APC by Schneider Electric LIBSESMG10UL Galaxy Lithium-Ion Battery Cabinet
Overview
The LIBSESMG10UL is a self-contained lithium-ion battery cabinet engineered for large UPS systems in data centers, critical facilities, and industrial power applications. It integrates 10 Samsung lithium-ion battery modules rated at 2.04 kWh each — totaling 20.4 kWh of usable energy storage — into a single enclosed, powder-coated white steel cabinet. Unlike traditional VRLA (lead-acid) UPS battery expansions that require separate battery management and wiring complexity, this cabinet arrives as a complete assembly: batteries, Battery Management System (BMS), switchgear, power supply, and communication interface are all included. That means fewer field-integration steps and a cleaner, auditable installation for teams facing tight commissioning schedules.
Key Features
- Samsung Lithium-Ion Cells (10 × 2.04 kWh): Samsung-sourced Li-Ion chemistry delivers higher cycle life and better depth-of-discharge tolerance than VRLA equivalents — meaningful when your UPS is tested frequently or operates in environments with frequent utility fluctuations. The 20.4 kWh total gives power architects a meaningful runtime extension for mid- to large-frame UPS systems without stacking multiple separate battery strings.
- Integrated Battery Management System (BMS): The onboard BMS handles cell balancing, state-of-charge reporting, thermal monitoring, and protection against overcharge or deep discharge — functions that would otherwise require an external management layer. This simplifies commissioning and ensures the battery operates within safe parameters without additional field configuration.
- UL 9540A Listed: UL 9540A is the standard for evaluating fire propagation in energy storage systems. Achieving this listing means the cabinet has been tested under fault conditions to confirm fire does not propagate between cells — a requirement increasingly mandated by AHJs (Authorities Having Jurisdiction) for Li-Ion battery installations inside occupied buildings. If your facility has an AHJ that requires UL 9540A compliance before approving a lithium ESS, this cabinet addresses that gate directly.
- Complete Pre-Integrated Assembly: Switchgear, power supply, and communication interface are factory-installed alongside the batteries and BMS. For the installing team, this means the cabinet arrives ready to connect to the host UPS — reducing on-site integration labor and the risk of field wiring errors in a high-energy system.
- Enclosed Battery Cabinet Form Factor — 782.6 lb (355 kg): At nearly 800 lb unpackaged, this is a floor-standing installation requiring advance planning for structural load capacity and rigging. The enclosed cabinet design contains the battery and power electronics in a single footprint (packaged dimensions: 84.6 in H × 47.2 in L × 31.5 in W), which simplifies floor-space planning versus open-rack battery configurations.
- Powder-Coated Steel Enclosure — White Finish: The powder-coated finish provides corrosion resistance for long-term installations in controlled environments. The white color is consistent with data center and critical facility aesthetics where cabinet appearance is part of the design standard.
- Operating Altitude to 9,842 ft (3,000 m): Qualified for operation up to 3,000 m above sea level — relevant for facilities in mountainous regions or high-altitude campuses where standard battery systems may derate or require altitude derating calculations. At sea level to mid-altitude installations, no derating adjustment is needed.
- Storage Temperature 32–104 °F (0–40 °C): The cabinet can be stored within this range without damaging the Li-Ion cells — important for projects where equipment is staged on-site before commissioning, particularly in facilities that may not have HVAC active during construction phases.
Integration and Compatibility
The LIBSESMG10UL is designed for use with compatible APC Galaxy-series UPS systems. The integrated communication interface enables the host UPS to query battery state, health, and remaining runtime — capabilities that depend on the specific Galaxy UPS model being paired. Verify host UPS compatibility with APC's published Galaxy battery expansion compatibility matrix before ordering; this is a special-order item with quoted lead times, so confirming the pairing before purchase avoids costly delays. The cabinet's communication and switchgear interfaces are factory-configured, and field modifications to these components are outside the scope of standard installation.
