Description

AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet

Protect your facility with the AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet, a purpose-built line of fire-rated storage cabinets engineered for controlled indoor lithium-ion battery storage. Available in five sizes ranging from compact countertop configurations to XX-large full-height cabinets, the Sentinel Mini provides secure centralized battery storage while integrating critical fire protection, detection, alarm, and containment features directly into the cabinet.

Manufactured in California, the Sentinel Mini Series combines 90-minute construction, triple-wall steel, thermal insulation, intumescent door seals, aspirating smoke detection, automatic fire suppression, audible and visual alarms, fail-closed ventilation, secure locking doors, and grounding into one complete lithium-ion battery storage solution.

Five standard cabinet configurations allow facilities to choose a footprint that matches their operation, while custom configurations are also available.

Sentinel Mini cabinets are designed for laboratories, manufacturing facilities, warehouses, universities, research facilities, battery testing operations, maintenance departments, and other industrial environments requiring controlled lithium-ion battery storage.

STORAGE ONLY — NO CHARGING. Sentinel Mini cabinets are designed for controlled lithium-ion battery storage and are not intended for battery charging.
Facility installation and use should follow applicable local codes, fire marshal requirements, and authority having jurisdiction requirements.

90-Minute Construction Automatic Fire Suppression Aspirating Smoke Detection Made in the USA

90-Minute Construction: Triple-wall steel construction with thermal insulation and intumescent door seals.

Integrated Response: Smoke detection, automatic suppression, and audible + visual alarms are built into the cabinet.

Secure Storage: Self-closing key-locking doors, grounding point, and fail-closed ventilation come standard.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Typical 2–4 week lead time.

Warranty & Parts
US-based service & support.

Why choose the AEL Sentinel Mini?

Integrated fire protection — passive containment, active detection, automatic suppression, and alarm systems are integrated directly into the cabinet.
Triple-wall construction — thermal insulation and intumescent door seals support the Sentinel Mini’s 90-minute construction.
Automatic fire suppression — a self-contained thermal-bulb-actuated canister activates at approximately 174°F and requires no external power for activation.
Fail-closed ventilation — a fusible-link intake closes during a fire event while the passive exhaust uses a fail-closed damper.
Five cabinet sizes — choose from countertop and full-height models, with custom configurations also available.

Talk to an expert

Get cabinet sizing help, facility integration guidance, and support selecting the right Sentinel Mini configuration for your lithium-ion battery storage requirements.

Call 734-855-4890

Technical Specifications

Model	Mini 30	Mini 40	Mini 60	Mini 80	Mini 100
Design	Compact Single Door / Countertop	Compact Double Door / Countertop	Full-Height Single Door	Full-Height Single Door	XX-Large Double Door
Dimesnions	43" H × 25" W × 26" D	43" H × 45" W × 26" D	77" H × 25" W × 24" D	77" H × 45" W × 24" D	81" H × 59" W × 36" D
Weight	—	—	—	—	—

Popular Industries & Use Cases

Manufacturing Facilities Laboratories Industrial & Battery Testing Academic & Research

Business Solutions & Procurement

Programs & Terms

Exclusive options for businesses and academics.

Apply for Net Terms Academic Discount

Documentation & Compliance

Keep purchasing and facility planning streamlined.

Request a Quote Tax Exemption

Custom Solutions

Custom cabinet configurations are available for specialized storage requirements and facility footprints.

Custom Request Consulting

Talk to Sales

We’ll help spec the right Sentinel Mini cabinet configuration for your facility.

Call 734-855-4890 Email Sales/Support

FAQ

What is the Sentinel Mini designed for?

The AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet is designed for controlled indoor lithium-ion battery storage. It provides a secure centralized storage platform with integrated fire-rated construction, smoke detection, automatic suppression, alarms, ventilation controls, grounding, and locking doors. It is designed for storage only and not for charging.

What fire protection features are included?

The AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet features 90-minute triple-wall construction with thermal insulation and intumescent door seals, aspirating smoke detection, automatic fire suppression, audible and visual alarms, and fail-closed ventilation.

What Sentinel Mini sizes are available?

The AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet is available in five standard sizes: Mini 30, Mini 40, Mini 60, Mini 80, and Mini 100. The range includes compact countertop cabinets, full-height single-door cabinets, full-height double-door cabinets, and an XX-large double-door configuration. Custom configurations are also available.

Can lithium-ion batteries be charged inside the cabinet?

No. The AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet is specifically designated for lithium-ion battery storage only. Charging batteries inside the Sentinel Mini is not an intended use.

Important Shipping Notice!

DISCLAIMER:

The AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet is carefully packaged to help ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.

Need Support?

We’ll help you select the right Sentinel Mini cabinet size and answer questions about specifications, custom configurations, and facility integration.

Call 734-855-4890

Specifications

Origin:	Made in the USA
product_resources_sku:	AEL-SM30-2026-1030
display_name:	AEL Sentinel Mini Fire-Rated Lithium-Ion Battery Storage Cabinet

Shipping & Returns

1–3 Business Days Standard Processing

Return Policy ↗ Varies by Product Warranty Policy ↗ Varies by Product

3 Days to Claim Inspect on Arrival

Shipping

Orders ship within 1–3 business days after payment clears. We ship Monday through Friday via UPS, USPS, and freight carriers.
Freight items (crated, hazmat, dropship, or special packaging) can take 1–5 business days to ship.
Expedited shipping speeds up transit, not processing. Contact us for true rush orders.
PO Box addresses ship USPS. Alcohols, chemicals, and hazmat cannot ship to a PO Box.

Full Shipping Policy

Delivery & Damage Claims

Inspect every shipment on arrival. Claims must be filed within 3 business days.
Visible damage? Refuse the delivery and have the driver document it. We will file the claim and ship a replacement.
Concealed damage: contact us within 2 days with photos of the packaging and item. Keep all packing materials.
Freight services (liftgate, residential, inside delivery) are the customer's responsibility to select for their location.

Damage & Freight Details

Returns

USA Lab branded products are returnable within 30 days of order date with prior authorization. Email us before sending anything back.
Solvents, chemicals, and consumables are not returnable once shipped. Custom and made-to-order items are final sale.
Unused items in original packaging carry a 15% restocking fee. Defective items ship back on us.
Items showing any signs of use, wear, contamination, or modification are not eligible for return.
Glassware damage must be reported within 3 business days of delivery for replacement or refund.

Full Return Policy

Custom & Made-to-Order Items

Customized and made-to-order products are final sale and not eligible for return under any circumstances.
This includes ductless fume hoods, configured tanks and reactors, and any item built to your specifications.
These products are manufactured specifically for your application. Confirm sizing, voltage, and configuration with our team before ordering.
Damage claim coverage still applies. Inspect on arrival and report issues within 3 business days.

Return Eligibility Details

Warranty

USA Lab products are covered against manufacturing defects for up to 3 years, depending on product line.
1 year: chillers, heaters, rotovaps, reactors, vacuum ovens, mixers, and most equipment. 2 years: UVP vacuum pumps. 3 years: scientific freeze dryers.
Wear items (glassware, gaskets, heating elements, sensors) and fittings/steel are not covered. Report defects within 30 days (3 days for glass).
Non–USA Lab brands are covered by their manufacturer's warranty. See the product's Warranty tab.

Full Warranty Policy

International Orders

Import duties, taxes, VAT, and brokerage fees are not collected by USA Lab and are the receiver's responsibility.
Verify your country's customs charges and import restrictions before ordering.
Refused or unclaimed international shipments are refunded minus shipping and a 15% restocking fee.
International orders are generally non-returnable. Damaged items must be reported within 3 business days.

International Guidelines