Download What You Need
Every document is available upon request — formatted for immediate use in project specifications, submittals, and design packages.
VRLA Battery Series — Full Technical Datasheet
Complete electrical specifications, dimensions, terminal configurations, performance curves, and operating parameters for Axion VRLA batteries.
Wet Cell Battery Series — Full Technical Datasheet
Detailed electrochemical data, capacity tables, charging profiles, and mechanical specifications for flooded lead-acid battery systems.
VRLA Battery — One-Page Cut Sheet
Concise product summary for project submittals, RFQ packages, and owner review packages. Includes key specs and ordering information.
Wet Cell Battery — One-Page Cut Sheet
One-page summary for flooded battery product lines — suitable for submittals, design team distribution, and pre-qualification packages.
Battery Cabinet — 2D CAD Drawing Set
Dimensioned DWG drawings for stationary battery cabinets including plan, elevation, and section views with clearance zones.
Battery Cabinet — BIM / Revit Family
Revit family file for battery cabinet system integration in BIM models. Includes parametric properties for cabinet sizing.
CSI Division 26 — VRLA Battery System Specification
MasterFormat-compliant specification section for VRLA battery systems — ready to insert directly into your project manual.
CSI Division 26 — Wet Cell Battery System Spec
Complete MasterFormat specification language for flooded battery systems with basis-of-design, quality assurance, and execution provisions.
Battery Sizing Worksheet — VRLA
Structured IEEE 485-based worksheet for calculating VRLA battery string capacity based on load, voltage, and design margin requirements.
Battery Sizing Worksheet — Wet Cell
IEEE 485 sizing worksheet for flooded battery systems with electrolyte temperature correction factors and aging derating guidance.
Standard Submittal Package — VRLA
Complete submittal package including cut sheet, datasheet, UL listing documentation, and installation notes for project approval.
UPS Battery Selection — Application Note
Technical guidance for specifying VRLA and wet cell batteries in commercial and industrial UPS applications.
In-Depth Engineering Guides
Comprehensive technical references written for engineers — covering battery selection, lifecycle planning, maintenance, and system design.
VRLA vs. Wet Cell — Engineering Selection Guide
A comprehensive guide to selecting between VRLA and flooded battery technologies — covering application requirements, lifecycle cost, maintenance, and regulatory considerations.
- Application mapping
- Lifecycle cost analysis
- Maintenance comparison
- Regulatory alignment
- Decision framework
Battery Room Design Guide
Engineering guidance for designing battery rooms and enclosures compliant with NEC Article 480, NFPA 70E, and ASHRAE ventilation requirements.
- Ventilation calculations
- NEC 480 compliance
- Arc flash zoning
- Containment design
- Access and clearances
Battery Maintenance & Inspection Protocol
A structured guide to VRLA and wet cell battery maintenance programs — including inspection intervals, testing procedures, and capacity assessment criteria.
- Inspection intervals
- Float voltage testing
- Capacity trending
- Wet cell equalization
- Record keeping
Battery Lifecycle Planning Guide
Strategic guidance for planning battery replacement cycles, managing end-of-life transitions, and minimizing downtime in critical power installations.
- Replacement triggers
- EoL indicators
- Upgrade planning
- Disposal compliance
- Budget forecasting
Engineering Tools & Worksheets
Axion provides structured sizing worksheets and selection tools based on IEEE and IEC standards — available for download or completion with Axion engineering support.
VRLA Battery String Sizing
Calculate VRLA battery string capacity using the IEEE 485 method. Accounts for load profile, design margin, aging factor, and temperature correction.
- ›Load current (amperes)
- ›Discharge time (minutes/hours)
- ›Minimum terminal voltage
- ›Design margin (%)
- ›Ambient temperature
Wet Cell Battery Sizing
IEEE 485-based sizing worksheet for flooded lead-acid systems with electrolyte temperature correction, specific gravity derating, and cell equalization requirements.
- ›Load profile
- ›Discharge duration
- ›Electrolyte temperature
- ›Specific gravity target
- ›Aging derating factor
Charger Sizing Calculator
Determine appropriate charger current output to fully recharge a battery system within the required recharge time following a full discharge event.
- ›Battery Ah capacity
- ›Required recharge time (hours)
- ›Charger efficiency (%)
- ›Float voltage
- ›Number of cells
Battery Room Ventilation
Calculate minimum ventilation airflow requirements for battery rooms based on hydrogen off-gassing rates during charging, per NEC 480 and ASHRAE.
