10 Best Ups Uninterrupted Power Supplies 2025 in the United States

The Amazon Basics UPS Battery Backup & Surge Protector offers a 400VA/255W power capacity, making it suitable for small home networks, IoT devices, and home entertainment systems. With 6 outlets in total, it includes 3 surge-protected outlets and 3 outlets that provide both battery backup and surge protection. This ensures that your devices are protected during power surges and can stay powered on during short outages, giving you enough time to shut them down properly during longer outages.

The compact size (7.24 x 4.33 x 3.22 inches) allows it to fit easily into any home or office setup, and the 5-foot cord with a right-angle plug adds convenience for various placement options. One notable feature is the Automatic Voltage Regulation (AVR), which helps maintain a steady voltage, preventing damage to your devices from voltage fluctuations.

The device also supports communication through downloadable power management software, which can be useful for monitoring and managing power usage. It is essential to keep the load below 80% of the rated capacity to ensure optimal performance. This UPS is a solid choice for users needing basic power protection for smaller devices.

The Amazon Basics UPS Battery Backup & Surge Protector offers a compact and efficient solution for ensuring uninterrupted power to your devices during outages and power surges. With an 800VA/450W power capacity, it's suitable for desktop computers, home networks, IoT devices, and home entertainment systems. It features a total of 12 outlets, with six dedicated to surge protection and six providing both surge protection and battery backup, allowing you to connect multiple devices simultaneously.

The small form factor makes it easy to integrate into any home or office environment, and the 5-foot cord with a right-angle plug enhances user convenience in tight spaces. However, it operates as a standby UPS, which might not provide the purest sine wave output compared to higher-end models, potentially affecting the performance of sensitive electronics. Additionally, it lacks Automatic Voltage Regulation (AVR), which means it may not handle voltage fluctuations as efficiently as AVR-equipped models.

While it offers a reliable battery runtime for short outages, you'll need to ensure your connected devices don't exceed 80% of the unit's rated capacity for optimal performance. The downloadable power management software can help monitor the UPS's status, although the lack of communication ports means remote management is limited. This UPS is best suited for users with moderate power needs looking for a cost-effective and space-saving solution.

The EATON CORPORATION Uninterrupted Power Supply (9PX3000GLRT) is a robust option in the UPS category, especially suited for critical systems requiring a reliable power source. With a power capacity designed to handle substantial loads, it ensures that even power-hungry devices remain operational during outages. The double-conversion online topology provides superior power quality by delivering consistent and clean power, which is ideal for sensitive equipment. Additionally, the built-in automatic voltage regulation (AVR) stabilizes the incoming power, further protecting your devices from voltage fluctuations.

The UPS features a full system self-test at power up and an ABM test every 30 days, ensuring the system is always functioning optimally and extends the battery life. Users will also appreciate the detachable L6-20P to C19 input cord for flexibility in setup. However, the unit is relatively heavy at 60.4 pounds, which might be cumbersome for some users to install or move. Its size, with dimensions of 23.8 x 17.3 x 3.4 inches, requires adequate space for installation.

Users looking for a reliable and high-capacity UPS will find the EATON 9PX3000GLRT a capable choice, though its weight and size are considerations to keep in mind.