APC by Schneider Electric LIBSESMG13UL Galaxy Li-ion Battery Cabinet
Overview
The APC by Schneider Electric LIBSESMG13UL is a lithium-ion external battery cabinet engineered for enterprise UPS systems in the Galaxy product family. Configured with 13 battery modules at 2.04 kWh each — totaling 26.52 kWh of usable energy capacity — it delivers the extended runtime that data centers, critical infrastructure environments, and large-scale UPS power systems require when grid events run long. At 67 Ah, this is not a supplement; it is a primary runtime extension designed for deployments where minutes of backup translate to significant operational or financial exposure.
The tower form factor stands 1,970 mm tall with a 650 mm width and 587 mm depth — a footprint that fits standard raised-floor or open-floor UPS rows without requiring custom infrastructure. The white enclosure matches Galaxy UPS system aesthetics. RoHS compliance is verified for this SKU, and sustainability documentation is available for procurement teams with environmental reporting obligations.
Key Features
- 13 × 2.04 kWh Li-Ion Modules (26.52 kWh Total): Lithium-ion chemistry delivers more energy per kilogram than VRLA alternatives, which matters in facilities where floor loading is a constraint. The modular design also means you can right-size runtime at commissioning or expand capacity later without replacing the entire cabinet — a real advantage over fixed-capacity VRLA strings.
- 67 Ah Capacity: At 67 Ah, this cabinet supports extended runtime calculations that traditional sealed lead-acid external battery cabinets in the same footprint cannot match. When sizing backup duration for a 100kW+ critical load, that amp-hour figure feeds directly into your runtime equations — confirm against your UPS model's discharge curves for the actual runtime at your load percentage.
- Lithium-Ion Chemistry — Longer Service Life: Li-ion cells tolerate partial state-of-charge cycling far better than VRLA, which degrades rapidly when not kept at float. In environments with frequent short outages — utility switching, momentary sags — the LIBSESMG13UL accumulates fewer damaging cycles, translating to a longer effective service interval and lower total cost of ownership over the cabinet's life.
- Operating Temperature Range 18–28°C: The defined operating band is narrower than some VRLA cabinets, which is a deliberate Li-ion characteristic — these cells perform optimally within a tighter thermal envelope and deliver rated capacity consistently within that range. Ensure your UPS room HVAC maintains this range; deviating above 28°C will trigger thermal management responses and can reduce rated life.
- Storage Temperature 0–40°C: For staging, transport, or planned shutdowns, the cabinet tolerates ambient temperatures from 0°C to 40°C without damage to the cells. This matters for integrators receiving equipment weeks before a scheduled cutover — store it climate-controlled but standard warehouse temperatures are acceptable.
- Operating Altitude Up to 3,000 m: Certified for operation at altitudes up to 3,000 meters above sea level, covering the majority of terrestrial data center and telecommunications deployments globally — including high-altitude sites in the western US, South America, and parts of Asia where altitude derating is a real design consideration.
- Tower Form Factor — 650 × 587 × 1,970 mm: The tower configuration integrates with Galaxy UPS external battery configurations without requiring a dedicated rack bay. The 587 mm depth fits alongside standard 600 mm deep UPS rows with minimal aisle intrusion. Factor the 432 kg shipping weight into your floor loading assessment before installation.
- RoHS Compliant: Verified RoHS compliance supports procurement in jurisdictions with hazardous substance restrictions and simplifies end-of-life disposal documentation — a real requirement for enterprise and government procurement teams working through environmental compliance frameworks.
Integration and Compatibility
The LIBSESMG13UL is designed for the APC Galaxy UPS product family. Before purchasing, confirm compatibility with your specific Galaxy UPS model — Li-ion external battery cabinets are not universally cross-compatible with every Galaxy SKU, and the number of cabinets per UPS string is limited by the host UPS's battery bus specifications. Consult APC's Galaxy configuration guides for your UPS model to verify maximum attached cabinet count and expected runtime at your operating load. This cabinet does not include a standalone battery management system — battery monitoring and management functions are handled by the host Galaxy UPS.
