best 18650 carrier
"I use mine for caving and it is great!"












Keep your spare 18650s safe and secure with the MecArmy B18 Battery Case! This durable polycarbonate container is able to house up to six 18650 Lithium Ion batteries, making them safe and easy to store or carry with you wherever you go! The B18's lid screws on tightly and is padded on the inside to provide extra cushion for the cells. The battery case is incredibly impact resistant and is completely waterproof when sealed, allowing you to bring your spare power sources just about anywhere safely!
| Brand | MecArmy |
| SKU | MEC-ARMY-B18 |
| MPN | B18 |
| UPC | 6925961901675 |
| Color | Black |
| Activity | Batteries |
| Material | Plastic |
| Material | Plastic |
| Exterior Height | 3.23 in (82 mm) |
| Exterior Diameter | 2.79 in (71 mm) |
| Length | 3.2 in |
| Width | 2.61 in |
| Height | 2.61 in |
| Shipping Weight | 0.2 lb |
| Warranty |
MecArmy 2 Year Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Overall rating: 4.857143 / 5 from 21 reviews.
Review topics: ["quality","works","case","hold","batteries","foam","seal","price","buy"].
"I use mine for caving and it is great!"
"This is the best way to store your individual 18650 batteries. No more worries about something shorting the contacts together. And being able to store six cells in it, makes it all worth it."
"I've been meaning to purchase one of these as soon as I had a decent amount of 18650's. I shouldn't have waited as these cases are awesome. Holds 6 18650's securely & safely. Will protect them from a decent drop or water. Tough construction, sweet design, & good tight seal. You can toss one of these in your bag & have a lot 'juice' for your outing. A must for anyone that owns a bunch of 18650's!"
"excellent product. can also use it to store 12 CR123A batteries."
"Its a nice battery holder and works well."
"I have 3 of these cases now. Getting ready to buy another couple after harvesting some more 18650s. I night hike quite a bit with a couple of different Fenix headlamps that run 18650s so one of these rides in my backpack 24/7 and I don't have to worry about my backup batteries getting wet, dirty, damaged or shorting out on something. Fits both my protected and flattops perfectly. Wish the foam insert came permanently attached but I can fix that myself."
"I have 6 of these now. They're thick and durable, but light and compact. Well sized for a cupholder, saddle pocket or backpack pocket. I haven't tested, but I'm very confident in water resistance and shock response. These have made a lot of night adventures very fluid, and extended work shifts easier. Every Mecarmy product I own has been worth its price 10x over."
"Holds six 18650 batteries securely. Comes with a fitted foam insert under the cap. It's loose when there are no batteries but when the batteries are loaded, prevents them from moving thus creates a solid and stable housing. Fits all kinds of 18650s; protected or not. The plastic of the case is smoked so you can see the batteries inside. The case also comes with a lubed O-ring so the case should be waterproof. Overall, a great case for the adventurer who needs a dependable, durable, weatherproof case for batteries."
"These are a secure way to carry your 18650 batteries. It will also hold various other items as well. It is weatherproof/waterproof enough for almost any use other than completely submerging it deep for a long period of time. It has never failed me in any way so far. If you have an extra conversion sleeve for CR123 sized batteries for your 18650 light, they will fit in here also, along with a small USB charging cord, etc. The top foam padding is not secured in the lid and can fall out, but is easily remedied with a small piece of double sided tape. A good product, and I recommend it."
"This case is built solidly and seals tightly. You can't stack it like you can the flat rectangular cases, but it would be fine for dropping in a backpack."
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