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Description
Vertiv Liebert GXT5 Lithium-Ion Online UPS 8000VA/8000W 120V/208V Rack/Tower UPSPower resilience for mission critical IT operations begins with the Vertiv Liebert GXT5 Lithium Ion Online UPS. Designed to protect servers, storage, network gear, and edge devices, this high capacity online UPS delivers pristine power conditioning and dependable battery backup when outages, sags, or disturbances threaten uptime. With a robust 8000VA 8000W rating and the flexibility to deploy as a rack mount or tower unit, the GXT5 is engineered for
Power resilience for mission-critical IT operations begins with the Vertiv Liebert GXT5 Lithium-Ion Online UPS. Designed to protect servers, storage, network gear, and edge devices, this high-capacity online UPS delivers pristine power conditioning and dependable battery backup when outages, sags, or disturbances threaten uptime. With a robust 8000VA / 8000W rating and the flexibility to deploy as a rack-mount or tower unit, the GXT5 is engineered for data centers, network closets, and edge environments where space is at a premium and reliability is non-negotiable. The lithium-ion battery chemistry provides longer life, lighter weight, and faster recharge—reducing maintenance downtime and lowering total cost of ownership while keeping critical workloads online and recoverable. Whether you manage a traditional data center, a distributed edge infrastructure, or a high-density virtualization environment, the Liebert GXT5 offers scalable runtime, advanced monitoring, and superior power conditioning to protect your most valuable assets.
- Uninterrupted power for critical IT workloads: The Liebert GXT5 uses a true online, double-conversion topology to deliver a clean, regulated output regardless of input conditions. It isolates sensitive servers, virtualization hosts, storage arrays, and network devices from utility transients, frequency variations, and momentary outages. With automatic voltage regulation (AVR) and precise voltage control, this UPS maintains stable voltage for rapid, safe shutdowns and consistent application performance, even during grid disturbances. Its design supports edge deployments and small-to-mid size data centers where uptime is essential and downtime is not an option.
- Lithium-Ion technology advantages: The GXT5 leverages modern lithium-ion cells to extend battery life, reduce weight, and speed recharge times after a discharge. This translates into longer calendar life and higher cycle tolerance compared with traditional lead-acid solutions, meaning fewer battery replacements and reduced maintenance windows. The lithium-based chemistry also helps the unit withstand frequent cycling and helps sustain performance in environments with variable temperatures. Operators gain a lower total cost of ownership through fewer replacements, easier serviceability, and more reliable protection during extended outages.
- Flexible deployment for space-constrained environments: This high-capacity UPS is designed for both rack-mount and tower installations, giving you deployment flexibility in data centers, network closets, and edge sites. With a 19-inch rack footprint and adaptable mounting hardware, the Liebert GXT5 fits standard data-center racks while also serving as a stable tower in rooms with limited rack space. The compact footprint, combined with advanced internal cooling, helps you optimize floor space without sacrificing uptime or performance. For edge locations or distributed IT, the ability to position the unit where power disturbances are most likely to occur ensures maximum protection exactly where it’s needed.
- Advanced power conditioning and protection: The GXT5 provides precise output regulation and robust filtration to guard against voltage sags, surges, harmonics, and waveform distortion. It delivers clean, steady 120/208 V output, maintaining waveform integrity for sensitive equipment and preventing data loss during fluctuations. The UPS also offers protection for connected equipment from abnormal conditions, including short circuits and high-frequency noise, ensuring that critical devices experience minimal electrical stress. In addition, the unit is built to minimize data-corrupting surges and provides reliable shutdown signaling to prevent abrupt outages from impacting running applications.
- Management, monitoring, and energy efficiency: The Liebert GXT5 includes built-in management options and interfaces for remote visibility and control. With USB and network-capable interfaces, administrators can monitor runtime, battery health, load, and event history through a web interface or SNMP-enabled dashboards. Energy-efficiency features help lower operating costs, including optimized efficiency in online operation and intelligent battery management to preserve capacity. Remote monitoring, alerting, and firmware update capabilities simplify maintenance and extend protection across distributed IT environments, making the GXT5 a practical choice for IT teams seeking proactive power management.
Technical Details of Vertiv Liebert GXT5 Lithium-Ion Online UPS 8000VA/8000W 120V/208V Rack/Tower UPS
- Capacity: 8000 VA / 8000 W
- Input voltage: 120 V / 208 V (selectable)
- Output voltage: 120/208 V with AVR and power conditioning
- Form factor: Rack-mountable or tower enclosure
- Battery technology: Lithium-Ion with extended life and improved cycle tolerance
How to install Vertiv Liebert GXT5 Lithium-Ion Online UPS 8000VA/8000W 120V/208V Rack/Tower UPS
- Plan your installation by selecting a rack-mount or tower configuration based on available space and access for maintenance. Ensure adequate ventilation and clearance around the unit for heat dissipation and serviceability.