For facilities planning large-scale UPS deployments or runtime extension projects, pre-sales engineering consultation is available to validate cabinet count, floor loading, and thermal management requirements before equipment is ordered. Pairing this cabinet with an appropriately sized Galaxy UPS system and a structured power distribution architecture is the correct approach for enterprise critical power design.
Frequently Asked Questions
Q: What is the total energy capacity of the LIBSESMG13UL?
A: The LIBSESMG13UL contains 13 battery modules, each rated at 2.04 kWh, for a total energy capacity of 26.52 kWh. The cabinet is also rated at 67 Ah. Actual runtime depends on your UPS load — consult the Galaxy UPS runtime curves at your specific load percentage.
Q: Is the LIBSESMG13UL compatible with all APC Galaxy UPS models?
A: The LIBSESMG13UL is designed for APC Galaxy series UPS systems, but compatibility is model-specific. Not all Galaxy UPS units support external Li-ion battery cabinets, and maximum cabinet count per UPS string varies. Verify compatibility against your specific Galaxy UPS model's battery configuration documentation before ordering.
Q: What operating temperature is required for the LIBSESMG13UL?
A: The defined operating temperature range is 18°C to 28°C (approximately 64°F to 82°F). This is a narrower range than typical VRLA battery cabinets. Your UPS room HVAC must maintain this range for rated capacity and expected service life.
Q: How heavy is the LIBSESMG13UL, and what are the floor loading requirements?
A: The packaged shipping weight is 432 kg. Floor loading calculations must account for this before installation — consult a structural engineer for raised-floor environments. The cabinet dimensions are 650 mm wide × 587 mm deep × 1,970 mm tall.
Q: Is the LIBSESMG13UL RoHS compliant?
A: Yes. RoHS compliance is verified for the LIBSESMG13UL. Sustainability compliance documentation is also available for procurement teams with environmental reporting obligations.
Q: Can the LIBSESMG13UL be stored before installation?
A: Yes. The storage temperature range is 0°C to 40°C, which covers standard climate-controlled warehouse conditions. Avoid storing below 0°C or above 40°C to prevent cell damage during staged delivery or pre-cutover holding periods.
The LIBSESMG13UL is a serious piece of critical power infrastructure — 13 Li-ion modules at 2.04 kWh each gives you 26.52 kWh of runtime extension in a single tower cabinet. That is not a number you see in a VRLA external battery string at this footprint, and it is the core reason engineers specify this unit when they need meaningful runtime headroom without expanding their physical UPS row.
Technical Highlights:
- 26.52 kWh Li-Ion Energy: At 13 × 2.04 kWh, this cabinet delivers runtime that VRLA alternatives at comparable dimensions cannot match. For a 100kW load at 50% utilization, the math produces substantially longer hold times — which is the difference between an orderly shutdown and a hard outage on a long utility event.
- 67 Ah Capacity: The 67 Ah rating feeds directly into UPS runtime calculations. Input this figure against your Galaxy UPS discharge curves at your actual operating load percentage — do not assume worst-case; calculate at your real average load for accurate runtime projections.
- 18–28°C Operating Band: Tighter than VRLA, but this is by design. Li-ion cells within this range deliver consistent rated capacity and their full cycle life. HVAC planning for the UPS room is not optional — it is a design requirement for this cabinet to perform as specified.
Deployment Considerations:
- The 432 kg shipping weight demands a floor loading assessment before delivery scheduling — raised-floor data centers especially need structural verification. Coordinate logistics to have the cabinet moved to its final position before unpacking; repositioning a fully loaded Li-ion cabinet after installation is not a field activity.
- The LIBSESMG13UL does not operate as a standalone unit — it requires a compatible Galaxy UPS host for battery management, monitoring, and charge control. Confirm your specific Galaxy UPS model is qualified to accept Li-ion external cabinets and verify the maximum cabinet count per string before sizing your order.
This cabinet is the right specification for a Tier 2 or Tier 3 data center UPS room where extended runtime during grid events is a defined SLA requirement — not a nice-to-have — and where floor space is constrained enough that Li-ion energy density over VRLA makes the design difference.
