- Lithium-ion external battery pack designed for APC Smart-UPS Ultra SRTL 5kVA/5kW UPS units
- 2U rack/tower convertible form factor — mounts directly below or adjacent to the SRTL 5kW UPS
- Up to 5 SRTL180RM2UBP units can be chained for significantly extended runtime
- Embedded Battery Management System (BMS) monitors state of charge and health at cell, module, and cabinet level
- 5-year warranty on battery pack and lithium-ion cells
Product Highlights
Description
APC Smart-UPS Ultra Li-Ion External Battery Pack — SRTL180RM2UBP (180V, 2U)
The SRTL180RM2UBP is the lithium-ion external battery pack designed to extend runtime on APC Smart-UPS Ultra SRTL 5kVA (5kW) systems. Where lead-acid external battery packs are bulky, heavy, and subject to capacity degradation within 3–5 years, this lithium-ion XBP delivers high energy density in a compact 2U chassis — and maintains consistent capacity over a battery lifespan of up to 10 years. Up to five units can be cascaded to a single SRTL 5kW UPS, providing the extended runtime buffer needed for data centers, healthcare facilities, and mission-critical edge deployments.
Why Lithium-Ion vs. Lead-Acid External Battery Packs?
| Factor | Lead-Acid XBP | Li-Ion XBP (SRTL180RM2UBP) |
|---|---|---|
| Battery Lifespan | 3–5 years | Up to 10 years |
| Weight | Significantly heavier per kWh | Up to 40–50% lighter |
| Recharge Time | 4–8 hours | Approximately 3 hours |
| Replacement Cycles (10 years) | 2–3 times | 0–1 times |
| BMS Monitoring | Limited or none | Cell-level, module-level, cabinet-level |
Key Features
- Lithium-ion chemistry with embedded BMS — monitors state of charge and battery health continuously
- 2U rack/tower convertible chassis — installs directly with compatible SRTL 5kW rack deployment
- Stack up to 5 units per SRTL 5kW UPS for extended runtime to meet site-specific autonomy requirements
- 5-year warranty on the battery pack and cells — aligned with SRTL UPS warranty
- Hot-swap capable — battery pack replacement without UPS shutdown (when UPS supports it)
Technical Specifications
| Specification | Detail |
|---|---|
| Compatible UPS | SRTL 5kVA/5kW Smart-UPS Ultra models |
| Battery Type | Lithium-ion |
| Nominal Voltage | 180V DC |
| Form Factor | 2U Rack/Tower convertible |
| Max Units Per UPS | 5 (cascaded) |
| Dimensions (H x W x D) | 86mm x 432mm x 724mm |
| Weight | 32.4 kg |
| Warranty | 5 years repair or replace |
Ideal Applications and Industries
The SRTL180RM2UBP is the right XBP for any environment where extended runtime is a mission requirement and frequent battery replacement is operationally unacceptable. Healthcare facilities and imaging centers need runtime buffers that outlast power restoration windows. Colocation facilities and managed service providers running SRTL 5kW UPS systems across multiple racks benefit from the reduced battery replacement cycles and the BMS data that integrates with EcoStruxure IT for centralized fleet management. Remote or edge deployments — manufacturing plants, government facilities, utility substations — where on-site maintenance resources are limited gain the most from the 10-year lithium-ion lifespan.
Reduce Battery Maintenance Across Your Fleet
Questyme works with organizations managing multiple UPS systems across single or multi-site environments. We help you calculate the runtime you need, determine how many SRTL180RM2UBP units to deploy per UPS, and plan battery replacement schedules that minimize both cost and operational disruption. If you are evaluating total cost of ownership between lead-acid and lithium-ion extended battery deployments, contact Questyme for a TCO analysis tailored to your environment.
Specifications
Overview
Model
APC Smart-UPS Ultra On-Line Lithium ion XBP 180V 2U Rack/Tower
Main
Battery Type
Li-Ion (Lithium Ion)
Removable Battery
User replaceable
Physical
Color
Silver grey
Mounting Mode
Rack-mounted with kit, Tower-mounted with kit
Product Line
SMART-UPS ON-LINE
Shipping Dimensions
Height: 15.43Width: 23.03Length: 38.74
Shipping Weight
92.6 lb
UPC Code
731304437024
Lead time
Usually in Stock
Provided Equipment
Rack Mounting brackets
Vertical mounting brackets
Vertical mounting brackets
Product Certifications
UL 1973
Environmental
Packaging Made with Recycled Cardboard
Yes
Packaging without Single Use Plastics
No
Ambient Air Temperature for Operation
32-104 ?F (0-40 ?C)
Ambient Air Temperature for Storage
5-113 ?F (-15-45 ?C)
Relative Humidity
0-95 % non-condensing
Storage Relative Humidity
0-95 % non-condensing
Operating Altitude
0-10000 ft
Storage Altitude
0-50000 ft (0.0000000000-15240.0000000000 m)
Packaging / Certifications
Unit Type of Package 1
PCE
Packaging Made with Recycled Cardboard
Yes
Packaging without Single Use Plastics
No
Take-back
No
EU RoHS Directive
Pro-active compliance (Product out of EU RoHS legal scope)