- Prepare the installation site with a stable surface or rack structure rated for the UPS weight. If rack mounting, use the included hardware and ensure proper alignment within a standard 19-inch rack. If a tower setup is chosen, position the UPS on a solid, level surface to minimize vibration and movement during operation.
- Connect the input power to a dedicated circuit that matches the unit’s voltage setting (120 V or 208 V) and verify proper grounding. Use appropriate circuit protection in accordance with local electrical codes to ensure safe operation and easy access for maintenance.
- Connect critical IT loads to the UPS output outlets. If you plan to deploy with a network management card or remote monitoring capability, install the appropriate interface and connect it to your management network according to the user manual. Verify that connected devices are within the UPS’s load capacity to maintain generous headroom for peak demand.
- Power on the unit and run the built-in self-test to verify operational readiness. Configure basic settings such as alarm thresholds, runtime planning, notification methods, and shutdown policies. Schedule regular battery health checks and firmware updates to keep protection current with changing IT workloads.
- Document the installation, including input/output configurations, management interface access credentials, and maintenance windows. Establish a routine that includes periodic self-tests and load checks to ensure the GXT5 continues to deliver reliable power conditioning for your critical equipment.
Frequently asked questions
- Q: What does lithium-ion battery mean for the Liebert GXT5 in terms of life and maintenance? A: Lithium-Ion cells offer longer calendar life and higher cycle tolerance than traditional lead-acid batteries, which reduces maintenance intervals and replacement frequency while sustaining performance across many charge-discharge cycles.
- Q: Can the Liebert GXT5 operate at both 120V and 208V? A: Yes. The unit supports dual voltage input configurations, providing regulated 120/208 V output to match local power distribution and IT equipment requirements.
- Q: Is this UPS suitable for edge deployments and small data centers? A: Absolutely. Its compact rack-tower form factor, high capacity, and advanced power conditioning make it ideal for edge computing, network closets, and compact data centers that demand reliable power protection.
- Q: What management options are available for monitoring and control? A: The GXT5 offers USB and network interfaces, along with web-based dashboards and SNMP compatibility for remote monitoring, alerting, and policy-based shutdowns.
- Q: How long can it run during a power outage? A: Runtime depends on the load and configured battery capacity; consult the product’s runtime charts for load-based estimates and consider additional external battery modules if longer outages are anticipated.
- Q: How should I maintain and test the unit to ensure readiness? A: Follow the user manual’s maintenance schedule, perform regular self-tests, verify battery health, and keep firmware updated to preserve peak protection and reliability.
Shipping Notes
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Exchange/Return Notes
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4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
These are must haves for dog owners!
Size: Large, Color: Pink
These things have saved my sanity! I have two dogs and we use these at least two to three times per week. They are high quality and last thru heavy chewers. We spread peanut butter inside for a quick treat when clipping nails, or make our own mix of Greek yogurt, dry oatmeal, diced carrots, a little pumpkin, and a bit of diced apple, mix it up and freeze it in the Pupsicle mold. That way we have a bunch ready to go and aren’t buying expensive refills. The colors are adorable, the pupsicle is durable, and the dogs LOVE them. FYI - it’s a good idea to use a little olive or avalado oil on the threads when closing them up - it makes life so much easier when screwing then on and off. We throw ours into the dishwasher.
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Reviewed in the United States on June 6, 2026
★★★★★ 5
Like unto the Holy Grail of food toys. [I recommend buying the separate treat mold, too.]
Size: Large, Color: Green
So far, I have no complaints. I can see that this toy might not work well for some combinations of dogs and people, but for my two current dogs (blue heeler and small terrier), this thing, plus the treat mold, is GREAT!
I love that the dogs get it more or less fully emptied, and it is washable. I love that I can pre-prepare a whole bunch of frozen fillings by using the treat mold (sold separately).
Yes, I agree that this is a very expensive item, especially if you buy the treat mold along with the toy. I bought two toys at a very reduced price on Prime day, also bought the treat mold at full price, and consider the combined purchase a great value at this cost. The current price (for the toy) is comparable to the cost of an extra-large Toppl, and I've seen it at a price similar to the current cost of a large Toppl. I checked the current price of the XXL "extreme" Kong I needed to use for one dog, and the current price on a different web site is almost the same as the Woof Pupsicle.
To answer questions and issues I've seen mentioned...
* My terrier weighs 16 pounds and uses the large toy with no problem. Possibly it is minimally less thoroughly cleaned out, but I'm not positive about that. My only warning would be that you ought to keep track of calories and/or what you put in it because you could potentially give a small dog way too many empty calories from "junk food."
* The toy is still usable without the treat mold. Just fill up the solid half of the toy and stick it in the freezer overnight, same as you would do with a Kong, except it takes up less space.
* Do introduce it properly, by initially giving it with NON-frozen and sticky food in it. An even more slow, careful, step-wise introduction may be necessary if your dog is a destructo-dog.
* The terrier takes about 20 minutes to empty it of frozen canned dog food. That's non-trivial, and I'm not sure why people are complaining. The heeler takes less time (maybe 15 minutes?), but it's still an amount of time that is helpful for me, and this licking activity seems to be especially calming for her (as compared to using the food puzzle toys with kibble).
