Vertiv PBRGXT34X500VA GXT3-4 500VA UPS Replacement Battery
Overview
The Vertiv PBRGXT34X500VA is a replacement battery pack designed for the Liebert GXT3 and GXT4 500VA online double-conversion UPS platforms. When runtime degrades or a battery self-test fails, swapping the battery module — rather than replacing the entire UPS chassis — preserves your capital investment and keeps your critical load protection intact. This is the correct part if you are maintaining a 500VA GXT3 or GXT4 unit and need a factory-matched replacement cell set.
The PBRGXT34X500VA is a hot-swap-compatible module, meaning qualified technicians can replace the battery without powering down the connected load on supported GXT configurations — a meaningful operational advantage in 24/7 security operations centers, server closets, or network edge deployments where any unplanned downtime has real consequences.
Key Features
- Model-Matched Chemistry: Engineered specifically for the GXT3 and GXT4 500VA chassis — voltage, capacity, and form factor are matched at the factory. Using a generic battery risks improper float voltage, shortened service life, or a failed self-test that keeps the UPS in alarm state.
- Hot-Swap Design: On GXT3/GXT4 platforms that support hot-swap battery replacement, the PBRGXT34X500VA can be installed without dropping the protected load. This eliminates the maintenance window requirement for battery service in critical environments.
- Capital Preservation: A UPS chassis — with its inverter, transfer switch, and charger circuitry — typically outlasts two or three battery cycles. Replacing only the battery extends the useful life of the full system without re-validating the entire power protection stack.
- Self-Test Compatibility: The replacement battery supports the GXT3/GXT4 automatic and manual battery self-test routines. After installation, running a self-test confirms the new cells are charged and capacity is within specification before you close out the maintenance ticket.
- Vertiv Sourcing: Sourced factory-new with no grey-market or parallel-import risk — important for UPS batteries where counterfeit or refurbished cells can deliver far less runtime than rated and may not trigger the UPS alarm on failure.
Integration and Compatibility
The PBRGXT34X500VA is compatible with the Vertiv Liebert GXT3 and GXT4 500VA 2U rack/tower UPS models. Confirm your UPS chassis model number before ordering — GXT3/GXT4 units in the 750VA, 1000VA, and higher power ratings use a different battery module. If you are maintaining a mixed fleet of GXT units across multiple power ratings, verify the part number against each chassis individually. For the full range of UPS systems and accessories, including higher-capacity GXT5 platforms and power protection solutions for surveillance and network infrastructure, additional options are available. Integrators maintaining larger deployments should also review network infrastructure planning guides to ensure UPS runtime is sized against actual load.
Frequently Asked Questions
Q: Which UPS models is the PBRGXT34X500VA compatible with?
A: The PBRGXT34X500VA is designed for the Vertiv Liebert GXT3 and GXT4 500VA UPS platforms. It is not compatible with higher-capacity GXT variants (750VA, 1000VA, 1500VA, etc.) or with GXT5-series units, which use different battery modules.
Q: Can the PBRGXT34X500VA be replaced without shutting down the connected load?
A: On GXT3 and GXT4 configurations that support hot-swap battery replacement, yes — the module can be swapped without dropping the protected load. Verify your specific chassis supports this capability before beginning the replacement procedure.
Q: Is this a factory-new battery or a refurbished unit?
A: The PBRGXT34X500VA is factory-new, sourced direct from the manufacturer or US authorized distributor. No refurbished or grey-market cells.
Q: How do I confirm the replacement battery is functioning correctly after installation?
A: Run the GXT3/GXT4 manual battery self-test after the unit has completed its initial charge cycle. A passed self-test confirms the new cells are within capacity specification and the UPS is ready to protect the load.
Q: What is the warranty on the PBRGXT34X500VA?
A: Warranty terms are provided by Vertiv and should be confirmed at time of purchase. Contact our team for SKU-specific warranty documentation.
The PBRGXT34X500VA is the replacement I recommend when a GXT3 or GXT4 500VA unit starts failing its self-test — the chassis on these Liebert platforms regularly outlasts the first battery set by years, so a battery swap is almost always the right call before writing off the UPS entirely. The key detail here is model matching: the GXT3/GXT4 500VA requires this specific module, and substituting an off-brand equivalent is a risk I wouldn't take on a production security or network edge installation.
Technical Highlights:
- Platform-Matched Voltage and Capacity: Factory-matched to the GXT3/GXT4 500VA charger profile — mismatched float voltage from a generic replacement shortens cell life and can produce chronic alarm states that waste technician time.
- Hot-Swap Eligibility: The GXT3/GXT4 platform supports hot-swap battery replacement on qualifying configurations, meaning a maintenance tech can swap the PBRGXT34X500VA mid-shift without scheduling a downtime window.
- Self-Test Protocol Support: After swap and initial charge, the GXT self-test routine will load-test the new cells and confirm rated capacity — gives you a documented baseline for the next service interval.
Deployment Considerations:
- Confirm your chassis model number maps specifically to a 500VA GXT3 or GXT4 before ordering — the GXT product line spans 500VA through 3000VA and each power tier uses a distinct battery module.
- Allow the UPS to complete a full charge cycle (typically 4–8 hours depending on depth of discharge on the old pack) before running the self-test, or the test may report a false low-capacity result.
This part is the right call for facilities teams maintaining an installed base of GXT3/GXT4 500VA units in security head-end rooms, IDF closets, or edge surveillance nodes where the UPS chassis is still serviceable but battery runtime has degraded below acceptable thresholds.
