Vertiv EXS External Battery Cabinet 37.5AH 1 String Vrla - EXSV-EBC1

Vertiv EXSV-EBC1 External Battery Cabinet for Liebert EXS UPS

Overview

The Vertiv EXSV-EBC1 is a dedicated external battery cabinet engineered to extend the runtime of the Vertiv Liebert EXS V-Model UPS line. Pairing a sealed, valve-regulated lead acid (VRLA) chemistry with a 37,500mAh capacity in a single string configuration, the EXSV-EBC1 delivers approximately 0.68 hours of runtime at full load — giving operations teams a meaningful window to execute a controlled shutdown or bridge a utility interruption without relying on generator transfer alone.

This cabinet is built specifically for environments where the base Liebert EXS runtime falls short of the facility's recovery time objective. If your UPS sits in a data closet, security operations center, or remote surveillance hub where extended hold time is a design requirement, the EXSV-EBC1 is the purpose-built expansion path — not a workaround.

Key Features

• 37,500mAh VRLA Battery String: The sealed valve-regulated lead acid design eliminates the need for watering maintenance and contains no free electrolyte, which matters for installations in enclosed equipment rooms, wall-mount closets, or any space without floor drain access. You get industrial-grade chemistry without the maintenance overhead of flooded cells.
• 0.68-Hour Full-Load Runtime: At full rated load, the EXSV-EBC1 (often searched as EXSV EBC1) adds roughly 41 minutes of protected runtime. In practice, most loads run below full capacity, so real-world runtime in lightly loaded deployments will exceed this figure — plan your load calculations accordingly using the base UPS's runtime curves.
• Single-String Architecture: The single-battery-string configuration keeps the cabinet manageable in size and simplifies battery replacement at end-of-service-life. There's no need to coordinate multi-string equalization or complex balancing — the replacement cycle is straightforward for a facilities team.
• Proprietary Battery Form Factor: The EXSV-EBC1 uses a proprietary battery size matched to the Liebert EXS cabinet form factor. This ensures dimensional and electrical compatibility but means you'll source replacements through the Vertiv channel — budget accordingly for future battery refresh cycles.
• RoHS Compliance: The cabinet meets Restriction of Hazardous Substances (RoHS) requirements, which is relevant for deployments in the EU or for organizations with environmental procurement policies. This is a verified compliance designation for this SKU, not a blanket family claim.
• Liebert EXS V-Model Compatibility: The EXSV-EBC1 is designed exclusively for the Vertiv Liebert EXS V-Model UPS platform. It integrates at the cabinet level — no external battery management unit or separate charge controller is required. The host UPS handles charge management through the connection interface.

Integration & Compatibility

The EXSV-EBC1 connects to the Vertiv Liebert EXS V-Model UPS family. Before ordering, confirm your specific EXS model variant supports external battery cabinet expansion — not every EXS configuration includes the EBC interconnect port. Consult the EXS model's technical documentation to verify the number of supported external battery cabinets per unit, as stacking multiple EBC units may be possible depending on UPS output rating and total load.

For power protection planning in multi-camera or server-dense deployments, calculate your total load in watts, divide by the UPS runtime curve at that wattage, and determine how many additional AH of capacity the EXSV-EBC1 provides to close the gap between base runtime and your target hold time. The 37,500mAh rating is at the battery nominal voltage — work with the EXS system voltage (consult the EXS datasheet) to convert to watt-hours for accurate runtime modeling.

If you're deploying the EXSV-EBC1 alongside a network video recorder or security operations infrastructure, match the total protected load carefully — overloading the UPS beyond its rated output will reduce runtime below the 0.68-hour figure regardless of battery capacity.

Frequently Asked Questions

Q: Is the EXSV-EBC1 compatible with all Vertiv Liebert UPS models?

A: No. The EXSV-EBC1 is specifically designed for the Vertiv Liebert EXS V-Model UPS. It is not a universal battery cabinet and should not be used with other Vertiv UPS families without confirming compatibility through Vertiv's technical documentation for your specific EXS model.

Q: What is the battery chemistry used in the EXSV-EBC1?

A: The EXSV-EBC1 uses valve-regulated lead acid (VRLA) sealed batteries. VRLA chemistry is maintenance-free — no watering required — and contains no free electrolyte, making it suitable for installation in enclosed or indoor equipment spaces.

Q: What runtime can I expect from the EXSV-EBC1?

A: At full rated load, the EXSV-EBC1 provides approximately 0.68 hours (about 41 minutes) of additional runtime. Actual runtime will be longer if your connected load is below the UPS's full rated output, which is common in real deployments. Use your UPS's runtime curve at your actual wattage for accurate planning.

Q: Can I use multiple EXSV-EBC1 cabinets with a single Liebert EXS UPS?

A: The ability to daisy-chain or stack multiple external battery cabinets depends on the specific Liebert EXS model and its rated output. Consult the EXS model's technical documentation to confirm how many EBC units are supported per UPS before ordering additional cabinets.

Q: Does the EXSV-EBC1 meet RoHS requirements?

A: Yes. The EXSV-EBC1 is listed as compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for deployments subject to EU environmental compliance requirements or organizational procurement policies that mandate RoHS-compliant hardware.

Q: What battery size does the EXSV-EBC1 use for replacements?

A: The EXSV-EBC1 uses a proprietary battery size specific to the Liebert EXS cabinet. Standard off-the-shelf replacement batteries will not fit. Source replacement batteries through the Vertiv supply chain to ensure dimensional and electrical compatibility.

Marty Allison

The EXSV-EBC1 is a single-purpose expansion unit — it adds 37,500mAh of VRLA capacity to the Liebert EXS V-Model UPS, and that's exactly what it should do. Where I see integrators run into trouble is assuming this cabinet is a generic runtime extender. It's not. The EXS pairing is hard, and if you're trying to back a different UPS platform, you're looking at the wrong SKU entirely.

Technical Highlights:

• 37,500mAh Capacity: At full load, this translates to roughly 41 minutes of added hold time. Most real-world deployments run 40–70% load, so expect actual runtime to land noticeably above the datasheet figure — but do the math with your actual wattage, not the worst-case number.
• VRLA Sealed Chemistry: No electrolyte spillage risk, no maintenance watering schedule. For equipment rooms without secondary containment, this is the right battery type — flooded lead acid belongs in a battery room, not a security closet.
• RoHS Compliance: Verified for this SKU. Relevant for any organization operating under EU RoHS procurement requirements or pursuing environmental compliance certifications at the facility level.

Deployment Considerations:

• Confirm your specific Liebert EXS variant has an external battery cabinet interconnect port before ordering. Not every EXS configuration supports EBC expansion, and the interconnect interface is model-specific.
• The proprietary battery form factor means end-of-life replacement requires Vertiv-sourced cells. Build this into your lifecycle cost model — generic 12V SLA batteries of similar AH ratings will not physically fit the cabinet.

The EXSV-EBC1 is the right call for security operations centers and surveillance infrastructure rooms where the base Liebert EXS runtime is insufficient to cover the facility's generator transfer time plus graceful shutdown window — particularly in single-UPS deployments where a second UPS isn't in the budget but extended hold time is non-negotiable.