How to Choose the Best Uninterruptible Power Supply for Your Needs

With so many people working from home, lots of attention has been dedicated to making sure everyone has a functional computer, a reasonably ergonomic workspace, and a decent videoconferencing setup. One thing that many have overlooked, however, is the need for a reliable uninterruptible power supply (UPS). Particularly for those using desktop Macs or external hard drives, a UPS is essential because it protects your work—and your devices—against surges, brownouts, and outright power failures. That’s especially helpful as we head into the summer thunderstorm and fall hurricane season.​

What is a UPS?
Put simply, a UPS is a big battery into which you plug your Mac and other peripherals. It then plugs into a wall outlet and monitors the incoming power. If the normal power fails, or surges or falls below a certain threshold, the UPS notices and switches the power source to its internal battery. This happens so quickly that your Mac never even notices.​

How to Choose

Choosing the best Uninterruptible Power Supply (UPS) for your needs involves considering several key factors:

1. Load Requirements: Calculate the total power load (in watts) of the equipment you need to protect. The UPS you choose should have a capacity (VA/Watt rating) that comfortably exceeds this load.

2. Battery Runtime: Determine how long you need the UPS to provide power during an outage. This depends on whether you need just enough time for a safe shutdown or longer backup for continued operation.

3. Topology: UPS systems come in various topologies, such as Standby, Line-Interactive, and Online (Double-Conversion). Online UPS offers the highest protection but can be costlier.

4. Number of Outlets: Ensure the UPS has enough outlets to accommodate all the devices you want to protect.

5. Voltage and Frequency Compatibility: Make sure the UPS is compatible with the voltage and frequency of your region’s power supply.

6. Type of Waveform: Some equipment, especially sensitive electronics, may require a pure sine wave output for optimal performance. Check if the UPS provides this.

7. Software and Connectivity: Look for a UPS that offers software for remote monitoring and shutdown, as well as connectivity options like USB, Ethernet, or serial ports.

8. Budget: Consider your budget constraints and find a UPS that balances your needs with affordability.

9. Brand and Reputation: Choose reputable UPS brands known for reliability and customer support.

10. Warranty and Support: Check the warranty and available customer support for the UPS.

11. Environmental Factors: Consider factors like available space, temperature, and noise when selecting a UPS.

12. Scalability: If your power needs may change in the future, consider a UPS that can be easily expanded or upgraded.

13. Certifications: Look for UPS systems that meet relevant industry standards and certifications.

14. User Reviews: Research user reviews and experiences to get real-world feedback on the UPS models you’re considering.

It’s essential to tailor your UPS choice to your specific requirements. If in doubt, consult with a professional or seek guidance from the UPS manufacturer to ensure that the UPS you select can adequately protect your equipment and meet your needs.