- ›Number of cells
- ›Battery type
- ›Charge rate
- ›Room volume (m³/ft³)
- ›Local code requirements
All worksheets are based on published IEEE / IEC standards. Axion engineering support is available at no charge to validate results for your project.
Technical Notes by Application
Application-specific technical guidance — written for engineers designing battery systems for distinct facility types and power continuity requirements.
Battery Backup for Healthcare Facilities
Design criteria for life-safety UPS battery systems in hospitals, surgical centres, and medical imaging facilities — covering code requirements, discharge durations, and maintenance planning.
- ✓NFPA 99 life-safety system requirements
- ✓UPS runtime design for ORs and ICUs
- ✓VRLA preference for clean-environment installations
- ✓Periodic inspection and capacity testing
UPS Battery Design for Data Centers
Technical guidance for specifying VRLA and wet cell battery strings in Tier I–IV data centers, including redundancy design, string sizing, and thermal management.
- ✓N+1 and 2N battery redundancy
- ✓IEEE 485 string sizing methodology
- ✓Thermal runaway prevention
- ✓SNMP-based monitoring integration
DC Control Power for Utilities & Substations
Application guidance for flooded and VRLA batteries in utility DC control systems — covering protective relay backup, SCADA power, and breaker trip/close circuits.
- ✓IEEE 485 / 1115 compliance
- ✓125 Vdc and 48 Vdc systems
- ✓Wet cell preference for long-lifecycle sites
- ✓Equalization charging protocols
Battery Systems for Telecom Infrastructure
Design and specification guidance for VRLA batteries in telecom central offices, remote sites, and tower installations — including Telcordia GR-63 compliance and float life considerations.
- ✓Telcordia GR-63-CORE compliance
- ✓48 Vdc string design
- ✓High-density cabinet systems
- ✓Float voltage and temperature management
Key Standards for Battery System Design
A quick-reference guide to the primary electrical, safety, and environmental standards that govern battery system specification in North America.
Battery Sizing
Recommended practice for sizing lead-acid batteries for stationary applications
VRLA Maintenance
Recommended practice for maintenance, testing, and replacement of VRLA batteries
Wet Cell Installation
Recommended practice for installation of vented nickel-cadmium and lead-acid batteries
Battery Installations
NEC Article 480 — requirements for stationary battery installations in all occupancies
Electrical Safety
Standard for electrical safety in the workplace — arc flash and PPE requirements
Emergency Lighting
Emergency lighting and power equipment — battery backup listing requirements
UPS Systems
Uninterruptible power supply systems — battery performance and safety listing
Stationary Batteries
Stationary lead-acid batteries — general requirements and methods of test
Canadian Electrical Code
Canadian Electrical Code Part I — battery installation rules for Canadian projects
Battery Room Ventilation
HVAC and ventilation design for battery rooms — hydrogen off-gassing management
Direct Support for Engineers & Specifiers
Axion's engineering team provides no-cost technical support to consulting engineers, specifiers, and facility managers throughout the project lifecycle.
Specification Writing Support
We prepare or review CSI MasterFormat specification language for VRLA and wet cell battery systems — tailored to your project's code jurisdiction and owner requirements.
- ✓Division 26 spec section (DOCX)
- ✓Substitution clauses
- ✓Performance requirements language
- ✓Warranty provisions
Basis-of-Design Preparation
Axion prepares basis-of-design narratives and comparative analysis documents — suitable for inclusion in design development or design-build RFP packages.
- ✓BoD narrative (PDF)
- ✓VRLA vs wet cell comparison
- ✓Site-specific design criteria
- ✓Lifecycle cost summary
Battery Sizing & Design Review
Submit your load profile and design parameters — Axion's engineering team will validate sizing calculations and provide a stamped review memo.
- ✓IEEE 485 sizing worksheet
- ✓Sizing validation memo
- ✓String configuration recommendation
- ✓Charger sizing guidance
Submittal Package Preparation
Axion prepares complete submittal packages for project approval — including product data, shop drawings, and certification documentation.
- ✓Product data sheets
- ✓Dimensional drawings
- ✓UL/cUL listings
- ✓O&M excerpts
Axion's engineering support programs are available at no cost to consulting engineers, specifiers, and project managers. Contact us to initiate a support request.
Access the ResourcesYour Project Needs
Request any document from the library, initiate an engineering support request, or contact Axion directly — our technical team responds fast.
No-cost resources for engineers, specifiers & facility managers — VRLA and wet cell battery systems