Vertiv Liebert PowerUPS 400VA Lithium-Ion vs Vertiv 1350VA 850W Line Interactive (2026): Key Differences
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This guide compares the vertiv liebert powerups 400va lithium ion vs 1350va 850w line models. Both units provide essential power protection for your equipment. They share a black color and desktop form factor. The main difference lies in their capacity and battery technology. One uses long-life lithium-ion cells for smaller loads. The other offers higher wattage with standard line-interactive topology. You must choose based on your specific power needs.
Key differences
| Aspect | Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS | Vertiv 1350VA 850W Line Interactive UPS |
|---|---|---|
| Apparent Power | 400VA | 1350VA |
| Output Wattage | not listed | 850W |
| Battery Chemistry | Lithium-Ion | not listed |
| UPS Topology | not listed | Line Interactive |
| Weight | 3.9 pounds | 22.2 pounds |
Which one should you choose?
Choose Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS if
- You need a compact unit for low-power devices like routers.
- You want a battery that lasts up to three times longer than lead-acid.
- You operate in environments with high temperatures up to 104°F.
Choose Vertiv 1350VA 850W Line Interactive UPS if
- You need to power heavier loads requiring 850 watts.
- You want multiple outlets for several connected devices.
- You prefer a line-interactive design with simulated sine wave output.
Verdict: Choose the 400VA Lithium-Ion model if you prioritize long battery life and space efficiency for small electronics. Select the 1350VA Line Interactive unit if you require higher power capacity for more demanding equipment. Your choice depends entirely on your wattage requirements and desired battery maintenance schedule.
Capacity and Battery Tech Compared
Power Capacity
The Vertiv 1350VA 850W Line Interactive UPS offers significantly higher capacity than the Vertiv Liebert PowerUPS 400VA Lithium-Ion. The larger unit provides 1350VA and 850W of output power, making it suitable for more demanding equipment loads. In contrast, the Liebert model is rated at only 400VA. This lower rating limits the number of devices or the total wattage you can connect. If you need to power a high-end desktop PC or multiple monitors, the 1350VA model is the necessary choice. The 400VA unit is better suited for small devices like routers or small office computers. You must match your total wattage needs to the correct unit.
Battery Chemistry
The two units use fundamentally different battery technologies. The Vertiv Liebert PowerUPS 400VA Lithium-Ion utilizes Lithium-Ion chemistry. This type of battery typically offers a longer lifespan and better performance in high-temperature environments compared to traditional lead-acid options. The Vertiv 1350VA 850W Line Interactive UPS does not specify its battery chemistry in the provided data, though it features user-replaceable batteries. Lithium-Ion batteries often require less maintenance and last longer than standard VRLA batteries. If long-term battery life and reduced replacement frequency are priorities, the Lithium-Ion option in the Liebert model has a clear advantage. However, the 1350VA unit may be easier to maintain if standard batteries are used.
Topology Type
The Vertiv 1350VA 850W Line Interactive UPS explicitly uses Line Interactive topology. This design provides voltage regulation and protection against sags and surges, which is beneficial for protecting sensitive electronics from power fluctuations. The Vertiv Liebert PowerUPS 400VA Lithium-Ion does not list its topology in the available specifications. While many small UPS units are line interactive or offline, the lack of explicit data makes direct comparison difficult. If you require guaranteed voltage regulation features, the specified Line Interactive topology of the 1350VA model is a known quantity. The Liebert model’s internal topology remains unspecified in the provided data.
Physical Dimensions
The physical size difference between these two units is substantial. The Vertiv Liebert PowerUPS 400VA Lithium-Ion is compact, measuring 4.17 inches in width, 5.51 inches in height, and 8.27 inches in length. It weighs only 3.9 pounds. The Vertiv 1350VA 850W Line Interactive UPS is much larger, with dimensions of 4.72 inches wide, 11.4 inches high, and 16.9 inches long. It also weighs 22.2 pounds. If desk space is limited, the Liebert model is far easier to place. The 1350VA unit requires a larger footprint and may need a dedicated floor space or a sturdy shelf due to its weight and size.
