Spend over £60 and we will add a free head torch (RRP £24.90) to your order. Please note that his offer cannot be combined with other promotions or discounts.

Please note that all orders placed now will leave our warehouse on Tuesday 26th August 2025 due to the Summer Bank Holiday

Home Power Battery Storage Fenix Battery Case for 1 x 21700 Type Battery
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Fenix  |  SKU: F-CS-21-SINGLE

Fenix Battery Case for 1 x 21700 Type Battery

£2.94

This hard plastic storage case is designed for 21700 lithium-ion batteries.

It accommodates a single 21700 cell and is perfect for protecting your cells from damage and short circuit when not in use, as well as easily carrying a back up cell.

It features a rear hinge and secure closure clasp.

Care should be taken in rain or wet environments to ensure the batteries stay dry.

Technical Details

Battery Type: 21700
Case Dimensions: 80.6 x 31.20 x 25.2 mm
Weight: 14 grams
Colour: Translucent
Material: Hard plastic

Packaging and Contents

Battery case for 21700 type batteries x 1

Customer Reviews

Based on 1 review
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R
Rich
It fits!

After purchasing multiple 21700 cases on Amazon that didn’t fit, I am pleased to say this does fit! Nice well made box that closes securely.

Let customers speak for us

from 3590 reviews
This is how all online shopping should be!

I have a particular hate for torches where you have to press buttons 20 times just to get some light out of it! This makes it very difficult to pick a torch that fills all my other needs but also can be turned on (and off!) with a single button push!
The product descriptions are excellent (other vendors should think carefully about this point) and go into fine detail about how the torches are operated and how to select different modes that might be available.
On rare occasions where I might still have a query then being able to ask this directly and get informed answers is so refreshing and helpful.

I really wish all online purchases were like this.
Well done Stewart at Torch Direct!

PeteR
Torch Direct Limited
The best I have owned

Although I have a rechargeable head torch already that I also bought from Torchdirect and was it was suitable for what I needed at that time, I needed a more powerful torch and having owned an Led lenser before and found it utterly reliable I decided to buy a head torch of the same brand. It was delivered very quickly. I have found my new purchase to be really good. Although it is a bit heavier than my old head torch I soon got used to it and I am more than satisfied.

John M.
Ledlenser HF8R Core Rechargeable LED Head Torch
Nice fan

Fan is versatile and has good fan speeds very pleased with it

Brian
DiveBlues JetForce Portable Handheld Turbo Fan
Excellent Backup Battery

My Nebo torch takes an hour or two to fully charge so these batteries are great because they have their own charging port so you can still use the torch while these are charging via a USB c cable and then have them ready as a spare to use immediately if the battery in the torch runs out whilst you are using it.

David T.
NEBO 18650 USB-C Rechargeable 3200 mAh Li-ion Battery
Great piece of kit

I bought this torch as a gift. The recipient thinks it is a great piece of kit. Easy to charge, excellent broad and narrow beams. They think I spent a lot more than I actually did for such a great torch.

Pete S.
NightSearcher Explorer 1150 Rechargeable LED Torch
Above and beyond

There is a reason these guys are so highly rated, Im glad I decided to speak to them about what was apparently a "non fixable" LED Lenser torch. Everywhere else I tried, let me down and tried to sell me a new torch straight away, but I didn't want to give up so easily, so called these guys and I knew straight away I was speaking to the right people. They didn't try to sell me anything, they gave me great advice, they checked my torch, and at first they did say it might be a tricky fix but to let them look into it further, I thought this might be a polite brush off tbh as I had lost faith, but less than an hour later, Stewart in their team called me back and said he has sourced the part (Faith restored). I have since made several purchases from this company, all of which have been superb. Highly recommended and feels good to know i'm supporting a family business, they take exceptional care of you when you need anything, and I will always check out what's new in their store as they update it regularly. In a world that can sometimes feel like its just taking all the time you guys genuinely wanted to help me and that means a lot, thanks for everything Stewart and team.

Paul G.
Torch Direct Limited
Power & compact

This is a powerful torch with a concentrated beam. Plus it is small & rechargeable. You won't be disappointed....

Chris e.
Nitecore MH25 Pro Rechargeable LED Torch
Excellent Torch

Very quick delivery from Torch Direct.
The torch is super bright on the top setting and very good on the lower intensity settings. Great battery life - excellent for walking the dog at night.

MattW
Maglite ML150LRX Rechargeable LED Torch
Just perfect

Previous experience and checking out what is available now there are many keyring torches with a key fitting at the opposite end to the torch but not long enough to shine light on the keyhole and insert the key at the same time, therefore "Not fit for purpose" This one has a keyring already fitted and after fitting my keyring to this I have plenty of scope to shine the light on the keyhole and fit the key. Wonderful.

ANN A.
Core Lighting CLK15 LED Key Ring Torch

Happy buyer,quick delivery,quality product. I recomend.

Artur
Armytek 3500 mAh 18650 Lithium-ion Battery
Great product

Great seller highly recommended the torch is great quality and reasonable for the money

shaun h.
Tank007 UVE2 Ultraviolet Fluorescent Detection LED AAA Torch (365 nm)

Excellent battery , works perfectly.

L.M.
Xtar 21700 5000 mAh 3.6 V Lithium-ion Battery
Love this torch

This torch is very small and light, but packs quite a punch with the 500 lumens.

OIt is to replace my Fenix E15, it is lighter and overall smaller but has an extra 50 lumens

I cannot fault it in any way!

Keith
Fenix E03R V2.0 Rechargeable LED Key Ring Torch
UV Torch

This purchase was a replacement torch. The ordering process online was straight forward and delivery prompt. I was very pleased and highly recommend this Company.
Regards RE

Richard E.
Tank007 Ultraviolet Focusing LED Torch
Batteries are fine....

No problems with the batteries, performance is good ado what they say on the tin. Unfortunately the original P7 Signature wasn't and fried the new battery, the same as the one I had bought it to replace. Fortunately, Torch Direct preformed admirably as usual and just replaced the torch within a few days without any quibble. Wonderful service TD keep it up, I will be back again the next time I need a replacement item.

David
Ledlenser 4800 mAh 21700 Lithium-ion Rechargeable Battery