Description
Ensure longer autonomy for mission-critical systems with the APC Symmetra LX Extended-Run Battery Cabinet (SYARMXR3B3). Pre-populated with three hot-swappable SYBT5 VRLA battery modules, this 5U rack-mount enclosure seamlessly integrates with Symmetra LX UPS frames to multiply runtime without increasing footprint. A spill-proof lead-acid design, front-access serviceability, and tool-less installation keep maintenance simple, while UL 1778 and CSA certifications confirm enterprise-grade safety.
Key benefits
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Extended runtime – triples available battery capacity for Symmetra LX UPS installations.
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Hot-swappable modules – replace batteries without powering down connected loads.
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5U rack profile – maximises space efficiency in dense IT environments.
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Low maintenance – sealed VRLA chemistry and front-access terminals reduce service time.
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Two-year APC warranty – protect your investment with factory-backed support.
| Category | Detail |
|---|---|
| Model / SKU | SYARMXR3B3 |
| Product type | Extended-run battery cabinet (battery accessory) |
| Compatible UPS | APC Symmetra LX series |
| Battery modules | 3 × SYBT5 (hot-swappable, VRLA lead-acid) |
| Battery slots empty | 0 |
| Rack height | 5U |
| Device mounting | Rack-mount, enclosed cabinet |
| Input / nominal voltage | 208 V DC |
| Dimensions (H × W × D) | 8.46 × 18.58 × 27.01 in (21.5 × 47.2 × 68.6 cm) |
| Net weight | 251.5 lb / 114.1 kg |
| Colour | Black |
| Conformance | UL 1778, CSA |
| Operating temp. | 32 – 104 °F (0 – 40 °C) |
| Operating RH | 0 – 95 % (non-condensing) |
| Operating altitude | 0 – 10,000 ft |
| Storage temp. | 5 – 113 °F (-15 – 45 °C) |
| Storage altitude | 0 – 15,000 ft |
| Shipping weight | 281.6 lb / 127.7 kg |
| Package dimensions | 13.50 × 38.58 × 23.58 in (34.3 × 98 × 59.9 cm) |
| Warranty | 2-year repair or replace |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
