APC Smart-ups SRT 48V 1KVA 1.5KVA Battery Pack - 2U - Online - Black - 2 Years - SRT48BP

APC by Schneider Electric SRT48BP 48V External Battery Pack for Smart-UPS SRT

Overview

The APC by Schneider Electric SRT48BP is a 48V external battery pack designed to extend the runtime of compatible Smart-UPS SRT online double-conversion UPS systems supporting up to 1.5 kVA loads. Where a single UPS battery module may not deliver enough backup time for a server room, network closet, or critical surveillance recording infrastructure, the SRT48BP slots in as a dedicated runtime extension — using sealed lead-acid (VRLA) chemistry in a tower form factor that integrates directly with the SRT family. For integrators sizing power protection for network video recorders or edge computing nodes, adding an SRT48BP is the straightforward path to meeting runtime requirements without replacing the UPS itself.

Key Features

• Hot-Swap Battery Replacement: The SRT48BP supports hot-swappable battery replacement, meaning you can pull and replace aging battery modules without powering down the protected load. In a live surveillance or network environment, that translates to zero-downtime maintenance — no scheduled outage windows required.
• Sealed Lead-Acid (VRLA) Technology: VRLA cells are valve-regulated, meaning no electrolyte spillage risk and no need for water maintenance. This makes the SRT48BP suitable for installation in enclosed equipment rooms or alongside IT gear where a flooded battery would be a non-starter.
• Up to 5-Year Battery Life: With a rated maximum battery life of 5 years, you're not cycling through replacements every 2–3 years the way some entry-level UPS batteries demand. For deployments where battery swap logistics are a real operational cost, this lifespan matters.
• 1.5 kVA Capacity Compatibility: The SRT48BP is matched to Smart-UPS SRT systems at the 1 kVA and 1.5 kVA tier — sized for the power budget of small server stacks, NVR clusters, or critical network switching gear rather than oversized for small deployments or undersized for large ones.
• Wide Operating Temperature Range (0–40°C): Operational from freezing to 40°C ambient means the SRT48BP handles typical server room, IDF closet, or light-industrial environments without thermal derating. Storage is rated down to -15°C, relevant if the unit needs to be warehoused before installation in cold climates.
• High-Altitude Operation (0–3,000 m): Rated for operation up to 3,000 metres above sea level — relevant for deployments in mountain facilities, high-elevation data centers, or broadcast infrastructure where altitude can affect battery chemistry and UPS performance specs.
• Tower Form Factor: The tower configuration suits installations where rack space is premium or unavailable — standalone placement alongside the parent UPS in a comms room or wiring closet. At 432 mm tall × 536 mm deep × 85 mm wide, plan for floor or shelf clearance accordingly.
• 0–95% Operating Humidity (Non-Condensing): Full humidity range coverage means the SRT48BP won't require climate-controlled conditions beyond what the connected UPS itself needs. Appropriate for facilities where HVAC control is imperfect.

Integration and Compatibility

The SRT48BP is engineered for the APC Smart-UPS SRT product family at the 1 kVA and 1.5 kVA capacity tier. Before ordering, confirm your parent UPS model accepts an external 48V battery pack — not all SRT models support external pack expansion at this voltage. The pack connects via the battery bus on the SRT UPS, and runtime calculation depends on the actual load draw on the parent unit. For environments running UPS and power protection alongside high-draw edge servers or PoE switches, verify total wattage against the SRT's capacity before estimating runtime gains. Consult the parent UPS's power planning documentation for runtime curves at specific load percentages — the SRT48BP's contribution to runtime scales inversely with load.

Frequently Asked Questions

Q: Is the SRT48BP compatible with all APC Smart-UPS models?

A: No. The SRT48BP is designed specifically for the APC Smart-UPS SRT family at 1 kVA and 1.5 kVA capacity. Verify your specific SRT model number accepts an external 48V battery pack before purchasing — not all SRT variants support external battery expansion.

Q: Can I replace the batteries in the SRT48BP while the UPS is still running?

A: Yes. The SRT48BP supports hot-swap battery replacement, meaning battery modules can be swapped without shutting down the protected load or powering off the parent UPS system.

Q: What battery technology does the SRT48BP use?

A: The SRT48BP uses sealed lead-acid (VRLA) batteries. VRLA cells are valve-regulated and maintenance-free — no water topping required, no spillage risk, suitable for enclosed equipment rooms.

Q: What is the rated battery lifespan for the SRT48BP?

A: The maximum rated battery life is 5 years under normal operating conditions. Actual lifespan depends on ambient temperature, discharge frequency, and load patterns.

Q: What are the operating temperature limits for the SRT48BP?

A: The SRT48BP operates between 0°C and 40°C (32°F to 104°F). Storage temperature range is -15°C to 45°C. Operating relative humidity tolerance is 0–95%.

Q: Does the SRT48BP require rack mounting?

A: No. The SRT48BP ships in a tower form factor. It is not a rack-mount unit and is intended for floor or shelf placement alongside the parent tower UPS.

Marty Allison

The SRT48BP earns its place in a power protection stack specifically because of its hot-swap capability — in my experience, that single spec separates batteries you can manage proactively from ones that force a downtime event when the chemistry degrades at year three. With a 5-year maximum rated battery life, you're looking at a predictable replacement cycle, not an emergency.

Technical Highlights:

• VRLA Sealed Chemistry: No maintenance, no venting concerns, no electrolyte risk in a sealed equipment room — the SRT48BP won't require ventilation accommodations that a flooded lead-acid pack would.
• 0–40°C Operating Range: Covers virtually every IDF closet and comms room scenario without derating. The -15°C storage floor also means you can pre-stage units in unheated warehouses without damaging the cells before deployment.
• High-Altitude Rating to 3,000 m: This is frequently overlooked at spec time and surfaces as a field problem at elevation. The SRT48BP is explicitly rated for operation up to 3,000 metres — call that out in your design documents for mountain-region or high-elevation campus deployments.

Deployment Considerations:

• Confirm your parent SRT UPS model explicitly supports external 48V battery pack expansion before the SRT48BP ships to site — the SRT family spans multiple voltage and capacity tiers, and not every variant accepts this pack.
• The tower form factor (432 mm H × 536 mm D × 85 mm W) is narrow but deep — verify shelf depth in your comms cabinet before mounting. Floor placement next to the parent UPS is the safer default if shelf depth is marginal.

The SRT48BP is the right call for small-footprint critical infrastructure — NVR clusters, edge switching stacks, or compact server rooms — where the parent Smart-UPS SRT runtime needs extending without a forklift UPS upgrade and where hot-swap maintainability is a real operational requirement, not a checkbox.