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How to select the best battery backups for home office and desktop applications

Battery backups are an essential component of the “new normal” work from home environment. 

Ensuring that critical home and small office applications are safeguarded by an uninterruptible power system (UPS) has never been more important. With a record number of telecommuters──coupled with widespread online learning for both lower- and higher-ed students──many utility companies are struggling to support the proliferation of power-hungry devices in homes. As a result, electronic equipment is more vulnerable than ever to harmful surges and power cuts.

A UPS with surge protection is one of the most simple, cost-effective investments to prevent data loss and equipment damage during a blackout or surge, seamlessly switching to battery and continuing to power connected equipment until the issue is resolved or you’re able to safely shut down devices.

To help you hone in on the optimal UPS solution for your home or small office, we’ve compiled the following 10 buying tips:

1) Determine the equipment you want to protect

Even the most brief surge or loss of electricity can be catastrophic to sensitive electronic equipment in home and small office environments, with sudden shutdowns capable of corrupting files and damaging or destroying home devices. But it’s not just your PCs, routers, modems, small servers, switches and storage devices that need protection. Desktop UPSs aren’t all work and no play; battery backup is also ideal to safeguard numerous other home devices including TVs, gaming consoles, home theater solutions, security systems and household medical equipment such as CPAP machines for sleep apnea. 

A small, inexpensive desktop UPS can keep home Wi-Fi and internet systems online during short outages or brownouts, while more advanced battery backup models can enable home office equipment and workstations to remain operational during business hours ─ or at least long enough to save work-in-progress and safely shut down. The same applies to video consoles, so gamers don’t surrender their hard-fought progress.

2) Consider the level of protection you need

Different UPS topologies provide varying degrees of protection against power problems. Choosing the best UPS for home or office use depends on your budget, equipment and environment. Standby and line-interactive UPS systems will properly support and protect desktop and small-office/home-office (SOHO) applications.

Standby or offline UPSs allow equipment to run off utility power while providing surge protection and switches to battery mode during voltage sags or outages, making it ideal for equipment such as LCD monitors, docking stations, modems and routers.

Line-interactive UPSs regulate voltage by boosting or decreasing utility voltage as needed before allowing it to pass to the protected equipment, making it suitable for high-end PCs and other valuable, sensitive electronics in areas with unstable power or frequent storms.

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The Eaton 5SC UPS display the voltage reading on an easy-to-read LCD screen.

3) Add up the watts

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The Eaton 5SC UPS display the wattage reading on an LCD screen. 

Most home and office UPSs are rated between 300 to 1,500 VA and designed to fit standard household outlets. While a UPS is rated in both volt-amperes (VA) and watts, the watts measurement is the key rating because it represents the amount of real power available. It's important to understand the relationship between watts and VA to correctly size an uninterruptible power system - visit this page to learn more.

A UPS must support the total maximum wattage rating for each piece of equipment you want to connect to prevent overload during an outage. Refer to the nameplate or manufacturer's documentation for each device to find its wattage or refer to Eaton's UPS selector that is loaded with wattage ratings for various equipment and can help calculate the maximum capacity. To leave a margin for error and fluctuating power demands during operation, select a UPS with an output capacity (VA) rating 20% higher than the estimated power requirements of your connected equipment. Also consider whether you want to leave room for future expansion. Visit our battery runtimes page to see how wattage affects each UPS models’ runtime.

4) Do you need sine wave protection?

The waveform of electrical power is a sine wave, which represents a smooth periodic oscillation. However, standby UPSs and some line-interactive models provide a simulated or square wave output while running on battery power. Because this simulated power output can stress and harm the power supply in sensitive electronics such as servers, a line-interactive UPS with sine wave output is a better choice for these types of equipment.

The Eaton 5SC pure sine wave UPS provides high-quality output voltage for wider compatibility with today’s active power factor corrected (PFC) power supplies in sensitive IT equipment. Without using its batteries, the 5SC UPS corrects a wide range of input voltage variations through continuous voltage regulation.

5) Make sure the UPS has enough outlet receptacles

When choosing a battery backup solution, it's crucial to ensure it has enough output receptacles to accommodate all your equipment. The INTERNET350U has a total of 6 output receptacles—3 with surge and battery protection and 3 with surge protection only. However, it's not just about the number of receptacles but also the physical space around them. Devices with AC adapters or large transformer block plugs take up more space than a standard plug and can cover more than one outlet on the UPS. Desktop UPS models like the INTERNET350U have outlets with extra space around them to fit larger plugs without blocking adjacent outlets. 
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6) What’s your noise toleration level?

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UPS systems can be surprisingly loud and many are designed to be deployed in even noisier network closets, server rooms and industrial settings. If you need a quiet environment for concentration or conference calls, be sure to check a unit’s audible noise specifications (measured in dBA). Both of these desktop UPS models, the Eaton 3S and 5S, are known for providing very quiet operation. The 5SC500 UPS is a fan-less UPS, which is another option for quiet operation.

7) Consider where and how you will install the UPS

A UPS system requires clearance space in order to properly vent heat, so it is important not to install the unit in a tight area or enclosed space. If space is a concern, consider the sleek design of this UPS with surge protection (3S), which fits neatly under a desk, inside an entertainment center or can be mounted on a wall. In addition, the slim form factor of the 5S enables the UPS to easily fit into small spaces, with the convenient option of using it as a tower or as a desktop monitor stand. 
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The Eaton 3S can be mounted to a wall or to the side of a desk
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The Eaton 5S UPS can double as a monitor stand

8) Want UPS status at a glance?

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If you are the type of person who appreciates immediate access to critical information, then you may want an at-home UPS unit that includes an LCD interface. These displays provide key data on UPS system operation, such as battery time and outage tracking. Some battery backups for home models also allow users to configure parameters including output voltage, audible alarm and power input sensitivity. Both the Eaton 5S and 5SC provide user-friendly LCD interfaces.

9) All warranties are not created equal

When comparing desktops models for home use, be sure to check the warranty. How long does it last? Does it cover both the UPS and its batteries? Is shipping included? Are the batteries user-replaceable?​ Eaton products—including the 3S, 5S and 5SC—come with an industry-leading, comprehensive 3-year warranty that covers both the UPS unit and its batteries. For more coverage, look at extended warranty plans that allow you to get an overnight replacement for your UPS if something goes wrong with it. 
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10) Add another layer of protection with software

While UPS battery backup are designed to protect your connected equipment from power anomalies and provide a backup source during a power failure, they can only do so much if electricity is not restored before your available battery expires. Yet by pairing the 5S or 5SC UPS with Eaton's Intelligent Power Protector (IPP), you can avoid data loss by the software facilitating automatic, graceful shutdown of computers, servers and network devices, saving all work-in-progress. IPP’s versatile user interface displays detailed information about connected equipment through USB and serial or network communication.

11) Do you need remote management capabilities?

Eaton’s Desktop UPS systems offer a user-friendly solution with compact housing that allows for flexible placement, easy management, and scalability. Whether you’re deploying a single UPS or an entire fleet, our systems enable remote management via a mobile app or web browser, saving you time, hassle, and the expense of frequent on-site visits across your various environments.
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Compare Eaton's home office and desktop UPS

3S UPS

5S UPS

5SC UPS