Data Center Battery Enclosures
Lithium battery enclosures for data centers and AI infrastructure.
Enclosures engineered to isolate UPS battery systems from critical IT infrastructure, with 1, 2 and 3-hour constructions available and integrated suppression options configured by project.
Battery storage for data centers
See the data center enclosure.
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Outdoor Solutions — Sentinel 8×20
Purpose-built modular container enclosure for outdoor battery storage and staging.
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Outdoor Solutions — Dealership Isolation
Outdoor containment for recalled, damaged, or service-stage battery inventory.
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Custom Configuration
Custom sizes and layouts for projects that need a tailored enclosure approach.
Indoor battery storage solutions
Indoor solutions.
Walk-in or rack access · grey or white
Indoor Sentinel
Built inside your building, with exhaust ducted out and alarms tied into your fire-alarm system.
Need cabinet-scale storage? See Sentinel Mini™ battery cabinets.
As data centers transition from lead-acid to lithium-ion UPS systems — driven by higher energy density, longer cycle life, and AI power demands — the fire safety challenge intensifies. Lithium batteries require purpose-built containment that traditional data center construction does not provide.
The Solution
AEL Sentinel — purpose-built for data center battery isolation
The Sentinel is a prefabricated enclosure engineered to house lithium-ion battery systems outside or adjacent to a data hall. It coordinates physical separation, environmental controls, and application-specific safety-system options around the project design basis.
- Coordinates battery isolation from servers and networking equipment
- Prefabricated scope can reduce field integration
- Configured to your rack layout and power architecture
- Redundancy options available for critical-facility planning
- Project documentation available for AHJ review
Engineered for critical infrastructure
Sentinel enclosures can integrate the project-selected safety systems within one coordinated package.
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1, 2 and 3-Hour Constructions
Steel-framed enclosures with 1, 2 and 3-hour constructions available for walls and roof, coordinated with the battery system, site conditions, and authority review path.
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Integrated Suppression & Detection
Aerosol or other suppression, aspirating smoke detection, thermal sensors, and gas-monitoring options can be factory integrated as specified for the project.
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Engineered for Rack Integration
Interiors engineered around your battery racks, with power, cabling and climate connections planned before fabrication.
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Controls Built to UL 508A
Control panels built to UL 508A, BMS integration points, remote alarm contacts, and building-management-system tie-ins are available as specified.
Traditional stick-built battery rooms can require extensive on-site coordination among multiple trades. Prefabricated Sentinel enclosures move more of the selected scope into a controlled fabrication process.
| Criteria | AEL Sentinel | Stick-Built Room |
|---|---|---|
| Deployment timeline | Quoted by project | Depends on site and trades |
| Wall construction | 1, 2 and 3-hour constructions available | Varies by contractor |
| Standards coordination | Designed and built to UL 1487 and NFPA 855 standards; IFC and local criteria by project | Depends on project team |
| Quality control | Factory-tested, single source | Multiple trades, field inspection |
| Relocatable | Yes — prefabricated unit | No — permanent construction |
| Integrated suppression | Available as specified | May require separate field scope |
| Engineering documentation | Stamped drawings and AHJ submittal package with your order | May require separate engineering scope |
Scope your data center battery enclosure project
Engineering consultation. Response within 24 hours.
Frequently asked questions
Common questions about battery enclosures for data center and AI infrastructure applications.
What is a data center battery enclosure?
A data center battery enclosure is a purpose-built structure designed to house lithium-ion UPS batteries separately from IT equipment. It can coordinate physical separation, 1, 2 or 3-hour construction, ventilation, detection, and suppression around the selected battery system, rack layout, power architecture, site, and authority review path.
Why do data centers need dedicated battery enclosures?
Lithium-ion batteries present thermal-runaway and propagation risks. In a data center environment, a battery incident can threaten adjacent servers, network infrastructure, and facility uptime. Applicable project requirements may address separation, ventilation, detection, suppression, and wall construction for battery storage installations.
How are Sentinel enclosures coordinated with NFPA 855?
Sentinel enclosures are designed and built to UL 1487 and NFPA 855 standards. AEL coordinates each enclosure around the selected battery system, separation criteria, ventilation, detection, suppression, 1, 2 or 3-hour construction, and documentation needed for project and AHJ review. Final requirements and approval remain project specific.
How long does it take to deploy a Sentinel battery enclosure for a data center?
Engineering, fabrication, delivery, and installation schedules are quoted for each project. A prefabricated enclosure can reduce field construction by integrating the approved ventilation, detection, suppression, and control scope before delivery, while placement, utility connections, and commissioning remain site dependent.
Can Sentinel enclosures house batteries for AI data center power demands?
Sentinel enclosures can be configured for UPS battery systems supporting AI, colocation, edge, and enterprise data-center applications. Published 8×10, 8×20, and 8×40 footprints are starting points; the final configuration is selected around the battery racks, power architecture, access, and site constraints.
What standards are AEL battery enclosures built to?
Sentinel battery enclosures are designed and built to UL 1487 and NFPA 855 standards, with IFC, OSHA, and local requirements addressed in the project design basis. Every build uses UL or ETL (Intertek) listed components, and control panels built to UL 508A are available as specified. Construction and documentation are coordinated around the selected battery system, site, and AHJ review needs.
Related solutions
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Tell us about your application and timeline. Our team — not a call center — responds within one business day.
- Built in-house: fabrication, electrical, controls and suppression by our own team.
- Approved Stat-X distributor.
- Factory testing, documented as specified.
Financing available. Explore equipment financing and leasing options
- Talk to an engineer (888) 502-6695
- Location 1402 Airport Blvd, Santa Rosa, CA 95403
- Hours Mon – Fri, 8AM – 6PM PT
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What happens next
- Engineering review. An AEL engineer reads your request and checks it against the right product line.
- We reach out within one business day. By email or phone, to confirm scope, site conditions and timeline.
- Specs and pricing. You receive pricing and the key specifications for your configuration. Project drawings are prepared once an order is placed.