Output Ports
The Vertiv 1350VA 850W Line Interactive UPS provides a variety of output options. It includes six battery and surge protected NEMA 5-15R outlets, two surge-only NEMA 5-15R outlets, and both USB-A and USB-C charging ports. This allows you to power multiple devices and charge mobile gadgets directly. The Vertiv Liebert PowerUPS 400VA Lithium-Ion does not list its specific outlet configuration in the provided data. If you need to connect several pieces of equipment simultaneously or charge devices via USB, the 1350VA model offers clear connectivity advantages. The Liebert model’s port availability is unspecified.
Warranty Coverage
The Vertiv Liebert PowerUPS 400VA Lithium-Ion comes with a five-year warranty that covers both the full unit and the battery, including advanced replacement service. This provides long-term peace of mind for your investment. The Vertiv 1350VA 850W Line Interactive UPS mentions a 300,000 Equipment Protection Program, but the specific warranty duration for the UPS hardware and battery is not detailed in the provided data. If comprehensive five-year coverage for the entire unit is a priority, the Liebert model’s stated warranty is a distinct advantage. The 1350VA model’s warranty terms require further verification.
Which UPS fits your power needs
Users needing long battery life and high temp tolerance
This 400VA model uses Lithium-Ion batteries for up to three times the life of lead-acid options. It withstands temperatures up to 104⁰ F. The five-year warranty covers the full unit and battery. Its compact size of 4.17 by 5.51 inches saves space. Choose this if you prioritize longevity and heat resistance over raw power output.
Users powering multiple devices with high wattage demands
This 1350VA unit delivers 850W of continuous output power. It features six battery-protected outlets and two surge-only ports. The line interactive topology provides reliable voltage regulation. With a color LCD and alarm management, it offers detailed status monitoring. Select this option if you need to support heavier equipment loads and more connected devices.
Users who want quiet operation and easy maintenance
The Liebert PowerUPS includes a dedicated alarm mute button to suppress unnecessary noise. Its Lithium-Ion battery reduces maintenance labor and replacement frequency. The five-year advanced replacement warranty simplifies support. The smaller 3.9-pound footprint makes it easy to place in tight spaces. Opt for this model if you value low maintenance and quiet environments.
The products compared
Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS
Best for: small electronics in warm spaces
- Apparent Power
- 400VA
- Output Wattage
- 240W
- UPS Topology
- Standby
- Total Outlets
- 4
- Battery Chemistry
- Lithium-Ion
- Form Factor
- Wall Mountable
View on Amazon: Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS Affiliate link
The Vertiv Liebert PowerUPS 100 PUL-400LVT is a 400VA line-interactive UPS featuring a lithium-ion battery. It operates in temperatures up to 104°F and includes an alarm mute function. This compact unit suits small electronics in warm spaces. You get long battery life and a five-year warranty. It is ideal for tight spots where heat is a concern.
Pros
- Lithium-ion battery chemistry for extended life
- Operates in temperatures up to 104°F
- Five-year full-unit and battery warranty
- Built-in alarm mute button
Cons
- Low 400VA capacity limits connected load
- No remote management or app control listed
- Limited to basic line-interactive protection
Good fit if
- You need backup for small devices
- You operate in a warm environment
- You want low maintenance battery life
Skip if
- You need to power high-wattage gear
- You require smart monitoring features
- You need extended runtime capacity
Verdict: Vertiv Liebert 400VA Lithium-Ion UPS delivers reliable backup for light loads in hot areas. It fits users who prioritize battery longevity and simple operation over high capacity or remote management.
Vertiv 1350VA 850W Line Interactive UPS
Best for: Desktop PC backup with high outlet count
- Apparent Power
- 1350VA
- Output Wattage
- 850W
- UPS Topology
- Line Interactive
- Total Outlets
- 10
- Voltage Regulation
- AVR
- Warranty
- 3-Year Warranty
View on Amazon: Vertiv 1350VA 850W Line Interactive UPS Affiliate link
The Vertiv PSA6-1350LVT is a line interactive desktop UPS rated at 1350VA and 850W. It features six battery-backed outlets and two surge-only ports. You get USB-A and USB-C charging, plus a color LCD for monitoring. This unit suits users needing reliable backup for desktop setups, offering user-replaceable batteries and a substantial 22.2-pound build for stability.
