Thyrm Llc Cellvault 21 Battery Storage For 21700 & Sl B50 Urban Gray
$24.29
The Thyrm CellVault-21 battery storage is a rugged, compact case designed to keep your 21700 rechargeable batteries and Streamlight SL-B50 batteries protected and ready to deploy. If you rely on tactical flashlights or high-powered tools that demand premium batteries, this is the gear you need to prevent physical damage, environmental exposure, and the frustration of a dead battery when it matters. Built in the USA with dual-wall construction and a waterproof seal, the CellVault-21 mounts directly to MOLLE/PALS webbing on your pack, chest rig, or belt—taking up less than one column of real estate so it integrates seamlessly into your existing setup.
The design philosophy here is simple: batteries are expensive and critical, so they deserve better than loose pockets or damaged cases. The CellVault-21 uses an IPX7-rated waterproof O-ring seal to keep moisture and debris out during extended field use. Clear side windows let you check battery status at a glance without opening the case, and the silicone foam shock absorber inside cushions your battery against impact while dampening rattle. The metal latch is upgraded from earlier models for more reliable attachment, especially when working with tight webbing, and a detachable design means you can install it on any MOLLE panel and back it up with the included security pin if you need extra retention.
Setup is straightforward: the back strap threads through MOLLE webbing in seconds, the latch snaps home, and you're done. The slim profile keeps pack weight and bulk down—critical when every inch of real estate on your gear is spoken for. Whether you're running night operations, backcountry hunting with a high-lumen light, or maintaining a bug-out bag, the CellVault-21 keeps your spare batteries organized, protected, and immediately accessible.
Key Features
- Holds one 21700 rechargeable battery or one Streamlight SL-B50 battery (foam removed)
- Waterproof O-ring seal rated IPX7 at 2 meters for 30+ minutes of submersion
- Dual-wall construction with silicone foam shock absorber for impact protection and noise dampening
- Clear side viewing windows to check battery status without opening the case
- Secure metal latch with detachable back strap for easy MOLLE/PALS attachment
- Slim profile fits less than one MOLLE column for seamless integration
- Includes security pin for reinforced retention on high-movement gear
- Made in the USA
Specifications
| Waterproof Rating | IPX7 at 2 meters for 30+ minutes |
| Fits | 21700 rechargeable batteries, Streamlight SL-B50 batteries (foam removed) |
| Attachment | MOLLE/PALS webbing |
| Profile | Less than 1 MOLLE column wide |
| Latch Type | Detachable metal with security pin included |
| Interior Protection | Silicone foam shock absorber and noise silencer |
| Color | Urban Gray |
| Manufacturer | Made in USA |
Frequently Asked Questions
Will the CellVault-21 fit my Streamlight battery?
Yes—it's designed to hold one Streamlight SL-B50 battery, though you'll need to remove the foam insert from the battery for it to fit inside the case.
How waterproof is this battery case?
The CellVault-21 has a waterproof O-ring seal rated to IPX7, which means it can withstand immersion in water up to 2 meters deep for 30 minutes or more. This keeps your battery dry during heavy rain, water crossings, and normal field conditions.
How do I attach it to my gear?
The detachable back strap threads through any MOLLE or PALS webbing panel on your pack, rig, or belt. Align the side tabs and snap the metal latch back into place. If you need extra security, insert the included pin through both the latch and back strap.
What's the best way to load my battery?
First, verify the silicone foam shock absorber is at the bottom of the case. Insert your battery with the positive (+) terminal facing down toward the foam. Close the latch, making sure no material is caught in the tube-to-cap interface.