The LIBSESMG10UL ships with an installation guide. Given the 782.6 lb (355 kg) operating weight and 840 lb (381 kg) packaged weight, site preparation must include floor load verification, a rigging plan, and appropriate lifting equipment. This is not a unit that two technicians can position without mechanical assistance.
Frequently Asked Questions
Q: What UPS systems is the LIBSESMG10UL compatible with?
A: The LIBSESMG10UL is designed for use with compatible APC Galaxy-series UPS systems. Specific host UPS compatibility should be verified against APC's Galaxy battery expansion documentation before ordering, as this is a special-order item.
Q: Is the LIBSESMG10UL UL listed for lithium-ion fire safety?
A: Yes. The LIBSESMG10UL carries a UL 9540A listing, which is the standard for evaluating fire propagation in energy storage systems. This is relevant for installations requiring AHJ approval for Li-Ion battery cabinets inside occupied or commercial buildings.
Q: What is the total energy capacity of the LIBSESMG10UL?
A: The cabinet contains 10 lithium-ion battery modules at 2.04 kWh each, for a total of 20.4 kWh of energy storage capacity.
Q: Who manufactures the battery cells inside the LIBSESMG10UL?
A: The battery cells are manufactured by Samsung. The cabinet integrates Samsung Li-Ion cells along with an onboard Battery Management System (BMS), switchgear, power supply, and communication interface.
Q: What are the floor space and weight requirements for installing the LIBSESMG10UL?
A: The packaged dimensions are 84.6 in H × 47.2 in L × 31.5 in W. The operating weight is 782.6 lb (355 kg) and the packaged weight is 840 lb (381 kg). Floor load capacity, rigging equipment, and mechanical lifting assistance are required for installation.
Q: What is included with the LIBSESMG10UL?
A: The cabinet ships with the batteries, BMS, switchgear, power supply, communication interface, and an installation guide. It is a factory-integrated assembly designed to minimize field wiring and integration work.
The LIBSESMG10UL is the kind of battery cabinet you specify when you need a single, AHJ-approvable Li-Ion ESS solution and don't want to stitch together cells, a BMS, and switchgear from separate vendors on the floor. The 20.4 kWh total capacity (10 × 2.04 kWh Samsung modules) is a meaningful runtime extension for mid-frame Galaxy UPS systems in data centers or industrial critical power environments where VRLA strings are becoming impractical to maintain.
Technical Highlights:
- UL 9540A Listing: This is the compliance gate for Li-Ion battery installations in many jurisdictions — not just a checkbox. The LIBSESMG10UL has passed fire propagation testing under fault conditions, which is what AHJs actually want to see before they sign off on a lithium ESS in a commercial building.
- Integrated BMS with Communication Interface: Factory-installed BMS handles cell balancing and state-of-charge reporting without field configuration. The communication interface allows the host Galaxy UPS to pull runtime and health data — eliminating the need for a separate battery monitoring layer.
- 782.6 lb (355 kg) Operating Weight: Samsung Li-Ion chemistry delivers higher energy density than VRLA, but 355 kg is still a significant floor load. The weight alone drives the site preparation requirements — structural review and mechanical rigging are not optional on this unit.
Deployment Considerations:
- This is a special-order item with quoted lead times — build procurement lead time into your project schedule well before the commissioning date. Last-minute orders on this class of equipment routinely extend project timelines.
- The 840 lb packaged weight and 47.2 in × 31.5 in footprint require advance coordination with facilities for doorway clearance, freight elevator capacity, and floor load approval before the unit ships — not after it arrives on the loading dock.
The LIBSESMG10UL is the right spec for a data center or industrial facility manager deploying or expanding a Galaxy-series UPS installation where a UL 9540A-listed, factory-integrated Li-Ion cabinet is required by the AHJ or the facility's power resilience standards — and where the procurement and site prep timeline can accommodate a special-order lead time.
