10 Best Uninterruptible Power Supplies 2025 in the United States

The APC by Schneider Electric SRT3000RMXLT 3kVA 208V Smart UPS is a robust uninterruptible power supply designed to provide reliable backup power. With a power capacity of 3000VA (3kVA), it's well-suited for small to medium-sized businesses needing to protect critical equipment from power interruptions.

The product features multiple outlets, ensuring that several devices can be connected simultaneously, making it versatile for different setups. The rack-mount form factor (34 x 23 x 9 inches) and substantial weight (69 pounds) may require dedicated space and robust support for installation. The UPS provides a sine wave output, ensuring compatibility with sensitive electronics like servers and network equipment.

Additional features such as high availability and scalability enhance its appeal, making it a flexible and cost-effective choice for growing businesses. This UPS is a reliable choice for those in need of a powerful and flexible backup power solution.

The APC UPS, 1000VA Smart-UPS with SmartConnect and NMC offers reliable power backup with a capacity of 1000VA / 800W, making it suitable for small to medium-sized devices. It provides pure sine wave output, which is ideal for sensitive electronics. The unit includes 6 NEMA 5-15R battery backup outlets, allowing multiple devices to be connected simultaneously.

Its short-depth, 2U rackmount form factor is space-efficient, making it a good fit for professional environments where space is at a premium. The multi-function LCD console provides comprehensive status and control information, which enhances usability. The inclusion of a Network Management Card and SmartConnect feature allows for remote monitoring and management, improving convenience and support.

The SmartConnect feature offers a 6-month free trial, which is particularly beneficial for users new to remote UPS management. The 46-pound weight might be cumbersome for some users, but the warranty offering of 5 years for repair or replace is a strong point, ensuring peace of mind for extended use. This UPS is well-suited for IT professionals and businesses looking for a reliable and manageable power backup solution.

The Vertiv Liebert PSI5 Lithium-Ion UPS is a robust power backup solution ideal for those seeking reliability and extended battery life. Its standout feature is the lithium-ion battery, which lasts twice as long as traditional VRLA batteries, reducing the need for frequent replacements and lowering total ownership costs. The UPS has a decent 1920VA/1920W power capacity, making it suitable for supporting multiple devices simultaneously. With a sine wave output and a 0.9 power factor, it provides a stable power supply, which is crucial for sensitive electronics.

This UPS offers a practical battery runtime, providing up to 8.6 minutes at full load and 19 minutes at half load, which should be sufficient for safely shutting down devices during a power outage. Additionally, its quick recharge time of 2.1 hours to full capacity is beneficial for minimizing downtime.

In terms of form, the 2U size allows flexibility for both rack and tower installation, catering to varied setups. However, at 52 pounds, it is relatively heavy, which might require careful consideration for installation. Backed by a 5-year warranty, including batteries, it provides peace of mind regarding durability and support. This UPS is well-suited for medium to large setups in home or office environments where dependable power backup with minimal maintenance is desired.