* It initially was extremely difficult to open and close the thing. I was best able to do it with a "light" touch, not pulling and making sure not to press the two surfaces together. After not very long, it became much easier. I didn't need to use oil. If you have trouble getting it closed, it became a lot easier after the solid part was frozen (while the vented part stayed at room temperature).
* I agree with others that a larger version might be nice, but a larger version might make dogs more likely to destroy the toy in place of emptying it by focused licking.
* I'm not sure that any of these toys are truly indestructible. People are mentioning Kongs. Well, my Kongs have required periodic replacement. They have tooth marks and eventually get "modified" to where pieces might get torn off and consumed. For one dog, I had to upgrade to the XXL-size Extreme (black) version, and she also put tooth marks in that.
I own a fortune's worth of Kongs, Toppls, and a couple similar food toys, and they all have their issues. They have holes in them that allow liquid to immediately come out (before freezing occurs). They are bulky and use up a lot of space in the freezer, and the unusual shapes make them non-stackable. For me, Kong toys are time-consuming to fill and difficult to clean. My dogs couldn't get the very end cleaned out without throwing the Kong around (making a big mess), and even then it wasn't fully clean. Some did end up with mold in that part of them. [It looks like new inventions, like plugs (or something like that), may solve some of the problems; I didn't have those.]
I mention the other toys only to say that this unique brilliant toy has seeming solved all those problems, and my dogs truly LOVE this toy as well. Be assured, I will update this review if anything changes.
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Reviewed in the United States on July 24, 2023
★★★★★ 4
Perfect for Our Nervous Rescue Dog
Size: Large, Color: Green
First Impressions
I bought the Pupsicle for our new rescue dog who was very nervous whenever we had to leave the house. Right out of the box it felt sturdy and well-made, and I liked that it wasn’t just another cheap chew toy.
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Setup & Ease of Use
I went with the premade treat inserts to start, which made it super simple — just pop one in and hand it over. It’s also dishwasher-safe, which is a huge win for me since I don’t want to deal with scrubbing peanut butter out of toys.
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Performance in Real Life
She loves it. The Pupsicle has kept her occupied and calm, which has really helped her acclimate to her new home. Instead of pacing or whining when we leave, she settles down with this toy and stays busy.
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Pros & Cons
Pros:
• Helps reduce anxiety for nervous dogs
• Very durable and solid
• Easy to clean (dishwasher safe)
• Premade inserts make it effortless
Cons:
• On the heavier side, so probably best for medium+ dogs
• Inserts are convenient but add a little extra cost
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Who It’s For
Perfect for new dog owners, rescues, or anyone with a dog who needs a healthy distraction when left alone.
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Final Verdict
The Pupsicle has made a noticeable difference for our rescue pup. It’s durable, easy to use, and has genuinely helped her feel more at ease in her new environment. Highly recommend.
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Reviewed in the United States on August 24, 2025
★★★★★ 3
Dogs love it, hard to open and close
Size: Large, Color: Pink, Size: Large, Color: Pink
My dogs love this toy. It keeps them entertained a long time. Great calming toy for when you leave the house. Only issues is it is very hard to open and close. One of mine I had three people try to open and after fighting with it for about an hour I finally got it opened. Got 2, one a blue and pink one for each of my dogs. The blue is easier than the pink but still hard to do. Just not as bad. Can't close the pink all the way because it is so hard to close. The dog that uses it has trouble getting the stuff out of it. But it doesn't stop her from trying for hours to do so. Does get some teeth marks on it as well if they are aggressive chewer. Tried multiple eatable lubricating substances to try to make it easier but so far nothing fully worked. Aloe Vera has worked the best so far, but not great.
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Reviewed in the United States on February 17, 2026
★★★★★ 3
Good in theory, but didn’t fully deliver
Size: Large, Color: Green, Size: Large, Color: Green
My dog falls right on the size cutoff between the small and large Pupsicle. I initially ordered the large since he’s a strong chewer, but he had trouble getting everything out, so I ended up trying the small as well.
There are definitely some positives. I think the design is better than a Kong. It stays upright, which makes it less messy. I also really like the mold for making the inserts, instead of having to fill the toy itself and freeze it.
That said, there are two major design issues that impacted my experience. First, the all-rubber construction creates a lot of friction when screwing the bottom into the base, especially after repeated use. It gradually became harder to open, to the point where I was using coconut or avocado oil to try to loosen the threads. At one point I even needed a wrench and pliers just to get a better grip.
Second, while it’s marketed as dishwasher safe (which I was excited about for cleaning), it seems to dry out the rubber and makes the threading issue worse over time.
Unfortunately, mine is now permanently stuck shut and no longer usable. Overall, I like the concept, but the durability and usability issues make this a 3-star product for me. I’d recommend it with caution, especially if you plan to wash it frequently.
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Reviewed in the United States on April 23, 2026