Pros
- 1350VA apparent power and 850W output capacity
- Six battery-backed and surge-only NEMA 5-15R outlets
- Built-in USB-A and USB-C charging ports
- Color LCD display with alarm management features
Cons
- Large physical footprint at 16.9 inches in length
- Heavy 22.2-pound weight limits portability
- Simulated sine wave output may not suit all sensitive electronics
Good fit if
- You need high wattage backup for a desktop PC
- You prefer a desktop form factor over a tower
- You want visible status monitoring via a color LCD
Skip if
- You require pure sine wave output for sensitive gear
- You need a compact or portable unit for travel
- You want battery runtime for extended outages
Verdict: Vertiv PSA6-1350LVT Desktop UPS provides robust 850W backup for desktop workstations. It fits users who prioritize outlet count and visual monitoring over compact size or pure sine wave output.
Specifications side by side
| Spec | Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS | Vertiv 1350VA 850W Line Interactive UPS |
|---|---|---|
| Apparent Power | 400VA | 1350VA |
| Output Wattage | 240W | 850W |
| UPS Topology | Standby | Line Interactive |
| Total Outlets | 4 | 10 |
| Battery Chemistry | Lithium-Ion | not stated |
| Form Factor | Wall Mountable | not stated |
| Voltage Regulation | not stated | AVR |
| Topology | not stated | Line Interactive |
| Warranty | 5 Year Warranty | 3-Year Warranty |
| Outlets | not stated | 10 Outlets |
| Certification | Energy Star Certified | not stated |
| Display Type | not stated | LCD Display |
| Dimensions | 8.27 × 4.17 × 5.51 inches | 16.9 × 4.72 × 11.4 inches |
| Weight | 3.9 pounds | 25.8 pounds |
| Size | 400VA | 1350VA/850W |
| Color | Black | Black |
| Model | PUL-400LVT | PSA6-1350LVT |
Frequently asked questions
Which UPS is better for a desktop PC?
The Vertiv 1350VA 850W Line Interactive UPS is the better choice for desktop computers. It delivers 850W of output power, which handles the higher loads of workstations. The 400VA model only provides 400VA capacity, which is too low for most PC setups. You should select the larger unit for reliable desktop backup.
Does the 400VA model use Lithium-Ion batteries?
Yes, the Vertiv Liebert PowerUPS 400VA Lithium-Ion UPS uses Lithium-Ion battery chemistry. This technology typically offers longer life and better performance in warm environments compared to lead-acid options. The 1350VA model does not list Lithium-Ion technology in its specifications. You get extended battery longevity with the smaller 400VA unit.
How much space does each UPS take up?
The 400VA unit measures 8.27 inches in length and weighs 3.9 pounds. It is a compact option for tight spaces. The 1350VA model is much larger, measuring 16.9 inches in length and weighing 22.2 pounds. You need significantly more desk or floor space for the higher capacity unit.
Can the 400VA UPS run high-power equipment?
No, the 400VA UPS is designed for light loads and small electronics. Its 400VA capacity limits the total power you can draw from it. High-power equipment like desktop PCs or servers requires more wattage. The 1350VA model supports 850W, making it suitable for heavier loads that the 400VA unit cannot handle.
What is the difference in physical size?
The 400VA model is small, with a height of 5.51 inches and a width of 4.17 inches. The 1350VA unit is taller at 11.4 inches and wider at 4.72 inches. The larger unit is also much heavier. You should choose the 400VA model if you prioritize a compact footprint for your workspace.
Is the 1350VA model a line interactive UPS?
Yes, the Vertiv 1350VA 850W Line Interactive UPS uses line interactive topology. This design provides voltage regulation and faster switching during power events. The 400VA model does not specify its topology in the provided data. You get standard line interactive protection with the larger 1350VA unit for your connected devices.
Which unit is lighter to move?
The Vertiv Liebert PowerUPS 400VA Lithium-Ion is lighter, weighing only 3.9 pounds. The 1350VA model weighs 22.2 pounds due to its larger components and capacity. If you need to move your UPS frequently, the smaller 400VA unit is easier to handle. The heavier unit is best for stationary desktop placement.