10 Best Ups Backups 2025 in the United States

The Amazon Basics Line Interactive UPS is designed to offer a reliable power backup solution for home and office electronics, making it suitable for users looking to protect their devices from outages and surges. With a power capacity of 1000VA and 550W, it provides decent support for multiple devices, thanks to its 9 outlets, which include both surge-protected and battery-backup options. This could be particularly beneficial for anyone looking to keep their computers, gaming consoles, and home entertainment systems running during power interruptions.

One of the standout features is the automatic voltage regulation (AVR), which helps maintain a stable power supply, preventing potential damage from fluctuations. The mini tower design with a 6-foot power cord makes it easy to place in various locations without taking up too much space, which is a plus for smaller setups.

There are some limitations to be aware of. The UPS has a maximum load recommendation of 80% of its rated capacity for optimal performance, which may restrict users who want to connect multiple high-powered devices. Additionally, while the lead-acid battery composition is standard, it may not be as efficient or long-lasting as some newer battery technologies available on the market.

The Liebert GXT4 UPS, though now obsolete and replaced by the GXT5 model, still offers significant features for robust power protection. It provides a high power capacity of 6000VA/4800W, which is suitable for critical systems requiring consistent power. Its online double-conversion technology ensures clean, stable power by continuously conditioning the power supply, greatly extending battery life.

The integrated communications card allows for remote monitoring and management, adding a layer of convenience for users needing oversight of multiple systems. The UPS also features a seamless transfer to battery power, ensuring uninterrupted operation during power outages. However, the battery runtime at full load is up to 5 minutes, which might be inadequate for some users without additional external battery cabinets for extended periods.

The unit is versatile, with both rack-mount and tower form factors, but its size and weight might be cumbersome for smaller setups. Included accessories, such as the rack-mounting rail kit and various cables, add value and ease installation. This product is best suited for environments requiring high capacity and reliable power protection, such as data centers or critical network infrastructures. However, users should consider the updated GXT5 model for more current features and potential improvements.

The Vertiv Liebert PSI5 Lithium Ion UPS is a solid choice for those needing reliable backup power in a compact rack or tower form. With a power capacity of 1920VA/1920W and a 0.9 power factor, it can support moderate to heavy loads typical for servers or networking equipment. Its lithium-ion batteries are a major plus, lasting about twice as long as traditional batteries, which means fewer replacements and a lower total cost over time. You can expect around 8.6 minutes of backup at full load—enough to safely shut down your devices or bridge short outages—and over 19 minutes at half load, which is quite generous for a UPS this size. Recharge speed is also impressive, reaching full battery in just over 2 hours.

The unit includes Automatic Voltage Regulation (AVR) and surge protection, helping keep your devices safe from power spikes and voltage fluctuations. One thing to note is it has a limited number of outlets typical for rack-mount units, so ensure your critical devices can connect without extra adapters. While it weighs 52 pounds and measures under 4 inches in height, its metal construction makes it sturdy for data center or office use. This UPS also comes with a reassuring 5-year warranty covering both the device and its battery.

If you need a UPS with a good balance of runtime, reliability, and modern lithium-ion technology for professional or small business needs, the Vertiv Liebert PSI5 is worth considering. For those requiring longer runtimes or more outlets, larger or additional units may be necessary.