Vertiv Replacement Battery Kit for Vertiv Liebert PS750RT3 and PS1000RT3 UPS (PS3-72-36VBKIT)

The Vertiv Replacement Battery Kit PS3-72-36VBKIT is purpose-built to restore and extend the runtime of your Vertiv Liebert PS750RT3 750VA UPS and PS1000RT3 1000VA UPS. This hot-swappable, user-replaceable battery kit is designed for fast, safe maintenance so you can protect critical equipment, data, and operations with minimal downtime. Engineered by Vertiv to maintain compatibility and reliability, this kit helps you keep your backup power system performing at its best when it matters most. If your Liebert UPS is showing signs of aging or you’re planning a proactive refresh, this battery kit is a practical, cost-efficient upgrade path that aligns with enterprise-grade reliability and serviceability.

• Compatibility and coverage – specifically designed for Vertiv Liebert PS750RT3 (750VA) and PS1000RT3 (1000VA) UPS models, ensuring a seamless replacement path without compatibility concerns.
• Hot-swappable, user-replaceable – batteries can be swapped without fully powering down the UPS in supported configurations, minimizing downtime and keeping critical services online during maintenance.
• Restore runtime and reliability – replacing aging cells with fresh modules helps restore the original runtime capacity, improving surge protection, load handling, and overall reliability of the backup power system.
• Easy, safe installation – the kit is designed for straightforward field replacement with clear installation steps, minimal tools, and maintenance-friendly serviceability.
• Safety-first design – built with Valve Regulated Lead Acid (VRLA) battery technology and manufacturer-recommended safety guidelines to support compliant, safe handling and disposal of old batteries.

Technical Details of Vertiv Replacement Battery Kit for Vertiv Liebert PS750RT3 and PS1000RT3 UPS (PS3-72-36VBKIT)

• Part number – PS3-72-36VBKIT
• Compatibility – Vertiv Liebert PS750RT3 and PS1000RT3 UPS models
• Battery type – Valve Regulated Lead Acid (VRLA) battery modules
• Configuration – hot-swappable replacement battery kit intended for field service
• Includes – replacement battery modules and installation hardware as specified by Vertiv (kit contents may vary by region)
• Reference – SKU/UPC information available in the official ec.synnex listing for current identification

How to install Vertiv Replacement Battery Kit for Vertiv Liebert PS750RT3 and PS1000RT3 UPS

Before you begin any work, review the Liebert PS750RT3 and PS1000RT3 user manuals for safety guidance and recommended battery service procedures. Always observe local regulations for handling and disposing of lead-acid batteries. Ensure you have the correct replacement kit (PS3-72-36VBKIT) and any required tools on hand before starting the installation.

• Step 1 — Safety and preparation — power down the equipment you are protecting and isolate the UPS from the electrical supply if the procedure requires. Wear appropriate personal protective equipment, including safety glasses and insulated gloves. Clear the work area and avoid contact with terminals or connectors that may carry stored energy.
• Step 2 — Access and inspection — remove the UPS access panel following the manufacturer’s instructions to expose the battery compartment. Visually inspect the existing battery modules, cables, and connectors for signs of damage, corrosion, or loose connections. If you encounter any damaged components, do not proceed with the replacement until they are addressed.
• Step 3 — Remove existing batteries — carefully disconnect and remove the old battery modules one at a time. Label any cables if necessary to ensure correct reconnection. Place removed modules on a non-conductive surface away from sources of heat or moisture.
• Step 4 — Install new battery kit — align the new replacement battery modules within the battery compartment. Connect the cables and connectors in the same configuration as the original setup. Ensure all connections are secure and that there are no loose wires or pinched cables. Recheck that the modules sit firmly in their slots and that any locking mechanisms are engaged.
• Step 5 — Reassemble and verify — reattach the battery access panel and reseal the enclosure as required by the device. Restore power to the UPS and perform a built-in self-test or battery test sequence as recommended by Vertiv. Monitor the unit for fault codes and verify that the UPS reports normal operation and expected run-time under load.
• Step 6 — documentation and disposal — record the service activity, noting the replacement date, kit part numbers, and any observed performance changes. Dispose of the old batteries in accordance with local regulations or through the manufacturer’s battery recycling program.

Frequently asked questions

• Q: What does the Vertiv PS3-72-36VBKIT include?

  A: The PS3-72-36VBKIT is a replacement battery kit designed for Vertiv Liebert PS750RT3 and PS1000RT3 UPS units. It typically includes replacement battery modules and installation hardware, enabling field service of the UPS’s battery system. Packaging and contents may vary by region, so always refer to the latest manufacturer documentation or the ec.synnex listing for precise inclusions.

• Q: Can I perform the battery replacement myself?

  A: Yes. The kit is designed for user replacement with hot-swappable batteries in compatible configurations. However, for safety and to ensure proper performance, follow the included installation instructions closely and power down all equipment as recommended. If you are unsure, consult Vertiv support or a qualified technician.

• Q: Will replacing the batteries restore the original runtime?

  A: Replacing aging or degraded batteries with fresh modules can restore much of the original runtime capacity, but actual runtime will depend on the connected load, ambient temperature, and overall condition of the UPS. A battery self-test can help verify restored performance.

• Q: Is VRLA technology used in these replacement batteries?

  A: The kit utilizes Valve Regulated Lead Acid (VRLA) battery modules, which are common for standby backup power systems because of their reliability, sealed construction, and maintenance-friendly design.

• Q: How should I dispose of old batteries?

  A: Follow local regulations for lead-acid battery disposal. Many regions require recycling through certified facilities or return-to-vendor programs. Check with Vertiv or the supplier for approved disposal options in your area.