







🔋 Power up your adventure with sleek, secure battery storage!
The Slimline 21700 Battery Case is a compact, durable TPU organizer designed to securely hold and protect two 21700 batteries each. Featuring a snap-on cap with a micro-bevel lip and a soft yet impact-resistant material, it prevents terminal damage and keeps batteries organized—perfect for travel, outdoor activities, and everyday carry. Sold as a 2-pack, it fits both protected and unprotected batteries up to 78mm in length.
| ASIN | B09XRBR991 |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.7 4.7 out of 5 stars (215) |
| Date First Available | April 12, 2022 |
| Item Weight | 2.46 ounces |
| Manufacturer | WLG Creations |
| Package Dimensions | 3.54 x 2.28 x 2.2 inches |
| Size | Holds 2 Batteries |
| Special Features | snap on cap |
S**W
These are 3D printed. They are sturdy and have a foam insert to keep the batteries from moving.
I was surprised to see that these battery cases are 3D printed. They have a foam cushion in the top that keeps the battery from moving inside of the case. All of my 21700 batteries fit, even ones with built-in USB-C charging that are a few mm longer than a standard 21700. They are rather expensive, but they are shipped from a third-party seller, so the shipping is included in the price. I would prefer if the shipping were added separately if ordering several cases. It is a good product and is exactly what I was looking for, which is a 21700 battery case that holds one battery.
R**K
Great value
Very high quality. Fits like a glove.
L**B
GREAT!
These are great for storing and carrying in my pocket. Good quality & it meets my needs. Safety comes first with these batteries. and this case offers that protection.
N**L
Bit pricey but a better option than most other generic cases.
First off it's made in Canada, Nice! The material is a soft plastic but not flimsy or creaky, theres a foam inside to cushion the battery. Why I purchased it, I needed a case to hold the batteries individually and these are big enough to fit the slightly larger 21700 battery with USB-C charging, an example the Nitecore NL2150RX.
A**Y
Perfect for my 21700s
Perfect, better than expected. They have little bit of foam in the lid which is not shown in the pictures but I really appreciate.
T**R
Good Quality, & Great fit!
These battery cases seem to be of good quality. The 21700 batteries fit in them perfectly and the lid stays on tight.
M**.
Works Consistently Well
Nice quality. Much better than the thinner plastic ones I had
B**B
Well made
Really safe compartment. Top snaps into place, yet not to hard to open
J**K
Great quality
T**H
It works perfectly as I had a battery heat up in my purse
A**I
Couldn’t fit 2 18650 batteries. I don’t recommend it
F**O
Right size for 21700 batteries.
P**L
Bought these for my Fenix 21700 batteries. Fit perfectly. Great way to store your batteries or keep them safe whilst travelling. Very well made. Now I’m going to buy them for all my other Fenix battery types. Thank you for making these!! :)
Trustpilot
2 weeks ago
4 days ago