, belts and lanyard to be worn round waist, arm or neck. Comfortable and versatile.

www.ebay.co.uk

I've used on for years - also for car key when surfing

 

[Keris82]

Message the Rude Nora guy. I got some from him, they aren't on the website but I believe you can ask for them and he will send

 

[tobyk]

Universal containers for pathological specimens are perfect ie piss sample tubes. Waterproof, bash proof etc. Unused ones preferably

 

[zzzzzzed]

Waterproof Protective Battery Storage Case for 2x18650,4x16340

Only US$5.99, buy best Buy Waterproof Protective Battery Storage Case for 2x18650,4x16340 from Banggood with free shipping now. sale online store at wholesale price.

www.banggood.com

 

[Keris82]

Waterproof Protective Battery Storage Case for 2x18650,4x16340

Only US$5.99, buy best Buy Waterproof Protective Battery Storage Case for 2x18650,4x16340 from Banggood with free shipping now. sale online store at wholesale price.

www.banggood.com

I've got one of these but they are no good for caving unless it's in a watertight bag because it easily pops open and the batteries fall out

 

[sam1991]

I recently ordered a load of 18650 batteries from 18650.co.uk and they came in these storage tubes for free; they’re pretty bullet-proof and if you were to gaffa tape around the lid they’d certainly be waterproof enough to go in a case or Daren drum. They have a reasonable sized plug in the top; an o ring or similar would likely be perfect for keeping them dry!

 

[sam1991]

I’ve just checked the website. You can buy the tubes for 49p each!

 

[wormster]

How about these:

18650 Battery Caps

Place these vinyl caps on the ends of your 18650 battery to prevent short-circuits and other nasty problems. ✅ Buy now with fast shipping and our unique 100% satisfaction warranty!

www.planetofthevapes.com

One on each end sealed with tape *might* be waterproof, it’d more than likely be very difficult to short the cells if they were loose ina Darren drum