APC Smart-ups Ultra On-line Lithium ION XBP 180V 2U Rack/tower on 2022-1479904 - SRTL180RM2UBP

APC by Schneider Electric SRTL180RM2UBP Smart-UPS Ultra On-Line Li-Ion External Battery Pack

Overview

The SRTL180RM2UBP is a 180V lithium-ion external battery pack designed for the APC Smart-UPS Ultra On-Line series, adding extended runtime capacity in a compact 2U rack or tower form factor. If your facility runs critical loads — server rooms, network closets, security infrastructure — and needs runtime beyond what the base UPS unit provides, this battery module slots into the same footprint and delivers additional reserve without adding a separate enclosure to manage.

At 86mm high and 432mm wide, the SRTL180RM2UBP fits standard 19-inch rack cabinets and occupies only 2U of vertical space — meaningful when rack real estate is constrained. The 724mm depth does require a full-depth cabinet; verify your rack's usable depth before ordering.

Key Features

• 180V Li-Ion Battery Architecture: Lithium-ion chemistry carries a higher energy density than traditional VRLA/AGM batteries, meaning the SRTL180RM2UBP stores more usable capacity in a smaller physical footprint. For rack deployments where weight and space are both concerns, this matters — lithium-ion packs are also generally lighter per watt-hour than lead-acid equivalents.
• 2U Rack/Tower Convertible Form Factor: The 86mm (2U) profile fits alongside the Smart-UPS Ultra On-Line base unit in any standard 19-inch rack. Tower orientation is also supported for wiring closets or under-desk installs where rack mounting isn't practical — one SKU handles both deployment scenarios.
• Operating Temperature 0–40°C: Rated for standard indoor environments from 0°C to 40°C (32°F to 104°F), this range covers the vast majority of conditioned server and telecom rooms. If your space runs hot during summer or you're deploying in an uncooled closet, confirm ambient temperatures stay within range — lithium-ion performance and longevity degrade meaningfully above the rated ceiling.
• Storage Temperature –15 to 45°C: The extended storage range means the unit can be warehoused or staged in spaces that aren't climate-controlled to server-room standards — useful for large project deployments where batteries sit in staging areas before install.
• 0–95% Non-Condensing Humidity Tolerance: Both operating and storage humidity ratings reach 95%, covering most HVAC-controlled indoor environments. As with any electronics, condensation is the concern — the rating assumes non-condensing conditions.
• Operating Altitude to 3,048m (10,000 ft): Rated for installations up to 3,048 meters above sea level, which covers virtually all continental US deployments including high-altitude facilities in Denver or similar locations without derating concerns.
• RoHS Compliance: The SRTL180RM2UBP carries RoHS certification, confirming restriction of hazardous substances. For public sector, education, or EU-destination deployments where environmental compliance documentation is required during procurement, this is already checked.
• Silver Finish: Matches the APC Smart-UPS Ultra On-Line color family for a consistent visual profile in open-frame or glass-door racks where aesthetics matter to facilities or IT management.

Integration and Compatibility

The SRTL180RM2UBP is engineered for the APC by Schneider Electric Smart-UPS Ultra On-Line platform and connects directly to the compatible base UPS unit to extend runtime. It is not a standalone UPS — it requires the host Smart-UPS Ultra On-Line unit to function. Before purchasing, confirm the specific base UPS model is listed as compatible with this battery pack; not all Smart-UPS models share the same battery bus voltage or connector standard.

For data center and network infrastructure deployments, pairing this pack with a rack UPS system and a power distribution unit gives you a complete power resilience stack. Facilities running surveillance recorders, access control panels, or network switching infrastructure should also evaluate power management options to match runtime requirements to the actual load profile — battery runtime scales directly with how much load you place on the UPS.

If you're sizing a new power protection system from scratch, reviewing a UPS selection guide before finalizing the battery extension strategy will help avoid over- or under-provisioning runtime. The 180V architecture of the SRTL180RM2UBP is specific to the Ultra On-Line product family, so it is not cross-compatible with the standard Smart-UPS or Smart-UPS SMT/SMX lines.

Frequently Asked Questions

Q: Is the SRTL180RM2UBP a standalone UPS unit?

A: No. The SRTL180RM2UBP is an external battery pack (XBP) designed to extend the runtime of a compatible APC Smart-UPS Ultra On-Line base unit. It does not function independently and requires the host UPS for power conversion and management.

Q: What rack space does the SRTL180RM2UBP require?

A: The unit occupies 2U of rack space (86mm height) in a standard 19-inch rack. The depth is 724mm, so a full-depth cabinet is required. Verify your rack's usable interior depth before installation.

Q: What operating temperatures are supported?

A: The SRTL180RM2UBP is rated for operating temperatures from 0°C to 40°C (32°F to 104°F). Storage temperatures extend from -15°C to 45°C. Operating outside these ranges can affect battery performance and longevity.

Q: Is the SRTL180RM2UBP RoHS compliant?

A: Yes. The SRTL180RM2UBP carries RoHS compliance certification, confirming that it meets restrictions on hazardous substances — relevant for EU deployments or public sector procurement with environmental compliance requirements.

Q: Can the SRTL180RM2UBP be used in a tower configuration?

A: Yes. The unit supports both rack-mount (2U, 19-inch) and tower orientations, giving flexibility for wiring closets or environments where rack mounting isn't available.

Q: What altitude limitations apply to the SRTL180RM2UBP?

A: The unit is rated for operation up to 3,048 meters (10,000 feet) above sea level, covering virtually all standard commercial and enterprise installation sites in North America.

James Everett

The SRTL180RM2UBP is a 180V lithium-ion external battery module — and the voltage architecture is the key spec to get right before purchasing. This pack is purpose-built for the Smart-UPS Ultra On-Line family's DC battery bus; if you try to pair it with a different Smart-UPS line expecting the same connector or bus voltage, it won't work. Confirm your base unit explicitly lists this SKU as a supported battery extension before the order ships.

Technical Highlights:

• 180V Li-Ion Architecture: Higher bus voltage compared to traditional 24V or 48V VRLA battery packs means lower current for the same power level — reduces resistive losses and heat in the battery cabling, which matters in dense rack configurations.
• 2U / 724mm Depth Envelope: The 86mm height keeps rack footprint tight, but the 724mm depth is the constraint to plan around. Most shallow or mid-depth cabinets (600–700mm usable interior) won't fit this unit — measure before you quote.
• 0–40°C Operating Range: Lithium-ion performance is temperature-sensitive in both directions. At the top of the rated range (40°C ambient), expect measurable reduction in cycle life over time. If the rack environment regularly peaks near 40°C, improving airflow or cooling is the better investment before adding battery capacity.

Deployment Considerations:

• The SRTL180RM2UBP ships at approximately 42kg (package weight) — confirm the rack can handle the combined rail-weight load of both the base UPS and this battery pack before finalizing the cabinet spec. Two-person installation is practical advice, not a suggestion.
• RoHS certification is documented, but if your project requires NDAA Section 889 compliance documentation, confirm with APC directly — RoHS and NDAA are separate certifications addressing different requirements.

This battery pack is the right choice for IT managers and facilities engineers extending runtime on an existing Smart-UPS Ultra On-Line deployment in a full-depth 19-inch rack — particularly in edge data centers, network operations centers, or security command rooms where lithium-ion's weight and footprint advantage over lead-acid justifies the investment.