Vertiv GXT4-9A48BATKIT Internal 48V 9Ah Battery Replacement Kit
Overview
The Vertiv GXT4-9A48BATKIT is the factory-specified internal battery replacement kit for the Liebert GXT4 1.5 kVA and 2 kVA rack/tower UPS models. If you are running a GXT4-1500RT230E or GXT4-2000RT230E and your runtime has degraded or a battery fault indicator has triggered, this is the correct replacement — not a generic cross-reference, not a third-party substitute. Vertiv's own compatibility table maps the GXT4-9A48BATKIT directly and exclusively to these two models in the 48V internal battery configuration.
The kit supplies a single 48V, 9Ah battery assembly. At 9Ah, this matches the original factory capacity, so you restore the UPS to its rated runtime rather than accepting a downgrade. Swapping to a lower-capacity pack — even one that physically fits — reduces backup time and can trigger false battery-health alarms on the GXT4's management interface. Using the specified kit avoids both problems.
Key Features
- 48V / 9Ah Matched Capacity: Restores the GXT4-1500RT230E and GXT4-2000RT230E to their original manufacturer-rated runtime. Mismatched capacity means shorter backup windows and potential battery management errors on the UPS controller.
- Vertiv-Specified Compatibility: Sourced from Vertiv's own compatibility matrix — GXT4-9A48BATKIT (often searched as GXT4 9A48BATKIT) is the only listed internal battery kit for the 1.5 kVA and 2 kVA GXT4 variants. No guesswork on fitment.
- Single-Unit Kit: Ships as one complete battery assembly (1 pc), ready for installation. No additional batteries required for these UPS models.
- Grey Enclosure: Matches the GXT4 chassis color family for clean installation in open racks or data closets where aesthetics matter.
Integration & Compatibility
Verified compatibility per Vertiv's published specification table:
- GXT4-1500RT230E — confirmed compatible, uses GXT4-9A48BATKIT
- GXT4-2000RT230E — confirmed compatible, uses GXT4-9A48BATKIT
If you are running a smaller GXT4 model (700VA or 1000VA), those units require the GXT4-5A48BATKIT — a different 48V kit with 5Ah capacity. If you are running the 3kVA model, that unit requires the GXT4-9A72BATKIT (72V configuration). Do not interchange kits across voltage families; a 48V kit will not function correctly in a 72V or 240V system. Verify your UPS model number on the chassis label before ordering.
Note: This kit is for the GXT4 series. Vertiv's compatibility table also references the Liebert GXT3 platform for the same battery kit, making it a usable replacement across both GXT3 and GXT4 1.5–2 kVA units — confirm with your UPS model label before proceeding.
Frequently Asked Questions
Q: Which UPS models does the GXT4-9A48BATKIT fit?
A: Per Vertiv's published compatibility table, the GXT4-9A48BATKIT is specified for the GXT4-1500RT230E (1.5 kVA) and GXT4-2000RT230E (2 kVA). It is also referenced for the Liebert GXT3 platform in the same 1.5–2 kVA range. Always confirm the model number on your UPS chassis label before installing.
Q: Will this battery kit work in the GXT4-700RT230E or GXT4-1000RT230E?
A: No. Those models use the GXT4-5A48BATKIT (5Ah, 48V). Installing a 9Ah kit where a 5Ah is specified is not recommended and may not fit the internal bay correctly.
Q: What voltage and capacity does the GXT4-9A48BATKIT provide?
A: 48 volts, 9 amp-hours. This matches the factory-original specification for the 1.5 kVA and 2 kVA GXT4 models, restoring rated backup runtime.
Q: How many batteries are included in one kit?
A: One battery assembly per kit (1 pc). This is sufficient for the GXT4-1500RT230E and GXT4-2000RT230E internal battery configuration.
Q: Can I use this kit in a GXT4-3000RT230E?
A: No. The 3 kVA model requires the GXT4-9A72BATKIT, which operates at 72V — a different voltage configuration entirely. Using a 48V kit in a 72V system will result in a fault condition.
The GXT4-9A48BATKIT is a precision-matched replacement — 48V at 9Ah, specified by Vertiv for exactly two UPS models in the GXT4 line. When I see integrators sourcing generic cross-reference batteries for the GXT4-1500RT230E or GXT4-2000RT230E, the most common outcome is a capacity mismatch that leaves runtime 15–30% shorter than the UPS's rated spec, often without any obvious fault indicator until the next power event.
Technical Highlights:
- 48V / 9Ah Rated Capacity: Matches the factory spec for the 1.5 kVA and 2 kVA GXT4 models exactly — you get the full manufacturer-rated runtime back, not an approximation.
- Model-Specific Fitment: Vertiv's compatibility table is unambiguous: GXT4-9A48BATKIT covers GXT4-1500RT230E and GXT4-2000RT230E only. The adjacent 700VA and 1kVA models use a 5Ah kit; the 3kVA steps up to 72V entirely.
- GXT3 Cross-Compatibility: The same kit also covers Liebert GXT3 units in the 1.5–2 kVA range, which is useful if you are maintaining a mixed GXT3/GXT4 install base and want to consolidate your spare parts inventory.
Deployment Considerations:
- Before ordering, pull the model number from the chassis label — not the rack slot label or asset tag. The GXT4 family shares a common form factor across multiple kVA ratings, and the wrong battery kit will not throw an obvious mechanical mismatch.
- Voltage family matters absolutely: this is a 48V kit. The GXT4-3000RT230E and larger models use 72V or 240V configurations. Cross-voltage installation will result in a fault state; the UPS will not simply derate and continue operating.
This kit is the right call for facilities teams maintaining GXT4-1500RT230E or GXT4-2000RT230E units in server closets, branch office comms rooms, or light-industrial control environments where scheduled battery replacement is part of a preventive maintenance cycle.
